Pythagorean Theorem
What is the formula to finding Pythagorean Theorem?
a2+b2= c2
How do you graph a coordinate? (hint: use the variables x and y )
use the ordered pair (x,y) and go look for the number of you x coordinate on your x axis and do the same for y on the y axis.
What are the three possible solutions to solving an equation?
No solution, One solution, and Infinite many solutions
What is scientific notation?
Scientific notation is a way of writing a large number in a smaller form.
When using an exponent how do you multiply?
When using an exponent you will multiply the number to itself the
amount of times the exponent tells you to.
What is the hypotenuse when working with the Pythagorean Theorem?
The hypotenuse is the slanted part of the right triangle or the side that is always opposite of the 90 degree angle.
What is the formula to find slope when given two ordered pairs?
y2 - y1 / x2 - x1
What are the six steps to solving an equation?
1. Box the variables and draw a line from the equal sign
2. Distribute
3. Combine like terms
4. Move variables to one side of the equation
5. Add/Subtract the constant
6. Multiply/Divide the coefficient.
Using a as your original number and x as your exponent what is the format to writing scientific notation?
a+10x
you multiple the number by itself 3 times and you will get an answer.
A student was asked to solve an equation. This was her answer:
162 + 122 = c2
256 + 144 = c2
400 = c
What part of her answer was wrong and what should she have done?
She did not complete the last step but instead skipped it. In step three
she forgot to add the 2 after the c and therefore skipped the step when
she needed to square root her answer which gave her 400 = c instead of 20 = c
the correct answer which is 20.
If you have the coordinates (3,2) and (6,4) what is your slope?
3/2
How many solutions does this equation have? :
7x-3 = 5x+5
7x-3 = 5x+5 has one solution
when writing scientific notation what must the first number of the equation be in between?
a. 0 - 1
b. 1 - 5
c. 1 - 9
c. 1 - 9
When cubed rooting or square rooting how do you get your answer?
When cubed rooting you find a number that multiplied twice by itself to get the original number and when square rooting you find a number that could multiply by itself once.
Solve for A if (round decimal to the tenths place)...
B=12 h
C=24
a = 20.78
How would you graph the coordinate (9,-7)?
look for the positive nine on the x axis then look for the negative seven on the y axis. draw a line on both numbers and put a point where they meet.
solve the equation and the number of solutions.
7x-3 = -3+7x
The answer is x=x and there is infinite many solutions.
which of the following is not considered scientific notation and why?
A. 4.8 x 102
B. 35.9 x 107
C. 1.964 x 109
B. 35.9 x 107 , because the number before the decimal in scientific notation must be between 1 and 9.
Solve the equation: (/=root)
122
/144
122 = 144
/144 = 12