02/13/14

20 decreased by 2 times a number is the same as 5 time the number increased by 4. what is x?
i tried but got a fraction but that aint possible  
Follows • 3
Expert Answers •2

02/13/14

Find the approximation?
If the integral of (x^2-2x+2)dx from 0 to 6 is approximated by a lower sum using three inscribed rectangles of equal width on the x-axis, find the approximation. 
Follows • 3
Expert Answers •2

02/13/14

Find d^2y/dx^2?
If x=sin t and y=cos^2 (t), find d^2y/dx^2 at t=pi.   Can you please find d/dt and dy/dx? That's the only thing I need to solve the problem since I know dx/dt. 
Follows • 3
Expert Answers •2

02/13/14

Evaluate without the aid of a calculator if possible.
Evaluate without the aid of a calculator if possible.   a. 7 log  0.1 + 6 = ?            b. Log based 10  ^ 1                                                                       10   c. 5... more
Follows • 4
Expert Answers •3

02/13/14

How do I condense complex logarithms?
I'm stuck on a problem: log2(2x+6)-log2(x-1)=log23 I haven't learned how to do it, and I can't seem to find an example or a step-by-step. Please help!
Follows • 4
Expert Answers •3

02/13/14

how can I find the equation of a line that passes through (-4,-8) and has undefined slope?
The topic of this problem is "Use the Point-slope Equation of a line.
Follows • 5
Expert Answers •3

02/12/14

How do I expand a log with a square root?
How would I expand log5 (7√x)?
Follows • 3
Expert Answers •2

02/12/14

Probablity question
At a hospital, in a sample group,  there are 40 patients who have lung cancer and 30 patients who are smokers.  Of these, 25 smoke and have lung cancer.  If the hospital currently has 200 patients... more
Follows • 4
Expert Answers •3

02/12/14

algebra< odd number
1. the ages is  of juan and his sister add up to half their father's age> if juan is 3 yrr than older than his sister and 27 yr younger than his father how many yrs old is juan   2.altogether,... more
Follows • 5
Expert Answers •4

02/12/14

Use elimination to find the solution to the system of equations.
4x+5y=30   5x-6x=36
Follows • 3
Expert Answers •2

02/12/14

what is the order pairs for 6x+7y=4 a=(3,6)b=(3,-2)c=(-2,3)
a=(3,6) b=(3,-2) c=(-2,3)
Follows • 3
Expert Answers •2

02/11/14

Use the formula y = Ca^x to determine the constants C and a.
Use the formula y = Ca^x to determine the constants C and a.   (0,9) and (1,3)      C = ?
Follows • 3
Expert Answers •2

02/11/14

Evaluate the expressions. y = f(x), X =f(x)
Evaluate the expressions. y = f(x), X =f(x)   a. f(-1) = ?   b. f^-1(3) = ? c. f^-1(0) = ? d. (f^-1 * f)(3) = ?
Follows • 2
Expert Answers •1

02/11/14

Joe Cool drives to see his girlfriend who attends another college. The 161 km trip takes 2.0 h. What was the average speed for the trip?
needs help
Follows • 3
Expert Answers •2

02/11/14

can you state what b = ? and what m = ? for y = 1/3 x - 3 and y = -3x + 3
y=1/3x-3 and -3x+3 
Follows • 3
Expert Answers •2

02/11/14

Is Real Analysis useful for electrical engineering majors?
Is Real Analysis useful for electrical engineering majors? Is Real Analysis pure math? Can this course be helpful to invent electronic devices for EE majors?
Follows • 3
Expert Answers •2

02/11/14

word problem.
i am a number less than 3000. when u divide me by 32, my remainder is 30 and when you divide me by 58, my remainder is 44? how do i solve?
Follows • 5
Expert Answers •4

02/11/14

Museum passes cost $5 for adults and $2 for children. One day the museum sold 1820 passes for $6100. How many of each type were sold?
I need this answer now! Please help me!
Follows • 3
Expert Answers •2

02/11/14

What are the statements and reasons for if the given is EA=SY and the prove is ES=AY
How to solve this question
Follows • 2
Expert Answers •1

02/11/14

how to turn fractions into whole numbers
18  — = I don't know exactly how to begin  9    
Follows • 4
Expert Answers •4

02/11/14

Prove tan(a+b)
Q 5 (a) prove that     tan(A+B) =    tan A+tan B                                                   __________                                                    1- tan A tan B        (b) show... more
Follows • 3
Expert Answers •2

02/11/14

Q4 c1 is the circle x² + y² -4y-20=0 and l is the line 2x-y+5=0
Q4 c1 is the circle x² + y² -4y-20=0 and l is the line 2x-y+5=0 (a) write down the centre and radius lenght of c1(b) Find the perpendicular distance from the centre of c1 to the line l in surd... more
Follows • 2
Expert Answers •1

02/11/14

Came across this problem in my assignment... Not sure what to do.
Last year, Evelin's invested 10,000 dollars, part at 6% annual interest, and the rest at 8% annual interest. If she recieves $760 at the end of the year, how much did he invest at each rate?
Follows • 3
Expert Answers •2

02/11/14

what are the coordinates for 2y = 7
I need the coordinates for 2y = 7   A (___,____)   B (___,____)
Follows • 3
Expert Answers •2

02/11/14

y= 8/3x + 4 Find two points on the line to be graphed then enter their coordinates
I need to find two points on the line to be graphed and I need to then enter their coordinates for   y = 8/3x + 4
Follows • 2
Expert Answers •1

Still looking for help? Get the right answer, fast.

Ask a question for free

Get a free answer to a quick problem.
Most questions answered within 4 hours.

OR

Find an Online Tutor Now

Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.