f(x)=2x^2-3x+7 evaluate f(-2)

Answers

Answer 1

Answer:

Step-by-step explanation:

Find two linear functions p(x) and q(x) such that (p (f(q(x)))) (x) = x^2 for any x is a member of R?

Let  p(x)=kpx+dp  and  q(x)=kqx+dq  than

f(q(x))=−2(kqx+dq)2+3(kqx+dq)−7=−2(kqx)2−4kqx−2d2q+3kqx+3dq−7=−2(kqx)2−kqx−2d2q+3dq−7  

p(f(q(x))=−2kp(kqx)2−kpkqx−2kpd2p+3kpdq−7  

(p(f(q(x)))(x)=−2kpk2qx3−kpkqx2−x(2kpd2p−3kpdq+7)  

So you want:

−2kpk2q=0  

and

kpkq=−1  

and

2kpd2p−3kpdq+7=0  

Now I amfraid this doesn’t work as  −2kpk2q=0  that either  kp  or  kq  is zero but than their product can’t be anything but  0  not  −1 .

Answer: there are no such linear functions.


Related Questions

Find the slope of the line.

Answers

Answer:

The slope is y = x

Step-by-step explanation:

You can find the slope by using the rise over run method with two points.Let's take (1,1) and (2,2). From the first point to the second point, (1,1) goes up one unit and to the right one unit.So the rise over run is 1/1, or 1, which means the slope is 1.

Answer:

m = 1x

Step-by-step explanation:

This is the easiest slope you'll ever have to calculate - if you even need to as it's self explanatory looking at it! Slope = rise/run, thus slope = 1/1 = 1.

A rainwater collection system collects water into a holding tank. For every 1 cm of rainfall on a 100 m² roof, 1,000 L of water can be colleA. How many liters of water can be crainfall on a 120 m² roof?
Part B. How many centimeters of rainfall are needed to fill a 40,000 L holding tank from a 120 m² roof?

Answers

Answer:

A: 3 0 0

B: 150 ;-;

Step-by-step explanation:

Use the distributive property to remove the parentheses.
-6(-v+2y-5)

Answers

Answer:

6v-12y+30

Step-by-step explanation:

Hope this helps:)

(3x + 2) to the power of 2(i didnt know how to put that on keybored)

Answers

[tex](3x)^{2} +2*3x*2+2^{2} \\3^{2} x^{2} +2*3x*2*2^{2} \\9x^{2} +2*3x*2+2^{2} \\9x^{2} +2*3x*2+4\\9x^{2} x^{2} +12x+4[/tex]

Mrs.Roberts drives 3/4 miles in 1/2 minute. How many miles can she drive in 1 minute?

Answers

Answer:

1 1/2  OR 1.5 in decimal form

Step-by-step explanation:

If Mrs. Roberts drives 3/4 miles in half a minute, 1/2 x what = 1? 2. Multiply both items by 2. 3/4 x 2 = 6/4, also known as 1 1/2 or 1.5 Hope this helped!!

In Livingston, the library is 9 miles south of the courthouse and 2 miles west of the community swimming pool. If a bird flew directly from the courthouse to the library, then from the library to the swimming pool, and then from the swimming pool back to the courthouse, what would be the total distance flown? If necessary, round to the nearest tenth.

Answers

Answer:

i think it's 18 but im not sure

Step-by-step explanation:

it is a polynomial equation of degree two that can be written in tche form, where a,b, and c are real numbers and a =/

Answers

Answer:

A quadratic function is a second degree polynomial function. The general form of a quadratic function is this: f (x) = ax2 + bx + c, where a, b, and c are real numbers, and a≠ 0.

BRAINLY TO WHOEVER GETS IT RIGHT

Lauren has two summer jobs. During the week she works in the grocery store, and on
the weekend she works at a nursery. She gets paid $21 per hour to work at the grocery
store and $16 per hour to work at the nursery. How much does she earn if she works
8 hours at the grocery store and 6 hours at the nursery? How much does she earn if
she works g hours at the grocery store and n hours at the nursery?

total pay, 8 hours at the grocery store and 6 hours at the nursery: ____

Total pay, g hours at the grocery store and n hours at the nursery: ____

Answers

$264 for 8 hr grocery store and 6 hr nursery. To find this- Total pay = 8g + 6n

The cost is a linear function of the number of goldfish. Which statement describes the rate of change of this function ?

Answers

Answer:

a

Step-by-step explanation:

divide the cost by the number of goldfish

rewrite 6.00 as 600 and divide by 20 to get 30

then add the decimals back to get 0.30

Solve this equation. Enter your answer in the box. -5/6 - 2/3e=24

Answers

Answer:

[tex] - \frac{5}{6} - \frac{2}{3} e = 24 \\ - 1.2 - 1.5e = 24 \\ - 1.5e = 24 + 1.2 \\ - 1.5e = 25.2 \\ e = - \frac{25.2}{1.5} \\ e = - 16.8 [/tex]

solve 4 with exponent -4 without the exponent in other words

4 exponent -4 without exponent

Answers

Answer:

[tex] \frac{4}{1} \times \frac{4}{1} \times \frac{4}{1} \times \frac{4}{1} = \frac{256}{1} = - 256[/tex]

Step-by-step explanation:

I dont know if I'm right or not

but this is how I learned it

How do I solve that

Answers

Answer: 6.4

Step-by-step explanation:

you take help of ratio in this case.

8/x = 2.5/2

or, (2.5).(x) = (8).(2)

or, x = 16/2.5

so, x = 6.4

I am cooking a recipe. It requires 7/2 of sugar. I only have a 1⁄4 cup to measure the sugar with. How many quarter cups would I need to measure the correct amount of

Answers

Answer:

14

Step-by-step explanation:

Convert [tex]\frac{7}{2}[/tex] to a fraction with a common denominator

[tex]\frac{7}{2} (\frac{2}{2} )=\frac{14}{4}[/tex]

You now divide the fractions to find the amount of correct measurements needed.

[tex]\frac{\frac{14}{4} }{\frac{1}{4} }[/tex] For dividing by a fraction it is the same a multiplying by its reciprocal.

This becomes [tex]\frac{14}{4} (\frac{4}{1} )=\frac{14}{4} (4)=14[/tex]

You will need 14 correct measurements.

guys pls help me!!!!!!!

Answers

Answer:

The answer is t = 17

Step-by-step explanation:

Sum of angles on a straight line = 180⁰

(2t -7) + 90 + 49= 180

(2t -7) +139 = 180⁰

2t -7) = 180 - 139

2t - 7 = 41

2t = 41 - 7

2t = 34

Divide both sides by 2

t = 17

Niall poured 2.5 liters of sports drink on
each of his two bandmates' heads after a
concert. How many centiliters did he
dump all together?

Answers

Answer:

500 centiliters

Step-by-step explanation:

Using a phase is helpful for conversions. I like this one "King Henry died by drinking chocolate milk".

K- Kilo : 0.001

H- Hecta : 0.01

D- Deca : 0.1

b- base (gram, liter, meter, etc) : 1

d- deci : 10

c-centi : 100

m-milli : 1000

For every step up or down you move the decimal one place over depending on if you go up or down.

So, for 2.5L as centiliters you would move the decimal over two spots giving you 250 centiliters. You can also multiply or divide by 10 for each step taken. so for two steps you would multiply by 100, also giving you an answer of 250 centiliters. This is then multiplied by two as 250 cL was dumped twice.

12x-2=12x solve for x or is it no solution

Answers

12x - 2 = 12x

Step 1:

12x - 12x = 0

Step 2:

Bring down your -2 and your x

Answer:

x = -2

4 2/3x4=something/3x4/1=

Answers

Answer:

4 2/3x4= 14x^4/3

3x4/1 = 3^4

Step-by-step explanation:

please can somebody help me? I need to do this but i dont know how to

Answers

Answer:

n = 3.16 units; p = 5 units

Step-by-step explanation:

to find the length of the lines you need to use the pythagorean  theorem or a^2 + b^2 = c^2

in this case a is x, b is y, and c is the length

so for n it is:

1^2 + 3^2 = c^2 -->

1 + 9 = c^2 -->

10 = c^2

c = 3.16227766 or about 3.16 (this is n's length)

for p it is:

3^2 + 4^2 = c^2 -->

9 + 16 = c^2 -->

25 = c^2 -->

c = 5 (this is p's length)

HELP PLEASE
Three unit squares (1-by-1 squares) and two line segments connecting two pairs of vertices are shown.
What is the area of ABC?

Answers

Area abc def cuase its 126-72+28=82 so abc def

|3 - 5 + 7|.

O 15
O 5
O -15
O -5​

Answers

Answer:

5

Step-by-step explanation:

The answer is 5

because 3 - 5 = -2

and -2 + 7 = 5

so the answer is 5

I'm a 6th grader, does anyone know helpful ways to subtract mixed numbers and divide them?

Answers

Answer:

Are you asking how to break down a Fraction?

Answer:

I don't know

Step-by-step explanation:

PLEASE HELP!! Will mark Brainliest!

This unit is about polynomial and rational functions. What is a polynomial? What is a rational function? Are all polynomials rational functions, why or why not?

Answers

Answer:

What is a polynomial?

  - In mathematics, a polynomial is an expression consisting of indeterminates and coefficients, that involves only the operations of addition, subtraction, multiplication, and non-negative integer exponentiation of variables

What is a rational function?

- In mathematics, a rational function is any function that can be defined by a rational fraction, which is an algebraic fraction such that both the numerator and the denominator are polynomials.

Are all polynomials rational functions?

.A function that cannot be written in the form of a polynomial, so no they are not all functions.

What is the missing value?

Answers

the answer is 40

in

X 1 (+1) 2 (+1) 3 (+1) 4 (+1) 5

Y 4 (+9) 13 (+9) 22 (+9) 31 (+9) 40

Answer:

the missing value is 40 .

Step-by-step explanation:

if observed clearly the difference between every number is 9.

so 31+9 = 40 is the correct answer.

hope this helps you.

PLEASE PLEASE HELP ILL GIVE U BRAINEST​

Answers

Answer:

I only / 1 only

Step-by-step explanation:

Function rules: no same x-values and must pass vertical line test

1: all different x-values

2: has two of the same x-values

3: doesn't pass vertical line test

Hopefully this helps!

Brainliest please?

Answer:

1 only (I hope im right)

Step-by-step explanation:

Hope this helps:)

[tex]6^{4x-9} =(\frac{1}{36} )^{x-4}[/tex]

Answers

[tex]\displaystyle \large \boldsymbol {} 6^{4x-9} =\bigg(\frac{1}{36} \bigg)^{x-4} \\\\\\ 6^{4x-9}=(6^{-2})^{x-4 }\\\\\\ 6^{4x-9}=6^{-2x+8} \\\\\\ 4x-9=-2x+8 \\\\\\ 4x+2x=9+8 \\\\\\ \boxed{x=\frac{17}{6}=2\frac{5}{6} }[/tex]

Write an equation with infinitely many solutions that has the Expression 3x+6 on the left side of the equal side. Demonstrate that your equation has infinitely many solutions.​

Answers

3x+6=3x+6 I think that is how you do it but I’m really bad at math

If you sell $1000 worth of popcorn, then your Boy Scout dues are free. Ethan sold $1000 worth of popcorn. Conclusion: Ethan's Boy Scout dues are free.

