What is 400,000 in scientific notation
A) 40 x 10^4
B) 400 x 10^3
C) 4 x 10^6
D) 4 x 10^5

D) 4 x 10^5

Step-by-step explanation:

400,000

The number in scientific notation is between 1 and less than 10.  We need to move the decimal 5 places to the left.  Since we move 5 places to the left, our exponent is 10^5

4.0 * 10 ^5

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.

i'm sorry i don't know

step-by-step explanation: