3 years ago

5. Which equation is an open sentence?

Mathematics

1 answer:

dimaraw [331]3 years ago

5 0

Answer:

Step-by-step explanation:

there is an unknown thingy which is x

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2x - y = 4<br> y = 2x + 4<br> Solution(s):<br><br> PLEASEEE

Ber [7]

The answer is 0 solutions. This problem has none

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2 years ago

Can someone help or explain the problem to me

SVEN [57.7K]

Answer:

I think I explained the circle one before so I'll explain the left question because I wanted some points.

here,

area of circle is πr² which is given= 12 π cm²

so πr²= 12π

r= 2√3

d= 2r= 4√3

AB is diameter so AB= 4√3

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2 years ago

Which number line shows the solution to 11x + 14 < –8?

Alika [10]

Answer:

positive 11x+ positive 14 to the right is greater than negative 8 to the left

Step-by-step explanation:

hope I helped

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3 years ago

Read 2 more answers

Find the altitude of a cylinder with with a radius of 9 and a surface area of approximately 791.68 units2.

Vika [28.1K]

In this question , it is given that we have a cylinder with with a radius of 9 and a surface area of approximately 791.68 units square.

The formula of surface area of cylinder is

$A= 2 \pi r^2 + 2 \pi r h$

Substituting the values of A and r, we will get

$791.68 = 2* \pi * 9^2 + 2 * \pi * 9*h
\\
791.68 = 162 \pi + 18 \pi h
\\
791.68 -162 \pi = 18 \pi h
\\
h = \frac{791.68 -162 \pi}{18 \pi}
\\
h =5 units$

So the height of the cylinder is 5 units .

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3 years ago

Hey, I've been extremely confused with problems like :7x²-12x-4

bonufazy [111]

Factor by grouping.

(7x+2)(x-2) I think not sure

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3 years ago