Mathematics High School

The functions u and w are defined as follows.
u(x) = 2x+2
w(x) = – 2x² +2
Find the value of w (u(2)).

Answers

Answer 1

Answer:

w(u(2)) = -70

Step-by-step explanation:

u(x) = 2x + 2

w(x) = -2[tex]x^{2}[/tex] + 2

w ( u (2) )

Find u(2), substitute in 2 for x in the function u.

u(2) = 2(2) + 2

= 4 + 2

= 6

w(u(2))

= w(6)

Now subsitute in 6 for x, in the function w.

w(6) = -2[tex](6)^{2}[/tex] + 2

= -2 * 36 + 2

= -72 + 2

= -70

w(6) = -70

w(u(2)) = -70

Related Questions

What is the solution to 0.3(12x - 16) = 0.4(12 - 3x)?

Answers

Step-by-step explanation:

The solution is one-solution

.3(12x-16)=.4(12-3x) (you do the distributive property)

3.6x-4.8=4.8-.12x (you add 1.2 to both sides)

3.6x-3.6=4.8 (You add 3.6 to both sides)

3.6x=8.4 ( You divide 3.6 both numbers)

x=0.4285...

Its a one-solution

What is the value of x if
4x - 9 = 11?
A. 1/2
B.2
C.5
D.20

Answers

Answer:

C

Step-by-step explanation:

Answer: 4x-9=11

4(5)-9=11

20-9=11

11=11

Step-by-step explanation:

-3 - 2 .....................................................

Answers

Answer:

-5

Step-by-step explanation:

Answer:

-5

Step-by-step explanation:

thats a deep comment

what is the answer to the question?​

Answers

Answer:

ASA

Step-by-step explanation:

I think

Answer:

c

Step-by-step explanation:

both use the same middle side

write the equation. the output of a function is 6 more than 2 times the input.

Answers

Answer:

y = 2x+6

Step-by-step explanation:

Let the output value be y

Let the input value be x

the output of a function is 6 more than 2 times the input

2 times the input is expressed as 2x

6 more than 2 times the input is expressed as 2x + 6

Since the output of a function is 6 more than 2 times the input, we will equate y to the resulting equation to have;

y = 2x + 6

Hence the required equation is y = 2x+6

Which of the following equations have no solutions?

Answers

Answer:

A

Step-by-step explanation:

If the variable quantities are the same, but the constants are different, then that equation has no solutions.

I need help with those 2 the rest I know. I just don’t know what that means.

Answers

Answer:

What are the problems?

Step-by-step explanation:

The problem could also solved using the ___formula?

Answers

Answer:

right,correct can be used here

What is the quotient of: 3/4 divided by 1/2

Answers

Answer: 3/2

Step-by-step explanation:

Answer:

3/2.

Step-by-step explanation:

The area of the triangle is

square inches.
fill in the blanks

Answers

Answer:

8

Step-by-step explanation:

You could make any amount but 8 dos work if the triangle is a 2 by 8

The answer is 8 I am pretty sure

PLS ANSWER! I WILL GIVE BRAINLIST!!!!

Leeza deposited $1,600 in a savings account with a simple interest rate of 4.5%. How much interest will Leeza earn after 6 years if she makes no additional deposits or withdrawals?

Answers

Answer: $432.00

Explanation: use the forumula I = P*r*t
P= principle amount (the amount she starts with), which was 1,600
R= the interest rate, which was 4.5 percent
T= time, which was 6 years

help 20 points btw............

Answers

you would do base times height

If the pre-image (0,-4) is translated by the rule (x−2,y+3) , which quadrant will the image be located

Answers

Answer:

Quadrant IV

Step-by-step explanation:

-4+5y=13
Find solution of the system of equations

Answers

Answer:

I think y=3.4

Step-by-step explanation:

how do u draw a diagram os similar triangles with given sides

Answers

Answer:

come help me on my last question

Step-by-step explanation:

just fill out the explanation on why it's 6?

Answers

Answer: I subtracted 8 from both sides then divided 3 on both sides

Step-by-step explanation: welcome

Answer:

Simplifying

3x + 8 = 26

Reorder the terms:

8 + 3x = 26

Solving

8 + 3x = 26

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-8' to each side of the equation.

8 + -8 + 3x = 26 + -8

Combine like terms: 8 + -8 = 0

0 + 3x = 26 + -8

3x = 26 + -8

Combine like terms: 26 + -8 = 18

3x = 18

Divide each side by '3'.

x = 6

Simplifying

x = 6

When surveyed 5 out of 32 students said they ride their bikes to school. Predict how many students in a school of 800 ride their bikes to school.

And please show your work!

Answers

Answer:

probably about 60 students ride their bikes to school.

Step-by-step explanation:

divide it and estimate. dont hate me if im wrong.

f(x) = -x^2 + 5x – 2
Find f(-4)

Answers

Answer:

2

Step-by-step explanation:

if f(4), than -4^2=-16

5(4)=20

-16+20-2=2

You can multiply -2.2 by 6.2 to find the total variation in water level. What decimal represents the total variation in water level that Ericka observed?

