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ratelena [41]
3 years ago
11

Find the measure of a.

Mathematics
1 answer:
Lilit [14]3 years ago
6 0

Answer:

70 degrees.

Step-by-step explanation:

The angle d is equal to the 20 degree angle, and a + d = 90 degrees. So if d is 20 degrees, then you would subtract 20 from 90 (90-20), which equals 70, giving you the final answer.

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Megan has read 45% of her 382 page novel. how many pages has she read?
KiRa [710]

Answer:

171.9 pages

Step-by-step explanation:

45%         x

------   =  -------

100        382

45 x 382 = 17190      100 · x = 100x

17190 ÷ 100x = 171.9 = x

7 0
3 years ago
ZA and ZB are complementary angles. If m A = (x – 21)° and m
pogonyaev

Answer:

A = 21

Step-by-step explanation:

Complementary angles add to 90

x-21 + 2x-15 = 90

Combine like terms

3x -36 = 90

3x-36+36 = 90+36

3x = 126

Divide by 3

3x/3 =126/3

x = 42

We want to find ZA = x-21

A = 42-21

A = 21

7 0
3 years ago
Read 2 more answers
|x-5|&lt;20<br> What is the solution
postnew [5]
Your solution would be x<25
7 0
4 years ago
Read 2 more answers
Help would be much appreciated
stepladder [879]

Answer:

a-He answered less than half of the questions because half is 50%

b-45%=45/100=9/20

Step-by-step explanation:


7 0
4 years ago
What is the value of x in x = inverse of sine (negative one-half)?
Ede4ka [16]

Answer:

-pi over 6 or B.

Step-by-step explanation:

I plugged it into desmos and this is what I got

8 0
3 years ago
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