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andrew11 [14]
3 years ago
14

Given that sin0=21/29 what is the value cos 0 for 0°< 0<90°

Mathematics
1 answer:
sp2606 [1]3 years ago
3 0

Answer:

20/29

Step-by-step explanation:

sin θ = 21/29

Use Pythagorean identity:

sin² θ + cos² θ = 1

(21/29)² + cos² θ = 1

441/841 + cos² θ = 1

cos² θ = 400/841

cos θ = ±20/29

Since 0° < θ < 90°, cos θ > 0.  So cos θ = 20/29.

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vivado [14]

Answer:

Hala would have 10 candies, Ahmed would have 35, and Eman would have 45.

Step-by-step explanation:

if the candy is given out 2:7:9, add the numbers and devide. 90 ÷ 18 is five so multiply each number by 5 to get 10:35:45

8 0
2 years ago
The residents of a city voted on whether to raise property taxes. The ratio of yes votes to no votes were 6 to 5. If there were
Natasha_Volkova [10]

3020

Step-by-step explanation:

ans.

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8 0
3 years ago
There are 20 students in my class. Each student needs: .2 cups, 2 plates, 1 party hat and a pair of earphones. My teacher has 2
garik1379 [7]

Answer:

Simple, no. This would not be enough.

Step-by-step explanation:

This is because you mentioned that there are 20 students and each of them needed 2 plates. So, there would need to be at least 40 plates. Forks seem irrelevant in this question but if the teacher has 8 plates in 1 box and another 8 in the second box, that would sum up to 16 plates that are available. And the fact that the box doesn't even include the other items, should hint the lack of items available for the students.

This question seemed worded differently. But tried my best. :)

8 0
2 years ago
The equation h(t) = -16t^2? + 32t + 128 models the path of a ball thrown in the air from the top of a building. After how many s
Lelu [443]

Answer:

1 second

Step-by-step explanation:

4 0
3 years ago
Which lines are parallel to 8x + 4y = 5? Select all that apply.
Dvinal [7]

Answer:

A , B , C

Step-by-step explanation:

1) find the slope of the given line

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two parallel lines have the same slope

A : correct

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C : correct

D : wrong (2 is different from -2)

5 0
2 years ago
Read 2 more answers
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