50 points

BRAINLY TO WHO EVER IS FIRST

Answers

Whatever she observed

Please actually answer this it has a good amount of points!

Answers

The answer is D, "No, because two points with the same x-value have different y-values."

Essentially, there cannot be more than one point on the same x-line. Point (2, 11) and point (2, 2) are on the same x-line, which is 2.

Hope this helps!

PLEASE HELP!!!
Segments DE, EF, and DF are midsegments of AABC. Find the length of the indicated
segment.

Answers

Answer:

6

Step-by-step explanation:

You know DF = 6 and EB = 6 too. Since E is the mid-point of AEB, EB and AB are equal.

DF = EB

     = AB

     = 6

What is the value of n in the equation below 9n-24=4n+6

Answers

Answer:

n = 6

Step-by-step explanation:

9n - 24 = 4n + 6              {Subtract 4n from both sides }

9n - 24 -4n = 6

       5n - 24 = 6               {Add 24 to both sides}  

               5n = 6 + 24

               5n = 30

                 n = 30/5

n = 6

Answer:

n=6

Step-by-step explanation:

Simplifying

9n + -24 = 4n + 6

Reorder the terms:

-24 + 9n = 4n + 6

Reorder the terms:

-24 + 9n = 6 + 4n

Solving

-24 + 9n = 6 + 4n

Solving for variable 'n'.

Move all terms containing n to the left, all other terms to the right.

Add '-4n' to each side of the equation.

-24 + 9n + -4n = 6 + 4n + -4n

Combine like terms: 9n + -4n = 5n

-24 + 5n = 6 + 4n + -4n

Combine like terms: 4n + -4n = 0

-24 + 5n = 6 + 0

-24 + 5n = 6

Add '24' to each side of the equation.

-24 + 24 + 5n = 6 + 24

Combine like terms: -24 + 24 = 0

0 + 5n = 6 + 24

5n = 6 + 24

Combine like terms: 6 + 24 = 30

5n = 30

Divide each side by '5'.

n = 6

Simplifying

n = 6

In AFGH, what is tan G?

Answers

Answer:

[tex]\frac{3}{5}[/tex]

Step-by-step explanation:

When finding the tangent of an angle, tangent of that angle is opposite over adjacent. So, 6 is the opposite side of angle G, and 10 is the adjacent side of angle G. Put [tex]\frac{6}{10}[/tex], which simplifies to [tex]\frac{3}{5}[/tex].

Hope this helps! :)

The heights of two elevators can be modeled by linear functions. At time t = 0. Elevator A is 16 feet above ground floor.
It descends at a rate of 4 feet per minute. The height of Elevator B is shown in the graph.
Which of the following statements are true? Select all that are true.

Answers

Answer:

Option B: Elevator A descends at a faster rate than elevator B

Option C: Elevator A will reach the ground first

Step-by-step explanation:

Elevator A: -4x+16

Elevator B: -3x +16

Option B: Elevator A descends at a faster rate than elevator B

Option C: Elevator A will reach the ground first

The calculation is as follows:

For Elevator A: -4x+16

And,  

Elevator B: -3x +16

Therefore the above statements are true.

Learn more: https://brainly.com/question/20492533?referrer=searchResults

What is the image of (2,4) after a reflection over the x-axis?

Answers

Answer:

(-2, -4)

Step-by-step explanation:

I Hope this helps you out!

Answer:

(-2,-4)

i would recommend; watching a vid abt this!

Jerome and his brother stayed at the carnival from 4pm to 8pm they spent 90 minutes watching the magic show what percentage of the evening did they spend at the magic show

Answers

Answer:

Percentage of time spend in magic show = 37.5%

Step-by-step explanation:

Given:

Total time 4pm to 8pm = 4 hours = 4 x 60 = 240 minutes

Time spend in magic show = 90 minutes

Find:

Percentage of time spend in magic show

Computation:

Percentage of time spend in magic show = [Time spend in magic show / Total time]100

Percentage of time spend in magic show = [90 / 240]100

Percentage of time spend in magic show = 37.5%

Answer:37.5%

Step-by-step explanation:

HELLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLP! what x-45 divided by 17 if x=98?

Answers

Answer:

98-45/17=3.11

Step-by-step explanation:

Thanks for the points

ILL GIVE YOU BRAINLEST PLEASE THIS IS THE ONLY QUESTION I HAVENT ANSWER!

Answers

A and B

Both A and B, when simplified get -(1/6), because the others have either 0 or 2 negative signs, denoting a positive end result.

Can someone help me with this problem ASAP ;-;

Answers

Answer:

B one out of six

Step-by-step explanation:

Six options, one is the five, therefore 1/6

Answer:

C. 1/6

Explanation:

According to this problem this dice has 6 numbers/sides, so rolling it once would give you a 1 out of 6 changes of landing on the 5.

If this answer was helpful, please mark brainliest. <3

A _____ is a statement that has been proved

Answers

Answer:

Fact

Step-by-step explanation:

A Fact is a statement that has been proved :)

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