Answer:
57% of the class failed the test.
Step-by-step explanation:
28 - 12 = 16
16/28 = 0.57142857142 ≈ 0.57
Thus, 57% of the class failed the test.
The equation would be 28-2.50x since it's 2.50 per ride, you would be able to ride 11 rides total
Answer:
Step-by-step explanation:
Answer:
The center of this circle is at
. The radius of this circle is
.
Step-by-step explanation:
A circle with center
and a radius of
(
) could be expressed as:
.
(In other words, a point is on this circle if and only if the distance between that point and the center is equal to the radius.)
Rearrange this equation using binomial expansion to match the equation given in this question:
.
.
The equation in this question is:
.
Match up the coefficients of
and
in the two equations.:
- Coefficient of
:
. - Coefficient of
:
.
Thus,
and
.
The constants of the two equations should also match up:
.
Substitute in
as well as
and solve for
:
.
(since
.)
Therefore, the center of this circle is
. The radius of this circle is
.
Answer:93
Step-by-step explanation: