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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
Commutative
Bisect
Pi r^2 h
2. What is the formula for a combination (where order matters)
Circle
N!/(r!(n - r)!)
Linear substitute
Multiply
3. A triangle with three acute angles (less than 90 degrees)
Radius
Obtuse
1
Acute
4. A __________________ is a circle passing through all the vertices of a polygon
Circumscribed circle
Rectangle
1/2bh
Length number
5. What is a quadrilateral with 2 and only 2 sides parallel
Trapezoid
Straight line
Quadratic formula
1/3Bh
6. 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
N!/ (n - r)!
(n/360) X 2pi r
Associative
Equal
7. Two lines are said to be ______________ if they intersect and form right angles
Negative
Perpendicular
Obtuse angle
Supplementary
8. The __________property of multiplicaiton for every real numver a - for every real number b ab= ba
1/2bh
Line
Commutative
Side square root
9. The associative property of multiplicaiton for every real number a - for every realy number b for every real number c (ab)c = ______
Negative
Y
Vertical
A(bc)
10. A ___________is a figure with the same number of sides as angles
1/2h (b1 + b2)
Plane
Polygon
S^2
11. When calculating the probability of mutually exclusive event y (can not occur simultaniously) you need to ______their seperate probabilities (uses the word 'or')
Exponent
Added
Symmetric
Subtract substitute
12. x= - b (+ or -) square root of (b^2-4ac) divided by 2a - is called the _____________ and can be used to find the roots of a problem
Point line
Quadratic formula
Slope
Perpendicular
13. A portion of a circle is called an ________ of the circle
Straight
Isosceles
Downward
Arc
14. A triangle with no equal sides
Factor
Ab
Associative
Scalene
15. What is the closure property of multiplication for every real number a - for every real number b _________ is a real number
Parabola
Coplanar
Ab
A(bc)
16. Is a polygon that is both equilateral and equangular
Secant
Parabola parallel line
Commutative
Regular polygon
17. A triangle whose sides are equal
Reflex
Secant
Mildline
Equilateral
18. In the law of proportion if a/b = c/d then (a - b)/b =
Slope
Pi(d) 2(pi)r
Obtuse
(c - d)/d
19. Log base b to the b^x =
x
0
0
Polygon
20. If a triangle has two congruent sides then it is an _________triangle
Bc
Area of a polygon
Isosceles
Consecutive angles
21. If you want to convert a fraction to a percentage you need to make it =
Negative
x over 100
Radius
Factoral
22. 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
Chord
Coplanar
Subtract substitute
Rectangle
23. The value of y where a point intersects the x axis = __________
Length number
Circumscribed circle
Plane
0
24. What is the formula for the area of a triangle
1/3Bh
Circumscribed circle
Hypotenuse
1/2bh
25. A line segment connecting a vertex of a triangle and the midpoint of the opposite side is called a __________ of a triangle
Area of a polygon
Median
Associative
Collinear
26. What is the volume of a cone
1/3 pi r^2 h
Hypotenuse
Added
Acute
27. Two or more distinct lines are said to be ____________ if and only if they are coplanar and they do no intersect
Rectangle
Parallel
Exponent
Line
28. What type of trapezoid has its non parallel sides equal
Plane
Regular polygon
Arc
Isosceles
29. A triangle with one obtuse angle (angle greater than 90 degrees) is
Obtuse
Right angle
Circumscribed circle
2
30. Angles that are equal
Bh
Parallelogram
Congruent
6a^2
31. To calculate a permutation (order does not matter) what is the formula
N!/ (n - r)!
Isosceles
Function single
Bc
32. What is the square of ((x1-x2) + (y1- y2)) =
Every
Distance between 2 points
Subtract substitute
2pi r^2 + 2pi rh
33. A triangle with a 90 degrees angle
Right
Y
Ellipse
Supplementary
34. The greatest common factor is the largest __________that is common to all member of the set
1/2 (d)^2
Length number
Factor
G value
35. A rhomus with a right angle
Square
6a^2
Pi r^2 h
Addition subtration
36. A __________of a circle is a line segment drawn from the center of the circle to any point on the circle
Radius
Regular polygon
One
Multiply
37. The __________ of a regular polygon is the segment joining an vertex with the center of the polygon
Scalene
Circle
Parabola parallel line
Radius
38. i^2 = _____________
Line
1
Arc
I
39. In order to decimal to a percentage you need to ______ by 100
Circle
1/2bh
Multiply
Subtract substitute
40. When you find the inverse of a function switch the x value with a ____ - solve for y
Secant
Ab
Y
Circumscribed circle
41. What is the formula for the area of a rhomus - (hint d= diagonal)
Median
Line
1/2 (d1 + d2)
Every
42. The side of a right triangle opposite the right angle
Isosceles
Hypotenuse
(pi)r ^2
Factor
43. Every real number is a ______________
Acute
Equiangular polygon
Perpendicular
Complex
44. An angle whose measure is 180 degrees
Bisect
Straight
Bh
Subtract substitute
45. 1/a^n can also be written as a to the ______
One
N!/ (n - r)!
Pi r^2 h
n
46. The _______says for every reals number a - for every real number b and for every real number c - a(b+c) = ab + ac
Distributive
One
Bh
(c+d)/d
47. A closed three sided figure is called a ____________
Triangle
Circumscribed circle
Bisect
Distance
48. The sum of the interior angles of a triangle = ___________
Length number
A(bc)
180
1
49. In the law of proportion if a/b = c/d then (a+b)/ b =
Isosceles
Rhomus
Factor
(c+d)/d
50. Three or more points are said to be ___________if an only if they lie on the same line
b/2a
Quadratic formula
Congruent
Collinear