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andreyandreev [35.5K]
3 years ago
14

Because ?ABC and ?CBD both have a right angle, and the same angle B is in both triangles, the triangles must be similar by AA. L

ikewise, ?ABC and ?ACD both have a right angle, and the same angle A is in both triangles, so they also must be similar by AA. The proportions and are true because they are ratios of corresponding parts of similar triangles. The two proportions can be rewritten as a2 = cf and b2 = ce. Adding b2 to both sides of first equation, a2 = cf, results in the equation a2 + b2 = cf + b2. Because b2 and ce are equal, ce can be substituted into the right side of the equation for b2, resulting in the equation a2 + b2 = cf + ce. Applying the converse of the distributive property results in the equation a2 + b2 = c(f + e). Which is the last sentence of the proof?
Mathematics
1 answer:
gavmur [86]3 years ago
3 0

Answer:

C i took that test unless u have to write it out

Step-by-step explanation:

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M=7,r=8, t=2 ; mr/t = what
galina1969 [7]

Answer:

28

Step-by-step explanation:

Plug in the corresponding numbers to the corresponding variables. Note that:

m = 7

r = 8

t = 2

mr/t = (7 * 8)/2

(7 * (8/2)) = 7 * 4 = 28

28 is your answer.

~

4 0
3 years ago
Find the mean of 12 ,10,12,14,8,15,8,9,6,5​
il63 [147K]

Answer:9.9

Step-by-step explanation:

Add up the scores and dividing the total by the number of scores.

5 0
2 years ago
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$ 65 is marked up to $70.20
olganol [36]
You can work out the difference between the numbers by taking the smaller one away from the larger one:
70.20 - 65 = 5.20

Then you can divide the difference (5.20) by the original number (65) to get how many percent it is of 65 in decimal form:
5.20/65 = 0.08

Then you can times it by 100, to get the percentage:
0.08 * 100 = 8%

This means there was a 8% price increase in $65 to get to $70.20

Hope this helps! :)
5 0
3 years ago
A town has a population of 17000 and grows at 3% every year. What will be the population after 7 years, to the nearest whole num
Pepsi [2]

Answer:

122570


(17000*1.03)7


4 0
3 years ago
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9) True or False: Great Britain officially recognized the Confederate States of America
SpyIntel [72]

It legally recognised the belligerent status of the Confederate States of America (CSA) but never recognised it as a nation and neither signed a treaty with it nor ever exchanged ambassadors.

And i could tell that its not math... :)

Its False

6 0
3 years ago
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