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2 years ago

7

HELP PLEASEEE YOULL GET 15 POINTS

1 answer:

katrin2010 [14]2 years ago

3 0

Answer:

2.5 KPH

Step-by-step explanation:

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Simply. If the solution is not a real number enter not a real number rotate picture answer all 3 please

yuradex [85]

Answer:

13. $\frac{\sqrt[5]{x^4} }{x}$ .

14. $v = \pm3\sqrt{5}$

15. 2.

Step-by-step explanation:

13. $x^{1/5} * x^{-2/5}$

= $x^{1/5 + (-2/5)}$

= $x^{1/5 - 2/5}$

= $x^{-1/5}$

= $\frac{1}{x^{1/5}}$

= $\frac{x^{4/5}}{x^{1/5 + 4/5}}$

= $\frac{x^{4/5}}{x}$

= $\frac{\sqrt[5]{x^4} }{x}$ .

14. $v^2 - 45 = 0$

$v^2 = 45$

$\sqrt{v^2} = \pm\sqrt{45}$

$\sqrt{v^2} = \pm\sqrt{3^2 * 5}$

$v = \pm3\sqrt{5}$ .

15. $\sqrt[3]{2} * \sqrt[3]{4}$

= $\sqrt[3]{2 * 4}$

= $\sqrt[3]{2 * 2 * 2}$

= $\sqrt[3]{2 ^3}$

= 2.

Hope this helps!

7 0

2 years ago

Find the volume of the square pyramid below

Snowcat [4.5K]

Answer:

A

Step-by-step explanation:

The volume (V) of a pyramid is

V = $\frac{1}{3}$ area of base × perpendicular height (h)

area of square base = 4² = 16 and h = 4, hence

V = $\frac{1}{3}$ × 16 × 4 = $\frac{64}{3}$ = 21 $\frac{1}{3}$ ft³

7 0

2 years ago

Given the equation y = 3x − 4, what is the value of x when y = 5? A) 3 B) 6 C) 9 D) 12

timurjin [86]

Answer:

3

Step-by-step explanation:

the equation would be 5 = 3(3) - 4

which is 9 - 4 = 5

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3 years ago

How do you know that the decimal 2\11 repeats without end?

seropon [69]

It doesn't, it ends after 32 digits after 0.

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3 years ago

A coral reef grew 3000 millimeters taller. How much did it grow in meters?

ANTONII [103]

3 meters equals 3000 mm

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2 years ago