The equation for g(x) is g(x) = x²-3
When x=0, f(x)= 0 and so has a vertex at (0,0)
Given that g(x) is a shifter version of f(x) and has a vertex at (0,-3), g(x) must be shifted down the y axis such that g(x)= x2+c when x=0 and g(x)= -3 -3=0+c c=-3 when x=3.
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i need this answer asap pleasee
Answer:
The equation of the line is y=3x+3
how loud a sound is depending on how far away you are PLEASE !!!!!help asap
distance to sound level dB
85
79
73
67
listener
5
10
20
40
Answer:
2346 dl sheep
Step-by-step explanation:
all well STrxrcgvw'#'zuucrb if ivAr4w3ws4
What is the solution to the equation 6x - 5 = 25?
Solution
Step 1
Write the equation
[tex]6x\text{ - 5 = 25}[/tex]Step 2
Apply the addition equality theorem
[tex]\begin{gathered} 6x\text{ - 5 = 25} \\ \\ Add\text{ 5 to both sides:} \\ \\ 6x-5+5=25+5 \\ \\ 6x\text{ = 30} \end{gathered}[/tex]Step 3
Use the division equality theorem:
[tex]\begin{gathered} 6x\text{ = 30} \\ \\ Divide\text{ both sides by 6} \\ \\ \frac{6x}{6}\text{ = }\frac{30}{6} \\ \\ x\text{ = 5} \end{gathered}[/tex]Final answer
x = 5
One meter is about 3.3 ft. Use this information to determine
a) the equivalent of one square meter in square feet.
b) the equivalent of one cubic meter in cubic feet.
The equivalent of one square meter in square feet is ____ft^2
The equivalent of one square meter in square feet is 10.89 [tex]ft^{2}[/tex] and of one cubic meter in cubic feet is 35.937 [tex]ft^{2}[/tex].
One meter is about 3.3 ft. So, we can write
1 meter = 3.3 ft
Part : A
We know, 1 meter = 3.3 ft
On squaring both sides of this equation, we will get
[tex](1 meter )^{2}[/tex]= [tex](3.3 ft )^{2}[/tex]
1 [tex]meter^{2}[/tex] = 10.89 [tex]ft^{2}[/tex] equation 1
The equivalent of one square meter in square feet is 10.89 [tex]ft^{2}[/tex] .
Part : B
We know, 1 meter = 3.3 ft
On taking cube on both sides of this equation, we will get
[tex](1 meter )^{3}[/tex]= [tex](3.3 ft )^{3}[/tex]
1 [tex]meter^{3}[/tex] = 35.937 [tex]ft^{3}[/tex] equation 1
The equivalent of one cubic meter in cubic feet is 35.937 [tex]ft^{2}[/tex]
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In a survey of 3400 people asked about their ice cream preference, 1600 enjoyed chocolate, 1250 enjoyedvanilla, 1700 enjoyed mint, 700 enjoyed mint and chocolate, 500 enjoyed mint and a vanilla, 600 had achocolate and vanilla, and 200 enjoyed mint, chocolate, and vanilla.a. How many people enjoyed vanilla, but not chocolate or mint? b.How many people did not enjoy chocolate, vanilla, or mint?
Answer:
Step-by-step explanation:
To understand the situations we must do a Venn diagram:
The total of people asked is 3400. Then,
a) For People who enjoyed vanilla but not chocolate or mint, seeing the diagram of Venn, we can deduce the equations:
[tex]undefined[/tex]b) For people who did not enjoy chocolate, vanilla or mint:
[tex]undefined[/tex]Please Help With This.
The angle m∠FCD is 56°
Here the line CF is an angle bisector of ∠GCD.
By this we have,
∠GCF = ∠FCD
It is given that
∠GCF = ∠GCB - 12°
Let ∠GCB be x.
∠GCF = x - 12° = ∠FCD
BCD is a straight line which form 180°.
∠BCG + ∠GCF + ∠FCD = 180°
x + x - 12° + x - 12° = 180°
3x = 204°
x = 68°
∠FCD = x - 12°
= 68° - 12°
= 56°
Therefore m ∠FCD = 56°.
