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yan [13]
2 years ago
14

If cos x = sin(20 + x) and 0° < x < 90°, the value of xis

Mathematics
1 answer:
natka813 [3]2 years ago
5 0

Answer:

x= 35

Step-by-step explanation:

Cos x = Sin( 20+x)

 Sin ( 90 – x) = Sin(20+x)

 90 – x = 20+x  

 2x = 70  

 x = 35  

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What is the difference between positive and negative exponents
Sladkaya [172]
Negative exponents create the reciprocal of the original number:

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4^-4=1/64
5 0
4 years ago
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A person is shot out of a cannon at a circus. The height of the person flying through the air is described by the equation h (t)
Phantasy [73]

Answer:  The height of the person  is 96 feet.

Step-by-step explanation:

Hi, to answer this question we simply have to substitute t=4 seconds in the equation given:

h (t) = -6t² + 48t  

Replacing and solving:

h(4) = -6 (4)² + 48 (4)

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Feel free to ask for more if needed or if you did not understand something.  

8 0
3 years ago
Simplify <img src="https://tex.z-dn.net/?f=%5Csqrt%7B%20%5Cfrac%7B25y%5E2%7D%7B6x%7D" id="TexFormula1" title="\sqrt{ \frac{25y^2
yuradex [85]

Answer:

\frac{5y \sqrt{6x} }{6x}

Step-by-step explanation:

\sqrt{ \frac{25y^2}{6x}} \\  \\  =  \frac{5y}{ \sqrt{6x} }  \\  \\  =  \frac{5y \sqrt{6x} }{ \sqrt{6x}  \times  \sqrt{6x} }  \\  \\  =  \frac{5y \sqrt{6x} }{6x}

4 0
3 years ago
Juanita works at a telemarketing company. She makes 12 sales calls per hour. Employees are encouraged to make more than 480 call
sukhopar [10]
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ANSWER: 28 Hours
4 0
3 years ago
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Daniel [21]
There are 5,280 feet in a mile.

You can divide 16,300 by 5,280 to see how many miles it would be.

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6 0
4 years ago
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