3 years ago

Select all the true statements.

Mathematics

2 answers:

butalik [34]3 years ago

7 0

7√ is irrational because 7 is not a perfect square.

7.1234… is irrational because it is a nonterminating, nonrepeating decimal.

π is irrational because π is not a repeating decimal.

I think.

dangina [55]3 years ago

6 0

Answer:

Dont get it either im stuck on it

Step-by-step explanation:

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kakasveta [241]

Answer:

25 degrees

Step-by-step explanation:

Use a trig. ratio

$sin^{-1}$ =3/7

Plug it into a calculator

$sin^{-1}$ =25.3

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3 years ago

If C=5/9(F-32), what is F when C=20?

siniylev [52]

20 = 5 / 9(F-32)
f = 68

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Helga [31]

Answer:

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andrey2020 [161]

80% of 35 is 28 :) hope this helps!

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Please answer if you know the answer!<br><br> [Help]

Alinara [238K]

Remember that an exponent means repeated multiplication.

The exponent of 4 means you have four $\big(b^2\big)$ 's mutiplied together:

$\big(b^2\big)\cdot\big(b^2\big)\cdot\big(b^2\big)\cdot\big(b^2\big)$

And then each exponent of 2 inside means you have two $b$ 's multiplied inside each set of parentheses.:

$\big(b\cdot b\big)\cdot\big(b\cdot b\big)\cdot\big(b\cdot b\big)\cdot\big(b\cdot b\big)$

There are 8 b's there when you expand this out.

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3 years ago