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High School Algebra 2
Solving Equations and Inequalities

1
Linear and Quadratic Equations, and Formulas

Problem  1
practice icon

Find the solution set for \(3a - 5 = -6a + 1\)

Choose instructor to watch:
Mr. McKeague cc
Mr. McKeague
Brooke cc
Brooke
David cc
David
David espanol spanish
David
Problem  2
practice icon

Solve \(\displaystyle\frac{2}{3}x+\displaystyle\frac{1}{2}= \displaystyle-\frac{3}{8}\)

Choose instructor to watch:
Mr. McKeague cc
Mr. McKeague
Arielle cc
Arielle
Matt cc
Matt
Cynthia espanol spanish
Cynthia
Study Skill

Common Mistake This is a mistake in using notation incorrectly.

Choose instructor to watch:
Mr. McKeague cc
Mr. McKeague
Problem  4
practice icon

Solve \(0.06x+0.05(10,000-x)=560\)

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Mr. McKeague cc
Mr. McKeague
Betsy cc
Betsy
Aaron cc
Aaron
Julieta espanol spanish
Julieta
Problem  5
practice icon

Solve \(8-3(4x-2)+5x=35\)

Choose instructor to watch:
Mr. McKeague cc
Mr. McKeague
Arielle cc
Arielle
David cc
David
David espanol spanish
David
Problem  6
practice icon

Solve \(x^2 -2x-24=0\)

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Mr. McKeague cc
Mr. McKeague
Arielle cc
Arielle
Matt cc
Matt
David espanol spanish
David
Problem  7
practice icon

Solve \(100x^2 =300x\)

Choose instructor to watch:
Mr. McKeague cc
Mr. McKeague
Arielle cc
Arielle
Matt cc
Matt
David espanol spanish
David
Problem  8
practice icon

Solve \((x-2)(x+1)=4\)

Choose instructor to watch:
Mr. McKeague cc
Mr. McKeague
Arielle cc
Arielle
Matt cc
Matt
David espanol spanish
David
Problem  9
practice icon

Solve \(x^3 +2x^2 -9x-18=0\)

Choose instructor to watch:
Mr. McKeague cc
Mr. McKeague
Arielle cc
Arielle
Matt cc
Matt
Cynthia espanol spanish
Cynthia
Problem  10
practice icon

A boat is traveling upstream against a current. If the speed of the boat in still water is \(r\) and the speed of the current is \(c\) then the formula for the distance traveled by the boat is \(d=(r-c) \cdot t\) where \(t\) is time. Find \(c\) if \(d=52\) miles, \(r=16\) miles, and \(t=4\) hours.

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Betsy cc
Betsy
Aaron cc
Aaron
Cynthia espanol spanish
Cynthia
Problem  11
practice icon

If an object is projected into the air with an initial velocity \(v\), its height \(h\) after \(t\) seconds will be given by \(h=vt-16t^2\). Find \(t\) if \(v=64\) feet/second and \(h=48\) feet.

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Molly S. cc
Molly S.
Betsy cc
Betsy
Aaron cc
Aaron
Julieta cc espanol spanish
Julieta
Problem  12
practice icon

Given the formula \(P=2w+2l\), solve for \(w\).

Choose instructor to watch:
Molly S. cc
Molly S.
Betsy cc
Betsy
Logan cc
Logan
Cynthia espanol spanish
Cynthia
Problem  13
practice icon

Solve for \(x\); \(ax-3=bx+5\)

Choose instructor to watch:
Betsy cc
Betsy
Mr. Martinez espanol spanish
Mr. Martinez
Problem  14
practice icon

Solve \(2(3x-4)=3+6x\)

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Mr. McKeague cc
Mr. McKeague
Betsy cc
Betsy
Aaron cc
Aaron
Julieta cc espanol spanish
Julieta
Problem  15
practice icon

Solve \(-15+3x=3(x-5)\)

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Mr. McKeague cc
Mr. McKeague
Betsy cc
Betsy
Anthony cc
Anthony
Anthony espanol spanish
Anthony
Problem  16

Mr. McKeague traveled to Buenos Aires with a group of friends. It was a hot day when he arrived. One of the bank kiosks indicated the temperature was \(25^\circ\text{C}\). Someone asked what that would be on the Fahrenheit scale (the scale they were familiar with), and Budd, one of his friends said, "just multiply by \(2\) and add \(30\)."

