Choose the situation in which the use of exact numbers is appropriate. a) paying your power bill b) adding bacon bits to a salad c) buying hamburgers for a cookout d) ordering flyers to hand out at a political rally

A) paying your power bill

Step-by-step explanation:

A. It is important to know the exact amount that you will pay for your power bill because if you pay an estimated amount you might underpay and have your power cut off or overpay and therefore use money that could have been used for other household expenses.

B. You cannot determine what the exact amount of bacon necessary for a salad will be. So you use the eye and preference, not exact calculations.

C. Without knowing the exact number of people who will attend the cookout it is impossible to order the exact amount of burgers. So you estimate and order a number you are comfortable with

D. As above, there is no way of knowing how many people will be at a rally, normally an estimate based on previous rallies and other factors is used

The answer is A.) paying your power bill

Step-by-step explanation:

In the other situations approximate numbers are more likely to be used.

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.