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ALEKS MATH PLACEMENT TEST FOMULAS

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ALEKS MATH PLACEMENT TEST FOMULAS

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  • August 22, 2024
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  • 2024/2025
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  • ALEKS
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GEEKA
ALEKS MATH PLACEMENT TEST FOMULAS
Place Value - Answers -The value of a digit based on its position within a number

Fractions - Answers -A number expressed in the form a/b where a is a whole number
and b is a positive whole number.

Adding and Subtracting with the same denominator - Answers -a/b + c/b = a+c/b OR a/b
- c/b = a-c/b

Adding and Subtracting with different denominators - Answers -a/b + c/d = ad+cb/bd OR
a/b - c/d = ad-cb/bd


perpendicular lines - Answers -Lines that intersect to form right angles
m1*m2 = -1

midpoint of the segment AB - Answers -(x1+x2/2, y1+y2/2)

point-slope form - Answers -y-y1=m(x-x1)

intersecting lines - Answers -a+b=180

slope intercept form - Answers -y=mx+b, where m is the slope and b is the y-intercept of
the line.

transversal - Answers -eight angles are formed when a line crosses two parallel lines.
the four big angles (a) are equal, and the four small angles (b) are equal

parabola - Answers -y=ax^2+bx+c

Pythagorean Theorem - Answers -a²+b²=c²

Area of a triangle - Answers -A=1/2bh

sum of triangle angles - Answers -180˚

isosceles - Answers -A triangle that has 2 equal sides.

similar triangles - Answers -Similar triangles have the same shape: corresponding
angles are equal and corresponding sides are proportional

area of a circle - Answers -A=πr²

Circumference of a circle - Answers -2πr

, full circle degrees - Answers -360

length of arc - Answers -(n degree / 360 degrees) · 2 · pi · r

area of a sector - Answers -Area of a Sector = (central angle/360) x πr²

Area of a parallelogram - Answers -A=bh

sum of inside angles of a polygon - Answers -180 (n-2)

Area of a trapezoid - Answers -A=1/2h(b1+b2)

Volume of a right prism - Answers -V=Bh

Surface Area of a Right Prism - Answers -S=2B+Ph

Surface Area of a Cylinder - Answers -2πrh+2πr²

Volume of a cylinder - Answers -V=πr²h

Volume of a pyramid - Answers -1/3Bh

Surface Area of a Pyramid - Answers -1/2Pl+B

Surface Area of a Cone - Answers -πrl+πr²

Volume of a cone - Answers -1/3πr²h

Surface area of a sphere - Answers -4πr²

Volume of a sphere - Answers -4/3πr³

Quadratic Formula - Answers -x = -b ± √(b² - 4ac)/2a

simple interest - Answers -I=prt

mean - Answers -sum of the data/number of data entries

mode - Answers -The value that appears most frequently in a set of data

range - Answers -largest value - smallest value

Multiplying and dividing fractions - Answers -a/b * c/d = a*c/b*d AND a/b / c/d = a/b/c/d =
ad/bc

Equal To - Answers -=

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