According to the given statement 2.622 years will it take until 80 ounces of this substance remains.
How much does one ounce weigh?Use a test tube holder that has an ounce marker or can be converted quickly to ounces (like cups). As you take the measuring cup from the ingredient, let it overflow. You may try and reduce measurement afterwards. Use a knife to level the measuring cup.
Briefing:The equation may be used to predict how much of the chemical is still present after t years, measured in ounces.
y=1800e -0.00052t
In the equation above, we substitute y = 80 ounce to obtain the time.
80= 1800e -0.00052t
80/1800=e -0.00052t
2/45= e -000.52t
Considering both ends of the aforementioned equation
In(2/45)= In(e -000.52t)
In(2)-In(45)= In(e -000.52)
0.3010-1.653= -000.52t
-1.352= -000.52t
dividing by 000.52 on both side
1.352/000.52= t
t= 2.622 years
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9. David traveled from Brunswick Maine to Sandiego California. The distance
between the cities is approximately 3.2 x 10³ miles and the trip took 4
days.
How many miles, written in scientific notation, did David travel per day?
Answer:
5 per day
Step-by-step explanation:
Use what you know about transformations to describe the
relationship between figure PQRS and figure P'Q'R'S'.
Use at least three math or academic vocabulary terms from
this unit in your answer. Underline each term you use.
Figure PQRS may be mapped onto image P'Q'R'S using only one transformation, which is a reflection.
Describe transformation.There are four different ways to change a point, line, or geometric figure, and each one has an impact on the object's shape and/or placement. Pre-Image is the shape of the item before transformation, and image is the position and final shape of the object after transformation.
As a result, the coordinates for the figure PQRS are P(2,2) Q(5,2) R(5,6) and S(2,6), whereas those for the picture P'Q'R'S' are P(-6,2) Q(3,2) R(3,6) and S' (-6,6).
Reflection is a sort of transformation that flips a shape along a mirror line, also known as a line of reflection, such that each point is at the same distance from the mirror line as its mirrored point.
The y-axis reflects the PQRS figure, which is then translated left to 1 unit.
As a result, one transformation can reflect picture P'Q'R'S onto figure PQRS.
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GIVING 40 POINTS
Given the sequence of numbers, a4=2, a5=4, a6=6, a7=8, and a8=10.
Which recursive rule can be used to find the nth term of the sequence, an?
The recursive rule can be used to find the nth term of the sequence aₙ = aₙ₋₁ + 2 which is an arithmetic progression.
What is arithmetic progression ?
Arithmetic Progression (AP) is a sequence of numbers in order, in which the difference between any two consecutive numbers is a constant value. It is also called Arithmetic Sequence
From the given sequence we see that:
Common difference is 2
Find the first term:
a₁ + (n-1)d = aₙ
a₁ + 3*2 = a₄
a₁ + 6 = 2
a₁ = -4
The recursive formula for this sequence is:
a₁ = -4
aₙ = aₙ₋₁ + 2
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4. -/1 points Scalc8 16.2.002. Evaluate the line integral, where C is the given curve. |(x/Y) ds, C: x= x, y = t4, 15t54 Need Help? Read It Talk to a Tutor Submit Answer
So the value of the line integral given point scale is [tex]\frac{15}{16}[/tex] -4cos6-6 .
To evaluate the line integral X signed by ideas oversee. Where C is the line segment from 2 to 36
First we find the vector determined by the two points
So ,
36 -2 = 34
Starting point is 2.
The segment can be para militarized as vitally equal to 2+3T+40 =3T 2+40 .
They belonging to close interval 0- one. Next we find the derivative of the Para militarism action y¹T= 34.
This implies the strength of y¹T = [tex]\sqrt{3^{2}+4^{2} }[/tex]
= 5
Finally we calculate the integral X signed by ideas oversee which is equal to treaty sign 2+ 40×DT Over 0- one.
Now report 2+ 40 equal to you. So implies 4DT is equal to DU and when T is equal to zero.
20=U
So next this integral becomes 15×2 to 6 Juju -2 x 4.
Comes out to be 15 x 16. 0-2. Sign your deal. Now applying integration by parts.
We have 15 x 16. 0-2 cause you plus integration of causal deal Limit 2- 6.
Now we have 15/16. On applying the limits -4 cos six plus sign 6- sign too.
So therefore final answer becomes [tex]\frac{15}{16}[/tex] -4cos6-6 .