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3) Store A sells 36 pack box of chocolates for $54. Store B sells 6-pack boxes of the same size chocolates for $12. Which store offers a better deal? (Organize your information in the tables given below) Store A Store B # of Chocolates Price $ Price $ # of Chocolates.
3) Store A sells 36 pack box of chocolates for $54. Store B sells 6-pack boxes of the same size chocolates for $12. Which store offers a better deal? (Organize your information in the tables given below) Store A Store B # of Chocolates Price $ Price $ # of Chocolates.
________________________________
# of Chocolates Price Ratio (Price per chocloate)
Store A 36 pack box 54 54/ 36 = 3/2 = 1.5
Sotre B 6-pack boxes 12 12/ 6 = 2
_____________________________
Store A 1.5
______________________________
Answer
Store A offers a better deal
A construction crew is lengthening a road. The road started with a length of 54 miles, and the crew is adding 3 miles to the road each day.
Let L represent the total length of the road (in miles), and let D represent the number of days the crew has worked. Write an equation relating L to D. Then use this equation to find the total length of the road after the crew has worked 37 days.
The equation for calculation of total length is L = 54 + 3D and the total length for 37 days 165 miles.
The equation will be formed as total length will be sum of first length travelled with the product of number of miles travelled each day and number of days. Representing this as the equation -
L = 54 + 3D
Now, keep the value of D in formula to find the total length.
L = 54 + 3×37
Performing multiplication on Right Hand Side of the equation
L = 54 + 111
Performing addition on Right Hand Side of the equation
L = 165 miles
Therefore, the equation is L = 54 + 3D and total length is 165 miles.
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find the equation of the line
use exact number
y= x+
Answer:
[tex]y=\frac{-1}{3}x+5[/tex]
Answers being -1/3 and 5
Step-by-step explanation:
In slope-intercept form, you seem to be missing your slope and intercept. Luckily, the graph has everything you need.
Recall slope is rise over run or y over x.
[tex]m=\frac{y2-y1}{x2-x1}[/tex]
The slope of this line can be determined by counting the x and y movements of the line between two intersections where it evenly collides. For instance, between (0,5) and (3,4), the line moves right three and down one.
This would give you a slope of -1/3.
Another way to find the slope is to choose any two points and use the slope formula above. Using those same two points:
[tex]m=\frac{4-5}{3-0}[/tex]
[tex]m=\frac{-1}{3}[/tex]
Now you have the first part of your answer. The slope is -1/3.
The second part is the y coordinate of the y-intercept. In this case, the graph includes the intercept, which we can clearly determine is (0,5). Therefore, your second answer would be 5.
The full answer being [tex]y=\frac{-1}{3}x+5[/tex].
Let g(x) be the indicated transformation .Write the rule for g(x) Linear function defined in the table vertical translation down 2 units I will send you a picture
You have the following data set:
x 1 0 -3
y 5 4 1
Where y is a function of x. In order to translate the previous function 2 unitd downward, you take into account that you subtract 2 units to the given values for y. Then, you have:
y (5-2) (4-2) (1-2)
which becomes:
y 3 2 -1
Finally, the given table becomes:
x 1 0 -3
y 2 2 -1
Indigo Depot is having a clearance sale of their spring items. All clearance items are marked an additional 35 % off the sale price. A dress that originally cost $120 beforeany discount is on sale for 20 % off. What is the final price? Round your answer to the nearest cent, if necessary.
From the information provided, The original price had a discount of 35% slash during he clearance.
This means the clearance sales price would be;
[tex]\begin{gathered} \text{Clearance price}=120-(120\times0.35) \\ \text{Clearance sales}=120-42 \\ \text{Clearance sales}=78 \end{gathered}[/tex]This means a dress that "originally" cost $120 now sells for $78 during the clearance sales.
The dress is now on sale for 20% off.
Therefore, the final price would be;
[tex]\begin{gathered} \text{ Final price}=78-(78\times0.20) \\ \text{Final price}=78-15.60 \\ \text{ Final price}=62.40 \end{gathered}[/tex]ANSWER:
The final price is $62.40
I need help with this
In other terms, imaginary numbers are those that have no known value and are represented by the square root of negative numbers. Most of the time, it is expressed as real values multiplied by an arbitrary unit called "i."
Is it possible for a quadratic to have both real and imaginary roots?Answer and justification Therefore, a quadratic equation with rational coefficients cannot have both a real and an imaginary root.
How can you find complex roots using Descartes' Rule of Signs?
We may determine the total number of positive + negative real roots using the rule of signs. We may get the potential number of complex roots by deducting this total from the polynomial's degree.
An imaginary integer is referred to as an imaginary zero if it produces a zero output when plugged into a polynomial (or a complex zero).
Complex numbers are those that are expressed as a+b, where a and b are actual numbers and I is a fictitious number called a "iota." I has the value (-1).
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what is the scale factor that creates the copy triangle DEF
The required scale factor is;
[tex]\frac{DE}{AB}=\frac{1.34}{2}=0.67=\frac{67}{100}[/tex]So, the required scale factor is 0.67 or 67/100
Find the slope, x-intercept, and y-intercept for the line 10x-7y + 7 = 0. The slope is The I-intercept is h The y-intercept is Note: Your answers must be decimals. Submit Question Jump to Answer
slope=1.43
y-intercept=1
x-intercept=-1.43
Explanation
Step 1
get the slope intercept form of the equation
[tex]y=mx+b\text{ (slope intercept equation)}[/tex]where
m is the slope and b is the y-intercept
to do this, isolate y
[tex]\begin{gathered} 10x-7y+7=0 \\ \text{subtract 10 x in both sides} \\ 10x-7y+7-10x=0-10x \\ -7y+7=-10x \\ \text{subtract 7 in both sides} \\ -7y+7-7=-10x-7 \\ -7y=-10x-7 \\ divide\text{ both sides by -7} \\ \frac{-7y}{-7}=\frac{-10x}{-7}-\frac{7}{-7} \\ y=\frac{10x}{7}+1 \end{gathered}[/tex]so,
[tex]\begin{gathered} \text{slope}=\frac{10}{7} \\ y-\text{intercept}=1 \end{gathered}[/tex]Step 2
to find the x-intercept replace the y value with zero in the equation
[tex]\begin{gathered} y=\frac{10x}{7}+1 \\ 0=\frac{10x}{7}+1 \\ \text{subtract 1in both sides} \\ 0-1=\frac{10x}{7}+1-1 \\ \frac{10x}{7}=-1 \\ \text{Multiply both sides by 7/10} \\ \frac{10x}{7}\cdot\frac{7}{10}=-1\cdot\frac{7}{10} \\ x=-\frac{7}{10} \end{gathered}[/tex]so, the x intercept is
[tex]-\frac{7}{10}[/tex]I hope this helps you
What is the value of the missing angle
Answer: 105
Step-by-step explanation:
Angles in a triangle add up to 180 degrees always, you already have two angles. Subtract those two angles from 180 then you have 75. A straight line always equals 180, and since we just found one angle on that line which is 75, just subtract 75 from 180 to get the answer.
Find the value of sin G rounded to the nearest hundreth if necessary
sin G = 0.84
Explanation:
[tex]\begin{gathered} GF\text{ = }\sqrt[]{35} \\ FE\text{ = }\sqrt[]{86} \\ GE\text{ = 11} \end{gathered}[/tex]We will apply trigonometry ratio SOHCAHTOA:
sin G is sine ratio (SOH)
sin G = opposite/hypotenue
[tex]\begin{gathered} \text{Angle = G} \\ \text{opposite = side opposite the angle G = }\sqrt[]{86} \\ \text{hypotenuse = longest side = 11} \end{gathered}[/tex][tex]\begin{gathered} \sin \text{ G = }\frac{\sqrt[]{86}}{11} \\ \sin \text{ G = }\frac{9.2736185}{11} \\ \sin \text{ G = 0.8431} \\ \\ To\text{ the nearest hundredth, } \\ \sin \text{ G = 0.84} \end{gathered}[/tex]. Explain in words:
José says the graph represents Terrence skating up a hill and then down a hill What
do you say to José?
from motion detector
A motion sensor, sometimes known as a motion detector, is a piece of technology that use a sensor to find nearby individuals or objects. Any security system needs motion sensors as a crucial part. A sensor will alert your security system and, with newer systems, your cell phone when it senses motion.
