Answer:
2.3
Step-by-step explanation:
138 divided by 60=2.3
divide the amount consumed by the total number of households involved
Answer:
Step-by-step explanation:
Sec B
1) 5p⁻³ = 8*5⁻²
p⁻³ = 2³*5⁻²/5
p⁻³ =2³*5⁻³ { 1/a^m = a^-m}
p⁻³ = 5⁻³ /2⁻³ {a^m = 1/a^-m}
p⁻³ = (5/2)⁻³
p= 5/2
2) 4x² = 81
x² = 81/4
x² = 9² /2²
x² =(9/2)²
x = 9/2
3) 9^x/3 =81
9^x/3 = 9^2
Comparing the powers, x/3 = 2
x = 2*3 =6
x = 6
Step-by-step explanation:
answer and explanation is pinned
Answer:
95%
Step-by-step explanation:
19 out of 20
Write as a fraction
19/20
Multiply both the numerator and denominator by 5
19 * 5 / 20 * 5
95/100
Write as a percent
95%
Hope this helps :)
Answer: Our required probability is 0.304.
Step-by-step explanation:
Since we have given that
N = 21
Number of improperly drilled holes k = 4
Number of properly drilled holes = N-k= 21-4=17
Let X be the number of improperly drilled holes in a sample of 5.
We will use "Binomial distribution":
So, our required probability is 0.304.
