What is the circumference of a circle whose radius is 5?
Hint: Circle Formulas
C = 2(pi)r
C = (pi)d
A = (pi)rsq
rsq = r squared
31.42
100
Evaluate the expression:
l2l + l-2l - l-2l
l#l = absolute value
2
100
3x = 12
x = 4
200
-2 - 4
-6
200
1/3 - 3/2
-7/6 = -1 1/6
200
What is the area of a circle whose radius is 7?
Hint: Circle Formulas
C = 2(pi)r
C = (pi)d
A = (pi)rsq
rsq = r squared
153.9
200
A park has a grassy section that covers 2 1/3 acres of grass. Danny moved half of the grass on Wednesday. What is the number of acres that Danny mowed.
7/6 = 1 1/6
200
7x + 1 = 15
x = 2
300
-12 + (-7)
-19
300
6/9 / 2/3
/ = divide sign
18/18 = 1
300
If the area of a circle 28.27, what is the radius? (Round the answer to the nearest whole number)
Hint: Circle Formulas
C = 2(pi)r
C = (pi)d
A = (pi)rsq
rsq = r squared
3
300
The numbers below are weights of packages. Please order the weights from least to greatest.
A. 7.7 B. 7 1/7 C. 7.25
B, C, A
300
30 = 12x - 6
x = 3
400
27 + (-14)
13
400
7/8 x 1/3 x 2/4
x = multiply
14/96 = 7/48
400
What is the volume of a cylinder whose radius is 5 and whose height is 10.
Hint: Circle Formulas
C = 2(pi)r
C = (pi)d
A = (pi)rsq
V = (pi)rsq(h)
rsq = r squared
785.40
400
Juanita started a business. The first year she spent $12,000 on advertising. In the second year she spent 40% in advertising.
How much did Juanita spend in advertising for the second year?
16,800
400
4x + 2 = 4 + 2x
x = 1
500
-31 - (-11)
-20
500
1/2 x 3/4 / 1/4
/ = divide
x = multiply
12/8 = 6/4 = 1 1/2
500
What is the diameter of a circle whose area is equal to 78.54?
Hint: Circle Formulas
C = 2(pi)r
C = (pi)d
A = (pi)rsq
V = (pi)rsq(h)
rsq = r squared
10
500
Justine paid $1.16 for 2 pounds of bananas. Dave bought 2.5 pounds of bananas for the same price per pound that Justine paid.
What is the total amount Dave paid for bananas?