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Test your basic knowledge |
Praxis I Math
Start Test
Study First
Subjects
:
praxis
,
math
Instructions:
Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. What is the formula the formula for an arc if you know the radius and the n= central angle
(n/360) X 2pi r
Consecutive angles
Altitude
Radius
2. A triangle with three acute angles (less than 90 degrees)
N!/ (n - r)!
Supplementary
Acute
A^3
3. When calculating the probability of mutually exclusive event y (can not occur simultaniously) you need to ______their seperate probabilities (uses the word 'or')
Adjacent
Plane
(pi)r ^2
Added
4. What are the 2 formulas to calculate the circumference of a circle
Vertices
Point circle does not exist
I
Pi(d) 2(pi)r
5. When solving a system of equation involving quadratics and one is linear and the other is quadratic - solve the _______ first - then substitue the found value into the quadratic and solve for the other unknown
Linear substitute
Bh
Hyperbola
Side square root
6. The absolue value of the difference of the coordinates of any two points on the real number line
Hyotenuse
Exterior angle
n
Distance
7. Use ____________= 1/2a X p (where a = apothem and p = the perimeter)
Bh
Area of a polygon
2
1/2h (b1 + b2)
8. What is 4 to the power of 1/2 or 4^1/2
Ray
2
1/3Bh
(n/360) X 2pi r
9. The ____________ says y - y1= m(x-x1)
G value
Added
Point slope formula
Plane
10. What is the formula to calculate the area of a rectangle
Lw
Hypotenuse
S^2
4/3 pi r^3
11. The inverse property of multiplication says that for every real number a - a cannot = 0 ther is a real number a^____such that a X a ^____ = a^____ X a =1
x
Parallel
1
Parabola
12. ___________is a quadrilateral whose opposite sides are parallel
1/2 (d)^2
Bh
Parallelogram
Acute
13. The perimeter of two similar polygons have the same ratio as the measure of any pair of corresponding line segments of the polygon
One
4pi r^2
Ratio
Quadratic formula
14. A triangle with one obtuse angle (angle greater than 90 degrees) is
((n -2) (180))/n
Ab
Obtuse
(c+d)/d
15. When proving 2 polygons are similar - what is the formula you use (hint: n= the number of sides)
((n -2) (180))/n
Bc
Transitive
Isosceles
16. An angle whose measure is larger than 90 degrees but less than 180 degrees
Obtuse angle
Area of a polygon
Plane
Triangle
17. A point has no ________or thickness
Rectangle
N!/(r!(n - r)!)
Size
Exterior angle
18. To solve a system of equations you must first make the two equations ___________to each other - then use the discrimant to find if the system has any real roots
(c - d)/d
Transitive
Equal
1/2 (d1 + d2)
19. When calculating the probability of independent events you need to __________ (words like and &' followed by' )
Pi(d) 2(pi)r
1/2 (d1 + d2)
4pi r^2
Multiply
20. The x value of the vertex of a parabola is the equation
b/2a
Equiangular polygon
Triangle
G value
21. A set of points in the seame plane equidistant from a fixed point - called its center
Ellipse
Area of a polygon
Reflex
Circle
22. An angle whose measure is 180 degrees
Reflexive
Linear substitute
Straight line
Straight
23. To calculate the diagnol of a square you multipy any ______by the _______________of 2
Scalene
Side square root
(4ac - b^2)/4a
Complex
24. In the law of proportion if a/b = c/d then (a+b)/ b =
Inverse
(c+d)/d
(4ac - b^2)/4a
Acute
25. A line that joins the midpoint of two sides of a triangle is called the__________
Index
Hypotenuse
1
Mildline
26. A line that divides a line segment into two congruent segments
Ab
Side square root
Perpendicular
Bisector
27. What is the volume of a sphere with a radius r
A x b x c
Rectangle
4/3 pi r^3
1/2 (d)^2
28. The least common multiple is the smallest quantity divisible by ______ number of the set
Every
0
Point slope formula
Linear substitute
29. A triangle with no equal sides
Subtract substitute
Scalene
Ax+ by = c
Supplementary
30. What is the surface area of a sphere with a radius r
Radius
Acute
Every
4pi r^2
31. A closed three sided figure is called a ____________
Reflex
Triangle
Extranous excluded
Chord
32. What is the formula for the area of a rhomus - (hint d= diagonal)
1/2bh
Square
(c+d)/d
1/2 (d1 + d2)
33. Every real number is a ______________
Supplementary
Perpendicular
0
Complex
34. Two angles whose sum totals 180 degrees
1/2bh
Supplementary
1
Roots
35. 1/a^n can also be written as a to the ______
Collinear
n
Acute
Multiply
36. When you see f of g replace the x in f(x) with the ___________
(n/360) X 2pi r
Hypotenuse
G value
Distance
37. What is the formula for a combination (where order matters)
N!/(r!(n - r)!)
A(bc)
(pi)r ^2
Positive
38. The perimeter of a polygon is equal to the ________of sides X the _____________ of sides
Obtuse angle
Acute
Length number
Complex
39. Once you find the roots of a radical equation you must check them to see if any are __________roots (which means they are not equal when plugged back into the original formula) these roots must be ___________
Extranous excluded
1/2 (d1 + d2)
Roots
Complimentary
40. A ray _________ divides the angle into 2 angles that have equal measure
0
1/2bh
Bisect
Chord
41. A parallelogram with right angles and equal diagonals
Y
Rectangle
Vertical
n
42. An angle whose measure is greater than 180 degrees and less than 360 degrees
1
Reflex
Point slope formula
A^3
43. If all points lie in the same plane they are __________
Distance
1/2h (b1 + b2)
Chord
Coplanar
44. If a triangle has two congruent sides then it is an _________triangle
Vertices
4/3 pi r^3
Isosceles
Hyotenuse
45. The greatest common factor is the largest __________that is common to all member of the set
Factor
Rhomus
Lw
Rectangle
46. Two distinct straight lines can intersect at most at only one point
Length number
One
Y
1
47. In the law of proportion if a/b = c/d then b/a =
Bc
4/3 pi r^3
D/c
Plane
48. The __________property of multiplicaiton for every real numver a - for every real number b ab= ba
Arc
Added
Commutative
4/3 pi r^3
49. What is the closure property of addition - for every real number a - for every real number b ______________ is a real number
Multiply
Coplanar
1/3 pi r^2 h
A+b
50. A line segment joining two poing on a circle is called a ________
Chord
(c+d)/d
Factoral
2