All Questions ⁺⁰230590 Questions

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197

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help algebra

The sum of the ages of Anna, Bernard and Carl is 32 years. Bernard is 6 years older than Anna, and Carl is 8 years older than Bernard. What is Anna age?

Guest Mar 7, 2022

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285

3

need help

Find all solutions to the equation (x - 1)^2 = -4 + 4x.

Guest Mar 7, 2022

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196

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Complex numbers

Solve z^3 = 8*i in complex numbers.

Guest Mar 7, 2022

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295

2

(2)/(3)x-3=(2)/(5) rewrite without fractions

(2)/(3)x-3=(2)/(5) rewrite without fractions

Guest Mar 7, 2022

0

146

0

Algebra

There are values A and B such that
(Bx - 11)/(x^2 - 7x + 10) = A/(x - 2) + 8/(x - 5)
Find A+B.

Guest Mar 7, 2022

0

265

1

Ratio

Melanie has a 4 gallon mixture of “homemade” orange paint mixed with red and yellow paint at a 3:7 ratio. However, the orange is a little bit too red to her liking,and she realized that she actually wanted a ratio instead. Fortunately, she hasa lot of yellow read more ..

Guest Mar 7, 2022

0

267

1

Please help

Suppose we have a bag with 10 slips of paper in it. Eight slips have a 3 on them and the other two have a 9 on them.
How many 's do we have to add to make the expected value equal to 6?

Guest Mar 7, 2022

0

265

2

Please help

Suppose we have a bag with 10 slips of paper in it. Eight slips have a 3 on them and the other two have a 9 on them.
How many 's do we have to add to make the expected value equal to 6?

Guest Mar 7, 2022

0

251

2

Math help

Suppose we have a bag with 10 slips of paper in it. Eight slips have a 3 on them and the other two have a 9 on them.
How many 9's do I have to add before the expected value is at least 8?

Guest Mar 7, 2022

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274

3

math problem

Four years ago Arthur is 11 times as old as his son Arthur Jr, but four years from now, Arthur will only be times as old as Jr. What is Arthur’s age when he is twice as old as Arthur Jr?

Guest Mar 7, 2022

Mar 6, 2022

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259

1

help plz

Siblings Jason, Kent, and Larry decided to plant some seeds in their garden. They started promptly starting at 1:00pm. With the three of them working together, it should take three hours.At 2:55pm, Kent received a phone call and had to go. Jason and Larry read more ..

Guest Mar 6, 2022

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483

1

+234

The entire graph of the function is shown in the figure below. Write the domain and range of as intervals or unions of intervals.

The entire graph of the function f is shown in the figure below.
Write the domain and range of f as intervals or unions of intervals.

read more ..

skye25 Mar 6, 2022

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302

1

+234

Use the graph of the function below to answer the questions.

Use the graph of the function below to answer the questions

skye25 Mar 6, 2022

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273

1

Geometry

In triangle XYZ, Y = 45 degrees and Z = degrees. If XZ = 4, then what is XY?

Guest Mar 6, 2022

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162

0

Complex equation

The equation
x/(x - 1) + x/(x + 8) = kx
has exactly two complex roots. Find all possible complex values for k. Enter all the possible values, separated by commas.

Guest Mar 6, 2022

0

207

1

Math problem

Three consecutive positive odd integers a, b and c satisfy b^2 - a^2 = and c^2 - b^2 > 0. What is the value of c^2 - b^2?

Guest Mar 6, 2022

0

144

0

Geometry problem

In trapezoid ABCD, sides AB and CD are paralllel, A = 2D and C = 3B + A. Find B.

Guest Mar 6, 2022

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246

1

help complex numbers

For all complex numbers z, let
f(z) = z^2 if z is not real
f(z) = z^3 if z is real
Find f(f(f(f(1+i)))). read more ..

Guest Mar 6, 2022

0

249

3

I NEED HELP PLZZ

Consider the graph of r= theta for theta > 0 given in radians, also known as the Archimedean spiral. Prove that the intersections of this graph with any ray whose initial point is the origin are equidistant from each other. What is that distance?
Here's read more ..

Guest Mar 6, 2022

0

272

1

Function

Let
f(x) = 4x + 1 if x <=3
f(x) = 18 - 4x if x > 3
Find the sum of all values of x such that f(x) = 0. read more ..

Guest Mar 6, 2022

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134

0

geometry

Given right triangle ABC with altitude BD drawn to hypotenuse AC. If AB=2 and AC=24, what is the length of AD?

Guest Mar 6, 2022

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