Hello :
f'(7) = the slope of the tangent line : let A(7,4) B(0,3)
the slope is : (YB - YA)/(XB -XA)= (3-4)/(0-7) = -1/-7 = 1/7=f'(7)
the equation of the tangent line is :
y-3 = 1/7 (x-0)
y = (1/7)x+3
the line tangent and the graph of : f passes through the point A(7, 4)
x= 7 y=4 so : f(7) =4

4 0

2 years ago

The heights of women in the united states are normally distributed with a mean of 64 inches and a standard deviation of 2.75 inc

9966 [12]

According to the normal distribution curve:

"the percent of women whose heights are between 64 and 69.5 inches" represents the values within 2 standard deviation ,,,

And that value is 95% of the whole data

7 0

2 years ago

You buy a new car for $31,300. The average car depreciates in value by 14% per year. How much will it be worth after each of the

Andrei [34K]

A = P(1 + rt)

A=31,300(1+.14*1)

A=35682

5 0

2 years ago