Exponents
Write using an exponent
(2/9) * (2/9) * (2/9) * (2/9)
(2/9)^4
What step should be performed first to evaluate the expression
5^2 * (1 1/5 + 6) - 9 * 3
1 1/5 + 6
Andrea is selling for a new skincare line. She sells face wash for $25, face lotion for $20, and an exfoliating scrub for $33.50. She also sells a sample size makeup trial for $5. At her first skincare party, Andrea sold 7 bottles of face wash, 4 lotions, and 4 sample size makeup trials. Write an expression to represent the total cost for the products sold.
(7 * 25) + (4 * 20) + (4 * 5)
Evaluate the expression 18a + b when a = 5/6 and
b = 5
20
The volume of a cube is found using the formula where s is the length of the side. Write the volume for the cube using an exponent.
V = s * s * s
3.93
Evaluate the expression
(1/2)^2 * (4 * 5 - 4) + 1^3
5
Write seven less than nine and one-half times the number of acres of land Terri has as an algebraic expression. Use a as your variable.
9 1/2a - 7
Evaluate the expression z */* 1/2 when
z = 2 5/6
5.67 or
5 2/3
Solve 36
729
Evaluate
(7 * 25) + (4 * 20) + (4 * 5)
275
Write twelve fewer than the librarian's number of books, b as an algebraic expression
b - 12
Evaluate y + z when
y = 2/3 and z = 2 5/6
3 3/6 or 3 1/2
When is an exponent solved when solving an equation? When is it not solved in this order?
It is solved after parentheses. It is only solved before parentheses when the exponent is inside the parentheses.
Evaluate
5^2 * (1 1/5 +6) -9 *3
153
Write the product of three and the number of books, b, increased by fifteen as an algebraic expression
3b + 15
Evaluate 4x + 2 when x = 1/4
3
Bella is studying the growth of mold spores on a piece of bread. She puts 5 spores on the piece of bread and records the number of spores over time. She records the results over 12 hours and notices that every 3 hours, 5 more spores grow on the bread. Predict the number of mold spores growing after 24 hours.
59 or 1,953,125
Evaluate
(62 * 0.75) + (74 * 1.25) + (35 * 1.75) -55
145.25
Write thirteen more than one-fourth of the librarian's number of books, b as an algebraic expression
13 + 1/4b
The expression 1/2bh can be used to find the area of a triangle. Find the area of the triangle if b = 7.4 inches and h = 9 inches. Express your answer as a decimal.
33.3 square inches