08/12/19

math probability word problem
A bowl contains 6 balls, marked with the numerals 1 through 6. If two balls are picked out at random, what is the probability that numbers 5 and 6 will both be picked?(1) 1/30 (4)1/6(2) 1/15 ... more
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08/11/19

Probability and Events
Events A and B are associated with the following probabilities.P(A)=1/2P(B)=1/3P(B|A)=1/6Are the events A and B dependent or independent and why?Answers:Events A and B are independent, because... more
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08/11/19

I have a question about geometry. How do you solve Given that r||s and q is a transversal, we know that by the [________]?
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08/08/19

If y= Find dy/dx
y= (4x-5)^3 (4x+2)^3 find dy/dx how do i solve this problem to find dy/dx?
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08/08/19

calc 1 related rates

A hot air balloon rising vertically is tracked by an observer located 5 miles from the lift-off point. At a certain moment, the angle between the observer's line-of-sight and the horizontal is  ,... more
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08/06/19

if the product of the intercepts made by the straight line x tan alfa +y sin alfa =1(0<alfa<pi/2)on the coordinate axes in equal to sin alfa ,find alfa
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08/05/19

y varies directly as x and inversely as the square root of z. y=32 when x=100 and z=5. Find y when x=3 and z=12
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08/03/19

Solve the Systems of Linear Equation
3x + 7y + 8z = 41x - 2y - 7z = -24x + y - 2z = -3
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08/03/19

Finding the Parallel Line
Find integer values for a and b that make ax + by = 14 parallel to 12 − 3y = 4x. Is there more than one answer? If so, how are the different values for a and b related?
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08/03/19

Given f'(x) = e^kx find k by finding the gradient of a tangent that intersects f(x) at (1,e^2) and also passes through the origin
A curve for which f'(x)= e^kx where k is a constant, is such that the tangent at (1,e^2) passes through the origin find the gradient of the tangent to determine k and then integrate to find... more
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08/02/19

Help me understand this question.
One of the largest issues in ancient mathematics was accuracy—nobody had calculators that went out ten decimal places, and accuracy generally got worse as the numbers got larger. The famous... more
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07/31/19

Probability geometry

How many different ways can 15 questions on a true-false test be answered if a student answers every question
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07/30/19

20 divided by 5(1+3)
Need a answer 20/5(1+3) anybody know answer I got 16 others are getting one
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07/28/19

The pasture is 60 yards long and 30 yards wide.How many feet of fencing do you need to buy
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07/28/19

Solve the systemic eauation 2y+3=x and 4x+5y=5 using substitution
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07/28/19

A garden table and a bench cost $1046 combined. The garden table costs $96 more than the bench. What is the cost of the bench?
A garden table and a bench cost $1046 combined. The garden table costs $96 more than the bench. What is the cost of the bench?
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07/28/19

Standard form of 26/5
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07/27/19

Raising average scores from 87% to 90%
I am looking into customer satisfaction surveys and out of 97 surveys this month, our store has a satisfaction rate of 87%. How many 100% surveys are needed to hit a 90% satisfaction rate this month? more
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07/27/19

A Pet shop sums
A pet shop sells parrots, rabbits and hamsters. there are 4 times as many parrots as hamsters in the shop. There are a total of 100 heads and 272 legs. How many animals of each kind are there?
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07/27/19

Could you please help me with this question : explaining your step-by-step approach to solving the problem below
You are moving and need a rental truck. The rental company you have chosen charges a $70/day fee plus $0.20 for every mile you travel. Write a linear equation that expresses the total cost y,... more
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07/27/19

Find the value of the following expression
-5x-y. For x= 7 and y = -11
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07/26/19

Growth and Decay in math, Writing the Function as well.
8,000,000 bacterium were introduced to an anti-bacterial agent that reduced the bacteria by a factor of 1/2 every 9 hours. How many bacteria remain after 22 hours? (round to the nearest whole... more
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07/26/19

Write the quadratic equation whose roots are 2 and 5, and whose leading coefficient is 5.
Write the quadratic equation whose roots are 2 and 5, and whose leading coefficient is 5.(Use the letter x to represent the variable.)
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07/26/19

Reduce the fraction 28/132 to its simplest form

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07/26/19

How do I solve this question, I don't understand.
First, create 3 equations of the form ax + by + cz = d, where a, b, c, and d are constants (integers between – 5 and 5). For example, x + 2y – z = -1. Perform row operations on your system to... more
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