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harina [27]
3 years ago
10

Simplify the expression. 9r 3r2 – 5r 7

Mathematics
2 answers:
Ksenya-84 [330]3 years ago
7 0
Your final answer is going to be 4r + 3r ^2 +7
Tpy6a [65]3 years ago
5 0

For this case we have the following expression:

9r + 3r ^ 2 - 5r + 7

We must simplify the expression.

To do this, we combine similar terms.

We have then:

3r ^ 2 + 9r - 5r + 7

Rewriting we have:

3r ^ 2 + 4r + 7

Answer:

The simplified expression is given by:

3r ^ 2 + 4r + 7

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Answer:

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Step-by-step explanation:

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3 years ago
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The jones family and the Connor family both bought the same boxed package of sugar cubes at the store, in which the cubes were a
ivann1987 [24]

The number of sugar cubes in the box is 180

<h3>How to determine the number of sugar cubes?</h3>

The given parameters are:

  • Layers = 5
  • Pieces = 2 or 3
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Multiply 61 and 88 by 2 and 3

61 * 2 = 122

61 * 3 = 183

88 * 2 = 176

88 * 3 = 264

The number of sugar cubes cannot be 122 and 264, because they are out of the range

So, we have:

183 and 176

There are 5 layers.

This means that the number of sugar cubes is divisible by 5.

The only number between 176 and 183 that is divisible by 5 is 180

Hence, the number of sugar cubes is 180

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2 years ago
A random number from 1 to 5 is selected
shutvik [7]

Answer:

Relative frequency of selecting a 2 = 8/50 = 0.16

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Step-by-step explanation:

When we have a given experiment with given outcomes (such that each time that we perform the experiment, one outcome happens) the relative frequency of a given outcome is the quotient between the number of times that that outcome happened, and the total number of times that the experiment was performed.

Here the experiment is selecting a random number between 1 and 5, and it is performed 50 times.

Out of these 50 times, the outcome "2" appears 8 times.

Then the relative frequency of selecting the number 2 is:

f(2) = 8/50 = 0.16

And of these 50 experiments, the outcome "3" appears 14 times.

Then the relative frequency of selecting the number 3 is:

f(3) = 14/50  = 0.28

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Step-by-step explanation:

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