Ten randomly selected automobiles were stopped, and tread depth of the right front tire was measured. the mean was 0.32 inch, and the standard deviation was 0.08 inch. find the margin of error for the confidence level of 95%.
if you increase the confidence level will the confidence interval estimate be wider or narrower?

3x + 18 = 147°

step-by-step explanation:

3x + 18 = 147°, because the value of the central angle is equal to the value of the arc formed by it.

i hope i you.

answer:

given the linear inequality :

add 2y to both sides we get;

simplify:

add 12 to both sides of an equation;

simplify:

divide both sides by 2 we get;

or

the related equation for the inequality equation [1] is;

y-intercepts defined as the graph crosses the y-axis.

substitute x =0 in [2] to solve for y;

y = 6

x-intercepts defined as the graph crosses the x-axis.

substitute value y = 0 to solve for x;

subtract 6 from both sides we get

multiply both sides by 2 we get;

or

x = -12

now, plot these point (0, 6) and (-12, 0) on graph as shown below and shade the graph below the solid line.

the answer is a) y= 2 csc [0.5 (x+pi/2)]-1

step-by-step explanation: