3 years ago

How can you find the Circumference in mm and in cm squared?

1 answer:

5 0

The formula is 2 (pi)r
The diameter is a 27.4 which means the radius is half of that or 13.7.
So 2 (pi)r equals 27.4 (pi)
That should be your answer

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The length of a rectangle is 4cm longer than the width, and the perimeter is at least 48cm. What are the smallest possible dimen

jenyasd209 [6]

So since the length is 4+w. Then the perimeter 2(4+w) + 2w >= 48.
so, 8+2w+2w>=48.
8+4w>=48
4w>=40
w>=10
so, the width must be at least 10. And the smallest dimensions can be 10 x 14.

3 0

3 years ago

7x(x+4) 7x^2+4 7x^2+28x 8x+4 8x+11

Scilla [17]

Answer:

$7x^2+28x$

Step-by-step explanation:

$7x(x+4)\\\\Multiplication\ is\ distributive\ on\ addition\\\\\Rightarrow 7x(x+4)=7(x\times x+x\times 4)\\\\7x(x+4)=7(x^2+4x)\\\\Multiplication\ is\ distributive\ on\ addition\\\\\Rightarrow 7x(x+4)==7\times x^2+7\times 4x\\\\7x(x+4)=7x^2+28x$

6 0

3 years ago

The company that owns the telescope gives a discount of $8 off the rental fee for every rental hour after the first two hours. T

NISA [10]

Answer:

Step-by-step explanation:Please give me a brainly

4 0

2 years ago

A line passing (a,3) and (5,5) is perpendicular to a line passing through (0,0) and (1,a) Find the value of a.

vodka [1.7K]

Answer:

a = -5

Step-by-step explanation:

(5 - 3)/(5 - a)

2/(5 - a)

perpendicular of 2/(5 - a) = -(5 - a)/2

(a - 0)/(1 - 0) = -(5 - a)/2

a/1 = -(5 - a)/2

2a = -5 + a

a = -5

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3 years ago

What is the solution to the equation 7(3-x)=-7(x+3)-4

marissa [1.9K]

Answer:

No solution

Step-by-step explanation:

21−7x=−7x−21−4

21−7x=−7x−25

21=−25

No solution

4 0

3 years ago