3 years ago

Please help me i rly need this

1 answer:

8 0

The answer is B because the first number in those points don’t repeat but all the other ones have the first number repeating

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Solve: 4x^2 + 3X - 8 = 0 please and thank you!!

grigory [225]

4x÷2+3x-8=0
2x+3x-8=0
5x-8=0
5x=8
x=8/5
or
x 1 3/5=1.6

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4 years ago

There are 5 choices for each of 6 multiple choice questions on a quiz. How many outcomes are there

Contact [7]

Answer:

I think 30

Step-by-step explanation:

Because 5 times 6 is 30

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3 years ago

Math Help Can you help me 4d+6=42

Yanka [14]

4d=42-6
4d=36
d=36:4=9
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3 years ago

Read 2 more answers

A simple random sample of items resulted in a sample mean of . The population standard deviation is . a. Compute the confidence

damaskus [11]

Answer:

Following are the solution to this question

Step-by-step explanation:

Please find the complete question in the attached file.

In point a:

$a=0.05 \\\\| Z(0.025)|= 1.96 \text{(check in normal table)} \\\\ 95 \% \ CI \\\\\bar x \pm \ Z \times \frac{s}{\sqrt{n}}\\\\\to 80 \pm 1.96 \times \frac{15}{\sqrt{60}} \\\\\to (76.20448, 83.79552)$

In point b:

$95 \% \ CI \ is \\\\ \bar x \pm Z \times \frac{s}{\sqrt{n}}\\\\\to 80 \pm 1.96 \times \frac {15}{\sqrt{120}}\\\\\to (77.31616, 82.68384)$

In point c:

A large sample is a smaller error margin.

8 0

3 years ago

Fill in the blank: 5/7 of ... is 1/7

Sveta_85 [38]

5/49

Hope this helps!! :)

4 0

3 years ago