All categories

2 years ago

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

Mathematics

1 answer:

alexandr402 [8]2 years ago

8 0

The answer is 0.
[f(x)=2x^2-4x] * 4
2x^2=4x
4x-4x=0
0*4+0
I hope I helped!

You might be interested in

Calculate the length of AD give your answer to three signifcant figures

scZoUnD [109]

There’s no photo of the figure attached

4 0

2 years ago

Im stuck on these 2 questions

Kryger [21]

Answer:

In the first question it is the 2nd table. On the second it is : No, the xost of the 9 shirts is incorrect

8 0

2 years ago

Read 2 more answers

Robin spent $ 28 at an amusement park For admission and rides. If she paid $6 for admission and rides cost $2 each what is the t

motikmotik

Answer:

11 rides

Step-by-step explanation:

let the total amount be y

and let the number of ride be x

the expression for the situation is y=mx+c

given

total amount=$28

admission fee= $6

cost per ride=$2

we are expected to find x

substitute into the expression we have

28=2x+6

28-6=2x

22=2x

divide boths sides by 2 we have

x=22/2

x=11

the number of rides is 11

4 0

2 years ago

NISA [10]

Answer:

Step-by-step explanation:

5 0

2 years ago

Read 2 more answers

Y = 3 sin2x, y = 0, 0 ≤ x ≤ π; about the x−axis

Dominik [7]

I assume you're revolving the region with those bounds about the x-axis, and supposed to find the volume.

Via the disk method,

$\displaystyle\pi\int_0^\pi(3\sin2x)^2\,\mathrm dx=9\pi\int_0^\pi\sin^22x\,\mathrm dx$

Recall the half-angle identity for sine:

$\sin^2t=\dfrac{1-\cos2t}2$
$\implies\displaystyle\frac{9\pi}2\int_0^\pi(1-\cos4x)\,\mathrm dx$
$=\displaystyle\frac{9\pi}2\left(x-\frac14\sin4x\right)\bigg|_{x=0}^{x=\pi}$
$=\dfrac{9\pi^2}2$

8 0

3 years ago