Usut
15
point
question attempt: 1 of unlimited
for each equation, determine whether it shows a direct variation (that is, shows directly proportional variables).
if it does, find the constant of variation and write it in simplest form.
5y = 25x
direct variation
not direct variation
4x - 5y = 9
direct variation
not direct variation
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2020 model
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Circle a has a diameter of 7 inches, a circumference of 21.98 inches, and an area of 38.465 square inches. the diameter of circle b is 6 inches, the circumference is 18.84 inches, and the area is 28.26 square inches. part a: using the formula for circumference, solve for the value of pi for each circle. (4 points) part b: use the formula for area and solve for the value of pi for each circle. (4 points)