Help fast no guessing timed !!

A is 25in

B is 128.5in

Step-by-step explanation:

A. The radius is half of the diameter, so 50in is the diameter so 50in divided by 2 is 25in so is the radius.

B. This time we are find the the circumference. So the formula is πd or pi times diameter or two pi radius. So it would be 50+50(3.14)/2. divide by two because its a semi circle and add 50 because of the diameter. You would only do this if its not a full circle . So now if you simplify you have 25(3.14)+50 which gives you 128.5in.

(sin 42)/31. = sinx)/37

sinx = 37 (sin42)/31

= 37× 0.66/31 = 0.787

x= 51.9

other angle opposite to y = 180-51.9-42

= 180- 93.9 =86.1

so

sin42)/31 = sin 86.1)/y

0.021 = 0.997 /y

y= 0.997/0.021 =47.47

answer: b. f(x) = (x + 2)^3 (x^2 - 7x + 3)^4

step-by-step explanation:

polynomials always have as many roots as their order. this is a 4th order polynomial- hence 4 roots!

complex roots of polynomials always come in pairs. the quadratic equation has the "+/-" in that will alwaysgenerate m+ni amd m-ni, so 7-2i must be a root of this polynomial equation.

the order of the numerator and denominator are both 2. so the horizontal asymptote is y=a2/b2 =7

verticle asymptotes are the forbidden x-values. f(x) becomes undefined at x=-3 because this value will cause a zero denominator.

a graph of r(x) will have vertical asymptotes at ±1 because these values will make the denominator zero. so the domain of the function cannot include ±1.

you 're wlecome! : )

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