If f(x)=2x^3+4x^2, find f(-3)

Answers

Answer 1

Answer:

f(-3) = -18

Step-by-step explanation:

f(x)=2x^3+4x^2, find f(-3); let's rewrite

f(x) = 2[tex]x^{3}[/tex] + 4[tex]x^{2}[/tex]; substitute -3 for x

f(-3) = 2[tex](-3)^{3}[/tex] + 4[tex](-3)^{2}[/tex]; do the exponents

f(-3) = 2(-27) + 4(9); multiply and add

f(-3) = -54 + 36 = -18

Answer 2

The value of the function  f(x) = 2x³ + 4x² at f(-3) is - 18.

What is a function?

A function can be defined as the outputs for a given set of inputs.

The inputs of a function are known as the independent variable and the outputs of a function are known as the dependent variable.

Given, A function f(x) = 2x³ + 4x².

Now, The value of the function f(-3) can be obtained by replacing

x with - 3.

Therefore, f(-3) = 2(-3)³ + 4(-3)².

f(-3) = 2×-27 + 4×9.

f(-3) = - 54 + 36.

f(-3) = - 18.

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Related Questions

In triangle ABC, AB measures 25 cm and AC measures 35 cm. The inequality < s < represents the possible third side length of the triangle, s, in centimeters. The inequality < p < represents the possible values for the perimeter, p, of the triangle, in centimeters.

Answers

Answer:

The inequality 10 < s < 60 represents the possible third side length of the triangle, s in centimeters.

The inequality 70 < p < 120 represents the possible values for the perimeter p, of the triangle in centimeters.

Step-by-step explanation:

Firsts one The lower number has to be the difference between the bigger number and smaller number. In this case 35 - 25 = 10 and the s < 60 has to be the sum of both numbers.

Second one. I'm assuming it's just the sum of the two numbers to the first answer, and the second number is just the second number from the previous one, but multiplied by 2. Sorry that I couldn't go into too much detail about this one

The inequality that represents the possible third side length

[tex]10cm<s<60cm[/tex]

The inequality that represents the possible values for the perimeter

[tex]70cm<P<120cm[/tex]

Given :

In triangle ABC, AB measures 25 cm and AC measures 35 cm.

For any triangle , we know that the sum of measures of two sides is greater than the third side

Let 's' be the third side length

[tex]25+35>s\\60>s\\\\Also , s+25>35\\s>35-25\\s>10\\Inequality\; is \;\\10<s<60[/tex]

Now we find the perimeter when s=10

Perimeter = sum of all the sides

[tex]s=10\\P=25+35+10=70\\s=60\\P=25+35+60=120[/tex]

[tex]70<P<120[/tex]

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Can someone help me with this please asap

Answers

Answer:

The answer is 4

Step-by-step explanation:

because all of the angles need to add up to 180 so 17 x 4 is 68 and 68 - 8 = 60 and 60 x 3 = 180 so the answer would be 4

Answer:

4

Step-by-step explanation:

Since all the sides are congruent, so is the angles and in a triangle all angles add up to 180. To find the angle of one of them divide 180 by 3 which is 60.

Then put the equation equal to 60

17x - 8 = 60

17x = 68

x = 4

Someone plz help this is due tmr and I’m gonna get a f

Answers

the answer is 48. because both are parallel to each other and its a corresponding angle so angles are same :)
The angle is 48 degrees I believe

A sink contains 16 liters of water before the drain is opened. It drains at a rate of 2 liters per minute.

Use the segment tool to plot a graph representing the liters of water in the sink over time. Plot only one segment which represents the situation from when the sink starts draining until the sink is empty.

Answers

Answer:

8

Step-by-step explanation:

16 liters divided by 2 liters a minute you get 8

also i would do a graph but there is no way of putting it up with my answer i hope this helps a little if it doesnt im sorry

Please help. It’s due in a couple minutes

Answers

Answer:

They failed to create a strong national government.

Step-by-step explanation:

They gave the states too much power that the government should have had making the national government weak.

The distance to the nearest exit door is less than 150 feet.
Use d to represent the distance (in feet) to the nearest exit door.

Answers

Answer:

d<150

Step-by-step explanation:

idk how to do math ​

Answers

that's why we have the beautiful internet

The table shows the amount spent on tomatoes at three different stands at a farmer's market. Which stand sold their tomatoes at the least expensive price per pound, and what is that price? Round to the nearest cent as necessary.​

Answers

Answer:

i have the same question someone pls answer

Step-by-step explanation:

Stand C sold their tomatoes at the least expensive price per pound that price is 2.70 per pound.

What is Ratio?

The ratio is defined as a relationship between two quantities, it is expressed as one divided by the other.

Stand    Weight(lb)    Cost

  A            3/4             2.00

  B            1 1/4            3.45

  C            5 1/2            14.85

We have to determine the price of sold tomatoes at the least expensive price per pound.

the price of sold tomatoes at stand A:

⇒ 2/(3/4) = 2/0.75  = 2.67 per pound.

the price of sold tomatoes at stand B:

⇒ 3.45/(5/4) = 3.45/1.25  = 2.76 per pound.

the price of sold tomatoes at stand C:

⇒ 14.85/(11/2) = 14.85/5.5= 2.70 per pound.

Here is the least expensive price per pound at stand C.

Therefore, stand C sold their tomatoes at the least expensive price per pound that price is 2.70 per pound.

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Does the graph represent a function? Why or why not?

Answers

Answer:

Yes

Step-by-step explanation:

The line can go through the graph and have the y- axis lines hit it once

Answer:

it does not.

