3 years ago

Question 1

Mathematics

1 answer:

Sphinxa [80]3 years ago

8 0

Answer:

Step-by-step explanation:

x^3• x^3•x^3

We add the exponents

x^(3+3+3) = x^9

x^3•3•3 x^3 *9

9x^3

These are not equal unless

x^9 = 9x^3

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A political candidate has asked his/her assistant to conduct a poll to determine the percentage of people in the community that

Delvig [45]

Answer: The size of sample of 193 is needed.

Step-by-step explanation:

Since we have given that

Margin of error = 6%

At 90% confidence level, z = 1.645

Let p = 0.5

and q = 0.5

( because it is the most conservative estimation).

So, using formula, we get :

$e=z\times \sqrt{\dfrac{p(1-p)}{n}}\\\\0.06= 1.645\times \sqrt{\dfrac{0.5\times 0.5}{n}}\\\\\dfrac{0.06}{1.645}=\sqrt{\dfrac{0.25}{n}}\\\\(0.036)^2=\dfrac{0.25}{n}\\\\n=\dfrac{0.25}{0.036^2}\\\\n=192.9\\\\n=193$

Hence, the size of sample of 193 is needed.

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3 years ago

Please help, theres a picture

kiruha [24]

Answer:

I think it is y equals to 15x

3 0

3 years ago

Read 2 more answers

A + 6.6 = 12.6 helpp please !

marysya [2.9K]

$a + 6.6 = 12.6 \\ a = 12.6 - 6.6 \\ a = 6.0$

3 0

2 years ago

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Aneli [31]

Answer:

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6 0

3 years ago

Jude incorrectly simplified the expression (1/2)^2 ● (1/2)^1 ● (1/2)^3 as shown below: (1/2)^2 ● (1/2)^1 ● (1/2)^3 = (1/8)^6 = 1

RUDIKE [14]

Answer:

im not sure

Step-by-step explanation:

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3 years ago