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3 years ago

Please solve this with explanation

Mathematics

1 answer:

SpyIntel [72]3 years ago

5 0

Answer:

-27/8

Step-by-step explanation:

just times than the power -3

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write each of the numbers 1,8,27, and 125 as a base raised to the 3rd power. 1= [ ]³ 8= [ ]³ 27= [ ]³ 64= [ ]³ 125= [ ]³

Aloiza [94]

1=1^3
8=2^3
27=3^3
64=4^3
125=5^3

These are all perfect cubes. 1^3 is the same as 1*1*1. The question is asking you to find which number, when multiplied by itself 3 times results in the given number.

5 0

3 years ago

Read 2 more answers

What is the solution to the system of equations

vitfil [10]

Answer:

Step-by-step explanation:

Hello

I believe there is an error in the question

we have two equations and need to find x and y

$(1) \dfrac{1}{4}x+\dfrac{1}{2}y=\dfrac{5}{8}\\(2) \dfrac{3}{4}x-\dfrac{1}{2}y=3\dfrac{3}{8}$

let s multiply by 8 so that we can get rid of the fractions

(1) becomes 2x+4y=5

(2) becomse 6x-4y=9

if we sum it gives

2x+4y+6x-4y=9+5

8x=14

x = 14/8 = 7/4

and then from the first equation

4y = 5 - 7/4

<=> 16y = 20-7 = 13

y = 13/16

the solutions is (7/4,13/16)

5 0

3 years ago

\root(3)(-3)\root(3)(-5)=\root(3)(15) true or false

Oksi-84 [34.3K]

The equation $\sqrt[3]{-3} \cdot \sqrt[3]{-5} = \sqrt[3]{15}$ is true

<h3>How to determine the true statement?</h3>

The equation is given as

$\sqrt[3]{-3} \cdot \sqrt[3]{-5} = \sqrt[3]{15}$

Apply the law of indices

$\sqrt[3]{-3 * -5} = \sqrt[3]{15}$

Evaluate the product

$\sqrt[3]{15} = \sqrt[3]{15}$

Both sides of the equation are the same

Hence, the equation $\sqrt[3]{-3} \cdot \sqrt[3]{-5} = \sqrt[3]{15}$ is true