08/06/15

If x = a +bv3, where a and b are integers, and x^2 = 97 +56v3, what is the value of ab?
I thought I just needed to square root 97 and 56 and multiply. Now that I think about it, I seem stupid. I don't think that's how I was supposed to do. Please help. Thank you!
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08/06/15

The variable Z is directly proportional to X. When X is 12, Z has the value 228. What is the value of Z when X = 18
 The variable Z is directly proportional to X. When X is 3, Z has the value 57.What is the value of Z when X = 8
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08/05/15

Write an expoential function showing the relationship between y and t.
There was a sample of 750 milligrams of radioactive substance to start a study.Since then, the sample has decayed by 1.2% each year.Let t be the number of years since the start of the study. Let y... more
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08/05/15

Need a little help with an Algebra 2 problem
A chef is using a mixture of two brands of Italian dressing. The first brand contains 9% vinegar, and the second brand contains 14% vinegar. The chef wants to make 210 milliliters of a dressing... more
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08/04/15

evaluate the integral
∫x(t+4)^2dt   0   I hope you can understand this x is on top 0 is on bottom
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08/04/15

INsanely Hard Question
The angle θ satisfies cos(θ) = 1/4 and sin(θ) < 0 Find the value of sin(θ + pi/2) Find the value of sin(pi − θ) Show all work and explain your reasoning
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08/03/15

The capacities of two trucks are 3 tons and 4 tons respectively. If the smaller truck makes 18 more trips than the larger, it can deliver 12 more tons of freigh
The capacities of two trucks are 3 tons and 4 tons respectively. If the smaller truck makes 18 more trips than the larger, it can deliver 12 more tons of freight than the larger. How many trips... more
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08/03/15

How many pounds of cashew nuts worth 75 cents a pound must be mixed with 10 pounds of pecans worth $1.50 a pound to make a mixture worth $1.00 a pound? Which o
How many pounds of cashew nuts worth 75 cents a pound must be mixed with 10 pounds of pecans worth $1.50 a pound to make a mixture worth $1.00 a pound?Which of the equations could be used to solve... more
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08/03/15

A jet travels 3860mi against a jetstream in 5 hours and 4610mi with the jetstream in the same amount of time.
A jet travels 3860mi against a jetstream in 5 hours and 4610mi with the jetstream in the same amount of time. What is the rate of the jet in still air and what is the rate of the jetstream?
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08/03/15

what should the dimensions of the rectangle be?
marcus has 88 feet of fencing. He wants to build a rectangular pen with the largest possible area. 
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08/03/15

write a rule to describe the function. After how many days will the zucchini plant be 0.25 meters tall?
a zucchini plant in Darnell's garden was 9 centimeters tall when it was first planted. Since then, it has grown approximately 0.8 centI ethers per day.
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08/02/15

Quadratic - speed, distance, time
On a journey of 100km, Jim travels at a certain speed for the first 60km, and then increases his speed by 15km/h for the remainder. If the whole journey takes 2 hours, find his two speeds.
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08/01/15

Really Hard Logarithmic Question
simplify 9^(log7)/(log3) without a calculator and showing all steps 
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08/01/15

radical notation
Write  the expression in radical notation;(6x)1/4    
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08/01/15

range of 1/2cosx - 1
from chapter relation and function
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08/01/15

3000 is distributed among A B and C such that A gets 2/3 of what B and C together get and C
3000 is distributed among A B and C such that A gets 2/3 of what B and C together get and C gets 1/2 of what A&B together get find C share   A+B+C=3000                                      ... more
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07/31/15

What is a discriminant and how do I do this?
Use the discriminant to find the number of real solutions of the equation 3x^2 – 5x + 4 = 0. 
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07/31/15

Determine when the person was murdered?
Police arrive at a murder scene at 3:30a.m and immediately record the body's temperature which was at 92F. At 5:00a.m after thoroughly inspecting and fingerprinting the area, they again took the... more
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07/30/15

Determing the constant speed of a motorboat
A motorboat heads upstream a distance of 24 miles on a river with current running 3 miles per hour. The trip up and back takes 6 hours. Assuming the motorboat maintained a constant speed relative... more
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07/30/15

Please help me :( question below.
The variable Z is directly proportional to X, and inversely proportional to Y. When X is 6 and Y is 6, Z has the value 12. What is the value of Z when X = 13, and Y = 10
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07/29/15

Ratios question
Individual bags of sand and concrete in a ratio of 2/3 totals 1000 lbs. If you add X number bags of sand, and the new ratio is 4/5, how many bags of sand is X?
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07/28/15

what is 15 and 3 fifths percent as a fraction in simplest form
I have a what is problem for you to answer for me please. I need help and tutoring help. that would be great if you could answer for me, thank you.
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07/28/15

find possible functions
If h(x) = 4+1/(sq root of x-5), find possible functions f and g so that h(x)= (fog)(x). DO NOT DO NOT DO NOT use f(x)=x or g(x)=x. Check solution
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07/28/15

If p of the coworkers fail to contribute, which represents the additional amount that each of the remaining coworkers must contribute to pay for the lunch?
The whole question: To celebrate a colleague's graduation, the m coworkers in an office agreed to contribute equally to a catered lunch that costs a total of y dollars. If p of the coworkers fail... more
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07/28/15

Which of the following functions describes the cost, in dollars, of a phone call between these two cities that lasts for N minutes, if N is a positive integer?
The whole question: The rate for a telephone call between City A and City B is 50 cents for the first minute and 30 cents for each additional minute or portion thereof. Which of the following... more
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