Systems of Equations
solve for x AND y using the system of equations:
1) x + y = 10
2) x - y = 4
x= 7
y=3
If f is the function defined by f(x)=(2x-1)/3
What is the value of f(5)?
3
Factor:
x2 + 7x + 12
(x+3)(x+4)
What percentage of 300 is 75?
25%
This statistical measure of central tendency represents the middle value in a data set when the numbers are arranged from smallest to largest.
Median
Which is NOT a method of solving systems of equations?
1. Elimination
2. Substitution
3. Simplification
4. Graphing
3. Simplification
The function g is defined by g(x)= -x + 8
What is the value of g(0)?
8
What is the sum of roots of x2 -7x+10=0?
7
The International Space Station orbits Earth at an average speed of 4.76 miles per second. What is the space station's average speed in miles per hour?
17,136 miles/hour
This 3/14 holiday celebrates which mathematical concept?
Pi (3.14)
A store sells two types of pens: red pens for $1.50 each and blue pens for $3.00 each. If a customer buys 12 pens for a total of $24, how many blue pens did they buy?
4 blue pens.
Solve for x :
2(x−3) + 4 ≥ 10
x ≥ 6
How many solutions can be produced from the following equation:
x3-5x+2=0
3
A recipe calls for 2 cups of sugar for every 5 cups of flour. If a baker uses 15 cups of flour, how much sugar is needed?
6 cups sugar
This value is, by definition, the smallest prime number.
2
The shape of the Gateway Arch in St. Louis and suspension bridges like the Golden Gate Bridge is based on this mathematical curve.
a Parabola
he Great Pyramid of Giza was built with a nearly perfect ratio of height to base, close to 1.618. What is the name of this ratio?
The Golden Ratio