  1. What was the temperature in \(^\circ\text{F}\) according to Budd’s approximation?

  2. What is the actual temperature in \(^\circ\text{F}\)?

  3. Why does Budd’s estimate work?

  4. Write a formula for Budd’s estimate.

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Molly S. cc
Molly S.
Octabio cc
Octabio
Cynthia espanol spanish
Cynthia
Problem  17
practice icon

A manufacturer of calculators knows that the number of calculators she can sell each week is related to the price by the equation \(x=1,300-100p\), where \(x\) is the number of calculators and \(p\) is the price per calculator. What price should she charge if she wants the weekly revenue to be \(\$4,000\)?

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Betsy cc
Betsy
Aaron cc
Aaron
Cynthia espanol spanish
Cynthia
Mini Lecture
Choose instructor to watch:
Katherine cc
Katherine

2
More Quadratic Equations and Formulas

Problem  1
practice icon

Solve \((2x-3)^2=25\)

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Mr. McKeague cc
Mr. McKeague
Katrina cc
Katrina
Matt cc
Matt
David espanol spanish
David
Problem  2
practice icon

The vertical rise of the Forest Double chair lift is \(1,170\) feet and the length of the chair lift is \(5,750\) feet. To the nearest foot, find the horizontal distance covered by a person riding this lift.

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Stefanie cc
Stefanie
Aaron cc
Aaron
Mr. Martinez cc espanol spanish
Mr. Martinez
Problem  3
practice icon

Solve \(x^2-6x+5=0\)

Choose instructor to watch:
Mr. McKeague cc
Mr. McKeague
Stefanie cc
Stefanie
Matt cc
Matt
Mr. Martinez espanol spanish
Mr. Martinez
Problem  4
practice icon

Solve by completing the square: \(x^2+5x-2=0\)

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Mr. McKeague cc
Mr. McKeague
Katrina cc
Katrina
Anthony cc
Anthony
Anthony espanol spanish
Anthony
Problem  5
practice icon

Solve \(x^2-5x-6=0\)

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Mr. McKeague cc
Mr. McKeague
Stefanie cc
Stefanie
Matt cc
Matt
Mr. Martinez espanol spanish
Mr. Martinez
Problem  6
practice icon

Solve \(x^2-6x=-7\)

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Mr. McKeague cc
Mr. McKeague
Betsy cc
Betsy
Matt cc
Matt
Mr. Martinez espanol spanish
Mr. Martinez
Problem  7
practice icon

Solve \(\displaystyle\frac{1}{10}x^2-\displaystyle\frac{1}{5}x=-\displaystyle\frac{1}{2}\)

Choose instructor to watch:
Mr. McKeague cc
Mr. McKeague
Betsy cc
Betsy
Aaron cc
Aaron
David espanol spanish
David
Problem  8
practice icon

Solve \((2x-3)(2x-1)=-4\)

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Mr. McKeague cc
Mr. McKeague
Betsy cc
Betsy
Aaron cc
Aaron
Mr. Martinez espanol spanish
Mr. Martinez
Problem  9
practice icon

If the shortest side in a \(30^\circ-60^\circ-90^\circ\) triangle is 1 inch, find the lengths of the other two sides.

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Stefanie cc
Stefanie
Aaron cc
Aaron
Mr. Martinez espanol spanish
Mr. Martinez
Problem  10
practice icon

If an object is thrown downward with an initial velocity of \(20\) feet per second, the distance \(s(t)\), in feet it travels in \(t\) seconds is given by the function \(s(t)=20t+16t^2\). How long does it take the object to fall \(40\) feet?

