Vocabulary
Give an example of a linear equation and write it in slope-intercept form.
3x - 20 = -x + 18
x = 19/2 or 9.5
What is the probability of flipping a coin and landing on the same side 6 times in a row? Give your answer as a fraction.
(1/2)6 = 1/64
Explain the difference between whole numbers and integers.
Whole numbers: 0, 1, 2...
Integers: ...-2, -1, 0, 1, 2...
Lana and LL were both at school, but now nobody can find them. Lana went 30 km north, and LL went 80 km west. How far apart are they now?
302 + 802 = c2
c = sqrt(c2) = 89 km
If you flip a coin 6 times, how many combinations of exactly 2 heads are there?
15 combinations
What is the definition of a rational number?
A number that can be written as a ratio of integer/integer
Write as a simplified fraction with no negative exponents:
(3x42y) / (8y-5)
(3x4y6) / 4
Explain why a kite is a quadrilateral, but not a parallelogram.
Quadrilateral because it has 4 sides and 4 non-reflex interior angles.
Not a parallelogram because it doesn't have 2 pairs of parallel sides.
Name every n-sided polygon from 5 sides to 10 sides.
pentagon, hexagon, heptagon, octagon, nonagon, decagon.
Write as a simplified fraction with no negative exponents:
[(8x42y) / (10y-5)]2
(64x8y12) / 25
Part 1: How do you know if two linear equations are parallel?
Part 2: How do you know if two linear equations are perpendicular?
1: m1 = m2
2: m1 * m2 = -1
Euler's formula, (say or write the formula), shows the relationship between the _____, ______, and _______ of polyhedra.
F + V = E + 2
faces, vertices, edges
Martin and Sean are at the school. Martin walks south for 18 km, and Sean walks east for 36 km. Then Martin realizes he forgot his math notebook at school, so he walks back to the school. After getting his math notebook, he suddenly wants to do math, and walks 20 km north while writing math problems in his notebook. Sean starts walking back to the school too, but stops to solve a math problem after walking 15 km back. How far apart are they?
202 + 212 = 292
distance = 29km
Everyone on your team must tell me about something new you learned in another class this week.
You can't use the same answer as your teammates.