An electrical pole is 12.4m tall. It is supported by a guy wire that is 17.3m long. How far is the anchor of the guy wire to the base of the electrical pole?

Use the Pythagorean theorem to solve this by recognizing the the length of the guy wire represents the hypotenuse.

If we set the base length to x, then x^2 = (17.3)^2 - (12.4)^2 = 145.53

Take the square root to find:  X = 12.1 (to three significant figures - and recognize that my calculator doesn't have a square root button, so t

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.