Expressions
Evaluate:
-6x+5x^3 when x= -2
-28
(2x^4) - (8x)
2x(x^3 - 4)
Convert 86% to a decimal.
.86
530,000,000
5.3 x 10^8
A car dealer earns a commission of 6.5% on each car sold. What is the commission of a car that sold for $65,725?
$4,272.13
Evaluate:
-2xy^3 + 2y^2 when x=-2 and y=-1
-2
(16 v^2 w^6 x^4) + (12 v^9 w^8)
4 v^2 w^6 (4x^4 + 3 v^7 w^2)
Convert 5% to a decimal.
0.05
Write in SN:
0.000503
5.03 x 10^-4
John plays baseball and gets to bat 87 times during the season. However he only got 13 hits. What percent of times at bat did John get a hit?
14.9%
Simplify:
4a - 9b + a - 4b
5a - 13b
(12 v^7 w^8) - (24 v^4 w^2 x^3)
12 v^4 w^2 (v^3 w^6 - 2x^3)
Convert 1.32 to a percent.
132%
Write in decimal form:
7.6 x 10^8
760,000,000
$6000 is invested in an account with an annual simple interest rate of 5%. How much is in the account after 7 years?
$8,100
Simplify:
(7x^2 + 5x + 1) - (x^2 + 7)
6x^2 + 5x - 6
(9 u^4 v^2 y^5) - (30 u v^7)
3uv^2(3 u^3 y^5 - 10v^5)
Convert .567 to a fraction.
567/1000
Write in decimal form:
9.103 x 10^-6
0.000009103
$6000 is invested in an account with an annual rate of 5% compounded monthly. How much is in the account after 7 years?
$8,508.22
Simplify:
(-7y^3) * (-2xy^3)
14xy^6
7x^3(4 x^2 y^2 + 1)
Convert 18.013% to a fraction.
18013/100,000
Write in SN:
0.00000000000024968
2.4968 x 10^-13
On Black Friday, a pencil was discounted 30% and was sold for $395. What was the original price of the pencil?
$564.29