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puteri [66]
3 years ago
14

The ratio of two complementary angles is 5:4. Find the measure of both angles.

Mathematics
2 answers:
grandymaker [24]3 years ago
7 0

Answer:

50 degrees and 40 degrees

Step-by-step explanation:

50 degrees and 40 degrees

complimentary = add up to 90 degrees

5:4:9

50:40:90

Paha777 [63]3 years ago
6 0

Answer:

50° and 40°

Step-by-step explanation:

Complementary angles sum to 90°

sum the parts of the ratio, 5 + 5 = 9 parts

divide 90 by 9 for the value of one part of the ratio

90° ÷ 9 = 10° ← value of 1 part of the ratio, thus

5 parts = 5 × 10° = 50°

4 parts = 4 × 10° = 40°

The 2 angles are 50° and 40°

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3 years ago
Find y.<br> 30<br> 20 <br> Need help asap
Neporo4naja [7]

Answer:

y = 10

Step-by-step explanation:

Using the sine ratio in the right triangle and the exact value

sin30° = \frac{1}{2} , then

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7 0
2 years ago
What is the simplified form of the following expression? 8ab/-4b
kondaur [170]

-2a

Step-by-step explanation:

steps:1. first write the question again : 8ab/-4b

2.first 8 divide by -4=-2

3.write ' a' with -2because u don't have another 'a' down belowso that u can pair it up and cancel

so: -2a.

4. cancel 'b' on top and 'b' at the bottom.

3 0
3 years ago
If f(y) = 2y - 2/5,<br> what is f(f^-1(1024))?
SCORPION-xisa [38]

Answer:

-0.399

Step-by-step explanation:

f^-1(1024)=(2*1024-2/5)^-1= 0.000488

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3 years ago
What is a 40% decrease of 85?
Andrews [41]
40% of 85 is 34 so 85-34=51

51 is your answer

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3 years ago
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