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Svetradugi [14.3K]
3 years ago
12

Which expression is equivalent to sin

Mathematics
1 answer:
Scilla [17]3 years ago
4 0

Answer:

sin(-pi/2) = -1

Step-by-step explanation:

sin (pi/12) cos((7pi)/12) -cos (pi/12) sin((7pi)/12) = -1

cos(-pi/2) = 0

sin(-pi/2) = -1

cos((2pi)/3) = -1/2

sin((2pi)/3) = (√3)/2

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A boat is located a sea level. A scuba diver is 80 feet along the surface of the water from the boat and 30 feet below thw water
Sauron [17]

Given :

A boat is located a sea level. A scuba diver is 80 feet along the surface of the water from the boat and 30 feet below the water surface.

A fish is 20 feet along the horizontal plane from the scuba diver and 10 feet below the scuba diver.

To Find :

The slope between the scuba diver and fish.

Solution :

Horizontal distance between diver and fish is 20 feet.

Fish is 10 feet below the scuba diver.

Slope between scuba diver and fish is :

tan\ \theta = \dfrac{10}{20}\\\\tan\ \theta = 0.5

Therefore, the slope between the scuba diver and fish is 0.5 .

6 0
3 years ago
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Verdich [7]

Answer:

I think the answer is A

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Lisa's shop sells 5 quarts of ice cream each day. How much is this in pints?
Sergeeva-Olga [200]

Answer:

10

Step-by-step explanation:

We know there are 5 quarts.

There are 2 pints for each quart.

This can be though of as a ratio of:

2 : 1

There are 5 quarts, which is 5 times bigger than the ratio of 1.

So this means we need to mutliply both sides of the ratio by 5, to make the quarts equivelent to 5:

2*5 : 1*5

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So for every 5 quarts there are 10 pints.

Hope this helps!

8 0
3 years ago
Someone who's good at math please help me!!!
timurjin [86]
#1.
Here what you do is cross multiply.
\frac{8x}{13x}
#2.
Same as #1, just cross multiply.
\frac{9x}{12}

You get the gist?
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A farmer sows 100 seeds of a new type of corn and wants to quickly determine the yield, or total number of ears of corn, for the
snow_lady [41]

Answer:

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Step-by-step explanation:

hope it helps

7 0
2 years ago
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