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1 year ago

Multiply. Do not round your answer. 9.2 x 14.71 =

Mathematics

1 answer:

Rzqust [24]1 year ago

7 0

135.33 I didn’t round

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Identify the sample as biased or unbiased and describe its type. John wanted to know about the popularity of a particular movie.

I am Lyosha [343]

Answer: unbiased; simple random sampling

Step-by-step explanation:

From the question, we are informed that John wanted to know about the popularity of a particular movie and that he surveyed 20% of the people in 5 different theaters.

This is an unbiased sample. This is because everybody at the theaters have an equal chance of being chosen by John.

Also, it's a simple random sampling. This is because a subset of the entire population is randomly selected.

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3 years ago

Dan bought 4 kilograms of dog food.

Nitella [24]

Since a kilogram is 1000 grams, 4*1000=4000 kilograms, which is your answer

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2 years ago

Please help with this question!! I need serious help!!

asambeis [7]

Answer:

<h2>The circumference is multipled by 4.</h2>

Step-by-step explanation:

The formula of an area of a circle"

$A=\pi r^2$

The formula of a circumference of a circle:

$C=2\pi r$

The area multipled by 16:

$16A=16\pi r^2\\\\16A=\pi(4^2r^2)\\\\16A=\pi(4r)^2$

The radius has increased fourfold, therefore:

$C'=2\pi(4r)=4(2\pi r)=4C$

The circumference is multipled by 4.

You can calculate the area and check the circumference:

$r=11.6\ in\\\\A=\pi(11.6)^2=132.56\pi\\\\16A=(16)(134.56\pi)=2152.96\pi\ in^2$

Calculate the radius:

$\pi r^2=2152.96\pi$ <em>divide both sides by π</em>

$r^2=2152.96\to r=\sqrt{2152.96}\\\\r=46.4\ in$

Calculate the circumference of both circles:

$r=11.6\ in\\\\C=2\pi(11.6)=23.2\pi\ in$

$r=46.4\ in\\\\C'=2\pi(46.4)=92.8\pi\ in$

$\dfrac{C'}{C}=\dfrac{92.8\pi}{23.2\pi}=4\to C'=4C$

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2 years ago

DUE IN 10 MINUTES. PLEASE HELP. WOULD BE VERY THANKFUL

Andrej [43]

Answer:

1. y = 36°

a = 9.7

2. No.. wire H to P/Q is not a tangent

Step-by-step explanation:

see below

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2 years ago

Find the equation of the straight line which passes through (3,5) and makes y-inte<br>r-intercept.

elixir [45]

Answer:

Please restate your question.

It needs the y-intercept to be decipherable.

Step-by-step explanation:

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2 years ago