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natta225 [31]
2 years ago
7

HELP PLEASEEE YOULL GET 15 POINTS

Mathematics
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

7 0
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.

5 0
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
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