A) For each statement, decide if it is a proposition. Let’s watch a movie. x − 7 > 0
b) For each of the following propositions, find a negation.
The light is green.
The team did not make the tournament.
c) Suppose A represents x
2 = 5, B represents x =
√
5, C represents x = −
√
5, and D represents
“x is a real number.” Translate the following sentence into symbolic logic.
If x
2 = 5 and x is a real number, then x =
√
5 or x = −
√
5.

my answer is$ 12

step-by-step explanation:

because 15 -2=12

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.