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Algebra Basics Flashcards | StudBud
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Algebra Basics
Algebra Basics
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1
“Length” is the
longest distance from end to end
False
True
2
The variable or letter L stands for______in Geometry.
Height
Lenght
Last
Left
3
What is the formula for the area of a triangle?
A = 1/2bh
A = lw
A = bh
A = l + w
4
In Algebra any letter can be used as a variable
False
True
5
What is the order of operations?
MDAS (Multiply, Divide, Add, Subtratct)
ASDM (Add, Subtract, Divide, and Multiply)
BEDMAS (Binomials, Exponents, Divi, Multi, Add and Subtract)
PEMDAS (Parenthesis, Exponents, Multi, Divi, Add and Subtract)
6
The letter b usually refers to the base of a triangle.
False
True
7
Algebra is:
when numbers and other general symbols are used to represent number
I am not sure
when letters and other general symbols are used to represent number
I don't know
8
What is the quadratic formula?
x = -b ± √(b² + 4ac)/2a
x = -b ± √(b² - 4ac)/2a
x = b ± √(b² - 4ac)/2a
x = b ± √(b² + 4ac)/2a
9
What is the slope of the line y=2x+1?
2
-2
0
1
10
The width”
is the shortest side of a rectangle.
True
False
11
What is the value of 3x + 2 when x = 5?
15
13
17
8
12
What is the value of x in 2x + 7 = 15?
4
5
8
7
13
What is the formula to find area of a circle?
A= Pi( r)²
A= Pi (r)
C = 2 Pi (r)²
A = r²
14
In Geometry, ____________ are used to represent values given or values that are unknown
Numbers
words
Symbols
letters
15
What is the formula for slope?
x2 - x1/y2 - y1
M=Y2 -Y1 / X2 -X1
run/rise
rise/run
16
What is the formula for the perimeter of a rectangle?
P = l + w
P = 2l + 2w
P = 3l + 2w
P = lw
17
What is the formula for distance?
d = √((x2-x1)² + (y2-y1)²)
d = rt
d = r/t
d = (x2-x1) + (y2-y1)
18
This is the formula to find SA of a Cylinder:
SA=2lw+2lh+2wh
SA= 2πrh+2πr2
SA=ph=2B
SA= 2πrh
