# Questions on Algebra: Equations answered by real tutors!

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 Algebra: Equations Solvers Lessons Answers archive Quiz In Depth

 Question 147332: the length of a rectangle is fixed at 15cm. what widths will make the peramiter greater than 76cm? the width must be greater than __ cm Click here to see answer by nerdybill(6963)

 Question 147330: amy paid \$75.03 for a pair of running shoes during a 35% off sale. what was the regular price? Click here to see answer by nerdybill(6963)

 Question 147390: In 1992, the life expectancy of males in a certain country was 66.4 years. In 1996, it was 69.9 years. Let E represent the life expectancy in year t and let t represent the number of years since 1992. Click here to see answer by stanbon(57415)

 Question 147392: the equation y= -1777x+27,153 can be used to predict the number y of gun deaths in the united states x years after 2000, that is, x=0 corresponds to 2000, x=3 corresponds to 2003, x=4 corresponds to 2004, and so on. predicit the number of gun deaths in 2004 and 2007. in what year will the number of gun deaths be 11,160? 2004_____ 2007_____ the predicted number of gun deaths will be 11,160 in the year_____ Click here to see answer by stanbon(57415)

 Question 147509: Which of the follwoing pairs of points is indicative of zero per the Intermediate Value Theorem? a. (0,0) & (2, -3) b. (-2, -3) & (2, -3) c. (2, 0) & (0, -3) d. (3, -4) & (-6, 12) Click here to see answer by stanbon(57415)

 Question 147507: Which of the following is a sixth order equation? a. S(x) = x^5 + x^6 - 2x + 7 b. Q(x) = x^2 + 3^6 c. M(x) = (x^3)^3 - 12x + 4 d. None of the above Click here to see answer by Alan3354(30993)

 Question 147552: How many positive real solutions are there in: f(x) = -2x^4 + 3x^3 + 7x^2 + 2 a. 0 b. 2 c. 1 d. None, there is no x-term Click here to see answer by Nate(3500)

 Question 147553: What is a requirement of the coefficients of a polynomial in order to use the Rational Zero Theorem? a. That they are all non-negatives b. That they are all interger values c. That they are all whole numbers d. That they are all non-negative integers Click here to see answer by Nate(3500)

 Question 147551: If R(x) is a rational function, then R(x) < 0 describes what? a. Values of x that make R(x) positive in value b. Values of R(x) that make x negative in value c. Values of x that make R(x) negative in value d. Negative values of x that make R(x) also negative Click here to see answer by Nate(3500)
 Question 147551: If R(x) is a rational function, then R(x) < 0 describes what? a. Values of x that make R(x) positive in value b. Values of R(x) that make x negative in value c. Values of x that make R(x) negative in value d. Negative values of x that make R(x) also negative Click here to see answer by mangopeeler07(462)

 Question 147544: Consider g(x) = x^3 + 4x; what is the maximum number of turns it can have? a. 2 b. 1 c. 3 d. 4 Click here to see answer by edjones(7569)

 Question 147549: Let's say that a company's profitability, p(t), follows p(t) = t^2 - 5t - 50 with p(t) in units of \$1k and t = fiscal months. How long will it take the company to be \$100k in the black (i.e., p(t) = \$100,000)? a. 14 years b. 1.5 years c. 1.25 years d. 6 months Click here to see answer by edjones(7569)

 Question 147559: Use the quadratic formula to solve the equation 2x^2-x=-10 The solution set is { }. Click here to see answer by jim_thompson5910(28598)
 Question 147559: Use the quadratic formula to solve the equation 2x^2-x=-10 The solution set is { }. Click here to see answer by stanbon(57415)

 Question 147561: R(x) has a slant asymptote; what can it not also have? a. horizontal asymptote b. vertical asymptote c. another horizontal asymptote d. any real zeroes Click here to see answer by jim_thompson5910(28598)

 Question 147563: An astronaut on the moon tosses a ball upwards; when will the ball initially be 35 feet above the lunar surface if the ball's height (feet) follows: h(t) = -2.6t^2 + 32.1t + 5.5, and t is in seconds from release? a. 1 second b. 2 seconds c. .5 seconds d. 13.2 seconds Click here to see answer by jim_thompson5910(28598)

 Question 147583: R(x) = x^3 - 7 / x^2 + 1; what happens to R(x) if we now have R(x) - 3? a. shifts 3 units to left b. shifts 3 units down c. shifts 3 units to the right d. shifts 3 units up Click here to see answer by stanbon(57415)

 Question 147581: R(x) = x^3 - 7 / x^2 + 1; what happens to R(x) if we now have R(x+2)? a. shifts 2 units to the left b. shifts 2 units up c. shifts 2 units to the right d. remains stationary; there is no effect of adding 2 to x Click here to see answer by jim_thompson5910(28598)
 Question 147581: R(x) = x^3 - 7 / x^2 + 1; what happens to R(x) if we now have R(x+2)? a. shifts 2 units to the left b. shifts 2 units up c. shifts 2 units to the right d. remains stationary; there is no effect of adding 2 to x Click here to see answer by stanbon(57415)

 Question 147606: I tried to solve this equation but keep getting the wrong answer. I need to do the following: Solve the equation for the exact irrational root. Problem: X times square root(2) + 4 = square root(3) Please help, this is my last problem out of a 150. Thank you Click here to see answer by jim_thompson5910(28598)

 Question 147619: R(x) - x^3 - 2x^2 - 7 / x^2 + 1, what kind(s) of asymptotes does R(x) posesses? a. single horizontal asymptote b. slant and a horizontal asymptote c. single slant asymptote d. R(x) has no asymptotes Click here to see answer by stanbon(57415)

 Question 147681: What is the most in debt a company will be if debt represents negative profit, p(t), and p(t) = t^2 - 5t - 50 with p(t) in units of \$1000 and t = fiscal quarters? a. 56.25 fiscal quarters b. -\$56,250 c. 2.5 fiscal quarters d. - \$50,000 Click here to see answer by mangopeeler07(462)

 Question 147697: ln (x) has what base? 0.1 π 1 e Click here to see answer by jim_thompson5910(28598)

 Question 147696: The Mach number, M, is the ratio of the speed of an object, v, traveling through a fluid medium to the velocity of sound, vS, through that medium. Hence, log(M) = a. log(v) - log(vS) b. log(v - vS) c. log(v) + log(vS) d. log(v) log(vS) Click here to see answer by scott8148(6628)

 Question 147700: Which of the following can be modeled via exponential functions? a. Population growth b. Radioactive decay c. Compound interest d. All of the above Click here to see answer by stanbon(57415)

 Question 147694: y = log π is equivalent to: a. 10^-y = π b. 10^π = y c. 10^y = π d. Cannot be defined without first knowing the base of the logarithm Click here to see answer by stanbon(57415)
 Question 147694: y = log π is equivalent to: a. 10^-y = π b. 10^π = y c. 10^y = π d. Cannot be defined without first knowing the base of the logarithm Click here to see answer by Nate(3500)

 Question 147691: If log 2 ≈ 0.301 and log 3 ≈ 0.477, then log 6 ≈ a. 0.778 b. 0.144 c. 0.176 d. Cannot be determined given this information Click here to see answer by Nate(3500)
 Question 147691: If log 2 ≈ 0.301 and log 3 ≈ 0.477, then log 6 ≈ a. 0.778 b. 0.144 c. 0.176 d. Cannot be determined given this information Click here to see answer by stanbon(57415)

 Question 147685: If g(x) is a logarithmic function, then what effect does 'c' have on g(x) if f(x) = g(cx)? a. g(x) shifts c units to the sign opposite of c b. g(x) stretches or shrinks horizontally c. g(x) stretches vertically d. There is no effect on g(x) Click here to see answer by Nate(3500)
 Question 147685: If g(x) is a logarithmic function, then what effect does 'c' have on g(x) if f(x) = g(cx)? a. g(x) shifts c units to the sign opposite of c b. g(x) stretches or shrinks horizontally c. g(x) stretches vertically d. There is no effect on g(x) Click here to see answer by Edwin McCravy(8920)

 Question 147684: Which of the following is an exponential function? a. f(x) = x2 b. L(t) = 1 - e-t c. g(q) = q-2 d. R(x) = 4 ln(x) Click here to see answer by stanbon(57415)

 Question 147679: R(x) = x + 1 / x - 1, if T(x) = R(x), then T(x) = a. T(x) = 2x / x - 1 b. T(x) - x + 2 / x - 1 c. T(x) = x + 2 / x + 1 d. T(x) = 2x / x + 1 Click here to see answer by stanbon(57415)
 Question 147679: R(x) = x + 1 / x - 1, if T(x) = R(x), then T(x) = a. T(x) = 2x / x - 1 b. T(x) - x + 2 / x - 1 c. T(x) = x + 2 / x + 1 d. T(x) = 2x / x + 1 Click here to see answer by mangopeeler07(462)

 Question 147678: R(x) = x^3 - 2x^2 - 7 / x^6 - 2x^5 + 6x^2 - 4, how many vertical asymptotes are possible? a. 5 b. 6 c. 2 d. 3 Click here to see answer by stanbon(57415)