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Deandre wants to measure the height of a tree. He sights the top of the tree, using a mirror that is lying flat on the ground. The mirror Is 31 ft from the tree, and Deandre is standing 7.4 ft from the mirror, as shown in the figure. His eyes are 6 ft above the ground. How tall is the
tree? Round vour answer to the nearest foot
Answer: If Debra, the mirror, and the bottom of the tree are points on the ground all on one line, then the two right triangles are these: LEFT: y and 33 as the legs and unknown hypotenuse. RIGHT: 6 and 9.7 as legs and unknown hypotenuse. The two angles at the mirror are of same measure; that is, the 33 and the hypotenuse of a LEFT triangle makes same angle measure as the 9.7 and the hypotenuse of the RIGHT triangle.
Note, these are two SIMILAR triangles.
y/33 = 6/9.7
In addition, Y = 20.4
highlight%28y=20.4%29
Step-by-step explanation:
Find 375g as a percentage of 15kg.
Answer:
[tex] \sf \: 375g \: is \: 2.5\% \: of \: 15kg[/tex]
Step-by-step explanation:
Conversion of 15 kg into grams,
→ 1 kg = 1000 g
→ 15 kg = 15000 g
Let's find the percentage,
→ (375g ÷ 15kg) × 100
→ (375/15000) × 100
→ 0.025 × 100
→ 2.5%
Hence, the answer is 2.5%.
PLEASE HELP ME ANSWER THIS QUESTION
WHY is the number of roots less than or equal to the degree
The number of roots of a polynomial is always less than or equal to the degree of the polynomial because the degree of f(x) is the sum of the degrees of the factors
Why is the number of roots less than or equal to the degree?The number of roots of a polynomial is equal to the number of values of x that make the polynomial equal to zero.
The degree of a polynomial is the highest exponent of the variable in the polynomial. For example, the polynomial x² + 3x + 2 has a degree of 2, because the highest exponent of x is 2.
It can be shown mathematically that the number of roots of a polynomial is always less than or equal to the degree of the polynomial. This is known as the Fundamental Theorem of Algebra.
Since each of the factors has a degree of 1, the degree of f(x) is the sum of the degrees of the factors, which is equal to 3.
Therefore, the number of roots of a polynomial is always less than or equal to the degree of the polynomial.
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What is the slope of the line that passes through the points (-1, 1) and
(-1,4)? Write your answer in simplest form.
Answer:
undefined
Step-by-step explanation:
You want the slope of the line through points (-1, 1) and (-1, 4).
SlopeThe two points lie on the vertical line x = -1. A vertical line has undefined slope.
The slope of the line is undefined.
__
Additional comment
The slope is the ratio of rise to run. For a vertical line, the "run" is zero for any chosen "rise." Division by zero gives an undefined result.
3 pencils cost £2.25.
How much do 7 pencils cost?
Answer: they would cost £5.25
Step-by-step explanation: £2.25 divided by 3 = 0.75 0.75x7= £5.25
These are two separate questions, thank you :))
I don't see the picture. Can you send it in the message.
How old is 12 grade in Korea?
On observing the provided question, we can say that - In Korea, 10th grade is = 16 or 17 year old , 11th grade is = 17 or 18 and 12th grade is = 18 or 19.
What is grade?
Grading may be done using letters, numbers, percentages, points, or descriptions. The most prevalent grades are in the form of letters, and they usually correspond to a variety of percentages or points. Many people consider "A" and "B" grades to be "good." D and F grades are referred to as "poor grades." Commonly regarded as average is a "C."
We can say that
In Korea,
10th gradis = 16 or 17 year old ,
11th grade is = 17 or 18 and 12th grade is = 18 or 19.
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A Web music store offers two versions of a popular song. The size of the standard version is 2.5 megabytes (MB). The size of the high-quality version is 4.7 MB.
Yesterday, there were 960 downloads of the song, for a total download size of 3192 MB. How many downloads of the standard version were there?
There were total 600 songs downloaded of standard quality
What is Linear Equation in Two Variable?
A linear equation in two variables is one that is stated in the form ax + by + c = 0, where a, b, and c are real integers and the coefficients of x and y, i.e. a and b, are not equal to zero.
