3 years ago

What is the Measure of <1? A.53 b.137 c.47 d.43

Mathematics

1 answer:

AnnyKZ [126]3 years ago

7 0

The answer is b .........

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Martin competed in a speed skating race. The surface of the ice rink was at

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From -5 to 0 is 5 degrees and from 0 to 5 is 5 degrees.

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The equation is $9x(x+2)=1,080.$

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Let x ft be the widht of the stall, then the length of the stall is x+2 ft. If each stall must be 9 ft high, then the volume of the stall is $V=x\cdot (x+2)\cdot 9=9x(x+2)\ ft^3.$

The volume of each stall is $1,080\ ft^3,$ then

$9x(x+2)=1,080,\\ \\x(x+2)=120,\\ \\x^2+2x-120=0,\\ \\D=2^2-4\cdot (-120)=4+480=484=22^2,\\ \\x_{1,2}=\dfrac{-2\pm 22}{2}=-12,\ 10.$

The width cannot be negative, thus, $x=10.$

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3 years ago

The greatest common factor using prime factorization for 28 and 63

Degger [83]

The answer is seven im sure

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4 years ago

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