04/17/19
Probability / Stats
If you roll a pair of dice 4 times, what is the probability of not rolling any doubles?One game might involve 150 rolls of the pair of dice, what is the expected value for the number of doubles in...
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04/17/19
Given an arithmetic sequence with a thirteenth term, a13 = −111, and a common difference, d = 11, find the 5th term: a5 = ?
a5 = −199a5 = −210a5 = −188a5 = −221
04/17/19
In the above triangle, if a = , b = 1, and c = 2, then which of the following is equal to sin(30°)?
5.In the above triangle, if a = , b = 1, and c = 2, then which of the following is equal to sin(30°)? A. B. C. D.
04/17/19
help please thank you
4.The shorter leg of a 30°-60°-90° triangle measures 5 inches. What is the length of the longer leg? A. inches B. inches C. inches D. inches
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04/17/19
help please thank you
3.If X = 18 inches, Y = 80 inches, and Z = 82 inches, what is the cosine of B? A. B. C. D.
04/17/19
Solve the equation for x if 0 ≤ x < 2π. Give your answer in radians using exact values only. (Enter your answers as a comma-separated list.) 2 cos2 x − sin x − 1 = 0
Solve the equation for x if 0 ≤ x < 2π. Give your answer in radians using exact values only. (Enter your answers as a comma-separated list.)2 cos2 x − sin x − 1 = 0
04/16/19
Geometry Question
A cylinder and a cone have the same volume. The cylinder has a radius of 2 inches and a height of 3 inches. The cone has a radius of 3 inches. What is the height? PLEASE HELP!!!
04/16/19
There is 1 yellow marble, 2 green marbles, 4 red marbles, and 5 blue marbles in a bag. Once a marble is drawn, it is replaced. Find the probability of each outcome.
The 2 questions I have to fill in: Q1. P(two green marbles in a row) and Q2: P(a yellow then a blue marble)
04/16/19
If csc of theta is greater than zero, which quadrant(s) could the terminal side of theta lie?
04/16/19
Sequences & Series
Problem:A cell phone company plans to market a new smartphone. They have already sold 510 units during the first week of the campaign. They plan to increase sales by 12% each week. For example,...
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04/15/19
Consider Fido’s domain limited by a 10-foot long leash is tethered to the corner of his expansive 7 by 5 - foot dog-mansion. How much outdoor territory can he mark?
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04/15/19
Permutations and combinations
At a competition with 5 runners 5 medals are awarded for first place through fifth place each medal is different how many ways are there to award the medals decide if the situation involves a...
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04/15/19
the length of one side is 8 inches and the length of the apothem is 9 inches what is the area
the stop sign is a regular octagon
the perimeter of a rectangular field is 374 yd. The length of the field is 5 yards less than triple the width. what are the dimensions of the playing field
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04/15/19
area of the box
the formula a=6 squared can be used to find the surface area of a cube that has side lengths of s units use the formula to find the surface area of the box 8.5in 8.5 in 8.5 in
04/15/19
Consider the functions f(x) and g(x)
Consider the functions f(x)=-5x+1 and g(x)=-1/5(x-1)a)find f(g(x))b)find g(f(x))c)determine whether the functions f and g are inverses of each otherd)give any values of x that need to be excluded.
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"Simple" algebra question?
If 2x2 + 8y = 121.5 and x2 - 8y = 121.5, then x =
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