The functions r and s are defined as follows.
r(x) =- 2x+2
s(x)=x²-2
Find the value of r(s (-2)).
r(s(-2)) = 1
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Answers

Answer 1

Answer:

r(s(-2)) = -2

Step-by-step explanation:

We are given these following functions:

[tex]r(x) = -2x + 2[/tex]

[tex]s(x) = x^2 - 2[/tex]

Find the value of r(s (-2)).

First we find the composition of r and s functions. It is:

[tex]r(s(x)) = r(x^2-2) = -2(x^2-2) + 2 = -2x^2 + 6[/tex]

At x = -2

[tex]r(s(-2)) = -2(-2)^2 + 6 = -8 + 6 = -2[/tex]

r(s(-2)) = -2


Related Questions

Some researchers have conjectured that stem-pitting disease in peach-tree seedlings might be controlled with weed and soil treatment. An experiment is conducted to compare peach-tree seedling growth when the soil and weeds are treated with one of two herbicides. In a field containing 20 seedlings, 10 are randomly selected throughout the field and assigned to receive herbicide A. The remainder of the seedlings is assigned to receive herbicide B. Soil and weeds for each seedling are treated with the appropriate herbicide, and at the end of the study period, the height in centimeters is recorded for each seedling. The following results are obtained: Herbicide A = 94.5 cm s1 = 10 cm Herbicide B = 109.1 cm s2 = 9 cmWhat is a 90% confidence interval (use the conservative value for the degrees of freedom) for μ2 – μ1?
a. 14.6 ± 7.00
b. 14.6 ± 7.38
c. 14.6 ± 7.80
d. 14.6 ± 9.62

Answers

Answer:

A. 14.6 ± 7.00

Step-by-step explanation:

Formula for the confidence interval between the two mean is;

CI = (μ2 - μ1) ± z√[((s1)²/n1) + ((s2)²/n2)]

We are given;

μ1 = 94.5

μ2 = 109.1

s1 = 10

s2 = 9

n1 = 10

n2 = 10

The z-value at confidence interval of 90% is 1.645

Thus;

CI = (109.1 - 94.5) ± 1.645√[(10²/10) + (9²/10)]

CI = 14.6 ± 7.00

What are terms in a polynomial separated by ?

Answers

Answer:

Terms are separated by addition signs and subtraction signs, but never by multiplication sign

Step-by-step explanation:

A polynomial with one term is called a monomial. A polynomial with two terms is called a binomial. A polynomial with three terms is called a trinomial.

Simplify 4/24 to lowest terms.

Answers

1/6

Step-by-step explanation:

4/24=(4/4)/(24/4)

=1/6

5B. Using the balanced seesaw shown, find the ratio of lengths a/b in lowest terms.

Answers

Answer:

Lowest terms is 7:6

Step-by-step explanation:

A = 63

B = 54

Ratio is a:b = 63:54

63:54

Reduce 63 to lowest terms to get 7 by dividing 9.

63 ÷ 9 = 7

Reduce 54 to lowest terms to get 6 by dividing 9.

54 ÷ 9 = 6

So the reduced form 63:54 in ratio is 7:6.

7:6

I hope this helped!

Answer:

6:7

Step-by-step explanation:

weight * distance = weight * distance,

so 63 * d1 = 54 * d2

LCM(63,54) = 378

378÷63 = 6

378÷54 = 7

so the answer is 6:7

The diameter of a peacan pie is 7 inches. What is the circumference?

Answers

Answer:

21.98/C

Step-by-step explanation:

The equation for circumference is pi(d).

so 3.14*7 is about 21.98

need help with this one

Answers

Answer:

Step-by-step explanation:

B + 87 +78 +66 = 360

B = 129 °

the angle next to B then is

180 = 129 + b '

51 °  = b '

A  + 61 + b ' = 180

A = 68 °

f(x)
A
6
X
-8
6
8
Which of the given functions could this graph represent?
OA. f(t) = (x - 1)(x - 2)(x + 1)(x + 2)
O B. f(x) = x(x - 1)(1 + 1)
Oc. /(x) = x(x - 1)(x - 2)(x + 1)(x + 2)
OD. (r) = x(x - 1)(x - 2)

Answers

The answer to this question It’s Oc
Answer:
Is C on edge.

