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fiasKO [112]
3 years ago
8

Find the value. Please

Mathematics
1 answer:
IgorC [24]3 years ago
7 0
The cosine ratio is adjacent leg divided by the hypotenuse.
The hypotenuse in a right triangle is the longest side and it is opposite the right angle.
An adjacent leg is the side that has an endpoint that is at the vertex of the angle and the other endpoint is at the vertex of the right angle.

cos A = \frac{12}{20} =  \frac{3*4}{5*4} = \frac{3}{5}
ANSWER: cosA= \frac{3}{5}


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A certain television is advertised as a 59-inch TV (the diagonal length). If the width of the TV is 49 inches, how tall is the T
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Answer: 32.9ft on delta math

Step-by-step explanation: none

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Express the product of 2.03 and 24 to the correct number of significant digits.
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The answer is:  [B]:  " 49 " .
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Explanation:
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2.03 * 24  =  48.72 ;  round to "2 significant digits" ==> 49 .

The answer is:  [B]:  49 .
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This is assuming, of course, that "24" is not an "exact figure".
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It costs $5820 to get new windows for a certain house. Each of the 28 windows costs the same amount.
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For each expression below, select the letter that corresponds to the equivalent expression given above.
11111nata11111 [884]
Part 1)
(x²+15x+65)+(2x-5)*(3x+8)
(x²+15x+65)+(6x²+16x-15x-40)
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the answer Part 1) is the letter B
(7x²+16x+25)

Part 2)
(4x+1)*(3x-4)-(5x²-10x-12)
(4x+1)*(3x-4)-(5x²-10x-12)
(12x²-16x+3x-4)-(5x²-10x-12)
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the answer Part 2) is the letter D
(7x²-3x+8)

Part 3) 
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(8x²+19x+4)+(3x²-15x+2x-10)
(11x²+6x-6)

the answer part 3) is the letter A
(11x²+6x-6)

Part 4) 
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(18x²-42x+3x-7)-(7x²-34x-20)
(11x²-5x+13)

the answer Part 4) is the letter C
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