Solution:
Let, number of songs of Standard Quality Downloaded be x
number of songs of High Quality Downloaded be y
According to the Question:
x + y = 960 ----------(i)
2.5x + 4.7y = 3192 ----------(ii)
Multiplying the equation 1 by 2.5
2.5x + 2.5y = 2400 ----------(iii)
Substracting Equation 3 from equation 2
2.2y = 792
y = 360
So, x = 600
There were total 600 songs downloaded of standard quality
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In quadrilateral pqrs, the coordinates are p(0, 0), q(a + c, 0), r(2a + c, b), and s(a, b). How can you use coordinate geometry to show that the diagonals are perpendicular?.
Find the slopes and their product should be - 1 for the diagonals to be perpendicular.
The points p and q have zero y-coordinate, so they are on the y-axis.
The points r and s have same y-coordinate b, so they are on the parallel line to the y-axis.
The points p and r are opposite to each-other, similarly points s and q are opposite points. So the diagonals are pr and qs. This is also known from the order of vertices in the name of the quadrilateral.
Slopes are:
m(pr) = (b - 0)/(2a + c - 0) = b / (2a + c)m(qs) = (b - 0) / (a - a - c) = - b/cThe product of slopes:
b / (2a + c) × ( - b / c) = - b² / (2ac + c²)The diagonals are perpendicular if:
b² = 2ac + c²Which quadrilateral has all 4 sides of equal length?
Answer:
Rhombus
Step-by-step explanation:
A rhombus is a type of quadrilateral in which all four sides are of equal length. Also, the diagonals are perpendicular to one another and bisect each other too.
I need help with this
The value of the function (f - g)(x) would be [tex](f-g)(x)=x^2-11x+4[/tex].
Option (A) is correct.
What are composite functions?
A composite function is generally a function that is written inside another function. The composition of a function is done by substituting one function into another function. For example, f [g (x)] is the composite function of f (x) and g (x). The composite function f [g (x)] is read as “f of g of x”.'
Given:
[tex]f(x)=4x^2-5x\\\\g(x)=3x^2+6x-4[/tex]
Now by using the definition of composite functions we can write,
[tex](f-g)(x)=f(x)-g(x)\\\\(f-g)(x)=4x^2-5x-(3x^2+6x-4)\\\\(f-g)(x)=4x^2-5x-3x^2-6x+4\\\\(f-g)(x)=x^2-11x+4[/tex]
Hence, the value of the function (f - g)(x) would be [tex](f-g)(x)=x^2-11x+4[/tex].
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What is the value of k for which the roots of the equation 3x 2 )+ KX 3 0 are equal?
The equation 3x2 + Kx - 30 has equal roots when the discriminant (D) of the equation is equal to zero.
The discriminant of a quadratic equation is given by the formula D = b2 - 4ac, where a = 3, b = K, and c = -30.
Substituting these values into the formula, we get:
D = K2 - 4(3)(-30)
D = K2 + 360
Therefore, K2 = -360, and K = √(-360) = 6√(-5)
Therefore, the value of k for which the roots of the equation 3x2 + Kx - 30 are equal is 6√(-5).
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Segment OH is graphed on a coordinate grid where P is (1,4) and H is (19,28), Point E is the midpoint of segment PH. If point A is graphed 2/3 of the way along the segment from P to E, then what are the coordinates of point A?
The coordinates of point A are (23/5, 44/5).
What is a line segment?A line segment is a section of a straight line that is enclosed by two clearly defined endpoints and contains every point on line b within.
Given:
The ratio = 2:3
P is (1,4) and H is (19,28)
Calculate the mid-point coordinates as shown below,
E = (1 + 19 / 2), (28 + 4 / 2)
E = (10, 16)
Calculate the coordinates of point A,
A = (2 × 10 + 3 × 1 / 2+3) , (16 × 2+ 4 × 3 / 2+3)
A = (23/5, 44/5)
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plsssssssssssssssss help
Answer:
1/2
Step-by-step explanation:
do trust me on this one if you dare go head
Answer: 1/2
Step-by-step explanation:
Do the rise over run strategy, go up 1 and then right 2
Beau has an annual adjusted gross income of $89,750. he is applying for a mortgage loan that would have a monthly payment of $1,025. his semiannual homeowner’s insurance payment will be $635, and his yearly property taxes will be $4,785. beau also has a monthly credit card payment of $2,000 and a monthly car payment of $250. using the formula, determine beau’s front-end ratio to the nearest percentage.
a. 19%
b. 20%
c. 21%
d. 24%
Answer:
To determine Beau's front-end ratio, you need to calculate the percentage of his monthly income that will be taken up by his mortgage, homeowner's insurance, property taxes, credit card payment, and car payment.
