True or false: x^3*x^5 is equivalent to x^15 ? If not then write an expression that is equal
What is False?
100
A number that goes on forever. This number never terminates nor repeats.
What is an irrational number?
100
The body length of a daddy longlegs spider is about 0.000002 kilometer. Convert the number to scientific notation.
What is 2*10^-6?
100
Solve the equation.
4x=12
What is 3?
100
Jennifer is 5 years younger than Amanda. If the sum of their ages is 51, how old is each of them?
What is 28 & 23?
200
Solve 6x^2 = 294 for x
What is 7?
200
Between which two consecutive integers is the value of square root of 171?
What is 13 & 14?
200
One ton of gold is worth approximately $9,000,000. The Earth’s crust contains about 1.2x10^8 tons of gold. The value of gold in the Earth’s crust expressed in scientific notation is?
What is 1.08 *10^15 ?
200
3x – 5 = 2x
What is 5?
200
A square room has a tiled floor with 400 square tiles. How many tiles are along an edge of the room?
What is 20 ?
300
A square room has a tiled floor with 169 square tiles. How many tiles are along an edge of the room?
What is 13?
300
This list contains only rational numbers.
A. π , 1.6, 3.4
B. 2, 1, √2
C. 4, ⅓, √5
D. ½, 0, 2.6
What is list D?
300
There are 2.62 × 10^22 atoms in 1 gram of sodium. How many atoms are there in 600 grams of sodium? Write your answer in scientific notation. If necessary, round your answer to two decimal places.
What is 1.57 × 10^25 ?
300
How many solutions does the following equation have?
5x – 5 = 5(x + 1)
What is none?
300
Light travels at a speed of 1.86 x 10^5 miles per second. If a "light year" is the distance that light travels in one year, how many miles are in a light year?
What is 5.865696 x 10^12 miles or 5,865,696,000,000 miles?
400
Which answer choice is the solution to the
equation below?
x^3= 27/125
What is 3/5?
400
Place the following numbers in order from least to greatest 4 √20 1 √5 2 √18 3, 5
What is 1,2, √5, 3, 4, √18, √20, 5?
400
In 2010, the population of Barbados was about
2.57 × 10^5. The population of Jamaica was
about 2.73 × 10^6. About how much more was
the population of Jamaica than Barbados?
What is 2.473 x 10^6?
400
How many solutions does the following equation have?
1/2x – 5 + 3/2x = x + x – 5
What is infinite?
400
McKala wants to buy a pair of boots. She goes to the mall and sees that Shoe World has the boots on sale for $25 off the original price. She is ready to purchase the boots when Jasmine informs McKala that next door at Shoe Parade the same boots are on sale for 40% off the original price. For what original price will these discounts be equal, if ever?
What is $62.50?
500
For the equation, if x = 2, what is the value of y?
x^4 = y^2
What is 4?
500
Which of the real numbers below
are rational? (Hint: Theres more than one)
A. √2
B. √289
C. 5/8
D. 2.8999899989…
E. 3.45454545
What is B, C, & E?
500
One of the fastest supercomputers in the world is NEC's Earth Simulator, which operates at a top-end of 40 teraflops (4*10^13 ). How long would it take this computer to perform 250 million calculations?
What is 6.25 x 10^-6 = 0.00000625 ?
500
How many solutions does the following equation have?
3 (x + 4) = 3x + 4
What is none?
500
Assume that there are 20,000 runners in the Atlanta Marathon. Each runner runs a distance of 26 miles. If you add together the total number of miles for all runners, how many times around the globe would the marathon runners have gone?
Consider the circumference of the earth to be 2.5 x 10^4 miles.