3 years ago

Simplify 3√-1000 and 3√g6h30

Mathematics

1 answer:

aliya0001 [1]3 years ago

6 0

Answer:

$\sqrt[ ]{1000}$

Step-by-step explanation:

$3 \sqrt{ - 1000} = 3 \sqrt{1000i {}^{2} } \\ = 3 \times 10i \\ = 30i \\ (in \: complex \: form \: i {}^{2} = - 1)$

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In a right triangle, CosA=0.352 and SinA=0.936 What is the approximate value of tanA?

mr_godi [17]

$\tan A=\frac{\sin A}{\cos A}$

Proof: $\sin\div\cos=\frac{o}h\div\frac{a}h=\frac{o}h\times\frac{h}a=\frac{oh}{ha}=\frac{o}a=\tan$

$\cos A=0.352,\ \sin A=0.936$

$\tan A=\frac{0.936}{0.352}$

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Llana [10]

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James earned $39,600 last year. He paid $11,250 towards rent and $1,422 in car payments. What percent of his earnings did Jon pa

tester [92]

Step 1:
Add rent & car payments

=11,250+1422
=$12,672

Step 2:
to determine %, set up a proportion
12,672 is to his total of 39,600 as x is to 100

12,672/39,600 = x/100
cross multiply
(12,672)(100) = (39,600)(x)
1,267,200= 39,600x
divide both sides by 39,600
32%= x

OR

Alternative Step 2:
12,672 ÷ 39,600= 0.32
Alternative Step 3:
0.32 x 100 = 32%
or move decimal to the right 2 places

His rent and car payments are 32% of his earnings.

Hope this helps! :)

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3 years ago

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<img src="https://tex.z-dn.net/?f=%20%5Csqrt%7B7%20%7B%7D%5E%7B7%7D%20%7D" id="TexFormula1" title=" \sqrt{7 {}^{7} }" alt=" \sqr

Mrrafil [7]

Answer:

$\boxed{\tt\blue{=343\sqrt{7}}}$