Answer:
0.4444
Step-by-step explanation:
Use the following property to ease the calculation:
P(At least one)=1-P(None)
Total number of electrical components: 9
Number that does not function well :1
Number that functions well : 8
We have 
ways to to choose 4 good components from 8.
We have 
ways to choose 4 components from a total of 9.
If all function properly then none is bad, we 
way to do this.
P(At least one)=
P(At least one)=
P(At least one)=0.4444
Answer:
y = 1/2x +5
Step-by-step explanation:
change f(x) to y
y = 2x - 10
then switch x and y
x = 2y - 10
then solve for y
add 10 to both sides and divide both sides by 2
Answer:
250 boys
Step-by-step explanation:
sum the parts of the ratio, 5 + 3 = 8 parts
Divide the total by 8 to find the value of 1 part of the ratio
400 ÷ 8 = 50 , then
number of boys = 5 × 50 = 250
Answer:
77 Japanese Yen.
Step-by-step explanation:
The conversion is 1 Canadian dollar for every 77 Japanese yen.
9514 1404 393
Answer:
5∛(x²)
Step-by-step explanation:
The denominator of a rational power is the index of the radical when the expression is written in radical form.
![5\times x^{\frac{2}{3}}=\boxed{5\sqrt[3]{x^2}}](https://tex.z-dn.net/?f=5%5Ctimes%20x%5E%7B%5Cfrac%7B2%7D%7B3%7D%7D%3D%5Cboxed%7B5%5Csqrt%5B3%5D%7Bx%5E2%7D%7D)
