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3 years ago

9

Select the correct answer.

2 answers:

mart [117]3 years ago

7 0

You got the correct answer already it’s b

Pavlova-9 [17]3 years ago

5 0

One simple kind of transformation involves shifting the entire graph of a function up, down, right, or left. The simplest shift is a vertical shift, moving the graph up or down, because this transformation involves adding a positive or negative constant to the function.

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The perimeter of the rectangle is 80 cm. The area of the rectangle is acm2 . (i) show that x 2 40x + a = 0.

erica [24]

Answer:

Proved

Step-by-step explanation:

Given

$p = 80$ ---- perimeter

$a \to area$

Required

$x^2 + 40x + a = 0$

The perimeter is calculated as:

$p = 2(x + y)$

Where

$x,y \to$ the rectangle dimension

So, we have:

$2(x + y) = 80$

Divide by 2

$x + y = 40$

Make y the subject

$y = 40 - x$

The area of the rectangle is:

$a = xy$

$a = x * (40 -x)$

$a = 40x -x^2$

Equate to 0:

$x^2 - 40x + a = 0$

4 0

3 years ago

Evaluate h(x)=4x-2 find h(x+2)

sleet_krkn [62]

H(x)=4x-2

In the equation

h(x+2) we substitute x for x+2 ....

h(x+2)=4x+2-2
h(x+2)=4x

6 0

3 years ago

Read 2 more answers

A plumber charges a base fee of $60, and then each hour of work costs $15. Yesterday Joe hired the plumber to fix his sink, at a

grigory [225]

Answer:

12

Step-by-step explanation:

240-60

then devided by

15

7 0

3 years ago

What is the volume of the cone? Cone V = 1/3 Bh V = 1/3 πr2h V = 1/3 π32(8) V = 1 3 π(9)(8) V = 1/3 π(72) The cone has a volume

Amanda [17]

The volume of cone is 24 $\pi$ or 75.398 cubic centimeters, if the cone has a radius of 3 centimeters and height of 8 centimeters.

Step-by-step explanation:

The given is,

Formula for volume of cone, $V = \frac{1}{3} Bh$

Where, B = $\pi r^{2}$

Volume, $V= \frac{1}{3} \pi r ^{2} h$

From the given,

Radius, r = 3 centimeters

Height, h = 8 centimeters

volume, $V= \frac{1}{3} \pi (3 ^{2})( 8)$

$= \frac{1}{3} \pi (9)( 8)$

$= \frac{1}{3} \pi (72)$

$= 24\pi$

Volume of cone, V= 24 $\pi$ (volume in terms of $\pi$ )

( or )

Volume, V = (24 × 3.14 ) ( ∵ $\pi$ =3.14 )

V = 75.398 cubic inches

Result:

The volume of cone is 24 $\pi$ or 75.398 cubic centimeters, if the cone has a radius of 3 centimeters and height of 8 centimeters.

3 0

3 years ago

Read 2 more answers

Given the function f(x)=7x^3+4x-4<br> Find f(5)

daser333 [38]

Here,

f(x) = 7x^3 + 4x - 4

f (5) = ?

Now,

f (5) = 7*5^3 + 4*5 - 4

= 7*125 + 20 - 4

= 875 + 20 - 4

= 895 - 4

= 891

It's a Right answer...

I hope you understand...

Mark me as brainliest...

3 0

4 years ago