How does a motion sensor function?
Active ultrasonic motion detectors emit ultrasonic sound waves, which bounce off surrounding objects and return to the source of emission. The sensor initiates and completes the required action, whether it be turning on a light or sounding an alert, when a moving object interferes with the waves.
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15 points please help. Math. Marginal profit function
65.03x + 74757 is Marginal profit function .
What is profit?
The financial gain a business has when revenue exceeds costs and expenses is repeatedly alluded to as profit. One cup of lemonade, for instance, costs a child at a lemonade stand one quarter. She then charges $2 for the drink. She made $1.75 in profit just on cup of lemonade.Profit is the term used to describe the monetary gain experienced when the revenue from a commercial activity outpaces the costs, costs, and taxes incurred to support the activity in question.P(x) = 143 - 0.03x
C(x) = 75000 + 65x
C(x) - P(x) = 75000 + 65x - ( 143 - 0.03x)
= 75000 + 65x - 143 + 0.03x
= 65.03x + 74757
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HELP ME PLEASE !!!
REASONING An absolute value function is positive over its entire domain. How many x-intercepts does the graph of the function have?
● None
01
02
O Infinite
A line's x-intercept and y-intercept are the points at which the x- and y-axes, respectively, are crossed. We find it easier to graph linear equations when we consider intercepts.
What is a good x-intercept illustration?Where a line on a graph crosses the x-axis is known as the x-intercept. At that time, the y coordinate's value is zero. For instance, the x-intercept would be where the equation y = x + 5 crosses the x-axis at the location (-5, 0).
How do you calculate the math x-intercept?We set y = 0 and solve the equation for x to determine the x-intercept. This is due to the fact that the line crosses the x-axis at y=0. If an equation is not in the form y = mx + b, we can still solve for the intercepts by substituting 0 where necessary and then solving for the final variable.
What is an illustration of intercept?This is an illustration of a y-intercept. Think about the line y = x + 3. The point where this graph crosses the y-axis is (0,3). Therefore, the y-intercept of the line y = x+ 3 is (0,3).
The x-intercept is zero, right?If you can locate the x-intercept of a linear function, finding the zero should be simple. The x-coordinate of the x-intercept is zero.
The x-intercept can be positive or negative, but how do you know?Summary
The location on the graph where our line crosses the x-axis is known as the x-intercept.Positive numbers are to the right of the origin and negative numbers are to the left of the origin on the x-axis.The location on the graph where our line crosses the y-axis is known as the y-intercept.Which side of a graph is negative?Consider the numbers as being on the x-axis to help you remember this. The positive values are located to the right of the origin, and the negative values are located to the left of the origin.
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Can someone help me make a floor plan using the shapes on the scale factor sheet?
Answer:
k = 4
Explanation:
1) The triangles in example 1 are similar triangles but differs in size
We are to calculate the scale factor k
Using the formula
Scale factor k = size of the larger triangle/size of the smaller trinagle
Since they are similar triangles;
k = DF/AB
Given
DF = 48
AB = 12
Substitute the given values into the expression for k above to have;
k = 48/12
k = 4
Hence the scale factor from triangle ABC to DEF is 4
savings 50,000 in 30 years with a saving compounded monthly at an interest rate of 6%. How much would I need to deposit a month?
The amount that needs to be deposited to have a saving of $50,000 in 30 years at the given interest rate is $8,302.10.
How is the principal investment required?The compound interest formula is expressed as;
P = A / (1 + r/n)^nt
Where P is principal, A is amount accrued, r is interest rate is compound period and t is time elapsed.
Given the data in the question;
Accrued amount A = $50,000Interest rate r = 6%Compounded monthly n = 12Elapsed time t = 30 yearsPrincipal P = ?First, convert rate from percent to decimal.
Rate r = 6%
Rate r = 6/100
Rate r = 0.06 per year
To determine the principal, plug the given values into the formula above and solve or P
P = A / (1 + r/n)^nt
P = $50,000 / (1 + 0.06/12)^( 12 × 30 )
P = $50,000 / (1 + 0.05)³⁶⁰
P = $50,000 / (1.05)³⁶⁰
P = $8,302.10
Therefore, the principal investment is $8,302.10.
