Owners of a new coffee shop tracked sales for the first 20 days and displayed the data in a scatterplot by day:
One of the owners in the coffee shop notices a positive correlation in the day and determines, "Our
increased coffee sales are a result of the time passed since the shop opened!" is the owner correct in
making this claim? Explain.

answer: c, the green line

step-by-step explanation:

there is no black line, eliminate b.

simple interest implies periodic payments, but the red line shows no payments, eliminate d.

simple interest has equal payments. if paid say every day, the graph is about a straight line (actually a stairstep).

the yellow line is not straight, eliminate a.

check: the green line is straight, answer is c.

simple interest with positive interest rate gives a straight line sloping up to the right. green line:

g(t) = $100 + ($200-$100) ÷ (20 years) × (t years)

= $100 + (4%/year) × ($100)(t years)

incidentally, the yellow line curving upward represents continuously compounded interest

y = $100 × 2^(t years / (14 assuming the yellow line hits $200 at 14 years. 2^0 is 1, so y(0) = $100; 2^(14/14) is 2, so y(14) = $200.

answer: 0.64

step-by-step explanation:

step-by-step explanation:

the radius is 2 times the diameter.

step-by-step explanation: