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3 years ago

R^2 = 4r-4 Please show steps

Mathematics

1 answer:

natita [175]3 years ago

8 0

Answer:

r = 2

Step-by-step explanation:

$r^{2}$ = 4r-4

square root both sides

r = $\sqrt{}$ 4r-4

r = 2r-2

2r-r = 2

r = 2

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If f(x) = 3x - 1 and g(x) = x + 2 , find (f - g)(x)

ivolga24 [154]

Answer:

Answer D is the correct answer 4x+1

3 0

3 years ago

Which equation can be used to solve the problem? 75 percent of what number is 150? asap

shutvik [7]

Answer:

200

Step-by-step explanation:

Multiplying both sides by 100 and dividing both sides by 75,we have x = 150 ×

100/75

x = 200

4 0

3 years ago

Read 2 more answers

A designer is creating various open-top boxes by cutting four equally-sized squares from the corners of a standard sheet of 8.5

Oxana [17]

Answer:

L(x) = 11 - 2x

W(x) = 8.5 - 2x

V(x) = 4x³ - 39x² + 93.5x

Step-by-step explanation:

If a square of x sides length is cut from each corner of the sheet, then it meas the length and width of the box a shortened by x inces from each side, giving a total subtraction of 2 times x inches.

FORMULA FOR LENGTH:

Since, Length is the bigger side of the box. Therefore, it will be taken on 11 inches side of the paper:

L(x) = 11 - 2x

FORMULA FOR WIDTH:

Since, width is the smaller side of the box. Therefore, it will be taken on 8.5 inches side of the paper:

W(x) = 8.5 - 2x

FORMULA FOR VOLUME:

Volume is the product of length, width and time:

V(x) = L(x)*W(x)*H(x)

Height must be equal to the side folds which are equal to length of the side of square = x:

H(x) = x

Therefore,

V(x) = (11 - 2x)(8.5 - 2x)(x)

V(x) = (93.5 -22x -17x + 4x²)(x)

V(x) = 4x³ - 39x² + 93.5x

8 0

3 years ago

The rectangular prism is made of 8 cubes and has and edge length of 1/2 in, what is the volume

sashaice [31]

Hello!

To find the volume of the prism you first have to find the volume of a cube

To do this you use the equation

$V = a^{3}$

V is volume
a is side length

Put in the values you know

$V = \frac{1}{2}^{3}$

Solve

V = 0.125

Now to find the volume of the prism you multiply the volume of one cube by the amount of cubes in the prism

0.125 * 8 = 1

The answer is 1 cubic inch

Hope this helps!

4 0

3 years ago

7^(x+4)=-34 solve for x

damaskus [11]

for
x^m=y
that means
$log_x(y)=m$
so

$7^{x+4}=-34$ means

$log_7(-34)=x+4$
minus 4 from both sides
$log_7(-34)-4=x$

6 0

3 years ago