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2 dot plots. Both number lines go from 0 to 10. Plot 1 is titled fifth grade. There are 2 dots above 1, 3 above 2, 1 above 3, 4 above 4, 5 above 5, 5 above 6, 2 above 7, 2 above 8, 0 above 9, 0 above 10. Plot 2 is titled seventh grade. There are 2 dots above 0, 2 above 1, 3 above 2, 5 above 3, 5 above 4, 3 above 5, 3 above 6, 1 above 7, and 0 above 8, 9, and 10.
The dot plot shows the number of hours, to the nearest hour, that a sample of 5th- and 7th-grade students spend watching television each week. How do the medians compare?
The 5th-grade range is
.
The 7th-grade range is
.
The ratio of variation of 5th grade to 7th grade is
.
The range of the number of hours spent watching tv for the 5th grade is 6.
The range of the number of hours spent watching tv for the 7th grade is 7.
Th ratio of variation is 6/7.
What is the range?A dot plot is a graph used to represent a dataset using dots. A dot plot is made up of a number line and dots. The dots in the dot plot represent the frequency of the data.
Range is a measure used to measure the variation of a dataset. Range is the difference between the largest number in a data and the smallest number in the dataset.
Range = largest number - smallest number
Range of the 5th grade students = 8 - 1 = 6
Range of the 7th grade students = 7 - 0 = 7
Ratio of variation of 5th grade to 7th grade = range of 5th grade / range of 7th grade
6 / 7
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In a recent year, 31.4% of all registered doctors were female. If there were 47,300 female registered doctors that year, what was the total number of registered doctors?
Proportionately, the total number of registered doctors, based on the ratio of female doctors, is 150,637.
What is proportion?Proportion refers to the quantity relationship of a variable contained in another.
Using proportion, two values are equated to each other.
For instance, we equate the percentage of registered female doctors to the number of registered female doctors.
Proportions, like ratios, are stated as fractions, decimals, or percentages because they depict the portion of a variable in another.
The ratio of registered female doctors = 31.4%
The number of registered female doctors = 47,300
31.4% = 47,300
100% = 47,300/31.4% x 100
The total number of registered doctors = 150,637 (47,300/31.4%)
Thus, the total number of registered doctors is 150,637, given that 47,300 female registered doctors proportionately represent 31.4% of the population.
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A bicycle company is manufacturing a new bicycle and trying to decide on a price that will maximizing their profit. the graph below represents profit (P), in thousands of dollars,generated by the price of each bike (x), in hundreds of dollarsIf the company wants to make a maximum profit,what should the price of the bicycle be?
The graph shows the profit (measured in thousands of dollars) on the y-axis and the price per bike (measured in hundreds of dollars) on the x-axis, the parabola describes the relationship between both variables.
As you can see the parabola opens downwards, which means that the maximum value of the relationship is determined by the vertex of the curve.
The coordinates of the vertex indicate the value of the bikes (x-coordinate) that allows the company to make the maximum profit (y-coordinate)
Looking at the graph the coordinates for the vertex are, approximately, (6, 160)
x-coordinate: 6 hundreds of dollars
y-coordinate 160 thousands of dollars
The maximum profit will be $160,000, and they will reach it when the bicycles cost $600
Change the function, y=3(0.5)^x,to a function with base e
Answer:
y = 3(e)^(-0.69x)
Explanation:
Taking into account the following property
[tex]a=e^{\ln a}[/tex]We can replace (0.5)^x by
[tex]\begin{gathered} 0.5^x=e^{\ln \text{ (0.5\textasciicircum{}x)}} \\ 0.5^x=e^{x\ln (0.5)} \end{gathered}[/tex]So, now we can rewrite the function as
[tex]\begin{gathered} y=3e^{x\ln (0.5)} \\ y=3e^{x(-0.69)} \\ y=3e^{-0.69x} \end{gathered}[/tex]Therefore, the answer is
y = 3(e)^(-0.69x)
Answer:
y=3e^(ln0.5)x
Step-by-step explanation:
Diana bought a piece of cloth 48 inches wide and 1 yard long. It cost $12. She cut off one-fourth and used itto make a tablecloth. From the remaining material, she used a piece that was 12 inches wide and 12 incheslong to make a scarf and a piece 1.5 feet by 2 feet to make the cover for a pillow. Her sister saw Diana'ssewing efforts and said she really liked the material. She wanted to buy what was left to do some sewingof her own. Diana was willing to sell the leftover material for the rate that she had paid for it. How muchshould she charge her sister?