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Nathan cc
Nathan
Katrina cc
Katrina
Aaron cc
Aaron
Mr. Martinez espanol spanish
Mr. Martinez
Problem  11
practice icon

A company produces and sells copies of an accounting program for home computers. The total weekly cost to produce \(x\) copies of the program is \(C(x)=8x+500\), and the weekly revenue for selling all \(x\) copies of the program is \(R(x)=35x-0.1x^2\). How many programs must be sold for the weekly profit to be \(\$1,200\)?

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Molly S. cc
Molly S.
Betsy cc
Betsy
Octabio espanol spanish
Octabio
Cynthia espanol spanish
Cynthia
Take 5

Enrichment
Deriving the quadratic formula.

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Mr. McKeague cc
Mr. McKeague
David espanol spanish
David
Mini Lecture

Mini Lecture
Solve using the quadratic formula.

  1. \(6x^2+7x-5=0\)

  2. \(\displaystyle\frac{x^2}{5}-x=-\displaystyle\frac{1}{2}\)

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Gordon cc
Gordon
Cynthia espanol spanish
Cynthia
Mini Lecture

Mini Lecture
Solve.

  1. \((5x+2)^2=-8\)

  2. \(a^2+10a+22=0\)

  3. \(2x^2-4x-8=0\)

Choose instructor to watch:
Mr. McKeague cc
Mr. McKeague
Mini Lecture
Choose instructor to watch:
Katherine cc
Katherine

3
Additional Equations and Formulas

Problem  1
practice icon

Solve \((x+3)^2-2(x+3)-8=0\)

Choose instructor to watch:
Mr. McKeague cc
Mr. McKeague
Stefanie cc
Stefanie
Aaron cc
Aaron
Mr. Martinez espanol spanish
Mr. Martinez
Problem  2
practice icon

Solve \(27t^3-8=0\)

Choose instructor to watch:
Mr. McKeague cc
Mr. McKeague
Betsy cc
Betsy
Aaron cc
Aaron
Octabio espanol spanish
Octabio
Problem  3
practice icon

Solve \(4x^4+7x^2=2\)

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Mr. McKeague cc
Mr. McKeague
Katrina cc
Katrina
Aaron cc
Aaron
Mr. Martinez espanol spanish
Mr. Martinez
Problem  4
practice icon

Solve \(\displaystyle\frac{6}{a-4}=\displaystyle\frac{3}{8}\)

Choose instructor to watch:
Molly S. cc
Molly S.
Stefanie cc
Stefanie
Logan cc
Logan
David espanol spanish
David
Problem  5
practice icon

Solve \(\displaystyle\frac{x}{x-2}+\displaystyle\frac{2}{3}=\displaystyle\frac{2}{x-2}\)

Choose instructor to watch:
Molly S. cc
Molly S.
Gordon cc
Gordon
Anthony cc
Anthony
Cynthia espanol spanish
Cynthia
Problem  6
practice icon

Solve: \(\frac{1}{x+2} - \frac{1}{x} = \frac{1}{3}\)

Choose instructor to watch:
Molly S. cc
Molly S.
Betsy cc
Betsy
Gordon cc
Gordon
Cynthia espanol spanish
Cynthia
Problem  7
practice icon

Solve \(3+\displaystyle\frac{1}{x}=\displaystyle\frac{10}{x^2}\)

Choose instructor to watch:
Mr. McKeague cc
Mr. McKeague
Stefanie cc
Stefanie
Aaron cc
Aaron
Problem  8
practice icon

Solve for \(y\): \(\displaystyle\frac{y-4}{x-5}=3\)

Choose instructor to watch:
Molly S. cc
Molly S.
Betsy cc
Betsy
Logan cc
Logan
Cynthia espanol spanish
Cynthia
Problem  9
practice icon

Solve for \(y\): \(x=\displaystyle\frac{y-4}{y-2}\)

Choose instructor to watch:
Molly S. cc
Molly S.
Katrina cc
Katrina
Anthony cc
Anthony
Anthony espanol spanish
Anthony
Problem  10

Francine plans a \(60\)-mile training run on her cycle-plane. The time required for the training run, in terms of the wind speed, \(x\), is given by

\[t = \frac{60}{15 - x}\]

If it takes Francine \(9\) hours to cover \(60\) miles, what is the speed of the wind?

