3 years ago

What whole number equals 25 when it is squared and 125 when it is cubed

2 answers:

8 0

The whole number is five

3 0

The number is 5

5^2=25
5^3=125

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Andreas93 [3]

Use formula $a^2-2ab+b^2=(a-b)^2$

$4x^2-12x+9
\\(2x)^2-2(2x)(3)+3^2
\\(2x-3)^2$

6 0

3 years ago

hoa [83]

Step-by-step explanation:

x + (x + 2) + (x + 4) + (x + 6) + (x + 8) = 135

5·x + 20 = 135

5·x = 115

x = 23

So the sequence is

23, 25, 27, 29, 31

The second number is 25.

Do you agree?

6 0

3 years ago

mariarad [96]

The correct answer is 12

Hope this helped!

3 0

3 years ago

irina [24]

Step-by-step explanation:

is the number of unit squares that cover surface of a figure.

8 0

3 years ago

MissTica

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About 7.8- Kilometer Per Hour

7 0

3 years ago