3 years ago

Express 8 square roots of -65 in terms of i

Mathematics

1 answer:

coldgirl [10]3 years ago

7 0

$8\sqrt{-65}=8\sqrt{65\cdot(-1)}=8\sqrt{65}\cdot\sqrt{-1}=8\sqrt{65}\ i$

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Rebecca answered 42 of 60 questions correctly on a test which method should he she used to find the percent of question she answ

MakcuM [25]

She answered 70% questions correctly

Further explanation:

Percetages are used to calculae the success or failure in tests or exams usually.

Given

$Total\ questions= 60\\The\ questions\ attempted\ correctly=42$

The percentage will be calculated as follows:

$Percentage\ of\ correctly\ answered\ questions=\frac{Correct\ questions}{Total\ questions}*100\\= \frac{42}{60}*100\\=70\%$

She answered 70% questions correctly

Keywords: Percentage, Success rate

Learn more about percentage at:

#LearnwithBrainly

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Which of the following represent 18=6×3

mestny [16]

C would be the correct answer

A would mean that 6=3*18, which is incorrect
B would mean that 3=6*18 which is also incorrect
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D would mean that 18=6*2 which is also incorrect

Therefore, C would be the correct answer

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4 years ago

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5 thousand is ———————- times as many as 5 hundred

Lapatulllka [165]

Answer:

Ten

Step-by-step explanation:

5000/500 = 10

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3 years ago

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