This conclusion was draw using the law of contrapositive


This conclusion was draw using the law of detachment


This conclusion was draw using the law of syllogism


An invalid conclusion was made

Answers

Not 100% sure but I’d say B

Find the missing length of the triangle.
1.5 cm
a
1.2 cm
a =
cm

Answers

Answer:

take the square of 1.5then subtract the square of 1.2 to get the square of the Missing side then get it's square root

Which of the following will form the composite function G(F(x)) shown
below?
G(F(x)) = 4.
O A. F(x) = x and G(X) = A
B. Fx) = 5x and G(X) = 4x
C. F(x) = 4x and G(x) = 5x
D. Fx) = 5x and G(x) = 4
SUBMIT

Answers

Answer:

ji aap ka answer number (B) wala hai

hope it's help you (^0^)

The composite function G(F(x)) = 4√x is for the functions when F(x) = √x and G(x) = 4x.

What is Composition of Functions?

Composition of two functions f and g can be defined as the operation of composition such that we get a third function h where h(x) = (f o g) (x).

h(x) is called the composite function.

Given that, the composite function is,

G(F(x)) = 4√x

We have to find the functions G(X) and F(x).

We know that,

G(F(x)) is the function G(x) when x is changed to F(x).

Let G(x) = 4x

In G(F(x)), x will be replaced by F(x).

In order to get 4√x, x is replaced by √x.

So, F(x) = √x

Hence G(x) = 4x and F(x) = √x.

Learn more about Composite Functions here :

https://brainly.com/question/15190250

#SPJ7

how do you solve 2 to the 35th power​

Answers

Answer:34359738368

Step-by-step explanation: 2 to the 35th power is basically 2 x 2 35 times. You can solve it on a caculator by typing in 2 and pushing the button that allows you to enter 35 (which is the exponent, or the little number) The button will usually have an x with a little y at the top right corner

Other Questions
The zoo needs to replace some of the railroad tracks that support their train ride. The total length of the track is 500 feet,and there are three sections that need to be replaced. These sections measure 61, 83, and 63 feet. How much of the zoorailroad track does not need to be replaced? An is good looking and well be haved (not only) Identify and explain 2 ways that prejudice can affect life chances. (Please help ASAP) President Hoover thought the government could help the economic situationby:A. providing jobs through public works projects.B. enforcing stricter regulations on big businesses.C. offering direct aid to the poor.D. lowering the tariff rates to increase foreign trade. [DUE TOMORROW] Answer using steps: A truck sprang a leak in its radiator, which held 480 ounces of fluid when it started to leak. Assuming the truck continues at 35 mph and its radiator leaks 4 ounces of fluid per minute, how many miles will the truck travel before the radiator is empty The mass of an object is 100mg. What is the object's mass in kg? Show your work What is a major drawback of using fossil fuels? fully simplify (2x^4-y)^2 Show that x is not the factor of 2x*3-x*2-2x+1 How can an understanding of electricity help you use it safely? What is placed as the first step in the scientific method? What is the difference between advise and advice? Read the sentences.Taxi drivers themselves have to know nearly every street in the city. Paul drove himself around several neighborhoods to learn where the streets are since he wants to become a taxi driver.Which choice correctly identifies two pronouns from the sentences?himself (reflexive), he (intensive)themselves (intensive), himself (reflexive)themselves (reflexive), himself (intensive)himself (intensive), he (reflexive) What kind of people can achieve success in life? Wastewater treatment plants can make wastewater drinkable again. Which ofthe following is a technology used to remove solids from the water?O A. Treating the water with certain bacteria and airO B. Shaking and skimming them from the surface of the waterO c. Adding hydrochloric acid and chlorine to the waterO D. Filtering and allowing them to settle out of the waterSUBMIT Which statement is TRUE? Select 3 that have the longe sound Your response has already been submitted What is the product of 31 and -1}? Enter your answer as a mixed number, in simplified form, in the box. HELP I WIPL MARK BRAINLIEST How did The BEIC treat the Indians?