Answer:
$45.50
Step-by-step explanation:
70 x 0.35 = 24.5 (multiplying by the percent to see how much it would take off the original price)
70 - 24.5 = 45.5 ( subtracting the amount off from the original price)
$45.50 (final answer)
7.342*10^-3
is the scientific notation for 0.007342
Answer:
x = -8(y - 5)² + 3
Step-by-step explanation:
When info about focus and directrix is given, we want to use the standard equation of a parabola x - h = 4p(y - k)^2.
p is the signed distance between focus and vertex (or that between directrix and vertex). Here the directrix, x = 7, lies to the right of the vertex, (3, 5), which indicates that this horizontal parabola opens to the left. The total vertex to directrix distance is 7 - 3, or 4; dividing this result by 2 results in 2; thus p = -2 (a signed distance).
Now we substitute the given and calculated info into the equation
x - h = 4p(y - k)^2:
x - 3 = 4(-2)(y - 5)², or
x - 3 = -8(y - 5)², or x = -8(y - 5)² + 3
Answer:
Step-by-step explanation:
For compound interest, we use the formula A = P(1 + r/n)^{nt}, where A is the amount, P is the principle, r is the rate, n is the number of times compounded per period of time, and t is the time.
We can alter this for a decrease. Instead of adding r/n to 1, we can substract it:
A = 17,600 * (1 - 0.01175 / 1)^{1 * 11} = 15,454.24
After 11 years, the car will be worth $15,454.24