Answer
The amount that Diana's sister would buy the remaining 720 square inches piece of cloth = $5
Step-by-step Explanation
We are told that Diana bought a piece of cloth that was 48 inches wide and 1 yard long for $12.
Then, she had different parts of the cloth taken to do different stuff until the remaining piece of the cloth was to be bought by her sister at the same rate that she bought the original full piece of cloth.
Before we proceed, we need to establish and find the initial rate of the cloth, that is, how much is 1 unit of area.
Area of a rectangular figure (the cloth) = Length × Breadth
Length of the cloth = 1 yard = 36 inches
Breadth of the cloth = 48 inches
Area of the cloth = 36 × 48 = 1728 square inches.
1728 square inches of the cloth = $12
1 square inch of the cloth = (12/1728) = (1/144) dollars
So, now, we can now find how much of the cloth is removed.
- She cut off one-fourth of the cloth to make a tablecloth.
One-fourth of the 1728 square inches piec of cloth = (1/4) × 1728 = 432 square inches
- She used a piece that was 12 inches wide and 12 inches long to make a scarf.
Area of the piece she used to make a scarf = 12 × 12 = 144 square inches
- She used a piece that was 1.5 feet by 2 feet to make a cover for a pillow.
To find the area of this piece, we need to convert the dimensions into inches.
1 feet = 12 inches
So,
1.5 feet = 18 inches
2 feet = 24 inches
Area of this piece of cloth = 18 × 24 = 432 square inches
So, her sister now wants to buy the remaining piece of cloth from Diana.
Originally, the piece of cloth was 1728 square inches.
The total area removed from the original piece of cloth sum up to
432 + 144 + 432 = 1008 square inches.
The remaining piece of cloth will now have an area calculated by subtracting the area of pieces removed from the original area of the piece of cloth.
The area of the remaining piece of cloth = 1728 - 1008 = 720 square inches
Recall that the Diana's sister wants to but the remaining piece of cloth at the rate that Diana bought the original piece of cloth.
We have calculated this rate at which Diana bough the original piece of clothing to be (1/144) dollars for 1 square inch. So, we can then use this rate to calculate the amount Diana's sister will pay for the remaining piece of cloth
Area of the remaining piece of cloth = 720 square inch
1 square inch costs (1/144) dollars.
Let the cost of 720 square inches be x.
1 square inch = (1/144) dollars
720 square inches = x dollars
We can from a mathematical relationship simply by cross multiplying
1 × x = 720 × (1/144)
x = 5 dollars.
Hence, the amount that Diana's sister would buy the remaining 720 square inches piece of cloth = $5
Hope this Helps!!!
For the guess and check method, we would still need to first find the cost of 1 square inch of material which we obtained to be (1/144) dollars per square inch of cloth.
We would also still need to calculate the total area removed from the cloth, which we calculated to be 1008 square inches.
But now, we will now use the cost of 1 square inch, to calculate the cost of the pieces that have been removed from the cloth.
1008 × (1/144) = 7 dollars.
We can now guess how many dollars will top up the 7 dollars so that it gives the original 12 dollars that the cloth was bought.
After a series of guess, we will end up to get that it is (7 + 5) that is equal to 12 dollars.
So, guess and check would give us 5 dollars too as the answer.
A woman earned wages of $34,600, received $1500 in interest from a savings account, and contributed $2700 to a tax-deferred retirement plan. She was entitled to a personal
exemption of $2900 and had deductions totaling $5090. Find her gross income, adjusted gross income, and taxable income.
If She was entitled to a personal exemption of $2900 and had deductions totaling $5090. her gross income is $36,100, adjusted gross income is $33,400 , and taxable income is $25,410.
