Answer:
try C or A
Step-by-step explanation:
Answer:
r= 0
Step-by-step explanation:
Cancel equal terms on both sides of the equation:
= 3r - 5r = -4r
collect like terms
= -2r = -4r
move variable to left and change its sign
= -2r + 4r = 0
collect like terms
= 2r = 0
divide both sides of the equation by 2
r=0
Answer: a) 0.5636 b) 0.7881
Step-by-step explanation:
We assume that women’s heights are normally distributed .
Let x be the random variable that represents the shoe sizes.
Also, The population mean = ; Standard deviation:
a) Formula for z:-
Put x= 64, we get
Now, the probability that the male shoe sizes are greater than 8 :-
Hence, the probability that her height is less than 64 inches = 0.5636
b. Sample size : n= 25
Then , the formula for z :-
Put x= 64, we get
Then, the probability that they have a mean height less than 64 inches.:_
Hence, the probability that they have a mean height less than 64 inches. =0.7881
Answer:
Step-by-step explanation:
1. Divide cost by the pounds so you get the cost of one pound:
1.25 / 2.5= .5
1 pounds of bell peppers costs .50$
2. The beef cost most per pound: 9.56 / 4=2.39
3. He would have paid 11.05 for 8.5 pounds because when you divide 15.30 by 8.5 to get cost per pound and subtract .5 to get .50$ less per pound, then multiply by 8.5 to get the cost for 8.5 pounds, you get 11.05$