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____ [38]
3 years ago
14

A counterexample for sinytany=cosy is 0 degrees true or false?

Mathematics
1 answer:
Talja [164]3 years ago
7 0

Answer:

False

sin (y) / cos (y) = cos (y)

cos (y) could be any value from -1 to 1.

Step-by-step explanation:

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During a 5-day work week, pete was sick for 2 days .what fraction of the work week was he sick?
timofeeve [1]
I think the answer is 2/5
6 0
2 years ago
Please help I’m in geometry and I’m so lost
makvit [3.9K]
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6 0
3 years ago
Zaheer, a boy of height 1.5m was watching the entire programme. Initially he observed the top of the flag pole at an angle of el
7nadin3 [17]

Answer:

15.2 m

Step-by-step explanation:

You need to draw a figure. Start by drawing a horizontal segment approximately 10 cm long; that is the ground. Label the left end point A and the right endpoint B. On the right endpoint, B, go up a short 1 cm vertically. That is 1.5 m, the height of Zaheer. Label that point C. Now from that point draw a horizontal line that ends up above point A. Label that point D. Now go back to point C. Draw a segment up to the left at a 30 deg angle with CD. End the segment vertically above point D. Label that point E. That is the top of the flagpole. Draw a vertical segment down from point E through point D ending at point A. Segment AE is the flagpole. Go back to point C. Move 3 cm to the left on segment CD, and draw a point there and label it F. That is where Zaheer moved to. Now connect point F to point E. That is a 45-deg elevation to point E, the top of the flagpole.

m<EFD = 45 deg

m<EFC = 135 deg

m<FEC = 15 deg

m<ECD = 30 deg

We now use the law of sines to find EC

(sin 15)/10 = (sin 135)/EC

EC = 27.32

Because of the 30-60-90 triangle, ED = EC/2

ED = 13.66

Now we add the height of Zaheer to find AE.

13.66 + 1.5 = 15.16

Answer: 15.2 m

7 0
3 years ago
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Musya8 [376]

Answer:

15 sides

Step-by-step explanation:

360/24 =15

Hope this helps!

3 0
2 years ago
Read 2 more answers
What is 30% of 90? It didn't give me options. ​
ra1l [238]

Answer:

27

Step-by-step explanation:

To find a percent of a number, change the percent to a decimal and multiply by the number. To change a percent to a decimal, move the decimal point of the percent two places left.

30% of 90 =

= 30% * 90

= 0.30 * 90

= 27

6 0
3 years ago
Read 2 more answers
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