Step-by-step explanation:

for a graph to represent a function, it needs to pass the vertical line test (just run a finger or pencil along the graph vertically and if you never have two points touch the vertical line, it passes). there are multiple points at x=0

15 points!!
b. Determine whether hypotenuse-leg (HL) is a valid means for establishing triangle
congruence for right triangles. If it is a valid criterion, explain why.

Answers

Answer:

If the hypotenuse and one leg of a right triangle are congruent to the hypotenuse and one leg of another right triangle, then the triangles are congruent.

Step-by-step explanation:

help me answer pls :)


what is the value of y when x=43

Answers

Answer:

87

Step-by-step explanation:

f(x) = 2x+1

Can someone help me pleaseeee
Amdjjsisjshajsvdvd

Answers

Answer:

I BELIEVE THE ANSWER WOULD BE C

Step-by-step explanation:

I’m pretty sure it’s C sorry if I’m wrong

what is -xy x=6 y=3​

Answers

Answer:

the answer is -18

Step-by-step explanation:

Put 6 in for x and 3 in for y 3 times 6 is 18 and since there is a negative in front then it is a negative answer

Answer:

Heya your answer is - 18 (minus 18)

Pls help last one
Which one is it

Answers

I think it’s SAS

SAS Means: If any two angles and the included side are the same in both triangles, then the triangles are congruent

please help no work needs to be shown

Answers

i got 57.352 but i’m not 1000% sure

mejores aplicaciones de matemáticas?

Answers

Mathphoto n basically brainly

Can someone put this into vertex form?
y=x2+24x-15

Answers

Answer:

The vertex form of y = x² + 24x - 15 is y = (x + 12)² - 159

Step-by-step explanation:

The vertex form of the quadratic equation y = ax² + bx + c is

y = a(x - h)² + k, where

a is the coefficient of x²(h, k) are the coordinates of the vertex pointh = [tex]\frac{-b}{2a}[/tex] , where b is the coefficient of xk = y at x = h

Let us use the facts above to solve the question

y = x² + 24x - 15

∵ a is the coefficient of x² and b is the coefficient of x

a = 1 and b = 24

∵ h is the x-coordinate of the vertex point

∵ h = [tex]\frac{-b}{2a}[/tex]

→ Substitute the values of a and b to find h

∴ h = [tex]\frac{-24}{2(1)}=\frac{-24}{2}[/tex]

h = -12

→ To find k substitute y by k and x by h

∵ y = k and x = h

∴ k = (-12)² + 24(-12) - 15 = 144 - 288 - 15

k = -159

∴ The coordinates of the vertex point are (-12, -159)

→ Substitute the values of a, h, and k in the vertex form above

∵ y = 1(x - -12)² + (-159)

→ Remember (-)(-) = (+) and (+)(-) = (-)

y = (x + 12)² - 159

The vertex form of y = x² + 24x - 15 is y = (x + 12)² - 159

Answer:

sure.

Step-by-step explanation:

The Bears have won 7 and tied 2 of their last 13 games. They have not forfeited any games. Which ratio correctly compares their wins to losses?

Answers

Answer:

7:4

Step-by-step explanation:

7:4 because if 13 is the total amount of games, that minus the amount of games won and tied equals the amount of games loss which is 4. Since it says wins to losses, the wins will come first in the ratio. Therefore the correct answer would be 7:4.

Answer:

7:4

Step-by-step explanation:

I have a question on this math problem that I'm stuck on

Answers

Answer:

what's the question?..

Multiple Step Equations
Solve the multiple choice equation
What is the solution to this equation?
5(x – 4) = 3x + 4
A x = -8
(B) x = -2
C x=3
(D) x = 12
Math

Answers

The answer is D.

The first step is to use the distributive property and turn 5(x-4) into 5x - 20.
You then move the twenty into the right equation by adding 20 to both sides. The final step is to move the 3x into the left equation by subtraction and then dividing both sides by 2 to isolate x. Hope this helped !!

Answer:

D

Step-by-step explanation:

5(x-4) = 3x + 4

5x-20 = 3x + 4

5x-3x-20= 4

2x=4 +20

2x=24

x=12

check answer by inserting 12 for x into original  equation.

5(12-4) = 3(12) +4

5(8) = 36 +4

40 = 40

a concert started at 5:22pm on friday. the concert ended at 7:04 pm. how long did the concert last?

Answers

Answer:

1 hour and 42 min

Step-by-step explanation:

1 hour and 42 minutes would be you answer

If you look online there are calculators specifically for time and that’s how I got the answer

simplify [tex]\sqrt{-121}[/tex]

Answers

Answer:

You cannot simplify because you cannot square root a negative.

Use a property of exponents to simplify. 3Use as the base.

Answers

Answer:

3^4 because when u divide exponents w same base just subtract the exponents

Step-by-step explanation:

PLS SOMEONE HELP QUICK

Answers

Answer:

light blue

Step-by-step explanation:

Calculate a number whose square root is 2.3

Answers

Answer: The root of 2.3 is 1.5165750888103

Step-by-step explanation:

What is the slope-intercept equation for the line below?

Answers

Can you please show us the graph ?

Answer:

dumb dumb

Step-by-step explanation:

Help me with this please

Answers

Answer:

B?

Step-by-step explanation:

what expression is equivalent to (7² )⁵ ÷ 7¯⁶

Answers

Answer: 7^16

Step-by-step explanation:

How do you think the area of the polygon compare to the area of the circle

Answers

Answer:

It is split open, therefore creating a new polygon

Step-by-step explanation:

What are two coordinates on this graph?

Answers

Answer:

(0, 5) and (6, 0)

Step-by-step explanation:

please mark brainliest and have a great day

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