Triangle abc and triangle def are similar. what is the measure of side df?

15

Step-by-step explanation:

You can see that AC and DF are the simular so you would set up the equation  

9/x multiplied by 15/25 and through cross multipying which is 9 times 25 and x times 15 you would get 225 = 15x then divide both sides by 15 and the answer is 15 which hopefully is the right answer for line DF

I just checked it IS 15 CM

Step-by-step explanation:

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.

just sum

10 + 10 = 20