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postnew [5]
3 years ago
8

Which pair of ratios forms a proportion?

Mathematics
1 answer:
tatiyna3 years ago
5 0
B )5 15 ;9 27 its proportion
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If the measure of an angle is 38 degrees, find the measure of its complement.
Norma-Jean [14]
Answer: 52 degrees

Explanation:
For this problem, we must know that the complement of an angle is the measure of which will make a 90 degree sum.

So in this problem we simply solve the equation as follows:

38 + x = 90
x = 90 - 38
x = 52

Hence the complement of 38 is 52.

Cheers.
6 0
1 year ago
A banner is made of 8 equel parts five of the parts are green three of the parts are yellow
irga5000 [103]

Your question is...?

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2 years ago
One side of a rectangle is five times as long as the other side. If the perimeter is 72 meters, what is the length of the shorte
Yakvenalex [24]
6 meters

72 = x+x+5x+5x
72 = 12x
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the shorter side is 6 meters
3 0
3 years ago
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Determine whether the sampling method described below appears to be sound or is flawed. In a survey of 511 human resource​ pro
Inessa [10]

Answer:

c) it appears to be sound because the data are not biased in anyway.

Step-by-step explanation:

From the information given regarding the sample selection method , the size, the larger sample from which the survey subject were selected, we can conclude that the data is sound and not in anyway biased. The subject were selected from a reputable market research firm, which means the subjects were chosen from a larger sample which is reliable and not just a voluntary pool of subjects. Also, the selection process is randomized. Based on these, there are no flaws which are likely to cause the introduction of bias into the sample selected. Hence, the data is sound and not in any way biased.

8 0
3 years ago
Why do you multiply by a power of 10 when writing a repeating decimal as a rational number
stira [4]
1.28 = 128 * 10^-2

128 * (1/10^2)

128 / 10^2

128 / 100

1.28


Because, it's literally the same thing mathematically if you worked it out. Though, as I'm sure you're aware, it's just a much shorter and cleaner way of writing out large or small numbers.
8 0
3 years ago
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