Answer:
Step-by-step explanation:
To find the total surface area of a cylinder
We get
S.A=2πr^2+2πrh
S.a=2×3.142×4×4+2×3.142×4×16
S.A=100.544inches sq+401.192inches sq
S.a=502.464inches sq
Answer:
Step-by-step explanation:
UV+VW=UW
19+4x-20=6x-35
4x-1=6x-35
34=2x
X=17
UW=19+4(17)-20
UW=67.
Answer:
a) 0.997 is the probability that the breaking strength is at least 772 newtons.
b) 0.974 is the probability that this material has a breaking strength of at least 772 but not more than 820
Step-by-step explanation:
We are given the following information in the question:
Mean, μ = 800 newtons
Standard Deviation, σ = 10 newtons
We are given that the distribution of breaking strength is a bell shaped distribution that is a normal distribution.
Formula:
a) P( breaking strength of at least 772 newtons)
Calculation the value from standard normal z table, we have,
![P(x \geq 772) = 1 - 0.003 = 0.997 = 99.7\%](https://tex.z-dn.net/?f=P%28x%20%5Cgeq%20772%29%20%3D%201%20-%200.003%20%3D%200.997%20%3D%2099.7%5C%25)
0.997 is the probability that the breaking strength is at least 772 newtons.
b) P( breaking strength of at least 772 but not more than 820)
![P(772 \leq x \leq 820) = 97.4\\%](https://tex.z-dn.net/?f=P%28772%20%5Cleq%20x%20%5Cleq%20820%29%20%3D%2097.4%5C%5C%25)
0.974 is the probability that this material has a breaking strength of at least 772 but not more than 820.
Answer:
x= 5/4
Step-by-step explanation:
(5x +7) -1 (x+2)
5x+ 7 -1x -2
5x-1x 7-2
4x 5
4x/4 5/4
x=5/4
Answer:
40.00
Step-by-step explanation:
It is trying to trick you