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nordsb [41]
3 years ago
11

If the sin 90° = 1, then the cos 0° = _____.

Mathematics
1 answer:
Sati [7]3 years ago
8 0

Answer:

A

Step-by-step explanation:

The angles are complementary

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Please help on math hw will mark brainliest
erma4kov [3.2K]

Answer:

∠ACB 107°

Step-by-step explanation:

1.) First, by using straight angle theorem we can determine that ∠CED is equal to 180 - 147 which is 33°.

2.) Next, using alternate interior angles theorem we know that ∠CDE = ∠ABC which is 40°

3.) Then, because of the angle sum theorem we know that all the angles of the triangle must add to 180° and we can therefore solve for ∠DCE using the equation 33 + 40 + x = 180 where x is ∠DCE. By solving this we get 107°.

4.) Finally, using vertical angles theorem we know that ∠DCE = ∠ACB and so ∠ACB is 107°

4 0
3 years ago
Nine times ten to the negative eleventh power over two point four times ten to the eighth power
Greeley [361]

Answer:

9(10^-11)10^8

2.4

Step-by-step explanation:

That is the correct answer

8 0
3 years ago
The table shows the Grades that students received on a test what fraction of the students scored an A or B on the test
Triss [41]
Okay. So, 15% is 15/100 and 33% is 33/100. 15 + 33 is 48. You leave the denominator the same, so the fraction is 48/100. However, the fraction needs to be simplified. Whatever you do to the numerator, we must do to the denominator. We can divide both numbers by 4 to get the simplified fraction form. 48/4 is 12. 100/4 is 25. There. The simplified fraction is 12/25. The answer is H: 12/25.
5 0
3 years ago
A. Fill in the boxes :
frosja888 [35]

Step-by-step explanation:

it's simple:

  • 8 tens + 19ones = 9 tens + 9 ones
  • 8 tens + 2 ones =7 tens+12 ones
  • 7 tens +25 ones = 9 tens + 5 ones
  • 70+11=80+1
  • 50+13=60+3
  • 90+13=100+3
5 0
3 years ago
Jeremy gives his horse 12 gallons of water each day how many 1 quart pails of water is that
hjlf
Hey! Hope that I can help. 1 gallon = 4 quarts, so 12 x 4 = 48 quarts.
4 0
3 years ago
Read 2 more answers
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