Answer:
36
Step-by-step explanation:
Using the slope formula:
slope = (y2-y1)/(x2-x1)
1/8 = (-10+6)/(4-w)
1/8 = -4/(4-w)
We can cross multiply to solve for w:
-32 = 4-w
w = 36
4 Quarters= 1 Dollar
4 Quarters=1 Dollar
1 Quarter=25 cents
7 nickels=35 cents
$2.60
Erin has 9 Quarters and 7 Nickels
Answer:
x = 150°
Step-by-step explanation:
From the picture attached,
Segment AC and segment BC are the tangents to circle O.
By the property of angle between tangent and the radius of a circle,
"Angle between the radius and tangent drawn to the circle is 90°"
m(∠OAC) = m(∠OBC) = 90°
Sum of opposite angles of the quadrilateral OBCA is 180°,
m(∠OAC) + m(∠OBC) = 180°
Therefore, quadrilateral OBCA is a cyclic quadrilateral.
By the same property of cyclic quadrilateral,
m(∠AOB) + m(∠ACB) = 180°
x° + 30° = 180°
x = 180 - 30
x = 150°
Answer:
17.27 or 17.267
Step-by-step explanation:
Answer:
Option B.
Step-by-step explanation:
Given information:
We need to find 95% confidence interval estimate for the difference between the means of two normally distributed populations.
Formula for confidence interval:
From the standard normal table it is clear that the z value at 95% confidence interval is 1.96.
Substitute the given values in the above formula.
The lower confidence limit is −18.78.
Therefore, the correct option B.