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2 years ago

I need advice on this answer not good at math

Mathematics

2 answers:

Temka [501]2 years ago

5 0

Answer:

A rational number is defined as a number that can be written as a fraction and a number that terminates.

An irrational number is defined as a number that can't be written as a fraction and a number that has no end.

Step-by-step explanation:

4/7 is irrational because, in decimal form, it is 0.57142857...

Square root of 30 is also irrational because the square root is 5.47722557...

21 divided by square root of 4 is rational because square root of 4 is 2 and 21 divided 2 is 10.5.

pi is irrational because, in decimal form, it is 3.14159265....

-27 is also rational because it terminates

madreJ [45]2 years ago

5 0

Answer:

4/7 rational, Sq root 30 irrational, 21/Sq root 4 rational, pi irrational, -27 irrational

Step-by-step explanation:

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Help me pls! I’m struggling!

sukhopar [10]

$30 {t}^{2} {v}^{5} + 12 {t}^{2} {v}^{7}$

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2 years ago

Sebastian wants to create a right triangle with side lengths 14 inches, 48 inches, and 5

allochka39001 [22]

Answer: Choice A

$\text{Yes, because } 14^2+48^2 \text{ is equal to } 50^2$

=======================================================

Explanation:

The pythagorean theorem is $a^2+b^2 = c^2$

The value of c is always the longest side, aka hypotenuse.

The order of 'a' and b doesn't matter.

So a = 14, b = 48, c = 50

We have $a^2+b^2 = 14^2+48^2 = 196+2304 = 2500$

We also have $c^2 = 50^2 = 2500$

Both sides result in 2500 which proves that $14^2+48^2 = 50^2$ is a true statement. Therefore, we do have a right triangle.

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2 years ago

Divide. 0.0075 ÷ (1.5 x 10−6) write your answer in scientific notation.

Alborosie

0.0075 ÷ (1.5 x 10^-6) = (7.5 x 10^-3) ÷ (1.5 x 10^-6) = (7.5 ÷ 1.5) x (10^(-3 - (-6))) = 5 x 10^(-3 + 6) = 5 x 10^3

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3 years ago

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andre [41]

Answer: ?

Step-by-step explanation:

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2 years ago

What is the average rate of change between:<br> x=1 and x=2<br> x=2 and x=3<br> x=3 and x=4

kogti [31]

I’m pretty sure the average rate of change is 1

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3 years ago

I need advice on this answer not good at math​

I need advice on this answer not good at math