Solve for x:
3x+7=25
x=6
What is the sum of the interior angles in a hexagon?
720 degrees
What is the inverse is f(x)= of the function:
f(x)=square root 2 (x-2) +5
f-1(x)=(x-5)2+2
Factor x2 - 9x + 20
(x - 4)(x - 5)
A jacket is $60 and is on sale for 25% off. What is the sale price?
$45
Find the value of sin 30 degrees
1/2
Simplify:
4(2x-5)-3x
5x-20
Determine the volume of a cone with a diameter of 18 inches and a height of 7 feet. (Round to the nearest tenth of a cubed foot)
4.1 feet cubed
Solve for x: 2x+1 = 6 , round to the nearest tenth.
x = 1.6
Factor: (x + 2)2 +4(x + 2) + 3
(x + 5)(x + 3)
A coin is flipped twice and both times it landed on heads. What is the probability the coin lands on tails on the third toss?
1/2
ABC is a right triangle and angle B=90o. AB=7cm, angle A =64o. Calculate the length of BC rounded to the nearest hundredth.
The length of BC is 14.35 cm
Simplify:
(3x2y3)2
9x4y6

4/3
Solve for x:
log2(7x +3)/x = 3
x = 3
Factor completely: x4 - 10x2 + 9
(x-1)(x+1)(x-3)(x+3)
simplify log2
1/2log x-3log y- log z
log(sqrt(x)/(zy^3))
Given Triangle DOG~CAT, where <G and <T are right angles. Which expression is always equivalent to Sin D?
Cos A
Write an equation in slope-intercept form for the line that passes through (-3, 5) and is perpendicular to the line 2y = -3x + 5.
y = 2/3x +7
Segment RAZ has endpoints with coordinates R(6,6) and Z(-12,-3). If A divides RZ such that RA:AZ = 5:4, then what are the coordinates of A?
(-4,1)
Find the vertical asymptotes of (x2+3x-12) / (x2-8x+15)
x=3 and x=5
Factor:
8x3-27
(2x-3)(4x2+6x+9)
Using each of the letters of the word "HOFSTRA" exactly once, compute the number of 7-letter arrangements that can be made of each arrangement begins and ends with a vowel.
240
No because Tan(180)=0 and csc(180)=undefined
Solve for all values of x to the nearest hundredth.
4x2-40x+50=0
x=1.46 x=8.54
What is the angle measure for one interior angle of a regular polygon that has 15 sides?
156 degrees
$2934
Factor 6x3−4x2−16x completely.
2x(3x+4)(x-2)

L, M and N are the midpoints of the sides AB, BC and CA of triangle ABC.
AM, BN and CL intersect at G.
If BN = 15 units, then what is the length of BG?
10 units
Solve for all values x, in the interval from [0, 180o].
6sin2x + 5sin x - 4 = 0
30o and 150o