There are four coins in a purse. One is a quarter and the others are nickels. Describe the probability of picking a dime.
a)likely
b)unlikely
c)certain
d)impossible
impossible
100
Write .000078 in scientific notation
7.0 x 10^-5
100
Solve: x-4=10
x=14
100
Simplify: √9
3
100
3y + 2x = 6
5y - 2x = 10
(0, 2)
200
A coin is tossed...what is the probability of it landing on heads?
1/2
200
4^9
Multiply; write the answer in exponential form
4^6 x 4^3
200
Solve: 2x-4=10
x=7
200
Simplify: √81
9
200
2x + 3y = 20
-2x + y = 4
(1, 6)
300
At an ice cream shop, 2 of the last 10 cones sold had strawberry ice cream. What is the experimental probability that the next cone sold will have strawberry ice cream?
1/5
300
Solve:
(2a^3)^3
8a^9
300
5x - 6 = 3x - 8
x=-1
300
Simplify: 2√9 x 3√4
36
300
Solve: 2x + y = 9
3x – y = 16
(5, -1)
400
A jar consists of 21 sweets. 12 are green and 9 are blue. William picked two sweets at random. Find the probability that
i)both sweets are blue
ii)one sweet is blue and one sweet is green