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4 years ago

What is the surface area of the cube

Mathematics

1 answer:

madam [21]4 years ago

3 0

There are six faces on the cube, each with a surface area of (4.5 m)^2 = 20.25 m^2. They add up to the amount given by the first selection.

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2x2 + 8x = 10 is equivalent to which of the following?

hammer [34]

Answer:

A. ( x + 2)²=9

Step-by-step explanation:

2x2 + 8x = 10 equivalent to :

x²+4x =5 ....(divid by2)

(x²+4x+4 ) - 4=5

(x +2)² - 4 = 5

(x +2)² =9...(add 4)

6 0

3 years ago

A constructive company purchased seven house lots of the following sizes 1 3/8 acres , 2 1/8 acres. 1 1/8 acres , and 2 1/4 acre

chubhunter [2.5K]

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4 0

4 years ago

In our hall, there are 10 fans, but only 60% of them are working. Write the number of fans that are out of order?! Pls answerr I

Natali [406]

Answer:

Step-by-step explanation:

There's 10 fans, so each is worth 10%

If 60% of them are not working, that means that 6 fans are not working.

10 - 6 = 4

There are 6 not working fans

and there are 4 working fans

3 0

3 years ago

Thanks for the help!

NikAS [45]

Answer:

Step-by-step explanation:

So we have the piecewise function:

$f(x)= \begin{cases}\sqrt{2x} & \text{if }x$

And we want to find f(8).

Since our input value is 8, choose the equation that fits our input.

The first equation demand x to be less than 3. 8 is not less than 3, so we won't use that.

The second equation demand x to e greater than or equal to 3 and less than 8. 8 is <em>not</em> less than 8. So, we won't use that.

The third equation demands x to be greater than or equal to 8. 8 is greater than or equal to 8, so we'll use the third equation.

So:

$f(x)=42\text{ if }x\geq 8$

$f(8)=42$

There're nothing more to do, we're done :)

The answer is A.

Edit: Improved Format

3 0

4 years ago

Valuate 2y when y =<br>

PtichkaEL [24]

Step-by-step explanation:

Please what is the value of y

6 0

3 years ago