Answer:
first sub in (0,-2) to get
-2 = ab^0, but b^0 = 1
so a=-2
so far we have
y = -2b^x
now use the other point (2,-50)
-50 = -2(b^2)
b^2 = 25
b= ±5
however in exponentional equations the base is usually positve, so now you have
y = -2(5^x)
sub in x=-2 and you got it.
Step-by-step explanation:
hope it helps..
Answer:
Additive opposite = - 659
Multiplicative opposite = 
To fond the area need to be grassed, find the area of the yard and subtract the area of the pool/patio.
(3x - 5)(4x - 10) =
12x^2 - 30x - 20x + 50 = 12x^2 - 50x + 50 Area of yard
(x + 8)(x - 2) =
x^2 - 2x + 8x - 16 = x^2 + 6x - 16 Area of pool/patio
12x^2 - 50x + 50
- ( x^2 + 6x - 16)
---------------------------
11x^2 - 56x + 66 ft^2 LETTER D
Answer:
R = 0.8333%/month
(R = 9.9996%/year)
Equation:
r = (1/t)(A/P - 1)
Calculation:
Solving your equation:
r = (1/4)((8267.7/8001) - 1) = 0.00833333
r = 0.00833333
Converting r decimal to R a percentage
R = 0.00833333 * 100 = 0.8333%/month
Calculating the annual rate
0.8333%/month × 12 months/year = 9.9996%/year.
The interest rate required to get a total amount, principal plus interest, of $8,267.70 from simple interest on a principal of $8,001.00 over 0.333333 years (4 months) is 0.8333% per month.
