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3 years ago

Which expression results from using the Distributive Property to rewrite -9.1 (−4) − 9.1 (12)?

Mathematics

1 answer:

swat323 years ago

6 0

For this case we have that by definition, distributive property is defined as:

$a (b + c) = ab + ac$

We have the following expression:

$-9.1 (-4) -9.1 (12)$

Taking common factor -9.1 we have:

$-9.1 (-4 + 12)$

Thus, the correct option is option B.

Answer:

Option B

$-9.1 (-4 + 12)$

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The front of a tent is an equilateral triangle with the ratio of its base, b, to its height, h, given by b/h=2/√ 3 . Which equat

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Picturing the tent helps, but we can actually solve this question using simple algebra and no knowledge of triangles.
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3 years ago

If you have 5 apples on 1 branch how many are there on 5 branches?

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3 years ago

Read 2 more answers

Idk wat to do.....<br>........

oksano4ka [1.4K]

Answer:

Mean : 95

Median : 85

Mode : 90

Part B : Impossible

Step-by-step explanation:

We can make an equation to find the mean using the first 5 history test scores.

$85=\frac{80+75+90+75+95+n}{6} \\ \\ 85=\frac{415+n}{6} \\ \\ 510=415+n \\ \\ n=95$

So a 95 would be needed to have a mean of 85.

Next, the median.

First, we sort the first 5 history scores from least to greatest.

We get 75, 75, 80, 90, 95.

Since, 80 is the middle value, it will be used in the calculation of the median.

We can make an equation with this.

$82.5=\frac{80+n}{2} \\ \\ 165=80+n \\ \\ n=85$

So a score a 85 would be needed to have a median of 82.5

Thirdly, the mode.

Since 90 is already in the set once, we can just have Maliah score another 90 to make 90 the mode (with the exception of 75 of course).

Finally, Part B.

We can use the equation we had for the first mean calculation but change 85 to 90.

$90=\frac{80+75+90+75+95+n}{6} \\ \\ 90=\frac{415+n}{6} \\ \\ 540=415+n \\ \\ n=125$

So Maliah would need a score of 125 to make her mean score 90, but since the range is only from 0-100, it is impossible.

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3 years ago

A die is rolled. What is the probability of getting an even number?

balandron [24]

Answer:

I wanna say 1/3 because there 3 even numbers on a dice

Step-by-step explanation:

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3 years ago