3 years ago

Write a sentence to explain what a cube root of a number means.

Mathematics

1 answer:

svetlana [45]3 years ago

5 0

Answer:

The cube root of a number is a special value that when used in a multiplication three times it gives that number.

Step-by-step explanation:

Example:

3 x 3 x 3

9 x 3 = 27

$3^{3}$

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Please help again! Same thing!

cestrela7 [59]

Answer:

a = - 3, b = 5

Step-by-step explanation:

To rationalise the denominator multiply the numerator/ denominator by $\sqrt{2}$

= $\frac{\sqrt{2}(10-\sqrt{18}) }{(\sqrt{2})^2 }$

= $\frac{10\sqrt{2}-\sqrt{36} }{2}$

= $\frac{10\sqrt{2}-6 }{2}$

= 5 $\sqrt{2}$ - 3

= - 3 + 5 $\sqrt{2}$ ← in the form a + b $\sqrt{2}$

with a = - 3 and b = 5

7 0

3 years ago

What is this percent of change 40;72

salantis [7]

Given:
Original or base : 40
New amount : 72

We need to find the difference of the new amount and the original amount

72 - 40 = 32

We then divide the difference by the original amount

32/40 = 0.80

We multiply the quotient by 100%

0.80 x 100% = 80%

The percentage of change is 80%

6 0

4 years ago

Five percent is the same as 1:20?

disa [49]

No, The answer is 120% and 0.5% = 0.05

Hope this helped!

BTW can I have brainliest

6 0

3 years ago

Fine the value of X

makvit [3.9K]

Answer: