Vocabulary
a 90 degree angle
right angle
Solve the system of equations:
y = 2x + 3
x = 2y
x = -2
y = -1
This year's NBA finals is between teams from which two states?
Colorado and Florida
a 180 degree angle
straight angle
sqrt(1521) =
39
Name 5 players currently on the Miami Heat
Butler, Adebayo, Martin, Strus, Herro, Highsmith, Cain, Haslem, Lowry, Love, Jovic, Oladipo, D. Robinson, O. Robinson, Vincent, Yurtseven, Zeller.
Two adjacent angles whose sum is 180 degrees
supplementary angles
Solve the system of equations. Write your answers as fractions.
y = 2x + 8
x = -6y
x = -48/13
y = 8/13
Find the distance between coordinates (3, 5) and (5, 9). Give an exact answer.
sqrt(29)
An angle greater than 180 degrees
reflex angle
Solve the system of equations. Write your answers as fractions or mixed numbers.
x = -1/2y - 2
y = 2.5x - 8
x = 8/9
y = -5 - 7/9
Kenya had a population of 16,331,000 in 1980, and 13,434,000 in 1975.
Qatar had a population of 230,000 in 1980 and 160,000 in 1975.
Which country had a greater rate of growth during these 5 years?
Qatar
What type of equation is this?
y = x6
Power equation
Complete the square (write in a(x-h)2 + k form)
2x2 + 39 = -18x
2(x + 9/2)2 - 3/2
Your aunt and uncle have been visiting your home. Five minutes after they drive away, you realize that you forgot their luggage. You happen to know that they drive slowly, so you get in your car and drive to catch up with them. Your average speed is 10 MPH faster than their average speed, and you catch up with them in 25 minutes. How fast did you drive?
distance = rate * time
30 mins uncle distance (30/60) = 25 mins your distance (25/60).
uncle's distance = your distance.
r(30/60) = (r+10)(25/60)
r/2 = 5r/12 + 50/12
6r = 5r + 50
r (uncle's) = 50mph, so your r = 60mph
X: 1, 2, 3, 4, 5, 6
Y: 2, 4, 7, 9, 12, 14
Calculate the correlation coefficient r for this data.
0.998