The correct answer is option B which is u = ( x³ + 1).
What is a quadratic equation?The polynomial having a degree of two or the maximum power of the variable in a polynomial will be 2 is defined as the quadratic equation and it will cut two intercepts on the graph at the x-axis.
Given expression is as follows:-
16(x³ + 1)² − 22(x³ + 1) − 3 = 0
Put u = ( x³ + 1) the equation will become:-
16u² -22u-3 = 0
Now the above equation has become a quadratic equation.
Therefore the correct answer is option B which is u = ( x³ + 1).
To know more about quadratic equations follow
https://brainly.com/question/1214333
#SPJ1
the perimeter of a rectangular field is 302 yards. if the length of the field is 92 yards what is its width
Answer:
the width is 59
Step-by-step explanation:
302/2-92=59
A recipe calls for (1 3/8) cups of sugar to make 2 dozens cupcakes. How much sugar is needed to make 60 cupcakes?
Answer:
55/16 cups or 3.4375 cups
Step-by-step explanation:
there are 5 dozens (12) in 60, so there are 2.5 2 dozens in 60, so you would multiply 1 3/8 by 2.5 to find how many cups are needed in 60 cupcakes because 1 3/8 cups is for 2 dozen cupcakes
Bulls can develop respiratory issues as they get older. This may compromise their ability to breath properly which affects their energy level and overall health. A researcher wishes to conduct a study to find which of two injection therapies, Therapy A or Therapy B, is more effective in improving respiratory health. A total of 180 bulls that are at least 12 years old will be randomly selected from ranches in the state of Texas. The researcher will get consent from all owners, treat the bulls for eight months and evaluate changes in respiratory health.
Part A: How would the study benefit from adding a control group? (2 points)
Part B: What is the best way to randomly place the bulls into the Therapy A, Therapy B, and control groups? (4 points)
Part C: The researcher wants to use a blocking variable to place the bulls into groups instead of doing it randomly. He decides to block either by breed or ranch. Explain which would be the best blocking method. (4 points)
The study benefit from adding a control group as it would help in the correlation
What is a control group?A control group is s used to establish a cause-and-effect relationship by isolating the effect of an independent variable.
The best way to randomly place the bulls into the Therapy A, Therapy B, and control groups is random testing. The best blocking method will be breeding.
Learn more about control group on:
https://brainly.com/question/24708013
#SPJ1
Which statement best describes Inflation?
О А. Inflation decreases the amount of goods and services that can be purchased with a dollar.
Inflation Increases the amount of goods and services that can be purchased with a dollar.
Inflation increases the purchasing power of a dollar.
O C.
OD.
Inflation decreases the prices of goods and services.
O E. Inflation doesn't affect the prices of goods and services but increases wages.
Answer:
A
Step-by-step explanation:
Inflation decreases the amount of goods and services that can be purchased with a dollar.
Worth 30 points! Select the correct answer.
What is the value of x in the triangle? (file is attached below)
Answer:
A
Step-by-step explanation:
tan60=opp/adj
tan60=15/x
15tan60=x
25.98=x (when you calculate 15 root 3 it is the same number)
Match each graph with the function it represents.
A function assigns the values. The graph of the function f(x) and g(x) can be plotted as shown in the below image.
What is a Function?A function assigns the value of each element of one set to the other specific element of another set.
The graph of the function f(x) and g(x) can be plotted as shown in the below image.
Learn more about Function:
https://brainly.com/question/5245372
#SPJ1
Hi there !
What is a Pythagoras theorem ?
Nonsense = Reported
Thank you
Answer:
Hi! I think you are referring to the Pythagorean Theorem.
Essentially, given a right triangle, the sum of the squares of the shorter sides equals the square of the longer (slant) side or hypotenuse.
The formula is a squared + b squared = c squared
If the triangle has side lengths 3 and 4 (for the shorter sides), the longer side can be solved like this:
3 squared + 4 squared = x squared
(Let x = the longer side)
3 squared = 9
4 squared = 16
9+16 = x squared
25 = x squared
x = 5
So there you go, that's the Pythagorean theorem.
Let me know if this helped!
Answer:
a theorem attributed to Pythagoras that the square on the hypotenuse of a right-angled triangle is equal in area to the sum of the squares on the other two sides.
Step-by-step explanation:
Two mechanics worked on a car. The first mechanic charged $95 per hour, and the second mechanic charged $110 per hour. The mechanics worked for a combined total of 35 hours, and together they charged a total of $3550. How long did each mechanic work?
Firstmechanic:hours
Secondmechanic:hours
Answer:
1st mechanic:20hours
2ndmechanic:15hours
Step-by-step explanation:
1stmechanic:20hours=20x95
=$1900
2nd mechanic:15hours=15x110
=$1650
total=$1900+$1650
=$3550
SHOW ALL WORK PLEASE!!!!!!!
The rat population in a major metropolitan city is given by the formula n(t)=89e^0.02t where t is measured in years since 1992 and n(t) is measured in millions
What was the rat population in 1992?
What does the model predict the rat population was in the year 2003?
Answer:
See below ~
Step-by-step explanation:
What was the rat population in 1992?⇒ t represents the years after 1992
⇒ So, in 1992, t = 0
⇒ Apply in the formula
⇒ n(0) = 89e^(0.02 × 0)
⇒ n(0) = 89e⁰
⇒ n(0) = 89,000,000
The rat population in 1992 was 89,000,000.
===========================================================
What does the model predict the rat population was in the year 2003?⇒ Number of years after 1992 : 2003 - 1992 = 11
⇒ Substitute for t in the formula
⇒ n(11) = 89e^(0.02 × 11)
⇒ n(11) = 89e^(0.22)
⇒ n(11) = 89 × 1.24607673
⇒ n(11) = 110,900,829 rats
The model predicts that in the year 2003 there will be a rat population of 110,900,829 rats.
Answer:
(a) 89,000,000 rats
(b) 110,900,829 rats
Explanation:
Given equation:
n(t)=89e^0.02tTo find the initial population (1992):
insert t = 0
n(0) = 89e^0.02(0) = 89 million ≈ 89,000,000To find the rat population in 2003 (after 11 years):
insert t = 11
n(11) = 89e^0.02(11) = 89e^0.22 ≈ 110,900,829(2x-2) (x+5) what does x =
Answer:
a
x
2
+
b
x
+
c
=
0
the two roots of the equation take the form
x
1
,
2
=
−
b
±
√
b
2
−
4
a
c
2
a
So, start by adding
−
5
to both sides of the equation to get
2
x
2
+
x
−
5
=
5
−
5
2
x
2
+
x
−
5
=
0
Notice that you have
a
=
2
,
b
=
1
, and
c
=
−
5
. This means that the two solutions will be
x
1
,
2
=
−
1
±
√
1
2
−
4
⋅
2
⋅
(
−
5
)
2
⋅
2
x
1
,
2
=
−
1
±
√
41
4
You can simplify this if you want to get
x
1
=
−
1
+
√
41
4
≅
1.35078
and
x
2
=
−
1
−
√
41
4
≅
−
1.85078
Answer:
(2x-2)=
+2 =+2
(2x)=2
----------
2
x= 1
-----------------------------------------------
(x+5)=
-5=-5
x= -5
Step-by-step explanation:
You just need to separate the variable from the numbers
Triangle ABC = Triangle ADF, AD = 18, BC = 17, DF= [?]
The value of the length DF is 17
How to determine the length DF?The statement Triangle ABC = Triangle ADF means that the triangles ABC and ADF are congruent triangles.
So, we have:
AB = AD
AC = A F
BC = DF
Given that BC = 17;
The equation BC = DF becomes
17 = DF
Rewrite as:
DF = 17
Hence, the value of the length DF is 17
Read more about congruent triangles at:
https://brainly.com/question/1675117
#SPJ1
If one student is chosen at random, Find the probability that the student was NOT a female that got a "C"
--------- A // B // C // Total
Male: 10 // 8 // 15 // 33
Female: 7 // 9 // 17 // 33
Total: 17 // 17 // 32 //66
The probability that the student was NOT a female that got a "C" is 15 / 32.
What is the probability?
Probability determines the chances that an event would happen. The probability the event occurs is 1 and the probability that the event does not occur is 0.
The probability that the student was NOT a female that got a "C" = number of males that got a C / total number of people that got a C = 15 / 32.
To learn more about probability, please check: https://brainly.com/question/13234031
#SPJ1
simplify (4x^3)^2 (3x^5)
Answer:
16x^6(3x^5)
48x^11
A continuous random variable X has cdf F(x)=x² b (a) Determine the constants a and b. for a < 0, for 0 < x < 1, for x > 1.
Any proper CDF [tex]F(x)[/tex] has the properties
• [tex]\displaystyle \lim_{x\to-\infty} F(x) = 0[/tex]
• [tex]\displaystyle \lim_{x\to+\infty} F(x) = 1[/tex]
so we have to have a = 0 and b = 1.
This follows from the definitions of PDFs and CDFs. The PDF must satisfy
[tex]\displaystyle \int_{-\infty}^\infty f(x) \, dx = 1[/tex]
and so
[tex]\displaystyle \lim_{x\to-\infty} F(x) = \int_{-\infty}^{-\infty} f(t) \, dt = 0 \implies a = 0[/tex]
[tex]\displaystyle \lim_{x\to+\infty} F(x) = \int_{-\infty}^\infty f(t) \, dt = 1 \implies b = 1[/tex]
HELP!!!!!! 100 POINTS!!!!!!
Kyle and Lauren teach swimming lessons during the summer. Kyle has 8 classes with g students in each class and 6 classes with h students in each class. Lauren has 5 classes with g students in each class and 10 classes with h students in each class.
If Kyle has a total of 62 students and Lauren has a total of 70 students, which equation shows the solution to the system of equations that represents this situation?
The equation which shows the situation are 8g + 6h = 62 and 5g + 10h = 70.
What is an expression?
Expression in maths is defined as the collection of the numbers variables and functions by using signs like addition, subtraction, multiplication and division.
Given that:-
Kyle and Lauren teach swimming lessons during the summer. Kyle has 8 classes with g students in each class and 6 classes with h students in each class. Lauren has 5 classes with g students in each class and 10 classes with h students in each class.If Kyle has a total of 62 students and Lauren has a total of 70 students,The equation made by the given situation is:-
For kyle, there are g students attending 8 classes sp total number of students will be 8g similarly for h students there are 6 classes so the total number of h students will be 6h. The total number of students for both g and h students attending kyle's class is 62. So the equation will be given as:-
8g + 6h = 62
Now for Lauren, there are g students attending 5 classes so the total number of students will be 5g similarly for h students there are 10 classes so the total number of h students will be 10h. The total number of students for both g and h students attending Lauren's class is 70. So the equation will be given as:-
5g + 10h = 70
Therefore the equation which shows the situation are 8g + 6h = 62 and 5g + 10h = 70.
To know more about expression follow
https://brainly.com/question/723406
#SPJ1
HELP PLS! A kiddie pool is 9 feet long and 6 feet wide. Surrounding wach side of the kiddie pool is a cement walkway of uniform width. The combined area of the pool and walk way is 108 ft^2. Find the width of the walkway
Answer:
wait I will edit and answer it in a few minutes
PLEASE HELP!!!!!!!!!!!!!!!!!!! I'll NAME BRAINLIEST!!!!!!!!!!!!!!!!!A moving-van rental company uses the polynomial 110 + 0.65(m – 200) to calculate the rental charges if a customer drives a van more than 200 miles in one day. In the polynomial, m is the total number of miles that the customer drove the van during the day. Use the Distributive Property to write an equivalent expression for the total cost of renting the van and driving it more than 200 miles in one day.
Answer:I think it would be 84 + 0.45m + 108.
Which simplified could be 0.45m + 192.
hope this helps!
Step-by-step explanation:
I need help I don’t understand please help
How do u solve the pythagorean theorem to find out if they right trangles
To solve the theorem, we will take the square of the longest side of a right triangle and equate to the sum of the squares of the other two sides
What is Pythagoras theoremPythagoras theorem states that the square of the longest side of a right triangle is equal to the sum of the squares of the other two sides
For instance, let;
c be the longest sidea and b be the other two sidesAccording to the theorem above, mathematically;
c² = a² + b²
Learn more on pythagoras theorem here: https://brainly.com/question/343682
#SPJ1
Given: ABCD is a parallelogram.
