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luda_lava [24]
3 years ago
7

The diagram shows corresponding lengths in two similar figures. Find the ratio of the perimeters and the ratio of the areas.

Mathematics
1 answer:
GREYUIT [131]3 years ago
7 0

15:20

divide each by 5

3:4

to find the ratio of the area's we square the ratio's of the sides

3^3 : 4^2

9:16


Choice B

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Cloud [144]
1.2 + d + 0.4 = 9.7

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6 0
3 years ago
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Suppose y= 2x - 2.5. Find x if y =10
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Hope this helps! :)

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Weights of cars passing over a bridge part 2<br>​
DaniilM [7]

Step-by-step explanation:

The solution to this problem is very much similar to your previous ones, already answered by Sqdancefan.

Given:

mean,  mu = 3550 lbs (hope I read the first five correctly, and it's not a six)

standard deviation, sigma = 870 lbs

weights are normally distributed, and assume large samples.

Probability to be estimated between W1=2800 and W2=4500 lbs.

Solution:

We calculate Z-scores for each of the limits in order to estimate probabilities from tables.

For W1 (lower limit),

Z1=(W1-mu)/sigma = (2800 - 3550)/870 = -.862069

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Therefore probability that weight is between W1 and W2 is

P( W1 < W < W2 )

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3 years ago
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Answer:

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Answer:

C AND D

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it is a rational and real number

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