07/30/16

solve the given system of equations by the equations by the substitution method; x - 3y = 11 and -x+ 6y = -20
I have to solve it for x and y 
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07/29/16

solve the system of equations using the elimination method; 12/5× + 1/8y= -1213/40 and 5/8x - 3/5y = -493/40
Have to find the answer for x and y please 
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07/28/16

How to Explain Induction to a friend who complete confused?
How would you explain to this person why it is that induction actually does work. In my follow up responses to you, I may ask you questions that your friend might as in response to your... more
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07/28/16

Recursion and Recurrence Relations (Home Work)
1.  Let αk = 3k  + k - 2 for all k ≥ 0.a.  Write down the values of α1, α2 and α3.b.  Write down the values of A(1), A(2) and A(3) defined by the recurrence relation: A(0) = -1, A(k) = 3A(k-1) - 2k... more
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07/28/16

A nursing student has seven different patients assigned to her.
A nursing student has seven different patients assigned to her. How many different ways can she see each one exactly once in the same day?
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07/28/16

The area of a rectangle is 27 m2 , and the length of the rectangle is 3 m less than double the width. Find the dimensions of the rectangle.
I've been working on this problem and can't seem to find the correct dimensions.  Can someone please help?
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07/28/16

Solve the equation
(√6x+7) +3 = x+5
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07/28/16

GEOMETRY PLEASE HELP
You leave the pier on a bearing of S 62° E and travel for 75 km. You then turn around and continue on a bearing N 28° E for 53 km. How far are you from the pier? 
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07/27/16

finding the inverse
Find the inverse of f(x) = (5x-3)/(2x-5)
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07/27/16

What were the page numbers?
Peter opened his book and found that the product of the page numbers for two facing pages was 156. What were the page numbers? 
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07/27/16

how many are male?
a population of rabbits is 48% male. If there were 150 rabbits in the population, how many are male?
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07/27/16

How many tiles dose Gary need to fill the space? (Full question below)
Gary is installing tile in front of his door. The area to be tiled is 3 feet by 5 feet and each square tile is 6 inches long. How many tiles dose Gary need to fill the space?
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07/27/16

If y= 1+cosx/sinx ,show that dy/dx=1/cosx-1
If y= 1+cosx/sinx , show that dy/dx=1/cosx-1
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07/27/16

Name the characteristics of the graph of y = logb(x), b > 1. (Select all that apply.)
The domain is the set of positive real numbers.The domain is the set of real numbers.The range is the set of negative real numbers.The range is the set of positive real numbers.The range is the set... more
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07/26/16

Intermediate algebra help
The number of grams of radioactive cesium that remain after t years from an original sample of 30 g is given by N(t) = 30(2–0.0322t). Using a graphing calculator, graph N and determine in how may... more
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07/26/16

Consider the function
Consider the function f(x) = -x2 - 6x + 9. a. Find the vertex of the graph of the function. b. Find the x-intercepts of the graph. Use exact values that are completely simplified. c. Find the... more
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07/25/16

3(x+2)-5=15+x
Can someone please explain to me what is the value of x?
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07/25/16

Mixture problem help solve?
Sally has $160,000 invested in an account that pays 5.5% interest. How much would she need to invest in an account that pays 6.7% interest to raise her combined yield to 6.2%?
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07/25/16

i need help with adding radicals?
okay so 4√8-2√50-5√72
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07/25/16

Determine whether the number is a perfect square: 9
is the number 9 a perfect square?
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07/25/16

find the range and standard deviation for .
49, 50, 60, 25, 35, 56, 6, 75, 140, 50, 42, 43, 94, 70, 39, 35, 50, 30, 15, 34, 25, 38, 38.5, 68, 8, 20, 26, and 40
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07/25/16

how to find amplitude and translations in a tan graph when period and coordinates are given?
y=atan(pie/n t)+c -has period of 4 find the value of n and hence find the values of a,t and c when the graph passes through (-1,3) and (4,0)
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07/25/16

Financial mixture problems
Lisa has a total college account of $120,000. $50,000 of this is an account that pays 3.35% interest. What interest rate would she need on the rest in order to get $6,000 per year in interest all... more
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07/24/16

Probability
A bag contains 5 blue, 3 red, and 8 green marbles. You choose a marble, do not replace it, and then choose another. What is the probability that both marbles are red
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07/24/16

Lisa can shovel snow from her driveway in 60 minutes. Bill can do the same job in 45 minutes. How long would it take Lisa and Bill to shovel the driveway if the
Lisa can shovel snow from her driveway in 60 minutes. Bill can do the same job in 45 minutes. How long would it take Lisa and Bill to shovel the driveway if they worked? together?
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