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pav-90 [236]
3 years ago
8

I don’t get how you get a and b

Mathematics
1 answer:
Alisiya [41]3 years ago
6 0


For this question, you will now need to solve for both a and b, you can break down the expression that they want you to find:

(a^2-b^2)/(a-b)
= (a+b)(a-b)/(a-b) (Difference of squares)
= a+b (The (a-b) is common at the top and bottom so they will cancel

Now a+b =
Therefore the answer is (C)
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How to i solve number 9
Katyanochek1 [597]

Answer: the answer is B. 90√2


Step-by-step explanation:

It is a 45 45 90 triangle and the hypotenuse is always the smaller side (x) root 2

Or x√2

3 0
3 years ago
Read 2 more answers
Answer this one please
Fittoniya [83]

Answer:

105 cm²

Step-by-step explanation:

We can see that the area at the square at the bottom, since one side is 5, is 5²=25. Then, we know that the height of the triangles is 8, the base is 5, and there are 4 of them, so ((5*8)/2)*4=80. Add these up to get 105 as our total

4 0
4 years ago
A beverage distributor has a facility that bottles beer. Beer bottles are supposed to be filled to 12 oz but there are slight va
-BARSIC- [3]

The associated z score for filling to 10.98 oz. is -1.16.

<h3>Z score</h3>

The z score is used to determine by how many standard deviations the raw score is above or below the mean. It is given by:

z = (x - μ) / σ

where x is the raw score, μ is the mean and σ is the standard deviation.

Given that μ = 12.01, σ = 0.89, hence:

For x = 10.98:

z = (10.98 - 12.01)/0.89 = -1.16

The associated z score for filling to 10.98 oz. is -1.16.

Find out more on Z score at: brainly.com/question/25638875

4 0
3 years ago
3(n-t) what is it?
g100num [7]
3(n-t) = 3n- 3t
It is you mean about ?
3 0
3 years ago
The length of a rectangular fenced enclosure is 12 feet more than the width. If Farmer Dan has 100 feet of fencing, write an ine
Kitty [74]
Answer:
length = 31 ft
width = 19 ft

Explanation:
Assume that the width of the rectangle is w.
We are given that the length is 12 ft more than the width. This means that the length of the rectangle is w + 12

The perimeter of the rectangle in this case would be:
perimeter = 2 (length + width)
perimeter = 2 (12 + w + w)
perimeter = 24 + 4w

Assume that Dan would use all 100 ft of fencing to surround the yard. This would mean that the largest perimeter is 100 ft.

Therefore:
perimeter = 24 + 4w
100 = 24 + 4w
4w = 100 - 24
4w = 76
w = 19 ft

Since we have calculated that the width of the yard is 19 ft, we can substitute to get the length as follows:
length = 12 + w
length = 12 + 19
length = 31 ft

Hope this helps :)
7 0
4 years ago
Read 2 more answers
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