Answer:
Solution given:
y=6/7x+7
Comparing above equation with y=mx+c
we get
m=6/7
a What is the slope of a line parallel to it?
Since for parallel slope are equal ,
slope will be 6/7.
b What is the slope of a line perpendicular to it?
Since for perpendicular line slope is reciprocal to another line but negative so
slope of line is-7/6.
Answer:
C. 30
Step-by-step explanation:
circumference of the semicircular plot

Answer:
i think so!
Step-by-step explanation:
Answer:
3x2y−3xy+12x−12
Take out 3xy common from first two terms and 12 from last two terms.
3xy(x−1)+12(x−1)
(x−1)(3xy+12)
Answer:
Population standard deviation,
= 3683.063 .
Step-by-step explanation:
We are given that the width of the estimated confidence interval i.e. 99% is 600 and the sample size used in estimating the mean is 1000 which means ; n = 1000 and width = 600
We know that Width of confidence interval = 2 * Margin of error
<em> Margin of error</em><em> </em>=
= 2.5758 *
{because at 1% significance level
z table has value of 2.5758 .}
Therefore, 600 = 2 * 2.5758 *
⇒
=
= 3683.063 .
Hence, the Population standard deviation = 3683.063 .