Which quantity is best modeled by a linear function? A the area of a square as a function of the side length
(в
the height of a ball thrown into the air as a function of time
© the number of seconds as a function of the number of hours
D
the height of a reflector on a rotating bike tire as a function of time

let soccer = x and golf = y

part a

1st equation: x + y = 125

2nd equation: x = y +45

part b

replace x in the 1st equation with the 2nd one:

y + 45 + y = 125

simplify:

2y + 45 = 125

subtract 45 from each side:

2y = 80

divide both sides by 2:

y = 80/2

y = 40

she plays golf for 40 minutes.

part c

no because she plays soccer for 45 minutes longer than golf 40 +45 =   85 minutes, not 80 minutes.

answer: b.48 for

step-by-step explanation:

noncoplanar points are points that do not lie on the same line.

take the logarithm of both sides (the base of the log doesn't matter):

apply the exponent property - this says that :

distribute the log terms on both sides:

group like terms together:

divide through both sides by the coefficient on :

you can do some additional rewriting here using the properties of the logarithm to simplify things if you like: