Answer: y - 3 = -1/3 (X - 3)
Step-by-step explanation:
So you find the slope with Y1-Y2/X1-X2 to get -1/3 then you use the point slope equation Y - Y1 = M( X - X1)
Answer:
A. True
B. True
C. False
Step-by-step explanation:
Hope that helps!
Answer:
Step-by-step explanation:
We want to determine a 90% confidence interval for the true population mean textbook weight.
Number of sample, n = 22
Mean, u = 64 ounces
Standard deviation, s = 5.1 ounces
For a confidence level of 90%, the corresponding z value is 1.645. This is determined from the normal distribution table.
We will apply the formula
Confidence interval
= mean ± z ×standard deviation/√n
It becomes
64 ± 1.645 × 5.1/√22
= 64 ± 1.645 × 1.087
= 64 ± 1.788
The lower end of the confidence interval is 64 - 1.788 = 62.21 ounces
The upper end of the confidence interval is 64 + 1.788 = 65.79 ounces
Therefore, with 90% confidence interval, the true population mean textbook weight is between 62.21 ounces and 65.79 ounces
Answer:
area of triangle = 4.5*6/2 = 13.5 sq.yd.
Step-by-step explanation:
The area of a right triangle is half of the product of the sides adjacent to the right angle.
Here the sides adjacent to the right angle are 6 yd and 4.5 yd.
Therefore the
area of triangle = 4.5*6/2 = 13.5 sq.yd.
Answer:
18 women
Step-by-step explanation:
Sum the parts of the ratio, 7 + 2 = 9 parts
Divide 45 by 9 to find the value of one part of the ratio.
45 ÷ 9 = 5 ← value of 1 part, thus
7 parts = 7 × 5 = 35 ← number of men
2 parts = 2 × 5 = 10 ← number of women
We require to change the ratio to 5 : 4
The 5 part of the ratio represents the number of men, thus
35 ÷ 5 = 7 ← value of 1 part of the ratio, thus
4 × 7 = 28 ← number of women
Number of women required to join existing committee = 28 - 10 = 18
