Answer:
r^8
Step-by-step explanation:
r 2 • r • r 5
Assuming that r 2 means r^2
r ^2 • r • r^ 5
When the bases are the same and we are multiplying, we add the exponents
r ^2 • r^1 • r^ 5
r^(2+1+5)
r^(8)
Answer: Y=35x
Step-by-step explanation:
Answer: 0.3413
Step-by-step explanation:
Given: an American household generates an average of 28 pounds of newspaper for garbage or recycling. Assume the standard deviation is 2 pounds.
Let
.
Let x be the random variable that denotes the amount of newspaper for garbage generated by each household each month.
If the data conforms to a normal distribution and a household is selected at random, the probability of its generating between 28 and 30 pounds per month is about

Hence, the required probability is 0.3413.
(x+4)^2 / 9 - (y+3)^2 / 16 = 1
a^2 = 16 and b^2 = 9
a = +4 and -4
b = +3 and -3
Center is (-4, -3)
Vertices is (-4 + a, -3) and (-4 - a, -3)
Vertices is (-1, -3) and (-7, -3)
Answer:

Step-by-step explanation:
Rearranging the terms, we get
. Dividing both sides by 7, we get
, so 