Algebra
Solve for x: 5x-(x-18)=6-2(x+15)
x= -7
What is the ratio of the opposite side divided by the adjacent side called (think buttons on the calculator)?
Tangent
What is the solution to the equation 22x-5 = 8x-1?
x= -2
What is the distance from the actual point to the predicted point on a line of best fit called?
Residual
What is the name for a function to the degree of 5?
What is a quintic function?
Write an equation in slope intercept form with this information: (1,2) and m=-3
y=-3x+5
What is an area of a circle with a radius of 12 cm?(round to the nearest hundredth or leave it in terms of pi)
144𝝿 or 452.39
Provide one of the solutions to this equation: x4 - 27x2 - 14x + 120 = 0
X=-4, X= -3, X=2, or X=5
A set of numbers has a mean of 134. Two numbers, 100 and 168, were added to the set. What will happen to the mean of the set?
The mean will not change.
What is the name of a triangle with three equal sides and three equal angles?
What is an isosceles triangle?
If 2x3-9x-7 is subtracted from 8x3-2x2+5x-6 is equal to Ax3+Bx2+Cx+D, then A+B+C+D=?
19
What are the coordinates of R', the image of R (2, 4) after a counterclockwise rotation of 90 degrees about the origin?
(-4,2)
What is the value of
(3 + 2i) 4 where i=√ −1?
-119+120i
For a given confidence level, what happens to the margin of error as the sample size decreases?
The margin of error increases.
What method is used to find upper and lower bounds?
What is standard deviation?
If 𝜃 is a third-quadrant angle with cos 𝜃 = -7/12 what is the value of tan 𝜃?
√95/7
A sphere with volume 36π cm3 is remolded into a right circular cone with the same radius as the sphere. What is the height of the cylinder?
4cm
An isosceles triangle has two congruent sides of length five with an included angle of 40 degrees. What is the length of the third side?
3.420
If two dice are rolled, what is the probability that the sum of the upturned faces is divisible by 3 (fraction)?
1/3
What mathematical principle applies to addition and multiplication but not subtraction or division?
What is the communitive property?
Bob and Rob invest $6000. Bob invests at a rate of 1.5% compound interest. Rob invests in a simple interest account. After 8 years, their investments are worth the same. What was Rob's interest rate?
1.58%
A quadratic function with one root 2-i has a maximum value of -3. What is the y-intercept of its graph?
-15
What is the average rate of change of √ (x2+x+5) on the interval (2,4)?
0.842
The 95% confidence interval found for the difference between sexes of the mean weight of a certain species of worms was 6.45 ± 4.02. What was the most likely p-value?
0.003
What is a 15-sided polygon called?
What is a pentadecagon?