Scientific Notation
Write 3.2 x 10^4 in standard notation.
32,000
What is the MEDIAN of this data set?
100, 80, 70, 90, 85
85
Solve for n:
2n + 4 = -10
n = -7
What is the slope of this line?
y = 5/8x - 20
5/8 (rise/run)
If salmon costs $4.50 per pound, what is the cost of 5 pounds?
$22.50
Convert 1.85 x 10^-3 to standard form.
.00185
What is the MEAN (average) of this set?
0, 50, 90, 90, 90
64
Solve for x:
3(3x -1) = 15
x = 2
If f(x) = 13/x, what is the value of x=15?
13/15 or .866
What expressions if equivalent to:
(8yz) (y) (7z)
56y^2 z^2
Write 297,000 in scientific notations.
2.97 x 10^5
If the x and y variables move upward together, which type of scatterplot association will the graph have?
A. No association
B. Negative association
C. Positive association
C. Positive
5y + 1 = 3y + 7
y = 3
On a time versus distance graph, how do you know when an object is NOT moving?
A. Flat horizontal line
B. Straight up and down vertical
C. A dot
A. Flat horizontal
y = 4 and x = y +6
What is the value of x?
10
Convert .00006 to scientific form.
6 x 10^-5
On a dot plot, how do you know how many people were surveyed?
Count the dots (or Xs)
2m + 3 = 2m -7
NO solution
It costs $100 to reserve the public pool and then$20 per hour after that. Which equations matches?
A. y = 100x + 20
B. y = 20x +100
C. y = 120x
B. y = 20x +100
A triangle has a 90 degree and 13 degree angle. How big is the third angle?
77 (all 3 most total to 180 degrees)
Which is larger?
A. 3.89 x 10^4
B. 4.5 x 10^3
A. 3.89 X 10^4
What is the probability of choosing a negative number from this set?
18, -5, 1/2, -4, 23
2/5 or 40% or unlikely
4(5a + 1) = 2(10a +2)
Infinite solution OR ALL REAL numbers
The function of f is defined by f(x) = 85 - 5x. What is the value of f(10)?
35 from (85 - 50)
What is the length of the diagonal of a right triangle with leg lengths of 5 and 12?