Simplifying Square Roots
What is √49?
Which is larger: 0.7 or ⅔?
0.7
What is the slope in y=2x+3?
2
Simplify: 23
8
What is 25% of 40?
10
Simplify √81 ÷ √9.
3
Put in order from least to greatest: 4.1, −15.3, 0, 4.15, −1.5, 2.
–15.3, –1.5, 0, 2, 4.1,4.15
Solve for x: 3x+5=17.
x = 4
Write 0.00052 in scientific notation.
5.2 × 10⁻⁴
Write the ratio of 3 cats to 12 dogs in simplest form.
1:4
Simplify: 4√18.
12√2
Which set contains both a rational and an irrational number?
A) { 4, 0.25, -7 }
B) { π, √2, e }
C) { 5/2, √3 }
D) { √9, -8, 0 }
{ 5/2, √3 }
Graph y=−x+2. (Describe slope & y-intercept.)
Slope –1, y-int 2
Simplify: 52×53
5⁵ = 3125
Solve: x/12 = 5/8
x = 7.5
Evaluate: (12√2)2
288
Which of these numbers lie between 4 and 4.5 on the number line?
A. √13
B. √17
C. √22
D. √28
B. √17
Find the equation of a line through (0,4) with slope ½.
y = ½x + 4
Evaluate: (43)2
4⁶ = 4096
A shirt costs $28 after a 30% discount. What was the original price?
$40
If the side of a square is 10√2, and the area is 20x, what is the value of x?
x = 10
Which statement is true?
A. 2 < √15 < 3
B. 1 < √15 < 2
C. 3 < √15 < 4
D. 5 < √15 < 7
C. 3 < √15 < 4
Two lines have slopes 3 and 1/3. Are they perpendicular, parallel, or neither?
Neither!
Convert 3.25×105 to standard form
325,000
If a car travels 180 miles in 3 hours, what is its speed in mph?
60 mph