Solve the system of equations
5
x
+
4
y
=
2
5x+4y=2 and
−
8
x
−
6
y
=
0
−8x−6y=0 by combining the equations.

(
5
x
(5x
+
4
y
+4y
=
=
2
)
2)

(
−
8
x
(−8x
−
6
y
−6y
=
=
0
)
0)
5
x
5x
+
4
y
+4y
=
=
2
2
−
8
x
−8x
−
6
y
−6y
=
=
0
0
try 0
x
x
+
+0
y
y
=
=

The equation of a circle is (x + 4)2 + (y + 6)2 = 16. determine the length of the radius. 10 4 16 8 my flower basket delivers flowers within a 20 mile radius of their store. if this area is represented graphically, with my flower basket located at (5, 2), what is the equation that represents the delivery area? (x - 2)2 + (y - 5)2 = 20 (x - 5)2 + (y - 2)2 = 20 (x + 5)2 + (y + 2)2 = 400 (x - 5)2 + (y - 2)2 = 400

2people are trying different phones to see which one has the better talk time. chatlong has an average of 18 hours with a standard deviation of 2 hours and talk-a-lot has an average of 20 hours with a standard deviation of 3. the two people who tested their phones both got 20 hours of use on their phones. for the z-scores i got 1 for the chatlong company and 0 for talk-a-lot. what is the percentile for each z-score?

What is the frequency of the sinusoidal graph?