Show:
Rational Numbers with all operations
Decimals and Percents
Rational and Irrational Numbers
Integer Exponents
^ = "to the power of"
Scientific Notation
^ = "to the power of"
100
At the beginning of the day, the stock market goes down 40 1/2 points and stays at this level for most of the day. At the end of the day, it goes back up 110 1/4 points. Write and solve an equation to show the total change in points throughout the day.
-40 1/2 + 110 1/4 = +69.75 points for the day
100
Is 4 a terminating, repeating, or non-repeating decimal
terminating
100
Between which two consecutive whole numbers is the square root of 33?
5 and 6
100
solve the equation w^2 = 144
w=12
100
Write the following number in standard form 3.58 x 10^-2
0.0358
200
At a fair last weekend, Shamirah made and sold homemade jewelry. If she sold the jewelry for R dollars and it cost her C dollars to make the jewelry, then the formula P=R-C describes her profit P in dollars. If her profit was $34.07 and she sold the jewelry for $74.84, how much did it cost Shamirah to make the jewelry?
$40.77
200
At the grocery store, you want to buy 2 3/5 pounds of turkey. What decimal should the digital scale show?
2.6 pounds
200
The area of a square poster is 59 square inches. Find the length of one side of the poster to the nearest tenth of an inch
7.7 inches
200
solve the equation c^2 = 64/81
c= 8/9
200
write the following in scientific notation 1324.67
1.32467 x 10^3
300
Is the product positive or negative? -6(-3.2+2.7)(-2.7+3.2)
positive
300
250% of 5.2 equals what ?
13
300
Is the square root of 7 >, <, or = to 1.8?
>
300
Find the cube root of -8
-2
300
If your calculator shows 7.5E+9, what would the proper scientific notation be?
7.5 x 10^9
400
-2.5(-3.5+4)
-1.25
400
13/18% of a quantity is equal to what fraction of a quantity?
13/1800
400
Is the square root of 56 rational or irrational?
irrational
400
solve the equation n^3 = 1/27
n= 1/3
400
Express 0.000003 in scientific notation
3.0 x 10^-6
500
A container holds 70,000 ounces of water. Every 96 minutes, 1.8 ounces of water leaks out. Represent the total change in the amount of water in the container after 6 hours
-6.75 ounces
500
A forest covers 74,000 acres. A survey finds that 0.2% of the forest is old-growth trees. How many acres are old growth trees ( to the nearest whole acre )
148 acres
500
Error Analysis: Antwon compares 8/33 and 5/11. He incorrectly states that 8/33 > 5/11 because 4.13>2.20. What is Antwon's likely error?
He divided the denominator by the numerator
500
Solve for the product of (4x^9)(6x^4)
24x^13
500
A research study reports that the average person purchases 240 granola bars per year. If there are 264 million people in the country, how many granola bars are purchased by the whole country in one year? Express your answer in scientific notation
6.336 x 10^10