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ololo11 [35]
3 years ago
9

What is the relationship between sine and cosine of an complementary angel

Mathematics
1 answer:
faust18 [17]3 years ago
4 0
The sine of any acute angle is equal to the cosine of its complement. the cosine of any angle is equal to the sine of its complement also
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Help me, please A movie theater decreased the size of its popcorn bags by 10%. If the new popcorn bags hold 18 ounces, how much
Iteru [2.4K]
Movie Theater question:

the numerical value of 10% is 0.1, just as 50% is 0.5. if you multiple 20 by 0.1 you get 2, and subtract 2 from 20 you get 18.
The answer is 20 ounces.

Savings Account question:

if you multiply 0.1 by 220 you will get 10% of 220, then just add that answer to 220. so 0.1 x 220 is 22, 22+220 is 242.
The answer is $242.00

I hope this helps :)
6 0
3 years ago
Which of the following is true?
Illusion [34]

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3 years ago
Trevor solved the system of equations below. What mistake did he make in his work?
wariber [46]

2x + y = 5

x − 2y = 10

y = 5 − 2x

x − 2(5 − 2x) = 10

x − 10 + 4x = 10

5x − 10 = 10

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<em>5x-10+10 = 10 + 10</em>

<em>5x=20</em>

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He needs to add 10 to each side

7 0
4 years ago
How many times bigger is 9x10^7 than 3x10^-2
irina [24]

Answer:

3×10^9

Step-by-step explanation:

0.03x=90,000,000

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plz mark as brainliest

3 0
3 years ago
Aubree is making pizzas for a pizza party. Each pizza requires 2/3 pound of cheese. How many pounds of cheese does she need to m
Stolb23 [73]

Answer:

10 2/3

Step-by-step explanation:

16 x 2/3

32/3 or 10 2/3

7 0
4 years ago
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