4-3x>16

I don’t know

Answers

Answer:

x < -4

Step-by-step explanation:

4 > 16 + 3x

3x < 4-16

3x < -12

x < -12/3

x < -4

Feel free to mark it as brainliest

5x - y = 6

x + 6y = 4

To solve the system by elimination, what integer would you multiply the FIRST equation by?

Answers

Answer:

Multiply the first equation by 6.

Los cajones MYS, pesan juntos Kkilogramos si razón entre los pesos de MYS es 3:4,entonces S Y K=

HELP PLEASE!!!! LOOK AT THE PIC!!!

Triangle A'B'C' is the image of Triangle ABC under a dilation.


What is the scale factor of the dilation?​

Answers

Answer:

3

Step-by-step explanation:

i took the quiz lol

Answer:

3

Step-by-step explanation:

3x3 grid using 24cm wire. How much wire for 20x20 grid?

Answers

Answer:

840cm

Let Me Know If This Is Correct I Always Want To Improve!

Thanks :)

PLS HELP AND HURRY

After how many hours is the price the same in both companies? Explain how you found the answer.

Answers

Step-by-step explanation: 5

Answer:

Step-by-step explanation:

Raging River costs

y=9x

Paddlers costs

y=x+40

So they cost the same when y=y

9x=x+40

8x=40

x=5

So they cost the same for 5 hours.

David can type a 50-page paper in 8 hours. Last month, David and Andy together typed a
50-page paper in 6 hours. How long would Andy take to type a 50-page paper by himself?

Answers

Answer:

12.5pages

Step-by-step explanation:

50pages ×6hours=300 and then we divide by 8 to get 37.5(the number of pages printed by david in 6 hours)

subtract 37.5 from 50 to find the number of pages printed by andy

A mouse is moving through a maze and must make four turns where it can go either left or
right. The mouse will escape the maze if it makes three lefts and one right, in any order.
(a) To the right, draw a tree diagram
of all possible routes the mouse
could take.
(b) Using your tree diagram, create
an organized list of the routes. For
example, a route of right, left, left,
right could be listed as RLLR.
(C) What is the probability the mouse
escapes the maze if all turns are
randomly made?

Answers

How are we supposed to answer this?

Plz I need help ASAP!!

Answers

Answer:

Stan initially had $60.

Explanation

[tex]1/3 + 1/5 = 8/15[/tex]

[tex]8/15 = 0.5333[/tex]

[tex]32/60 = 0.5333[/tex]   ( Since 60 is the denominator it is also the total amount).

Find the average of the following numbers. -100 and 102.

Answers

The average is the sum of the numbers divided by the quantity of numbers.

-100 + 102 =2

2/2 = 1

The average is 1

Answer:

1

Step-by-step explanation:

To find average, add up all of the numbers and divide it by how many numbers there are.

[tex]\frac{-100+102}{2} = \frac{2}{2} =1[/tex]

Zak buys 6 gallons of fruit punch. He has
coupons for $0.55 off the regular price of
each gallon of fruit punch. After using the
coupons, the total cost of the fruit punch is
$8.70. Determine the regular price of a
gallon of fruit punch.​

Answers

$8.70 is the total cost without the coupons. He gets 6 gallons. He gets $0.55 off per gallon.

To find the total price Zak got off, multiply 6 and $0.55. 6 x $0.55 = $3.30, so he got $3.30 off.

To find the total price. Add the total cost without the coupons + the amount the coupons saved him.
$8.70 + $3.30 = $12

To find the price per one gallon, divide the total price / number of gallons

$12/6 = $2. The regular price is $2 a gallon

Fill the blanks using Product formula. ​

Answers

Answer: (-4s-1)*(-8) + (-4)*(-8s+7)

You have the right idea, but you swapped the items in the wrong order. Meaning that you applied the derivative to the wrong pieces as shown in the order above. It seems you have to follow this specific order for the computer to accept the answer.

1O POINTS PLS ANSWER ASAP THANKS

Answers

Answer:

Step-by-step explanation:

The angle measuring 152 is split up, per se, into 2 angles. One of them is a 90 degree angle, as demonstrated by the little square that is above the 152. That 90 degree angle is on a straight line with the 28 degree angle and the angle measured as x. A straight line has a measure of 180. Therefore, 180 - 28 - 90 = x, so x = 62

Sarah has 30 pencils. She wants to give her 5 friends the same amount of pencils. How many pencils does Sarah give each friend? (Write an equation and then solve.)

