what is an equation of the line that is perpendicular to y = - 3/4 x + 6 and passes through point (3, 9)?
1 answer:
You might be interested in
Answer:
Claim is false
Step-by-step explanation:
Claim : A credit reporting agency claims that the mean credit card debt in a town is greater than $3500.
n = 20
Since n <30
So we will use t test
Formula :
s = standard deviation = 391
x = 3600
n = 20
Degree of freedom = n-1 = 20-1 = 19
α=0.10
So, using t table
= 1.72
t critical > t calculated
So we accept the null hypothesis
Hence we reject the claim that the mean credit card debt in a town is greater than $3500.
Answer:
60 square feet
Step-by-step explanation:
Area of figure = area of rectangle + area of triangle
Rectangle:
Length = 10 ft
Width = 4 ft
Area = length * width
= 10 * 4
= 40 ft²
Triangle:
Base b = 12 - 4 = 8 ft
Height h = 10 - 5 = 5 ft
= 20 ft²
Area of the figure = 40 + 20 = 60 square feet