Answer:
25%
Step-by-step explanation:
4/16 days were under 78 degress
Answer:
Following are the solution to the given question:
Step-by-step explanation:
For question 1:
Calculating the speed between A and B:
For question 2:
Calculating the speed between B and C:
For question 3:
In this the speed between A and B is the double to speed between B and C.
Answer: C) -3
Step-by-step explanation: 4(-3) + 12 = 0
Answer:
Account A: Decreasing at 8 % per year
Account B: Decreasing at 10.00 % per year
Account B shows the greater percentage change
Step-by-step explanation:
Part A: Percent change from exponential formula
f(x) = 9628(0.92)ˣ
The general formula for an exponential function is
y = ab^x, where
b = the base of the exponential function.
if b < 1, we have an exponential decay function.
ƒ(x) decreases as x increases.
Account A is decreasing each year.
We can rewrite the formula for an exponential decay function as:
y = a(1 – b)ˣ, where
1 – b = the decay factor
b = the percent change in decimal form
If we compare the two formulas, we find
0.92 = 1 - b
b = 1 - 0.92 = 0.08 = 8 %
The account is decreasing at an annual rate of 8 %.The account is decreasing at an annual rate of 10.00 %.
Account B recorded a greater percentage change in the amount of money over the previous year.
Answer:
Step-by-step explanation:
x²+7=43x
x²-43x+7=0
![x=\frac{43 \pm \sqrt{(43)^2-4(1)(7)} }{2(1)} \\=\frac{43 \pm \sqrt{1849-28} }{2} \\=\frac{43 \pm \sqrt{1821} }{2} \\\approx \frac{43 \pm 42.673}{2}\\\approx 0.1635,42.8365](https://tex.z-dn.net/?f=x%3D%5Cfrac%7B43%20%5Cpm%20%5Csqrt%7B%2843%29%5E2-4%281%29%287%29%7D%20%7D%7B2%281%29%7D%20%5C%5C%3D%5Cfrac%7B43%20%5Cpm%20%5Csqrt%7B1849-28%7D%20%7D%7B2%7D%20%5C%5C%3D%5Cfrac%7B43%20%5Cpm%20%5Csqrt%7B1821%7D%20%7D%7B2%7D%20%5C%5C%5Capprox%20%5Cfrac%7B43%20%5Cpm%2042.673%7D%7B2%7D%5C%5C%5Capprox%200.1635%2C42.8365)