Answers

Answer:

6 pencils

Step-by-step explanation:

30/5=6

Equation:

30/5=6 pencils each

Recall the Akaike information Criterion (AIC) as well as the related Bayesian Information Criterion (BIC) from our study of Variable Selection and Model Building. Without heavy mathematical notation, explain how both the AIC and BIC emphasize goodness-of-fit of a regression model while also controlling model complexity. Why would we wish to do this (that is, to promote goodness-of-it while at the same time controlling model complexity)

Answers

Step-by-step explanation:

To check out how efficient or accurate a model is, we use the akaike information criterion or the Bayesian. If the AIC or BIC are lower, then this model would be better. They are also used to control for model complexity

Akaike information criterion = 2k-2ln where k is the number of parameter. A higher k gives a higher AIC.

In the real world complex models are discouraged and avoided since

1. They cause data to be over fitted and can capture noise and information from this data.

2. They are complex and therefore difficult to interpret

3. They consume a lot of time and computing them has several inefficiencies.

Using these two as measure of performance, we can select optimal choice of independent variable.

With forward/backward regression, we are able to put new variables in the model or remove from it. The best is the one with lowest AIC.

Write an expression equivalent to b+b+b+b+bt

Answers

4b + bt =

Hope that helps!

what is the answer to the question and how do you answer this?

Answers

Answer:

∠FDN ≅ ∠HKJ

Step-by-step explanation:

G and H are parallel lines and J is the transversal.

∠FDN is corresponding angle with ∠HKJ.

The corresponding angles postulate states that, when two parallel lines are cut by a transversal, the resulting corresponding angles are congruent.

∠FDN ≅ ∠HKJ

How do you write "Hello World" in an alert box?

Answers

i can't type it in here, so i wrote in a paper for you

Find the equation of the line that is parallel to the line x + 5y = 10 and passes through the point (1,3).
A)
y = -x +
16
5
B)
y = -5x - 5
16
y = 5x + 10
D)
y=-x-2

Answers

Y-3=mctb should be bright

Solve the equation in two different ways. Choose one method of solving in detail 5x+7(x+1) = 5x - 21

Answers

Answer:

METHOD 1:

5x+7(x+1)=5x-21

5x+7x+7=5x-21

12x+7=5x-21

12x-5x=-21-7

7x=-28

x=28/7

x=4

METHOD 2:

5x+7(x+1)=5x-21

5x+7(x+1)=5x-21-5x

7(x+1)=-21

7x+7=-21

7x=-28

x=4

Step-by-step explanation:

METHOD 1:

5x+7(x+1)=5x-21

5x+7x+7=5x-21

12x+7=5x-21

12x-5x=-21-7

7x=-28

x=28/7

x=4

METHOD 2:

5x+7(x+1)=5x-21

5x+7(x+1)=5x-21-5x

7(x+1)=-21

7x+7=-21

7x=-28

x=4

please help me i really need help please

Answers

Answer:

7: 100

8: 40

9: 74

Step-by-step explanation:

Answer:

7. x= 100 8. x= 40 and 9. x= 74

Step-by-step explanation:

x + 45 +35=180(sum of angle of triangle )

or, x+ 80=180

or, x=180-80

or, x=100

same process as above for all

5.) Find the product of:
39.06 x 0.3

Answers

Answer:

11.718

Step-by-step explanation:

Answer given above. Pls check

Answer:

11.718

Step-by-step explanation:

I don't know, figure it out yourself.

what is the absolute value of -5+9

Answers

The answer is 4
This is because |-5+9|=|-4| which equals 4

Pls Hurry its timed

How do the number line graphs of the solutions sets of Negative 23 greater-than x and x greater-than-or-equal-to negative 23 differ?

A One graph uses an open circle, but the other graph uses a closed circle. Also, the rays use arrows that point in opposite directions, but they have the same endpoint.

B They use arrows that point in opposite directions, the rays have different endpoints, and both graphs use open circles.

C One graph uses an open circle, but the other graph uses a closed circle. Also, the rays have different endpoints, but they use arrows that point in the same direction.

D They use arrows that point in opposite directions, the rays have different endpoints, and both graphs use closed circles.

Answers

I’m pretty sure it’s A
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