3 years ago

Can someone help me with this math!

Mathematics

1 answer:

Angelina_Jolie [31]3 years ago

3 0

Answer:

Step-by-step explanation:

((100-25)/100)× 60 is the correct answer

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Zigmanuir [339]

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A set S of strings of characters is defined recursively by 1. a and b belong to S. 2. If x belongs to S, so does xb. Which of th

alukav5142 [94]

Answer:

a) a

b) ab

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Step-by-step explanation:

We are given the following in the question:

$a, b \in S$

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a) a

It is given that $a \in S$

b) ab

$\text{If }a \in S\\\Rightarrow ab \in S$

Thus, ab belongs to S.

c) aba

This does not belong to S because we cannot find x for which xb belongs to S.

d) aaab

This does not belong to S because we cannot find x for which xb belongs to S.

e) bbbbb

$\text{If }b \in S\Rightarrow bb \in S\\\text{If }bb \in S\Rightarrow bbb \in S\\\text{If }bbb \in S\Rightarrow bbbb \in S\\\text{If }bbbb \in S\Rightarrow bbbbb \in S$

Thus, bbbbb belongs to S.

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In a group of 26 children, there were 12 girls. Which is the ratio of girls to boys in simplest form?

SVETLANKA909090 [29]

26 - 12 = 14 boys

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What is the zero for 2x2-7=4

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2x^2-7=4
subtract 4 from both sdies
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therefor
2x^2=11
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square root both sdies
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The answer is 76
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