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k0ka [10]
2 years ago
8

Please help quickly. thanks in advance​

Mathematics
1 answer:
sesenic [268]2 years ago
6 0

Answer:

a. sin 30* = sin 150*

b. sin 1* = sin 179*

a. cos 340* = cos 20*

b. cos 260* = cos 100*

Step-by-step explanation:

sine is symmetrical around x = 90*

cosine is symmetrical around x = 180*

* means degree sign of course.

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What percent is equivalent to
Soloha48 [4]

Answer:

20%

Step-by-step explanation:

To change a fraction to a percentage , multiply by 100%

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= 20%

8 0
2 years ago
I need help please on this math
Zigmanuir [339]

Answer:

a

Step-by-step explanation:

3 0
3 years ago
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1. A painter earns $15 per hour. What is the minimum number of hours he must work to earn at least $200? Write an inequality to
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He must work 13 hours. I don't feel like showing my work.
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Lola is saving money for a new bike. The first month, she saves $50 from her birthday. Lola plans to save $10 per month thereaft
weqwewe [10]
So this can be translated like the following:
Bike costs= 173 dollars She currently has 107. She saves 11 dollar per week to get the bike so the formula is:
173 = 107 + 11X where X is the number of weeks

Step 1: bring the 107 to the other side to get 173-107 = 11X
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So the answer is it will take jennifier 6 weeks to save for the bike.
8 0
3 years ago
- 9 (K - 17 ) = 54 please solve​
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