3 years ago

Simplify the expression. 22+(3^2 –4^2)

Mathematics

1 answer:

Semmy [17]3 years ago

8 0

22 + (9 - 16)

31 - 16

= 15

Hope this helps

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Answer quickly please answer correctly

stira [4]

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3 years ago

PLEASE HELP!! WILL GIVE 200 POINTS PLUS BRAINLY!!!

lisov135 [29]

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3 years ago

Read 2 more answers

michael wittry has been investing inhis roth IRA retirement account for 20 years. Two years ago his account was worth $215,658.

Over [174]

Let's say

a = 215,658

ok... so.. he first lost 1/3 of that

$\bf \textit{\underline{lost} }\frac{1}{3}a\qquad \qquad a-\cfrac{1}{3}a\implies a-\cfrac{a}{3}\implies \cfrac{3a-a}{3}\implies \cfrac{2a}{3}
\\\\\\
\textit{then he \underline{gained} }\frac{1}{2}\textit{ of }\frac{2a}{3}\qquad \qquad \cfrac{2a}{3}+\cfrac{\frac{2a}{3}}{2}\implies \cfrac{\frac{2a}{3}}{\frac{2}{1}}
\\\\\\
\cfrac{2a}{3}+\cfrac{2a}{3}\cdot \cfrac{1}{2}\implies \cfrac{2a}{3}+\cfrac{2a}{6}\implies \cfrac{4a+2a}{6}
\\\\\\
\cfrac{6a}{6}\implies \boxed{a}\implies 215,658$

so, his nickname might just be even steven, because, he ended up with the same original amount after the 1/2 bump.

4 0

3 years ago

Simplify √32 + √16 + V8

Trava [24]

Answer:

4 + 6√2

Step-by-step explanation:

$\sqrt{32}+\sqrt{16}+\sqrt{8}\\\\\sqrt{(32)} +\sqrt{(16)}+\sqrt{(8)}\\\\\sqrt{(16)(2)} +\sqrt{(16)}+\sqrt{(4)(2)}\\\\\sqrt{(16)}\sqrt{(2)}+\sqrt{(16)}+\sqrt{(4)}\sqrt{(2)}\\ \\4\sqrt{(2)}\:\:\:\:\:\:\:\:\:\:+\:\:\:\:\:4\:\:\:\:\:+\:\:\:\:2\sqrt{(2)} \\\\4\:\:\:+\:\:\:6\sqrt{(2)} \\\\4\:\:\:+\:\:\:6\sqrt{2}$

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3 years ago

What is 0.407 repeating times 100

ahrayia [7]

40.7..........................

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4 years ago