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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. In order to decimal to a percentage you need to ______ by 100
Multiply
x over 100
(4ac - b^2)/4a
1
2. In a quadratic equation in 2 unknowns has the general formula ax^2 + bxy + cy^2+dx ey+ f = 0 the graph is called an __________ (if a - b and c are not zero)
Ellipse
Square
Hypotenuse
Complex
3. An angle whose measure is 180 degrees
Coplanar
Apothem
Straight
Inverse
4. A triangle whose angles all equal 60 degrees
Dependent
Hyotenuse
Ellipse
Equiangular
5. What is the surface area of a right circular cylinder with a radius of r and a height of h
Parallel
N!/ (n - r)!
2pi r^2 + 2pi rh
x
6. Every real number is a ______________
Central angle
Acute
4pi r^2
Complex
7. What is the formula for the area of a triangle
Hyotenuse
Rhomus
1/2bh
Ab
8. In a function the x value is the ___________variable
Downward
Dependent
N!/(r!(n - r)!)
Bh
9. 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 ___________
A x b x c
Supplementary
Equilateral
Extranous excluded
10. To find the x intersept we need to make __________= 0
Y
1/3 pi r^2 h
4pi r^2
Equal
11. A collection of points lying on a flat surface that extend indefinitely in any direction
Exponent
Y
Linear substitute
Plane
12. The _______says for every reals number a - for every real number b and for every real number c - a(b+c) = ab + ac
Distributive
Trapezoid
Complimentary
D/c
13. A _________ number is a number that can be written in the form of a + bi
Roots
Apothem
Complex
A^3
14. In a quadratic equation with 2 unknown which has the formula ax^2 + bxy + cy^2 + dx + ey + f the graph is _____________ or a pair of __________ if ( b^2-4ac= 0) which may be coincident or it does not exist
Bisector
Quadratic formula
Adjacent
Parabola parallel line
15. Two angles whose sum totals 90 degrees
Bh
Y
Complimentary
Rectangle
16. What is 4 to the power of 1/2 or 4^1/2
4pi r^2
Equal
Chord
2
17. When calculating the probability of independent events you need to __________ (words like and &' followed by' )
Obtuse
A(bc)
Multiply
1/2 (d)^2
18. In a quadratic formula if the a value of the parabola is less than 0 the parabola opens ___________
Factor
Downward
Pi(d) 2(pi)r
Factoral
19. The perimeter of two similar polygons have the same ratio as the measure of any pair of corresponding line segments of the polygon
2
Ratio
Distance between 2 points
Square
20. How do you calculate the area of a parallelogram - what is the formula
Bh
Exterior angle
Ellipse
Apothem
21. The surface area of a cube is what formula
Collinear
Parallel
6a^2
n
22. The __________property of multiplicaiton for every real numver a - for every real number b ab= ba
Commutative
Quadratic formula
Supplementary
Radius
23. 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
Equal
Addition subtration
Supplementary
Collinear
24. A line segment joining two poing on a circle is called a ________
(c+d)/d
Chord
Rhomus
Every
25. The __________of a triangle is a line segment from a vertex of the triangle perpendicular to the opposite side
Angle
Altitude
Associative
Lw
26. A ___________is a figure with the same number of sides as angles
n
Congruent
Polygon
Arc
27. In complex numbers the square root of -1 = ______
(pi)r ^2
I
Size
N!/ (n - r)!
28. What is the formula for a square if you only know the length of the diaganol
G value
Acute
1/2 (d)^2
Dependent
29. What are the 2 formulas to calculate the circumference of a circle
Congruence
Pi(d) 2(pi)r
1/3Bh
Median
30. When solving a system of equation with 2 quadratic function - first __________ one equation from the other equation to find isolate one variable - solve for that variable - then ______ and solve for the other variable
Subtract substitute
Distance between 2 points
Obtuse
Inverse
31. When proving 2 polygons are similar - what is the formula you use (hint: n= the number of sides)
Distance between 2 points
Altitude
((n -2) (180))/n
b/2a
32. What is the formula for a combination (where order matters)
Secant
Point line
Supplementary
N!/(r!(n - r)!)
33. To calculate the diagnol of a square you multipy any ______by the _______________of 2
1/3Bh
Quadratic formula
Side square root
Scalene
34. A rhomus with a right angle
Mildline
Square
Vertices
(c - d)/d
35. A portion of a circle is called an ________ of the circle
Arc
Parabola
Supplementary
Point slope formula
36. A parallelogram with right angles and equal diagonals
G value
Equal
Parabola parallel line
Rectangle
37. That points of intersection on a triangle are called its _____________
Complex
Right
Parallelogram
Vertices
38. The y value of the vertex of parabola is the equation
4/3 pi r^3
Lw
Added
(4ac - b^2)/4a
39. The __________ of a regular polygon is the segment joining an vertex with the center of the polygon
Extranous excluded
Congruence
Reflex
Radius
40. What is the surface area of a sphere with a radius r
Subtract substitute
Factor
4pi r^2
S^2
41. If a triangle has two congruent sides then it is an _________triangle
Pi r^2 h
Distance between 2 points
Isosceles
Perpendicular
42. A triangle with no equal sides
Associative
D/c
Scalene
Pi(d) 2(pi)r
43. What is the volume of a sphere with a radius r
A^3
0
Complex
4/3 pi r^3
44. The _________property of addition says that for every real number a - for every real number b for every real number c (a+b) + c = a + (b+c)
Dependent
Associative
Supplementary
Exponent
45. Wha tis the volume of a right circular cylinder with a radius of r and a height of h
Regular polygon
Pi r^2 h
Congruence
x over 100
46. A line that divides a line segment into two congruent segments
0
Y
Bisector
One
47. The _______ tells how many times the root needs to be multiplied by itself
Triangle
Index
Ab
Equiangular
48. A point has no ________or thickness
Bisect
Commutative
Size
G value
49. The possible solution of a quadratic equatin ax^2 + bx + c= 0 are called the_______
Roots
Isosceles
Isosceles
x over 100
50. A closed three sided figure is called a ____________
Bc
Apothem
Triangle
Hyotenuse