06/14/17
Probability
A bag of jelly beans contains 10 red, 6 green, 7 yellow, and 5 orange jelly beans.
a) What is the probability of selecting a red jelly bean, replacing it, and then selecting an orange jelly...
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05/26/17
Probability Question
A radio disc jockey has 7 songs on this upcoming hour's playlist: 3 are rock songs, 2 are reggae songs, and 2 are country songs. The disc jockey randomly chooses the first song to play, and then...
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05/25/17
help please
tan^3(θ)=3tan(θ) solve for all solutions.. please provide steps so I can follow
05/25/17
What are the odds of this occurring?
There are numbers from 1 to 2500. There are 625,000 people. What are the chances that 3 people pick the same 4 numbers?The order does not matter and the people cannot repeat.
05/20/17
factor using special product formulas
Factor using special product formulas: b^(8)+a^(2)b^(4)+ 1/4 a^(4).
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05/20/17
Prove That a Number is Divisible by Another Number
Prove that the value of the expression: (125^2+25^2)(5^2–1) is divisible by 39
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05/20/17
An executive invests $28,000, some at 5% and some at 4% annual interest. If he receives an annual return of $1,260, how much is invested at each rate?
college math question that I cannot solve.
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05/20/17
log432=? Your answer will be a fraction. Type the numerator, then a /, then the denominator, with nothing else. Hint: Notice that both 4 and 32 are po
log432=?. Your answer will be a fraction. Type the numerator, then a /, then the denominator, with nothing else. Hint: Notice that both 4 and 32 are powers of 2.
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05/10/17
How do I solve this?
Which kind of function best models the data?Write an equation to model the data.
1. (-4,-32),(-2,-8),(0,0),(2,-8),(4,-32)
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05/10/17
Michael went on a bike ride of 60 miles. He realized that if he had gone 8 mph faster, he would have arrived 10 hours sooner. How fast did he actually ride?
Michael went on a bike ride of 60 miles. He realized that if he had gone 8 mph faster, he would have arrived 10 hours sooner. How fast did he actually ride?
05/08/17
Sounds like a dual equation, but I am having difficulty
Joe has a collection of nickels and dimes worth $7.10. If the number of dimes were doubled and the number of nickels increased by 10, the value of the coins would be $13.40. How many dimes does he...
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05/08/17
A rectangular parking lot has a perimeter of 800 ft. An inequality representing the parking lot is x(400 − x) > 30,000.
its really important for school
04/27/17
Word Problem
The logistical growth function f(t) = 77,000/1 + 1539.0e^-1.3t models the number of people who have become ill with a particular infection t weeks after its initial outbreak in a paticular...
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04/24/17
Minimize the area of the triangle.
A right triangle is formed in the first quadrant by the x- and y- axes and a line through the point (2,3). Find the vertices of the triangle so that its area is minimum.
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04/22/17
Write a polynomial of least degree with rational coefficients so that P(x)= 0 has the given root. 2-3i
Please help. due very soon and I'm confused
04/22/17
use newtons method to approximate the indicated root
Use Newton's method to approximate the indicated root of the following equation correct to six decimal places.The root of 2x^3−6x^2+3x+1=0in the interval [2,3].
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04/18/17
math help plz
Jim began a 102 -mile bicycle trip to build up stamina for a triathlete competition. Unfortunately, his bicycle chain broke, so he finished the trip walking. The whole trip took 4 hours. If Jim...
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04/16/17
How many students are in the school?
A certain school has 40 teachers and each teacher teaches 4 classes. Each class has 30 students and 1 teacher. Each student takes 5 classes. How many students are in the school?
04/15/17
Worded Probability
There are seven tiles:
1,1,3,3,3,5,5
Tom takes a tile at random.
He does NOT replace the tile.
Tom then takes another tile at random.
Calculate the probability that the number on the second...
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04/13/17
Binomial Proportions
On a multiple choice test with ten questions with five choices for each question if a student guesses at every answer find the probability of the following....
A) more than 4 correct...
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04/06/17
A segment of a circle has a 120 arc and a chord of 8in.
A segment of a circle has a 120 arc and a chord of 8in. Find the area of the segment.
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03/30/17
How many different rearrangements of the letters in the word POSSESSION are possible if the letter E must come before the letter P?
Permutation Question
03/28/17
X^3-4x^2+x+6 what is the product root of the function
ANWSER choice 4,-36,-6,6
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03/22/17
finding the critical points of a function. I am a little stumped after I take the first dereivative.
If U and V are positive constants, find the critical point of the function.
F(t) = Uet + Ve-t
My work:
F'(t) = Uet + -Ve-t
0= Uet - Ve-t
after this I have no idea how to find the critical...
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03/22/17
ten songs on each CD. How many different CD's can she make from 7 genres?
Clara Nett is making music CDs for her friends. She wants to put ten songs on each CD. How many different CD's can she make from the following genre of music: country, rock, rap, classical, easy...
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