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College Algebra Algebra 1 Algebra 2 Trigonometry

05/11/20

Finding Unit Vectors in Same Position

For each different vector, find a unit vector in the same direction. a.u1 = [ −5, 3]b.u2 = with point M = (2, −8) and point N = (−5, 4).c.u3 is the vector with magnitude 6 and direction... more

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College Algebra Math Algebra 2 Trigonometry

05/11/20

Sketching Vectors in Standard Position

Sketch the following vectors in standard position and find the angles between them.w1 = [ 2, 3 ]w2 = [ −4, 1 ]w3 = [ 1, −3 ] . Add all three angles and explain why the sum makes sense.

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College Algebra Math Algebra 1 Algebra 2

05/11/20

Vectors Math Problem

For each different vector, determine its magnitude a.v1 = −3 i + 7 j b.v2 = where point F = (4, −5) and point G = (−2, 3)c.v3 = 4u where u =

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College Algebra Math Trigonometry Trig

05/11/20

Vectors (Trigonometry)

Let point A = (−3, 4) and point B = (2, 8) .Sketch vector and write it in terms of components.Sketch also in standard position.

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College Algebra Math Algebra 2 Trigonometry

05/11/20

Trigonometry Word Problem

The water at a boat dock is 7 feet deep at low tide, and 11 feet deep at high tide. One day, low tide occurred at 4 am and high tide at 10 am. Find a function for the height of the tide as a... more

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College Algebra

05/09/20

If y varies directly as x and y = 7 when x = 3 find y when x = 12

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College Algebra

05/09/20

A textbook costs a bookstore $69, and the store sells it for $86.25. Find the rate of profit based on the selling price.

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College Algebra Algebra 2

05/09/20

In a distribution where the mean is 80 and the standard deviation is 5, find the largest fraction of the numbers that could meet the following requirements. Less than 70 or more than 90.

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College Algebra Math Word Problem Volume

05/08/20

PLEASE HELP! A piece of cardboard is three times as long as it is wide. It is made into a box with an open top...

>How do I set this problem up and solve it? FULL QUESTION: A piece of cardboard is three times as long as it is wide. It is made into a box with an open top by cutting 4-inch squares from each... more

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College Algebra

05/08/20

College Algebra

find a polynomial function f(x) of degree 3 with real coefficients that satisfies the following conditions zero of 0 and zero of 3 multiplying 2 ; f(4)=24

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College Algebra Algebra 2 Statistics Algebra

05/08/20

Math question word problem

Revenues for a movie rental store one Friday night are $1,000 for 427 rentals. The rental fee for a movie is $2 and the fee for video games is $2.50 each. Determine how many of each type are rented... more

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College Algebra

05/07/20

The area of a sector of a circle with a central angle of 8π/13 rad is 22 m2. Find the radius of the circle. (Round your answer to one decimal place.)

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College Algebra Algebra 2

05/07/20

What are the simplest composite and inverse functions you can imagine?

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College Algebra English Linear Algebra Linear Equations

05/06/20

Linear algebra question

Show that the following sets of vectors of R3 are linearly independentand span R3:(a) S1 = {(1, 2, 3),(3, 2, 1),(0, 0, 1)}.(b) S2 = {(3, 0, −6),(−4, 1, 7),(−2, 1, 5)}.

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College Algebra Math Algebra 1 Algebra 2

05/06/20

Finding the Area of a Parallelogram

I usually know how to find it, but I can't seem to find an equation or anything that works for this one. I have asked multiple questions about this that have gotten mixed answers so I'm... more

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College Algebra

05/06/20

The half-life of a radioactive substance is 14 days. After 7 days a sample of the substance has been reduced to a mass of 7 mg. What is the initial mass? When will there only be 0.2 left?

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College Algebra Math

05/06/20

eff and Kirk can build a 75-ft retaining wall together in 44 hours. Because Jeff has more experience, he could build the wall by himself 22 hours quicker than Kirk.

Jeff and Kirk can build a 75-ft retaining wall together in 44 hours. Because Jeff has more experience, he could build the wall by himself 22 hours quicker than Kirk. How long would it take... more

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College Algebra Math

05/06/20

Math 95 question

Find the course grades ( numerical and letter grades) for a student who has finished this course with 81% on Test 1, 78% on Test 2, 83% on Test 3,85% on Test 4, 91% on Test 5. And 71% on the Final... more

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College Algebra Math Word Problem College

05/05/20

College Algebra Question

The population of a small town in central Florida has shown a linear decline in the years 2001-2011. In 2001 the population was 25500 people. In 2011 it was 18200 people.A) Write a linear equation... more

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College Algebra Math Algebra 1 Algebra 2

05/05/20

Finding the Area of a Parallelogram

I usually know how to find it, but I can't seem to find an equation or anything that works for this one. The question is: "Find the area of a parallelogram with sides of length 6" and 8" and the... more

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College Algebra

05/05/20

Math help please?

In 2012, the population of a city was 6.14 million The exponential growth rate was 3.53% per year a) Find the exponential growth function b) Estimate the population of the city in 2018 c) When will... more

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College Algebra

05/05/20

Simplify each of the following complex numbers. (Enter your answers in the form a + bi.)

-1-√-98–––––– 2

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College Algebra

05/05/20

Evaluate the 3 × 3 determinant. Use the properties of determinants to your advantage.

2 −1 6 0 6 1 1 −2 −1

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College Algebra

05/05/20

Sam invested $2150, part of it at 6% and the rest at 8% yearly interest. The yearly income on the 8% investment was $42 more than twice the income from the 6% investment.

How much did he invest at each rate? investment at 6% $ investment at 8% $

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College Algebra

05/05/20

Give that the point (−4,13) is on the graph of a one-to-one function f(x) , find a point on the graph of f^ − 1 .

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Finding Unit Vectors in Same Position

Sketching Vectors in Standard Position

Vectors Math Problem

Vectors (Trigonometry)

Trigonometry Word Problem

If y varies directly as x and y = 7 when x = 3 find y when x = 12

A textbook costs a bookstore $69, and the store sells it for $86.25. Find the rate of profit based on the selling price.

In a distribution where the mean is 80 and the standard deviation is 5, find the largest fraction of the numbers that could meet the following requirements. Less than 70 or more than 90.

PLEASE HELP! A piece of cardboard is three times as long as it is wide. It is made into a box with an open top...

College Algebra

Math question word problem

The area of a sector of a circle with a central angle of 8π/13 rad is 22 m2. Find the radius of the circle. (Round your answer to one decimal place.)

What are the simplest composite and inverse functions you can imagine?

Linear algebra question

Finding the Area of a Parallelogram

The half-life of a radioactive substance is 14 days. After 7 days a sample of the substance has been reduced to a mass of 7 mg. What is the initial mass? When will there only be 0.2 left?

eff and Kirk can build a​ 75-ft retaining wall together in 44 hours. Because Jeff has more​ experience, he could build the wall by himself 22 hours quicker than Kirk.

Math 95 question

College Algebra Question

Finding the Area of a Parallelogram

Math help please?

Simplify each of the following complex numbers. (Enter your answers in the form a + bi.)

Evaluate the 3 × 3 determinant. Use the properties of determinants to your advantage.

Sam invested $2150, part of it at 6% and the rest at 8% yearly interest. The yearly income on the 8% investment was $42 more than twice the income from the 6% investment.

Give that the point (−4,13) is on the graph of a one-to-one function f(x) , find a point on the graph of f^ − 1 .

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eff and Kirk can build a 75-ft retaining wall together in 44 hours. Because Jeff has more experience, he could build the wall by himself 22 hours quicker than Kirk.