Questions on Algebra: Equations answered by real tutors!

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 Algebra: Equations Solvers Lessons Answers archive Quiz In Depth

 Question 324941: Can someone please walk me through this? Consider the table below. x f(x) x g(x) 2 -8 -9 2 5 4 -8 -4 Use the table of values for functions f and g to find the composition (f compose g)(-9). Jerry jerry@san.rr.com Click here to see answer by Fombitz(13828)
 Question 324941: Can someone please walk me through this? Consider the table below. x f(x) x g(x) 2 -8 -9 2 5 4 -8 -4 Use the table of values for functions f and g to find the composition (f compose g)(-9). Jerry jerry@san.rr.com Click here to see answer by jessica43(140)

 Question 325105: The equation D=1.2 sqrt h gives the distance, D, in miles that a person can see to the horizon from a distance height h in feet assuming I have the equation solved for h correct sqrt h= d/1.2=h=d^2/1.44=36d^2/25 how do I solve this problem Long's Peak in Rocky Mount National Park is 14,255 ft. in elevation. How far can you see the horizon from the top? Cn you see Cheyene Wy. which is about 89 miles away? Click here to see answer by checkley77(12569)

 Question 325104: Suppose an object is 100 pounds at sea level and sea level is 3,963 miles from the center of the earth and I have this equation to make this a true statement and it is correct r=3963 w=100 and w=cr^-2 100=c(3963)^-2 how would i determine the weight of an object in Death Valley which is 282 ft. below sea level and the top of Mount McKinley 120,300 feet above sea level. If you can show me which numbers to plug in where I can then figure the math. I am not sure where each number goes in the equation to get the answer. Click here to see answer by Theo(3464)

 Question 325152: Write a general formula to describe the variation if v varies directly with t and v = 1.6 when t =.8 Click here to see answer by checkley77(12569)

 Question 325289: 2.how can i solve this system of equation by substitution -7x-2y=-13,x-2y=11? pls help me.. Click here to see answer by jim_thompson5910(28595)
 Question 325289: 2.how can i solve this system of equation by substitution -7x-2y=-13,x-2y=11? pls help me.. Click here to see answer by tinbar(128)

 Question 325367: Solve by substitution: 3x-y=5 -6x +2y=1 I dont know how to start this. Can you help me solve this? Click here to see answer by stanbon(57347)

 Question 325490: i need some help with soving this -3(x-5)=-5(-3-4x) Click here to see answer by jim_thompson5910(28595)

 Question 325596: 3xy + y = 15 Solve for Y Click here to see answer by mananth(12270)

 Question 325742: John pays \$650 in property tax. What is the assessed value of his property if property taxes are 1.2% of assessed value? Click here to see answer by stanbon(57347)

 Question 325749: Solve the equation 7^(x – 2) = 5^x. Round the answer to four decimal places. a. 8.3219 b. 9.6253 c. 10.1263 d. 11.5665 Thank you for your help. Click here to see answer by stanbon(57347)

 Question 325931: y2 + 0.1y +? Supply the missing number or term to make a perfect square trinomial Click here to see answer by Fombitz(13828)

 Question 325960: Diane drove miles using gallons of gas. At this rate, how many miles would she drive using gallons of gas? Click here to see answer by solver91311(16885)

 Question 326091: 18d^2+36d+10=0 The answer is - 1/5 , - 1/3 I just don't know how to get there Click here to see answer by solver91311(16885)

 Question 326105: Write the equation for the following problem? a vertical line that passes through (4,-7) Click here to see answer by vksarvepalli(154)
 Question 326105: Write the equation for the following problem? a vertical line that passes through (4,-7) Click here to see answer by solver91311(16885)

 Question 326075: here is and multiplication inequality can you help me -4x-7>5 Click here to see answer by rfer(12660)

 Question 326290: The Length of a rectangle is 8ft longer than its width. What are the dimensions if the area of the rectangle is 84 square ft. I know that A = W(L) so I think it should look like 84=x(x+8). I also know the dimensions are 6ft by 14ft. I just can't figure out how to solve the equation once it moves to 84= x^2(8x) Click here to see answer by solver91311(16885)

 Question 326319: please solve the following equation for x and show working 14e^5x = 280 Thanks Click here to see answer by user_dude2008(1861)

 Question 326209: Please help solve the following: Solve the system of equations by graphing. Then classify the system as consistent or inconsistent and as dependent or independent. 6x-5y=30 5y-6x=-30 Click here to see answer by Fombitz(13828)

 Question 326403: How do I get the answer to this? How do I find out what X is? X / 2340 = 12.47 Click here to see answer by solver91311(16885)

 Question 326286: write the equation and find the number of: seven times the difference of 7 and a number fives 70. would it be as follows 7(X)-7=70 or 7-x-(7)=70 Click here to see answer by Fombitz(13828)

 Question 326432: L*(1+p)^(12*z)=R*(1+r)^(z-1)*D*((C^z-1)/(C-1)). how do I solve this for z?? Click here to see answer by Fombitz(13828)