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Serhud [2]
3 years ago
8

NEED HELP SOON!!!! for any numbers a, b, and c, a(b + c)=ab+ac

Mathematics
1 answer:
navik [9.2K]3 years ago
6 0

The property displayed here is the distributive property.

If you have a variable or unknown number inside or outside of parentheses, you can distribute it to each term and add the terms together, and it will remain true.

Example:

4(x + 5)

After distributing, it'll look like this:

4x + 20


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The office of student services at a large western state university maintains information on the study habits of its full-time st
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A suitable probability calculator can tell you the probability is about 6.7%.


_____

The standard deviation of the distribution of sample means is the population standard deviation (6) divided by the square root of the sample size (√144=12). Thus, your threshold is about (19.25-20)/(6/12) = -1.5 standard deviations from the mean.

4 0
3 years ago
The sum of two numbers is 27. The larger number is 6 more than twice the smaller number. What are the numbers?
yawa3891 [41]

Answer:

Let the smaller number be x

Then the sum is

(6 + 2x) + x = 27

We now find for x

2x + x + 6 = 27

3x + 6 = 27

3x = 27-6

3x = 21

x = 21/3

x = 7

Therefore the smaller number is 7

The larger number is (2×7) + 6 = 20

6 0
3 years ago
In triangle ABC, angle A is congruent to angle C, AB= 10x-7, BC= 2x+33 And AC= 4x-6. Find x
Zina [86]

Since <A is congruent to <C , so triangle ABC is an isoceles triangle and side AB is congruent to BC.

AB = BC

Therefore, we can set up an equation as following:

10x - 7 = 2x + 33

10x - 7 - 2x = 2x + 33 -2x Subtracting 2x from each sides.

8x -7 = 33

8x - 7 + 7 = 33 + 7 Add 7 to each sides.

8x = 40

\frac{8x}{8} =\frac{40}{8} Divide each sides by 40.

So, x = 5

6 0
3 years ago
K-3&gt;4 can you get it
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Answer:

10-(k+5) = 3(k+2)


8 0
3 years ago
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