Answer:
0.98732
Step-by-step explanation:
Given that :
Mean = 10 minutes
Variance = 2 minutes
For less than equal 40 jobs
Mean (m) = 40 * 10 = 400 minutes
Variance = 2 * 40 = 80 minutes
Standard deviation (s) = √variance = √80
Converting hours to minutes
X = 60 * 7 = 420 minutes
P(X≤ 420) :
Z = (x - m) / s
P(X≤ 420) :
Z = (420 - 400) / √80
Z = 20 / √80 = 20 / 8.9442 = 2.236
P(Z ≤ 2.236) = 0.98732
Answer:
Hence option A and C are correct
Step-by-step explanation:
By putting value of 1.7 in each of the given equations of line as options should satisfy the equation
Option A
7– 7 = 3(1– 1)
0 = 0
Option B
y – 1 = 3(x – 7)
7-1 not equal to 3 (1-7)
Option C
y – 7 = 4(x – 1)
7 - 7 = 4 (1-1)
0 = 0
Option D
y – 1 = 4(x – 7)
7-1 is not equal to 4 (1-7)
Move the attached variables to the other side using division since they are attached by multiplication.
I=prt
I/pt=prt/pt
I/pt=r
r=I/pt
Answer:
7/100
Step-by-step explanation:
:)
Answer:
x=3
Step-by-step explanation:
5(2)^x=40
Divide each side by 5
5 /5 *(2)^x=40/5
2^x = 8
Rewriting 8 as 2^3
2^x = 2^3
The bases are the same so the exponents are the same
x=3