Gross incomeGross Income:
Gross Income= Wages + Interest received
Gross Income= 34,600 + $1500
Gross Income= $36,100
Adjusted Gross Income:
Adjusted Gross Income = Income - Tax Def Contribution
Adjusted Gross Income = $36,100- $2,700
Adjusted Gross Income = $33,400
Taxable Income :
Taxable Income = AGI - Deductions - Personal exemption
Taxable Income= $33,400- $5,090 - $2,900
Taxable Income= $25,410
Therefore her gross income is $36,100.
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Brinlyn increased the amount of water she drank per day from 32 oz to 40 oz. By what percentage did Brinlyn increase the amount of water she drank each day?
Responses
Answer:
25%
Step-by-step explanation:
(40-32 / 32) × 100% = 25%
Solve the quadratic equation X^2+5x+6using the completing the square method. Be sure to explain each step.
We must solve the following quadratic equation by completing squares:
[tex]x^2+5x+6=0.[/tex]1) First, we rewrite the equation in the following way:
[tex]x^2+2\cdot\frac{5}{2}\cdot x+6=0.[/tex]2) We sum to both sides of the equation (5/2)², get:
[tex]x^2+2\cdot\frac{5}{2}\cdot x+(\frac{5}{2})^2+6=(\frac{5}{2})^2.[/tex]3) Expressing the first term as a square, we have:
[tex](x+\frac{5}{2})^2+6=\frac{25}{4}.[/tex]4) Passing the +6 at the left as -6 at the right:
[tex]\begin{gathered} (x+\frac{5}{2})^2=\frac{25}{4}-6, \\ (x+\frac{5}{2})^2=\frac{25}{4}-\frac{24}{4}, \\ (x+\frac{5}{2})^2=\frac{1}{4}. \end{gathered}[/tex]5) By taking the square root on both sides, we get two solutions:
[tex]\begin{gathered} x+\frac{5}{2}=+\frac{1}{2}\rightarrow x=\frac{1}{2}-\frac{5}{2}=-\frac{4}{2}=-2, \\ x+\frac{5}{2}=-\frac{1}{2}\rightarrow x=-\frac{1}{2}-\frac{5}{2}=-\frac{6}{2}=-3. \end{gathered}[/tex]Answer1) Re-writing the equation:
[tex]x^2+2\cdot\frac{5}{2}\cdot x+6=0.[/tex]2) Summing (5/2)² on both sides:
[tex]x^2+2\cdot\frac{5}{2}\cdot x+(\frac{5}{2})^2+6=(\frac{5}{2})^2.[/tex]3) Expressing the first term as a square:
[tex](x+\frac{5}{2})^2+6=\frac{25}{4}.[/tex]4) Simplifying:
[tex]\begin{gathered} (x+\frac{5}{2})^2=\frac{25}{4}-6, \\ (x+\frac{5}{2})^2=\frac{25}{4}-\frac{24}{4}, \\ (x+\frac{5}{2})^2=\frac{1}{4}. \end{gathered}[/tex]5) Taking the square root:
[tex]\begin{gathered} x+\frac{5}{2}=+\frac{1}{2}\rightarrow x=\frac{1}{2}-\frac{5}{2}=-\frac{4}{2}=-2, \\ x+\frac{5}{2}=-\frac{1}{2}\rightarrow x=-\frac{1}{2}-\frac{5}{2}=-\frac{6}{2}=-3. \end{gathered}[/tex]Mrs. M purchased milk for $3.50 per gallon. Which represents the number of gallons of milk, g, Mrs M can purchase if she plans to spend $10.50 on milk.all of the > and < have a line beneath them a. g>0 and g<3b. g>0 and g<14c. g> 0 and g< 7d. g>0 and 8<2
Let x be the number of gallons Mrs M can purchase;
Given information:
Price per gallon: $3.50
Mrs M. Total budget: $10.50
[tex]\begin{gathered} 3.50x\text{ }≤\text{ }10.50 \\ \end{gathered}[/tex]Solving for the number of gallons Mrs M can purchase:
[tex]\begin{gathered} x\leq\frac{10.50}{3.50} \\ \\ x\text{ }\operatorname{\leq}\text{ }3 \end{gathered}[/tex]ANSWER
a. g>0 and g<3