Answer:
See explanation
Step-by-step explanation:
Assuming the given equation is

To solve for r, we first divide both sides by a.

We now subtract 5 from both sides:

We now divide through by - 1 to get:

Or

You're going to want to find the area of the whole square, then subtract the area of each triangle from that.
Answer:
Their welders earn $50,000 annually.
Step-by-step explanation:
Given : 

n = 100

To Find : The ship building association wishes to find out whether their welders earn more or less than $50,000 annually.
Solution :

n = 100
Since n > 30
So we will use z test

Substitute the values


Refer the z table for p value
p value = 0.9599
α= 0.05
Since p value > α
So we accept the null hypothesis .
Hence their welders earn $50,000 annually.
Answer:
Y=-2x+5 (3 or C)
Step-by-step explanation:
Replace the value of x
Y= -2x(-1)+5
Solve
Y= 2+5
Y= 7