Answer:
74
Step-by-step explanation:
Answer:
distrubitive property a(b+c)=ab+ac
distributive property
a(b+c)=ab+ac
remember
(x^m)(x^n)=x^(m+n)
so
3x(x^2+4)=
(3x)(x^2)+(3x)(4)=
(3x^3)+(12x)=
3x^3+12x
Charlotte's car used \frac{1}{90} of a gallon to travel \frac{1}{2} of a mile. How many miles can the car go on one gallon of gas?
Answer:
The car go 45 miles on one gallon of gas
Step-by-step explanation:
From the above question
1/90 gallons of gas = 1/2 mile
1 gallon of gas = x mile
Cross Multiply
1/90 × x = 1/2 × 1
x = 1/2 / 1/90
x = 1/2 × 90/1
x = 45 miles
Hence:
The car can go 45 miles on 1 gallon of gas.
I would love to help but I don’t get it you can add an image so I can help you
Answer:
7.75 hours
Step-by-step explanation:
Given that:
Mean, m = 6.1
Standard deviation, s = 1
Shortest Time spent sleeping in other to be in top 5% of sleeping time.
5% = 0.05
Zscore for P(Z > 0.05) = 1.645 (Z probability calculator)
To obtain the shortest time, x
Zscore = (x - m) / s
1.645 = (x - 6.1) / 1
1.645 = x - 6.1
1.645 + 6.1 = x
7.745 = x
x = 7.75
Sgirtws sleep time = 7.75 hours
