Answer:
Rammy can buy 5 pounds of peaches
Step-by-step explanation:
1.20(5) + 3.60 = 9.60
subtract the cost of the gallon from the total amount and then divide the leftover cost $6 by $1.20 and you'll get 5.
Answer:
=2
Step-by-step explanation:
6+2=8+5=13 3+8=11 11-13=2
Answer:
Step-by-step explanation:
5)
2x - 4y = -1
4y = 2x + 1
y = ½x + ¼
6) (y - y₁) = m(x - x₁)
7) y = mx + b
8)
y = mx + b
-3 = 6(4) + b
-3 = 24 + b
b = -27
y = 6x - 27
Answer:
There is enough evidence to reject the manufacturer’s claim and the standardized test statistic z is -3.43
Step-by-step explanation:
A manufacturer of sprinkler systems designed for fire protection claims that the average activating temperature is at least 135°F.
So, Null hypothesis:
Alternate hypothesis :
To test this claim, you randomly select a sample of 32 systems and find the mean activation temperature to be 133°F.
x=133
n = 32
Population Standard deviation =
Formula :
z=-3.43
Refer the z table for p value
p value = 0.0003
p value < α
So, we failed to accept null hypothesis
Hence there is enough evidence to reject the manufacturer’s claim and the standardized test statistic z is -3.43