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SECONDARY
ALGEBRA
ALGEBRA I
EQUATIONS AND INEQUALITIES
Secondary
Calculus and Analysis
Algebra
Algebra I
Sequences
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Quadratic function and equation
Linear equations and graphs
Systems of equations
Exponential growth and decay
Irrational numbers
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Algebra foundations
Equations and inequalities
Polynomial graphs
Inequalities systems and graphs
Quadratics
Pre-Algebra
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Post Secondary
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Equations and inequalities Answers
Equations and inequalities
asked 2021-03-18
Prove by contraposition that if x does not equal 5 and is irrational then
\(\displaystyle{3}\frac{{x}}{{x}}-{5}\)
is irrational.
Equations and inequalities
asked 2021-03-18
The product of a number and seven is equal to two more than the number
Equations and inequalities
asked 2021-03-12
An infant receives 4 oz. of formula q.4h. How many quarts of formula has he taken in a four-day period?
Equations and inequalities
asked 2021-03-11
Solve the equations and inequalities below. Write your solutions in exact form.
\(a. \frac{3}{4}-\frac{x}{3}=\frac{7x}{4}\)
\(b. (b−4)2<12\)
\(c. ∣3+x∣−9\leq21\)
\(d. 5n^{2}−11n+2=0\)
Equations and inequalities
asked 2021-03-11
Find the volume of the solid generated by revolving the revolving the region bounded by the graphs of the equations and inequalities about the y-axis
\(\displaystyle{x}^{{2}}-{y}^{{2}}={25},{x}\geq{0},{y}=-{5},{y}={5}\)
Equations and inequalities
asked 2021-03-11
Find the value of the expression
\(\displaystyle{2}{x}^{{0}}{)}+\frac{{x}^{{1}}}{{3}}\)
when x=125.
Equations and inequalities
asked 2021-03-11
Suppose that you're running some errands for your boss, and she says, "I imagine you'll need to spendat least 30 bucks on cab fare. Don't spend more than 50, though. "Write an inequality that matches these conditions. Think about whether to use < or PSK(≤) 5.1+2.lim≤30ZSK
Equations and inequalities
asked 2021-03-11
How many liters of pure alcohol must be added to 20 liters of a 40% solution to obtain a 60% solution?
Equations and inequalities
asked 2021-03-11
At one time, the hockey teams received two points when they won a game and one point when they tied. One season, a team won a championship with 60 points. They won 9 more games than they tied. How many wins and how many ties did the team have?
Equations and inequalities
asked 2021-03-09
Determine graphically the solution set for the system of inequalities.
\(\displaystyle{3}{x}−{2}{y}{>}−{13}\)
\(\displaystyle−{x}+{2}{y}{>}{7}\)
Equations and inequalities
asked 2021-03-09
Solve the equations for x and simplify the answer if possible. Indicate which solving technique is used: Liner, Factor, SRP, ZPR, QF.
0.7(2-x)=1.25-0.5x
Equations and inequalities
asked 2021-03-08
From scnool, you biked 1.2 miles due south and then 0.5 mile due east to your house. If you had biked home on the street that runs directly diagonal from your school to your house, how many fewer miles would you have biked?
Equations and inequalities
asked 2021-03-08
2d-2<3d+8
Equations and inequalities
asked 2021-03-08
In testing an engine, various mixtures of gasoline and methanol are being tried. How much of a 90% gasoline mixture and a 75% gasoline mixture are needed for 1200 L of an 85% gasoline mixture?
Equations and inequalities
asked 2021-03-08
Nine batteries are hooked in series to provide a 33-V power source. Some of the batteries are 3 V and some are 4.5 V. How many of each type are used?
Equations and inequalities
asked 2021-03-07
\(\displaystyle{A}{n}={n}-{\frac{{{1}}}{{{2}}}}{a}{11}=?\)
Given the nth term find the indicated term.
Equations and inequalities
asked 2021-03-07
|3 - 5x| + 3 = 12
Equations and inequalities
asked 2021-03-07
A farmer sells corn for $6.00/bu and soybeans for $15.00/bu. The entire 3150 bu sells for $22,950. How much of each is sold?
Equations and inequalities
asked 2021-03-07
\(\displaystyle{\left(\frac{{y}}{{9}}\right)}+{\left(\frac{{1}}{{2}}\right)}\)
\(\displaystyle{\left(\frac{{3}}{{4}}\right)}+{\left(\frac{{5}}{{12}}\right)}\)
benchmark
Equations and inequalities
asked 2021-03-07
He spent a total of $112 on 14 music purchases. one Music CDs were on sale for $10 and cassettes were on sale for $3. How much did Andrew pay for each music CD and each cassette tape?
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