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3 years ago

Which expression is equivalent to 10√5A. √500B.√105C.√50D.√15

Mathematics

1 answer:

julsineya [31]3 years ago

3 0

50 is the answer to this question

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What is the value of i^n if the remember of n/4 is 2

mestny [16]

Answer: 1

Step-by-step explanation:

If n/4 = 2, then n = 8

$i^8 = i*i*i*i*i*i*i*i\\i*i=-1\\i^8=(-1)(-1)(-1)(-1) = 1*1 = 1$

3 0

3 years ago

Please help the answer is not 59 o think

Diano4ka-milaya [45]

Answer:

the answer is 59

Step-by-step explanation:

8 0

3 years ago

1) A school has 1600 students and they are going to vote as to whether they will completely convert the school completely off fo

fredd [130]

Answer:

Standard deviation of the students = 0.408

The students would you have to poll to be 95% confident of the outcome within /- 2% of the vote

= 0.408 X 1600

= 652.8

Step-by-step explanation:

<u><em>Step(i):</em></u>-

Given sample size 'n' = 1600

95% confidence interval of the margin error is determined by

$M.E = \frac{Z_{0.05} S.D}{\sqrt{n} }$

Level of significance = 0.05

Z₀.₀₅ = 1.96

Given Margin of error = 2% = 0.02

$M.E = \frac{Z_{0.05} S.D}{\sqrt{n} }$

$0.02 = \frac{1.96 X S.D}{\sqrt{1600} }$

0.02 X √1600 = 1.96 X S.D

$S.D = \frac{0.02X\sqrt{1600} }{1.96} = 0.408$

Standard deviation of the students = 0.408

The students would you have to poll to be 95% confident of the outcome within /- 2% of the vote

= 0.408 X 1600

= 652.8

5 0

3 years ago

What is 2x - y = last question

Elza [17]

Answer:

Step-by-step explanation:

Let's simplify step-by-step.

2x−y

There are no like terms.

Answer:

=2x−y

8 0

3 years ago

Read 2 more answers

3. What is the solution to the equation 3x = 15? Express the

ivanzaharov [21]

Answer:

x=2.4650

Step-by-step explanation:

I assume that you mean $3^x=15$

so let s use the ln() function

$ln(3^x)= xln(3)=ln(15)$

so x = ln(15)/ln(3)

x = 2.4650

4 0

3 years ago