Tabitha and her parents drive to dallas for a wedding. after 90 minutes, tabithas father tells her they have traveled 105 miles what is the average rate of speed the car travels in 90 minutes?

a) 52.5 miles per hour

b) 78.5 miles per hour

c)75 miles per hour

d)70 miles per hour

56.6

step-by-step explanation:

the ratio of the perimeters is equal to the scale.

the ratio of the areas is equal to the square of the scale.

34 / 20 = k

a / 19.6 = k²

substituting:

a / 19.6 = (34 / 20)²

a = 19.6 (34 / 20)²

a ≈ 56.6

3.how is solving radical equations different than solving linear equations?

step-by-step explanation:

hello from mrbilldoesmath!

answer:

the domain is the set { -2, 0, 2, 3}

discussion:

the domain is the set of x values in the ordered pairs (x,y). taking the x, or first component, of each ordered pair gives   -2, 0, 2, 3.

you,

mrb

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step-by-step explanation: