TeX rendering has been iffy at best on this site for the past few days, at least in my experience. I've attached a solution below.
Suppose the scores on an exam are normally distributed with a mean μ = 75 points, and standard deviation σ = 8 points. Suppose t
1 answer:
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Answer:
x + y = 84
Step-by-step explanation:
Given
x : y : z = 5 : 1 : 3, then
= 5 ( multiply both sides by y )
x = 5y ←
and =
( cross- multiply )
3y = z
Substitute z = 3y into z - y = 28
3y - y = 28
2y = 28 ( divide both sides by 2 )
y = 14 ← ←
Substitute y = 14 into x = 5y
x = 5 × 14 = 70 ← ←
Substitute y = 14 into z - y = 28
z - 14 = 28 ( add 14 to both sides )
z = 42 ← ←
Thus x = 70, y = 14 and z = 42
Hence x + y = 70 + 14 = 84
Here is the answer as shown in the picture:
Answer:
If f(x)=g(x), the solution is x=-2
Step-by-step explanation:
We are given:
We need to find the solution if f(x)=g(x)
Now solving for f(x)=g(x)
If f(x)=g(x), the solution is x=-2