10/09/18
At the beginning of 2006 Facebook membership was 5.5 million, and at the beginning of 2008 the membership had increased to 58 million.
(a) Assume that the membership increases exponentially, and find an exponential growth model for Face- book membership. Let t be the time in years with t = 0 in 2006 and F(t) the number of...
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10/09/18
Solve the following equations
(a) x − 2 = 3 x (b) (1−x)(1+x)= 1 2 (c) 120e−4x = e2x (d) 3−ln(x+5) = 0
10/09/18
The solid waste generated each year in the cities of the US is increasing. The solid waste generated, in millions of tons, was 205.2 in 1990 and 220.2 in 1998.
(a) Assume that the amount of solid waste generated by US cities is a linear function of time. Find a
formula for this function by finding the equation of the line through these two points....
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10/09/18
A 30 meter borehole is to be drilled. The cost of drilling is $20 for the first meter, and the cost for drilling each additional meter is $3 more than that of the preceding meter.
(a) What is the drilling cost for the 30 meter deep borehole? (b) If you have only $1000 available, how deep a borehole can you afford?
10/09/18
Word problem for algebra class
If the greatest common factor of a and b is 3, what values are possible for the greatest common factor of a^2 and b?
10/09/18
Jack can mow the baseball grounds in 6 hours; Mike can mow the same grounds in 5 hours; and Chris can mow the grounds in 4 hours . How long will it take to m
3. Jack can mow the baseball grounds in 6 hours; Mike can mow the same grounds in 5 hours; and Chris can mow the grounds in 4 hours . How long will it take to mow the baseball grounds if jack,...
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10/09/18
How much is the student council selling each drink for?
The student council is raising money by selling hot apple cider and hot chocolate.They sold 72 apple ciders and 29 hot chocolates at the football game, raising a total of $245. They raised $139 at...
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10/09/18
f(x) = 3x+4; reflect it over the x-axis then do a horizontal shrink by a factor of 2 followed by a translation 8 units up
How would I do this? When do I use the reciprocal? I know how to reflect and do translation, but I'm confused on those horizontal/vertical shrink/stretch.
10/08/18
A comapny rents a car a $25 plus .15 per mile and B rents a car at $15 plus .20 per mile . after how many miles will they charge the same amount?
katies rent a car rents $25 plus .15 per mile and samantha's rent a car rents $15 plus .20 per mile . after how many miles will they charge the same amount? write an equation . if you had to drive...
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10/08/18
Find the time it takes for $5,100 to double when invested at an annual interest rate of 14%, compounded continuously.
help me solve this please
10/08/18
Aaron has 1,250 minutes per month on his cell phone plan. Write and solve an inequality to find the most minutes he can use if he already talked for 445 minutes
I need help
10/08/18
find the relative maxima of f(x)=cos ^2(3x) on the interval (0,4.189)
apply the first derivative test
10/08/18
Write an equation of the line
Write an equation of the line, in standard form, parallel to y = -5x + 8 and passing through the point (2, 3).
10/08/18
Solve the composition
Part A: Let f(x)= 4- (minus) the square root of x^2+1
and g(x)=x-7
then f(g(x))=?
Part B: leave answer in exact (non-decimal) form f(g(x)).
10/08/18
which side of triangle VSY is the base?
Triangle VSY is isosceles and its perimeter is less than 45. segment sv is 10. segment vy is x+7. segment sy is 2x-8.
10/08/18
y = 3x^5 − 5x^3 + 4, [−3, 3] by [−5, 10], local minimum= ( ?, ?) local maximum = ( ?, ?)
The domain and range was (- infinity, infinity), so i thought that would be the local min and max but was not. I appreciate the help.
10/08/18
Determine the type of conics each equation represents using the discriminant.
1. 2x2-4xy+8y2+7=02. 2xy-x+y-3=03.x2-y2+4=0
10/08/18
Find the speed of the plane and the speed of the wind
A plane flies 960 miles between town a and town z. When it flies from town A to Z it has a tailwind and the flight takes 8 hours while the flight in the opposite direction takes 12 hours. Find the...
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10/07/18
item sold per week for $. Decrease price and more items sold. How many items to sell to maximize revenue
A skateboard shop sells about 50 skateboards per week for $70. For each $1 decrease in price, about 1 more skateboard per week is sold. How many skateboards does the shop need to sell to maximize...
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10/06/18
How do you graph the translation of a square root function f(x) = -√-x+1
How do you graph the translation with two reflections. I have been told to distribute the negative inside the square root.
10/05/18
Probability of failure in Phase I = 50%, . phase II = 30% and phase III = 40%: So how many drugs will successfully
A pharma company tests 100 drugs on human volunteers. Probability of failure in Phase I = 50%, . phase II = 30% and phase III = 40%: So how many drugs will successfully
Need step by step...
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10/05/18
Felipe deposits $ 800 into an account that pays simple interest at a rate of 2 % per year. How much interest will he be paid in the first 6 years?
Felipe deposits $800into an account that pays simple interest at a rate of 2%per year. How much interest will he be paid in the first 6years?
10/03/18
Plotting Points/Geometry/Algebra/triangles
Given points, A(-2,7) and B(3,3), find the coordinates of two points, P and Q, that are on the perpendicular bisector of AB. What can be said about triangle PAB? Triangle QAB?
10/03/18
2500 miles is goal only biked 2040 has 13 weekends left how many miles should he bike each weekend to meet his goal
2,500 miles only biked 2,040 has 13 weekends left how many miles should he bike each weekend to meet his goal
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