SURFACE AREA:i was literally just working on surface area so (15×6=90)×2=180 and then (2.26×15=33.9)×2=67.8 and then (2.26×6=13.56)×2=27.12 and add all of them together to get 274.92
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Answer:
b. x = π/2, x = 3π/2
Step-by-step explanation:
The maximum is found where the argument of the cosine function is a multiple of 2π.
2x -π = 2nπ
2x = (2n+1)π . . . . . . . add π
x = (2n+1) · π/2 . . . . . divide by 2
x = {π/2, 3π/2}
The expected number of female children in a family with three children is 1.5.
The correct option is B.
We have to determine
What is the expected number of female children in a family with three children?
<h3>Probability;</h3>
Probability is defined as the sum of all observations and the number of observations.
The expected value of female children= Probability of female children x Total number of children.
A child can be male or female, so there are 2 combinations, the favorable outcome is female.
The probability of female children = 1/2.
Therefore,
The expected number of female children in a family with three children is;
Hence, The expected number of female children in a family with three children is 1.5.
To know more about probability click the link given below.
brainly.com/question/743546
Given:
The expression
Required:
Find the value.
Explanation:
We will use exponent rule
Now,
Answer:
Y=2x+0.5
4.5=2x+0.5
4.5-0.5=4
4=2x
4÷2=2
x=2
so