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nekit [7.7K]
2 years ago
5

If sinA=1/2 what is cosA​

Mathematics
1 answer:
sergejj [24]2 years ago
4 0

Answer:

\frac{\sqrt3}{2}

Step-by-step explanation:

sin(A)=\frac{1}{2}

A = \frac{\pi}{6}  //this is retrieved from looking at the unit circle

cos(A) = cos(\frac{\pi}{6}) = \frac{\sqrt3}{2}

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The area of a rectangular piece of paper is 32 square inches. The perimeter is 24 inches.
rodikova [14]

Answer

4 and 8

Explanation

List all factors of 32 and then find which number equals 24 when added

Or

You could waste time and use alegbra lol

5 0
2 years ago
Diane has $1.85 in dimes and nickels. She has a total of 24 coins. How many of each kind does she have?
poizon [28]
<span>Let the nickels be x and the dimes be y
 x + y = 24
 5x + 10y = 185
 5x + 5y = 120
 5y = 65
 y=13
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 Answer: 11 nickels and 5 dimes</span>
3 0
3 years ago
Find the area of the shape below, giving your answer to 1 decimal place
Andre45 [30]

Answer:the answer is 150

Step-by-step explanation:multiply 10 and 15 and you get 150

7 0
3 years ago
Read 2 more answers
Suppose that the water level of a river is 34 feet and that it is receding at a rate of 0.5 foot per day. Write an equation for
vivado [14]

Answer:

The equation to represent the rate of receding water level is                     L = 34 (0.5)^{d}   .

Step-by-step explanation:

Given as :

The initial level of water in river = 34 feet

The rate of receding water level = 0.5 foot per day

Or, The rate of percentage of receding water level = 50 % per day

Let the level of water after d days = L

Now,

The level of water after d days = initial level of water × ( (1-\dfrac{\textrm Rate}{100})^{Time}

I.e L = 34 × ( (1-\dfrac{\textrm 50}{100})^{d}

∴  L = 34 × (0.5)^{d}

Hence The equation to represent the rate of receding water level is                L = 34 (0.5)^{d}   . Answer

5 0
3 years ago
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EleoNora [17]
P+3p=4p which is the answer
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2 years ago
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