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3 years ago

Jodie read 42 randomly chosen books from each library in her city. Each library is the same size.

Mathematics

1 answer:

ahrayia [7]3 years ago

3 0

Answer:

Yes!

Step-by-step explanation:

The definition of Representative is

A representative sample is a group or set chosen from a larger statistical population or group of factors or instances that adequately replicates the larger group according to whatever characteristic or quality is under study

so your book is whats understudy and with that you'll know that yes, yes it is

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The scale of a map is 1cm:12 km. find the actual distance for 12cm

anzhelika [568]

This is simply a question about ratios. This ratio means that for every 1 cm on the map, there are 12 km in actuality. You can set this problem up in fractions:

1 cm 12 cm
-------- = ----------
12 km x

To solve for x, we cross-multiply, for the moment ignoring units. Remember, your answer will be in km.

1*x=12*12

x=144

If x=144, then for 12 cm, there are 144 km.

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Answer:

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3 years ago

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spayn [35]

Answer:

A) f^-1(x)=(x-8)^3+2

Step-by-step explanation:

To find the function inverse, switch the x with y and solve for y.

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3 years ago

Solve the equation for a.

katrin [286]

Answer:

$a= \frac{k}{9b+4}$

Step-by-step explanation:

In this question, you would solve for "a".

Solve:

K = 4a + 9ab

Since we have our "a" on the same side, we can factor it out from the variables:

K = a(9b + 4)

To get "a" by itself, we would have to divide both sides by 9b + 4:

K/9b+ 4 = a

Your answer would be K/9b+ 4 = a

It would look like this: $a= \frac{k}{9b+4}$

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3 years ago

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What is the volume of a hemisphere with a radius of 8.8 cm, rounded to the nearest

gizmo_the_mogwai [7]

Answer:

1427.3

Step-by-step explanation

just did it, got it right, don't listen to the mf above me.

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3 years ago