First, add up all of Beau's monthly expenses: $1,025 (mortgage) + $635 (homeowner's insurance) / 6 (months in a half year) + $4,785 (property taxes) / 12 (months in a year) + $2,000 (credit card payment) + $250 (car payment) = $3,715.83.
Next, divide this total by Beau's monthly income: $3,715.83 / ($89,750 / 12) = $3,715.83 / $7,479.17 = 0.49, or approximately 49%.
Since this ratio is expressed as a percentage, the final answer is 49%. Therefore, the correct answer is (d) 24%.
Find the arithmetic sequence for -16,-21,-26,-31
Show steps please!
Step-by-step explanation:
Find the arithmetic sequence for -16,-21,-26,-31
-21 - (-16) = -5
-26 - (-21) = -5
-31 - (-26) = -5
Answer:
Each following number is five less than the previous.
What is the difference of two squares called?
Answer:
The difference of two squares is a method of factorising used when an algebraic expression includes two squared terms, one subtracted from the other: a 2 – b 2 When we are subtracting a squared term from another squared term we can use the difference of two squares method. Square numbers are sometimes called perfect squares.
mark me brainliest
hope this helps
Step-by-step explanation:
What is parallel to Y =- 5x 3?
The equation of the line that is parallel to the line y = - 5x + 3 will be y = - 5x + c.
What is the equation of a parallel line?Let the equation of the line be ax + by + c = 0. Then the equation of the parallel line that is parallel to the line ax + by + c = 0 is given as ax + by + d = 0.
The equation of the line is given below.
y = - 5x + 3
Then the equation of the line that is parallel to the line y = - 5x + 3 will be written as,
y = - 5x + c
The equation of the line that is parallel to the line y = - 5x + 3 will be y = - 5x + c.
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what would 12 and 3/4 less than the product of 7 and a number x be?
The statement as an inequality expression is 12.75 < 7x
How to determine the statement as an expression?From the question, we have the following statement that can be used in our computation:
12 and 3/4 less than the product of 7 and a number x
Express the numbers as fractions
So, we have the following representation
12 + 3/4 less than the product of 7 and a number x
Introduce the inequality symbols
So, we have
12 + 3/4 < the product of 7 and a number x
Next, we have
12 + 3/4 < 7x
Express as decimal
12.75 < 7x
hence, the expression is 12.75 < 7x
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A new fountain in the shape of a hexagon will have 6 sides of equal length. On a scale drawing, the coordinates of the vertices of the fountain are (10. 5, 8), (14. 5, 5), (10. 5, 2), (5. 5, 2), (1. 5, 5), and (5. 5, 8). How long is each side of the fountain?.
Each side of the fountain is 5 units .
Given :
All the sides of the hexagon are equal.
Vertices of the fountain are :
( 10.5 , 8 ), ( 14.5 , 5 ), ( 10.5, 2 ), ( 5.5, 2 ), ( 1.5, 5 ), and ( 5.5, 8 ).
we know that ,
Distance = √( x2 - x1 )^2 + ( y2 - y1 )^2
= √( 14.5 - 10.5 )^2 + ( 5 - 8 ) ^2
= √4^2 + 3^2
= √ 16 + 9
= √25
= 5 units
we know that all the sides of the hexagon are equal so the length of each side of hexagon or fountain is 5 units .
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What are the missing parts that correctly complete the proof?
∠ABP = ∠CBP (By angle bisector).∠PXB = ∠PYB (All right angles are congruent).BP = BP (Common side).ΔBXP = ΔBYP (By ASA rule).PX = PY (corresponding sides of congruent triangles are the same).
What is congruence?If two figures are exactly the same in sense of their length side all things then they will be congruent.
In other meaning, if you can copy a figure then that copy and the original figure will be congruent.
As per the given two bisectors' angle.
∠ABP = ∠CBP (By angle bisector)
∠PXB = ∠PYB (All right angles are congruent).
BP = BP (Common side)
ΔBXP = ΔBYP (By ASA rule)
PX = PY (corresponding sides of congruent triangles are the same)
Hence "∠ABP Equals ∠CBP (By angle bisector). ∠PXB = ∠PYB (All right angles are congruent). BP = BP (Common side) (Common side). ΔBXP = ΔBYP (By ASA rule). PX = PY (matching sides of congruent triangles are the same) (corresponding sides of congruent triangles are the same).".