Choose instructor to watch:
Betsy cc
Betsy
Gordon cc
Gordon
Cynthia espanol spanish
Cynthia
Problem  11
practice icon

Solve for \(x\): \(\sqrt{3x+4}=5\)

Choose instructor to watch:
Molly S. cc
Molly S.
Betsy cc
Betsy
CJ cc
CJ
Octabio espanol spanish
Octabio
Problem  12
practice icon

Solve \(\sqrt{5x-1}+3=7\)

Choose instructor to watch:
Molly S. cc
Molly S.
Betsy cc
Betsy
CJ cc
CJ
Octabio espanol spanish
Octabio
Problem  13
practice icon

Solve: \(t+5=\sqrt{t+7}\)

Choose instructor to watch:
Molly S. cc
Molly S.
Stefanie cc
Stefanie
Aaron cc
Aaron
Mr. Martinez espanol spanish
Mr. Martinez
Problem  14
practice icon

Solve: \(\sqrt{x-3}=\sqrt{x}-3\)

Choose instructor to watch:
Octabio cc
Octabio
Molly S. cc
Molly S.
Cynthia espanol spanish
Cynthia
Octabio espanol spanish
Octabio

4
More Applications and Modeling

Problem  1
practice icon

The length of a rectangle is \(3\) inches less than twice the width. The perimeter is \(45\) inches. Find the length and width.

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Brooke cc
Brooke
Aaron cc
Aaron
Mr. Martinez espanol spanish
Mr. Martinez
Problem  2
practice icon

A person invests \(\$10,000\) in two accounts. One account earns a \(5\%\) annually, and the other earns \(6\%\). If the total interest earned in a year is \(\$560\), how much is invested in each account?

Choose instructor to watch:
Katrina cc
Katrina
Aaron cc
Aaron
Octabio espanol spanish
Octabio
Problem  3
practice icon

The lengths of the three sides of a right triangle are given by three consecutive integers. Find the lengths of the three sides.

Choose instructor to watch:
Betsy cc
Betsy
Problem  4
practice icon

Two families go on a ski trip. The first family makes the \(455\)-mile trip \(5\) miles per hour faster than the second family. The second family takes a half-hour longer. What were the speeds of the two families?

Choose instructor to watch:
Katrina cc
Katrina
Logan cc
Logan
Octabio espanol spanish
Octabio
Problem  5
practice icon

An inlet pipe can fill a pool in \(10\) hours and the drain can empty it in \(12\) hours. If the pool is empty and both the inlet pipe and drain are open, how long will it take to fill the pool?

Choose instructor to watch:
Katrina cc
Katrina
CJ cc
CJ
Octabio espanol spanish
Octabio
Problem  6

A piece of string \(12\) inches long is to be formed into a rectangle. Build a table that gives the length of the rectangle if the width is \(1, 2, 3, 4,\) or \(5\) inches. Then find the area of each of the rectangles formed.

Choose instructor to watch:
Katrina cc
Katrina
Cynthia espanol spanish
Cynthia
Mini Lecture

Mini Lecture

1. The longest side of a triangle is two times the shortest side, while the medium side is \(3\) meters more than the shortest side. The perimeter is \(27\) meters. Find the dimensions.

2. A man invests \(\$12,000\) in two accounts. If one account pays \(10\%\) per year and the other pays \(7\%\) per year, how much was invested in each account if the total interest earned in the first year was \(\$960\).

Choose instructor to watch:
Katherine
Katherine

5
Linear, Quadratic, and Rational Inequalities

Mini Lecture

Introduction Using the properties for inequalities correctly and avoiding common mistakes.

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Mr. McKeague cc
Mr. McKeague
Problem  2
practice icon

Solve and graph: \(3x+3 < 2x-1\)

Choose instructor to watch:
Molly S. cc
Molly S.
Betsy cc
Betsy
David cc
David
David espanol spanish
David
Problem  3
practice icon

Solve: \(\, -2y-3 \leq 7\)

Choose instructor to watch:
Mr. McKeague cc
Mr. McKeague
Molly S. cc
Molly S.
Matt cc
Matt
Julieta cc espanol spanish
Julieta
Problem  4
practice icon

Solve \(\, 3(2x-4)-7x \leq -3x\)

Choose instructor to watch:
Molly S. cc
Molly S.
Aaron cc
Aaron
David espanol spanish
David
Problem  5
practice icon

Graph \(\, \{x \mid x \leq -2\) or \(x>3\}\)

Choose instructor to watch:
Anthony cc
Anthony
Betsy cc
Betsy
David espanol spanish
David
Problem  6
practice icon

Graph \(\, \{x \mid x > -1\) and \(x < 2\}\)

Choose instructor to watch:
David espanol spanish
David
Cynthia espanol spanish
Cynthia
Problem  7
practice icon

Solve and graph: \(\, -3 \leq 2x-5 \leq 3\)

Choose instructor to watch:
Betsy cc
Betsy
Anthony cc
Anthony
David espanol spanish
David
Problem  8
practice icon

Solve \(3t+7 \leq -4\) or \(3t+7 \geq 4\)

Choose instructor to watch:
Molly S. cc
Molly S.
Aaron cc
Aaron
Cynthia espanol spanish
Cynthia
Problem  9
practice icon

Solve \(x^2-2x-8 \leq 0\)

Choose instructor to watch:
Betsy cc
Betsy
Aaron cc
Aaron
Mr. Martinez espanol spanish
Mr. Martinez
Problem  10
practice icon

Solve \(x^2-6x+9\geq 0\)

Choose instructor to watch:
Betsy cc
Betsy
Aaron cc
Aaron
Julieta cc espanol spanish
Julieta
Problem  11
practice icon

Solve \(\displaystyle\frac{x-4}{x+1}\leq 0\)

Choose instructor to watch:
Stefanie cc
Stefanie
Betsy cc
Betsy
Preston cc
Preston
Mr. Martinez espanol spanish
Mr. Martinez
Problem  12
practice icon

Solve \(\displaystyle\frac{3}{x-2}-\displaystyle\frac{2}{x-3}>0\)

Choose instructor to watch:
Betsy cc
Betsy
Aaron cc
Aaron
Mr. Martinez espanol spanish
Mr. Martinez
Problem  13
practice icon

The USGS gives the survival rates for the ’Apapane as

\(0.72 \pm 0.11\) for adults
\(0.13 \pm 0.07\) for juveniles

Write each survival rate as an inequality involving percent.

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Sirena cc
Sirena
Gordon cc
Gordon
Cynthia espanol spanish
Cynthia
Problem  14
practice icon

A company that manufactures ink cartridges finds that they can sell \(x\) cartridges each week at \(p\) dollars, according to \(x=1,300-100p\). What price should they charge if they want to sell at least \(300\) cartridges?

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Mrs. Mooney cc
Mrs. Mooney
Stefanie cc
Stefanie
Aaron cc
Aaron
Cynthia espanol spanish
Cynthia
Problem  15
practice icon

The formula \(F=\dfrac{9}{5}C+32\) gives the relationship between Celsius and Fahrenheit. If the temperature on a certain day is \(86^\circ\) Fahrenheit, what is the temperature in degrees Celsius?

Choose instructor to watch:
Mr. McKeague cc
Mr. McKeague
Aaron cc
Aaron
Cynthia espanol spanish
Cynthia
Mini Lecture

Mini Lecture
Solve and graph.

  1. \(x^2+x-9<0\)

  2. \(6x^2<5x-1\)

  3. \(x^2-9<0\)

  4. \((4-2)(x-3)(x-4)>0\)

Choose instructor to watch:
Mr. McKeague cc
Mr. McKeague

6
Equations and Inequalities with Absolute Value

Problem  1
practice icon

Solve \(\lvert x \rvert =5\)

Choose instructor to watch:
Mr. McKeague cc
Mr. McKeague
Brooke cc
Brooke
Aaron cc
Aaron
David espanol spanish
David
Problem  2
practice icon

Solve \(\lvert 2a-1 \rvert =7\)

Choose instructor to watch:
Mr. McKeague cc
Mr. McKeague
Molly S. cc
Molly S.
David espanol spanish
David
Problem  3
practice icon

Solve \(\left\lvert \frac{2}{3}x-3 \right| +5=12\)

Choose instructor to watch:
Aaron cc
Aaron
David espanol spanish
David
Problem  4
practice icon

Solve \(\lvert 3a-6 \rvert =-4\)

Choose instructor to watch:
Mr. McKeague cc
Mr. McKeague
Betsy cc
Betsy
Aaron cc
Aaron
Cynthia espanol spanish
Cynthia
Problem  5
practice icon

Solve \(\lvert 3a+2 \rvert = \lvert 2a+3 \rvert\)

Choose instructor to watch:
Aaron cc
Aaron
David espanol spanish
David
Problem  6
practice icon

Solve \(\lvert x-5 \rvert = \lvert x-7 \rvert\)

Choose instructor to watch:
Molly S. cc
Molly S.
Brooke cc
Brooke
Aaron cc
Aaron
David espanol spanish
David
Problem  7
practice icon

Graph \(\lvert 2x-5 \rvert < 3\)

Choose instructor to watch:
Mr. McKeague cc
Mr. McKeague
Brooke cc
Brooke
Anthony cc
Anthony
Mr. Martinez espanol spanish
Mr. Martinez
Problem  8
practice icon

Graph \(\lvert 4t-3 \rvert \geq 9\)

Choose instructor to watch:
Betsy cc
Betsy
Brooke cc
Brooke
Anthony cc
Anthony
Cynthia espanol spanish
Cynthia
Problem  9
practice icon

Graph \(\lvert 2x+3 \rvert +4 < 9\)

Choose instructor to watch:
Brooke cc
Brooke
Anthony cc
Anthony
Gordon espanol spanish
Gordon
Problem  10
practice icon

Graph \(\lvert 4-2t \rvert > 2\)

Choose instructor to watch:
Molly S. cc
Molly S.
Stefanie cc
Stefanie
Aaron cc
Aaron
Julieta cc espanol spanish
Julieta
Problem  11
practice icon

Solve \(\lvert 7y-1\rvert < -2\)

Choose instructor to watch:
Molly S. cc
Molly S.
Betsy cc
Betsy
Octabio cc
Octabio
Cynthia espanol spanish
Cynthia
Problem  12
practice icon

Solve \(\lvert 6x+2 \rvert > -5\)

Choose instructor to watch:
Betsy cc
Betsy
Aaron cc
Aaron
Cynthia espanol spanish
Cynthia
Mini Lecture

Mini Lecture
Solve and graph.

  1. \(|3y+9|\geq 6\)

  2. \(|3x+5|-8<5\)

Choose instructor to watch:
Mr. McKeague cc
Mr. McKeague

7
summary

Problem  1

Solve: \[5-\frac{4}{7}a=-11\]

Choose instructor to watch:
Kendra cc
Kendra
Gordon cc
Gordon
Gordon espanol spanish
Gordon
Problem  2

Solve: \[\frac{1}{5}x-\frac{1}{2}-\frac{1}{10}x+\frac{2}{5}=\frac{3}{10}x+\frac{1}{2}\]

Choose instructor to watch:
Kendra cc
Kendra
Gordon cc
Gordon
Gordon espanol spanish
Gordon
Problem  3

Solve: \[3x^2=5x+2\]

Choose instructor to watch:
Kendra cc
Kendra
Gordon cc
Gordon
Gordon espanol spanish
Gordon
Problem  4

Solve: \[100x^3=500x^2\]

Choose instructor to watch:
Kendra cc
Kendra
Gordon cc
Gordon
Gordon espanol spanish
Gordon
Problem  5

Solve: \[5(x-1)-2(2x+3)=5x-4\]

Choose instructor to watch:
Kendra cc
Kendra
Gordon espanol spanish
Gordon
Problem  6

Solve: \[0.07-0.02(3x+1)=-0.04x+0.01\]

Choose instructor to watch:
Kendra cc
Kendra
Gordon cc
Gordon
Mr. Martinez espanol spanish
Mr. Martinez
Problem  7

Solve: \[(x+1)(x+2)=12\]

Choose instructor to watch:
Kendra cc
Kendra
Gordon cc
Gordon
Mr. Martinez espanol spanish
Mr. Martinez
Problem  8

Solve: \[x^3+2x^2-16x-32=0\]

Choose instructor to watch:
Kendra cc
Kendra
Gordon cc
Gordon
Mr. Martinez espanol spanish
Mr. Martinez
Problem  9

Solve for \(w\): \[P=2l+2w\]

Choose instructor to watch:
Kendra cc
Kendra
Gordon cc
Gordon
Mr. Martinez espanol spanish
Mr. Martinez
Problem  10

Solve for \(B\): \[A=\frac{1}{2}h(b+B)\]

Choose instructor to watch:
Kendra cc
Kendra
Gordon cc
Gordon
Mr. Martinez espanol spanish
Mr. Martinez
Problem  11
Choose instructor to watch:
Kendra cc
Kendra
Gordon cc
Gordon
Mr. Martinez espanol spanish
Mr. Martinez
Problem  12
Choose instructor to watch:
Kendra cc
Kendra
Gordon cc
Gordon
Problem  13

Two angles are supplementary. If the larger angle is \(15^\circ\) more than twice the smaller angle, find the measure of each angle.

Choose instructor to watch:
Gordon cc
Gordon
Problem  14

The longest side of a right triangle is \(4\) inches more than the shortest side. The third side is \(2\) inches more than the shortest side. Find the length of each side.

Choose instructor to watch:
Gordon cc
Gordon
Problem  15

If an object is thrown straight up in the air with an initial velocity of \(32\) feet per second, then its height \(h\) (in feet) above the ground at any time \(t\) (in seconds)is given by the formula \(h=32t-16t^2\). Find the times at which the object is on the ground by letting \(h=0\) in the equation and solving for \(t\).

Choose instructor to watch:
Molly S. cc
Molly S.
Gordon cc
Gordon
Problem  16

Graph and solve: \[-5t\leq 30\]

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Gordon cc
Gordon
Problem  17

Graph and solve: \[5-\frac{3}{2}x>-1\]

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Gordon cc
Gordon
Problem  18

Graph and solve: \[1.6x-2<0.8x+2.8\]

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Gordon cc
Gordon
Problem  19

Graph and solve: \[3(2y+4)\geq 5(y-8)\]

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Gordon cc
Gordon
Problem  20

Solve: \[\left\lvert\frac{1}{4}x-1\right\rvert=\frac{1}{2}\]

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Gordon cc
Gordon
Problem  21

Solve: \[\lvert3-2x\rvert +5=2\]

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Gordon cc
Gordon
Problem  22

Graph and solve: \[\lvert6x-1\rvert>7\]

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Gordon cc
Gordon
Problem  23

A rectangle is twice as long as it is wide. The perimeter is \(36\) inches. Find the dimensions.

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Gordon cc
Gordon
Problem  24

Graph and solve: \[\lvert3x-5\rvert-4\leq 3\]

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Joshua cc
Joshua
Lauren cc
Lauren
Gordon espanol spanish
Gordon
Problem  25

Graph and solve: \[\lvert5-4x\rvert\geq -7\]

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Gordon cc
Gordon
Kendra cc
Kendra
Problem  26

Graph and solve: \[\lvert 4t-1 \rvert<-3\]

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Kendra cc
Kendra
Gordon cc
Gordon