Prove: ∠A ≅ ∠C and ∠B ≅ ∠D
Parallelogram A B C D is shown.
By the definition of a ▱, AD∥BC and AB∥DC.
Using, AD as a transversal, ∠A and ∠
are same-side interior angles, so they are
. Using side
as a transversal, ∠B and ∠C are same-side interior angles, so they are supplementary. Using AB as a transversal, ∠A and ∠B are same-side interior angles, so they are supplementary.
Therefore, ∠A is congruent to ∠C because they are supplements of the same angle. Similarly, ∠B is congruent to ∠
.
A parallelogram is a quadrilateral with four sides and the opposite sides of the parallelogram are equal and parallel.
How to show the proof?In the given figure, AB||DC. AD is the transversal, such that:
∠A + ∠D = 180-degrees.
The parallelogram is a quadrilateral with equal such that the interior angles present on the same side of the transversal are supplementary. The sum of supplementary angles is equal to 180-degrees.
From the theorem of same-side interior angles, the supplementary angles present on the parallel lines must be intersected by a transversal.
From the property of transversal, the interior angles on the same side of the transversal are supplementary. Therefore, ∠A and ∠D are supplementary and their sum is equivalent to 180-degrees.
Learn more about parallelogram on:
brainly.com/question/15584566
#SPJ1
A 8 gram sample of a substance that's a by-product of fireworks has a k-value of 0.101.
Find the substance's half-life, in days. Round your answer to the nearest tenth.
A 8 gram sample of a substance that's a by-product of fireworks has a k-value of 0.101. The half-life is 2.98 days.
What is the formula for half-life?Exponential decay obeys the equation
[tex]m(t) = m_0 e^{-kt}[/tex]
where t = time, days
Given:
Initial mass, m₀ = 8 g
Decay constant, k = 0.101
For half-life, the mass is m = m₀/2.
Therefore,
[tex]m(t) = m_0 e^{-kt}[/tex]
e^{-0.101t} = 1/2
-0.101t = ln 0.5
t = ln 0.5/-0.101
t = 2.98
Therefore, The half-life is 2.98 days.
Learn more about half-life;
https://brainly.com/question/4472091
#SPJ1
I want to buy a car for $17,500 and I make 13 an hour roughly how long would it take me to reach my goal? & how many hours would i have to work ?
Answer:
1347 hours
Step-by-step explanation:
Assuming the income is net income (total after taxes etc.):
Cost of car = $17,500Net income = $13 per hourTo calculate the number of hours to be worked to save enough to buy the car, divide the cost of the car by hourly net income:
[tex]\begin{aligned}\implies \textsf{Number of hours to work} & = \dfrac{\textsf{Cost of car}}{\textsf{hourly net income}}\\\\& = \sf \dfrac{17500}{13}\\\\& = \sf 1346.1538...\end{aligned}[/tex]
We have to round the number up to 1347 hours, as only $17,498 will be saved if 1346 hours are worked.
The average working week is approximately 40 hours, therefore to calculate how many weeks it would take to earn enough money to purchase the car, divide the number of hours by 40:
⇒ 1347 ÷ 40 = 33.675
So it would take 34 weeks, working an average of 40 hours a week and not spending any of the money earned, to save enough to purchase the car.
Total hours
Cost/Earnings17500/131346.15Round to the next whole instead of nearest whole to avoid depicit
1347 hours you have to work atleastIn most of the countries the average working hours per week is
45 hoursTotal weeks
1347/4529.930weeks you have to work if you don't spend any money of itIf F(x) = x-3, which of the following is the inverse of F(x)?
O A. F1(x) = x+ 3
B. F¹(x) = 3x
OC. F¹(x) = x-3
OD. F¹(x) = 3-x
Answer:
3-x is the inverse of f(x)=x-3
EASY POINTS LM is the midsegment of & ABC. If IM is 8 centimeters long, how long is AC
I think it's 12 because here it comes out
Help please i need it
Answer:
4 pints
Step-by-step explanation:
1(2 1/2) + 2(4) + 1(5 1/2) =5/2 + 8 + 11/2 =16/2 + 88 + 816/28/24Therefore each can would contain 8/2 = 4 pints
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Please feel free to comment, ask questions, give feedback, or correct me if I am wrong!
Have a great day!
:)
A company orders 24 boxed lunches from a deli for $177.60. If each boxed lunch
costs the same amount, what is the unit cost of each boxed lunch?
Answer: $7.40
Step-by-step explanation:
You can use $177.60 divide by 24 boxed lunches equals $7.40
Since you have to distribute 177.60 in 24 boxes.
Question 6 of 10 In order to solve the following system of equations by addition, which of the following could you do before adding the equations so that one variable will be eliminated when you add them? 2x - 4y = 5 6x - 3y=10 A. Multiply the top equation by -2. B. Multiply the top equation by -3 and the bottom equation by 2. C. Multiply the top equation by 3 and the bottom equation by 4. D. Multiply the top equation by -3. SUBMIT
???
Multiply the top equation by -3 and then adding both the equations one variable will be eliminated. So the correct answer is option D.
What is an equation?
It is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.
We are having two equations:-
2x - 4y = 5
6x - 3y=10
When we multiply the first equation by -3 the equation will become as follows:-
-6x + 12y = - 15
6x - 3y = 10
By adding both the equations one variable will be eliminated:-
9y = - 5
Therefore Multiply the top equation by -3 and then add both the equations one variable will be eliminated. So the correct answer is option D.
To know more about equations follow
https://brainly.com/question/2972832
#SPJ1
Solve for x
(2^2/x) (2^4/x) = 2^12
[tex] \textsf{\qquad\qquad\huge\underline{{\sf Answer}}} [/tex]
Let's solve ~
[tex]\qquad \sf \dashrightarrow \:(2 {}^{ \frac{2}{x} } ) \sdot(2 {}^{ \frac{4}{x} } ) = 2 {}^{12} [/tex]
[tex]\qquad \sf \dashrightarrow \:(2 {}^{ \frac{2}{x} + \frac{4}{x} } ) = 2 {}^{12} [/tex]
[tex]\qquad \sf \dashrightarrow \:(2 {}^{ \frac{6}{x} } ) = 2 {}^{12} [/tex]
Now, since the base on both sides are equal, therefore their exponents are equal as well ~
[tex]\qquad \sf \dashrightarrow \: \dfrac{6}{x} = 12[/tex]
[tex]\qquad \sf \dashrightarrow \:x = \dfrac{6}{12} [/tex]
[tex]\qquad \sf \dashrightarrow \:x = \dfrac{1}{2} [/tex]
or
[tex]\qquad \sf \dashrightarrow \:x = 0.5[/tex]
Hope you got the required Answer ~
7,000 dollars is placed in a savings account with an annual interest rate of 3%. If no money is added or removed from the account, which equation represents how much will be in the account after 7 years?
Answer:
See below
Step-by-step explanation:
Interest 3% in decimal form is .03
interest in ONE year 7000 * .03
interest in SEVEN years 7000 * .07 * 7
this is added to the original deposit of 7000
to become 7000 + 7000 * .03 * 7
or 7000 ( 1 + .03*7 )
or 7000 ( 1.21 ) = $ 8470
IF the interest is compounded
the money in the account will be 7000 ( 1+.03)^7
What are the zeros of the quadratic function f(x)=8^2-16-15
Answer:
C)
Step-by-step explanation:
f(x)=[tex]8x^{2} -16x-15[/tex]
[tex]8x^{2} -16x-15=0[/tex]
[tex]x=\frac{-b+-\sqrt{b^{2}-4ac } }{2a}[/tex] , a=8, b= - 16, c= - 15
[tex]x=\frac{-(-16)+-\sqrt{(-16)^2-4*8*(-15)} }{2*8} = \frac{16+-\sqrt{736} }{16} =\frac{16+-4\sqrt{46} }{16} = 1 +- \frac{\sqrt{46} }{4} = 1+- \frac{\sqrt{23} \sqrt{2}}{2\sqrt{2} \sqrt{2} } =1+-\frac{\sqrt{23} }{2\sqrt{2} } = 1+-\frac{\sqrt{23} }{\sqrt{8} }[/tex]