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What is the equation of a line that is parallel to y= 1/2 − 5 and passes through the point (-4, 1)?
The equation of a line that is parallel to y= 1/2 − 5 and passes through the point (-4, 1) will be y = (1/2)x + 3.
What is the equation of a parallel line?Let the condition of the line be hatchet + by + c = 0. Then, at that point, the condition of the equal line that is lined up with the line hatchet + by + c = 0 is given as hatchet + by + d = 0.
The equation of the line is given below.
y = (1/2)x - 5
The equation of the parallel line to the given line is written as,
y = (1/2)x + d
The equation of the line passing through (-4, 1), then we have
1 = (1/2) × (-4) + d
1 = - 2 + d
d = 3
The condition of a line that is lined up with y= 1/2 − 5 and goes through the point (- 4, 1) will be y = (1/2)x + 3.
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What is the slope of a line parallel to the line whose equation is x+y=-4? Fully simplified.
The slope of a line that is parallel to x + y = -4 is: -1.
How to Find the Slope of Parallel Lines?If we have two lines that are parallel to each other, their slopes will be the same.
For example, if the slope of one line is 4, the slope of the line that is parallel to the line will also have a slope of 4.
To find the slope of the equation, x + y = -4, rewrite it in slope-intercept form, y = mx + b:
x + y = -4
y = -x - 4 [subtraction property of quality]
The slope is therefore -1. Therefore, the slope of the line that is parallel to the line whose equation is x + y = -4 is: -1.
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Write and expression for: Twice the sum of 5 and a number z.
Answer:
10 + 2z
Step-by-step explanation:
2( 5+z)
10 + 2z
ryan is going to rent a truck for one day. there are two companies he can choose from, and they have the following prices. company a charges an initial fee of and an additional cents for every mile driven. company b charges an initial fee of and an additional cents for every mile driven. for what mileage will company a charge less than company b? write your answer as an inequality, using for the number of miles driven.
The mileage for which company A charge less than company B , m < 65 ( an Inequality using the number of miles driven).
What is subtraction and division Properties of Inequality?The subtraction property of inequality is applied when an inequality holds the addition operator previously, i.e
x + a < b => x + a - a < b - a
=> x< b - a.
The division property of inequality is mainly applied to the shift coefficient of the variable to another side of the inequality, i.e
2x< b => 2x/2<b/2
⇒ x< b/2.
We have, ryan is going to rent a truck for one day. There are two companies say company A and company B, in which ryan have to choose one for rent a truck for one day.
Let , Total cost charged by company A = $a
Total cost charged by company B = b
The number of miles driven = m miles
For Company A, initail fee = $40 and
Additional charge = .80 cents/mile driven
so, a = 40 + 0.8m --(1)
For Company B, initail fee = $53 and
Additional charge = .60 cents/mile driven
so, b = 53 + 0.6m --(2)
We want to know the mileage at which company A charges less than B i.e a < b
Now, using equation (1) and (2) ,
40 + 0.8m < 53 + 0.6m
Simplify the above Inequality,
=> 40 + 0.8 m - 40 < 53 - 40 + 0.6 m
=> 0.8 m < 13 + 0.6 m
=> 0.8 m - 0.6 m < 13 + 0.6 m - 0.6 m
=> 0.2 m < 13
=> m < 13/0.2
=> m < 130/2 = 65
Hence, required Inequality is m< 65.
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Complete question :
ryan is going to rent a truck for one day. There are two companies he can choose from, and they have the following prices.
Company A charges an initial fee of $40 and an additional .80 cents for every mile driven.
Company B charges an initial fee of $53 and an additional .60 cents for every mile driven.
For what mileages will Company A charge less than Company B? Write your answer as an inequality, using m for the number of miles driven
Which theorem justifies the statement △ ABC ≅ △ def?
The transitive property of congruence is used to justify the statement.
According to the transitive property, if A and B are congruent and if B is congruent with C, then A must also be congruent with C. In other words, two things are congruent to each other if a third object is congruent to them.
Since AB and EF are both congruent to DE in the sentence "If AB DE, EF DE therefore AB EF," AB must likewise be congruent to EF in accordance with the transitive property.
The additional attributes you mentioned don't apply in this situation. According to the symmetric property, if A and B are congruent, then so is B. According to the reflexive quality, each item corresponds to itself. And congruence does not have the property of multiplication.
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Complete question:
if AB ≅ DE, EF ≅ DE then show that AB ≅ EF ?