
Step-by-step explanation:
Let assume that,
So,
Given,
perimeter = 200 feet
We know that,
Perimeter = 2(length + wide)
So,

So length = x + 40 = 30 + 40 = 70 feet

About 95% of a normal distribution lies within two standard deviations of the mean, so 5% lies without, and since the distribution is symmetric, 2.5% lies to either side. This means
Press subject, then press mathematics (duh)
Answer:
x = -3
Step-by-step explanation:
1+3x=-2(x+7)
Distribute
1+3x = -2x-14
Add 2x to each side
1+3x+2x = -2x+2x-14
1+5x = -14
Subtract 1 from each side
1-1+5x= -14-1
5x = -15
Divide each side by 5
5x/5 = -15/5
x = -3
Answer:
53.8
Step-by-step explanation: