3 years ago

Help please. Can't figure this out .

Mathematics

1 answer:

Law Incorporation [45]3 years ago

3 0

How Many More
Sub Trac Tion

Your answer is A) 18

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Q2. a) Is the equality √a^4 = a valid for all values of a? Explain.

allochka39001 [22]

Answer:

The equality is only true for $a = 0\ and\ 1$ , not for all values

Step-by-step explanation:

Given

$(\sqrt a)^4 = a$

Required

Determine if it is valid

$(\sqrt a)^4 = a$

Evaluate the exponent

$(a^\frac{1}{2})^4 = a$

$a^\frac{1*4}{2} = a$

$a^2 = a$

Rewrite as:

$a^2 - a = 0$

Factorize

$a(a- 1) = 0$

$a =0\ or\ a - 1 = 0$

$a =0\ or\ a = 1$

The equality is only true for  $a = 0\ and\ 1$ , not for all values

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Answer:

F or H

Step-by-step explanation:

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If you flip a coin 4 times, what is the best prediction possible for the number of times it will land on tails?

allochka39001 [22]

Answer:

Step-by-step explanation:

Each time you flip a coin, there is a 50% change of it landing on tails. So half the time you should get a tails.

Half of 4 is 2, so you will likely get 2 tails.

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Pennelli Road her bike 1.5 KM how many meters did she ride her bike

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Step-by-step explanation:

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allochka39001 [22]

Answer:

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Step-by-step explanation:

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