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Rzqust [24]
3 years ago
8

The measure of angel a is one half the measure of angle c. The measure of angle B is 90 find the measure of angel a

Mathematics
1 answer:
rosijanka [135]3 years ago
7 0

Note: This is the answer if you are talking about a triangle because you didn't specify that.

A=30°

I'm going to assume this is a triangle so if I'm wrong tell me in the comments. If it is a triangle all the angles should add up to 180 degrees. We already know that one is 90 so the other two angles have to add up to 90 (since 90+90=180). C is twice as much as A. So 1/3 of 90 is A and 2/3 of 90 is C. <em>A would be 30°</em>. In summary A=30° B=90° C=60°. Hopefully I understood your question correctly and this helped you. Also sorry it took a while to answer.

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Can anybody please help me out with this question I would really appreciate it so much. Please and thank you .
PolarNik [594]

(7x+2)° = (9x–8)°

=>7x –9x = –8–2

=> –2x = –10

=> x = 10/2

=> x = 5

<ADB = (7x+2)°

= 7×5+2

= 37°

<BDC = (9x–8)°

= 9×5–8

= 45 –8

= 37°

<ADC = 37° + 37°

= 74°

8 0
3 years ago
The coffee cups can hold 7/9 of a pint of liquid. If Emily puts 2/3 of s pint of coffee into a cup, how much milk can a customer
Bezzdna [24]

1/9 pints of milk can be added by a customer

Step-by-step explanation:

We have to subtract simple fractions to find the amount of milk that can be added to a cup of coffee

Given

Total Capacity of a cup = 7/9 pints

Coffee to be added in a cup = 2/3 pints

So in order to find the amount of milk that can be added we have to subtract the amount of coffee from the total capacity of cup.

So,

Amount\ of\ milk = \frac{7}{9} - \frac{2}{3}\\=\frac{7-6}{9} = \frac{1}{9}

Hence,

1/9 pints of milk can be added by a customer

Keywords: Fractions, addition

Learn more about fractions at:

  • brainly.com/question/12943520
  • brainly.com/question/12960754

#LearnwithBrainly

7 0
3 years ago
Evaluate 12. ( 4^-2/4^-4) <br> A 1/4 <br> B 3/4<br> C 16 <br> D 192
alisha [4.7K]

Answer:

16

Step-by-step explanation:

4^{-2} /4^{-4}\\=0.0625/0.0039\\=16

4 0
3 years ago
Read 2 more answers
Hey mathematicians ! Can anyone help me with these problems please ! Will give brainly !
satela [25.4K]

Answer:

77) YES , 78) YES , 79) NO , 80) YES

Step-by-step explanation:

77) 12/4=3 and 18/6=3 so YES

78) 30/6=5 and 40/8=5 so YES

79) 36/25=1.44 and 48/40=1.2 so NO

80) 15/5=3 and 13.8/4.6=3 so YES

7 0
2 years ago
The answer would be “Yes” right? Just double checking :)
elena-14-01-66 [18.8K]

Answer:

yes

Step-by-step explanation:

its correct because opposite sides are parallel

7 0
3 years ago
Read 2 more answers
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