All Questions

993

Charles plots the point with the polar coordinates (−5,−3π/4). How does he plot this point?

Charles plots the point with the polar coordinates (−5,−3π/4). How does he plot this point?
Charles first determines which line the angle of rotation places the point on. This line tells Charles that the point must lie in _____ if r is read more ..

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Guest May 15, 2020

572

geometry

In the right triangle, a height is drawn to the hypotenuse. Find x+y+z.

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Guest May 15, 2020

499

trig

Find the smallest positive angle x satisfying cos(3x) + sin(3x) = 0.

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Guest May 15, 2020

519

help

Solve 9^(2x) = 27^(3x + 1).

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Guest May 15, 2020

923

Please help and explain on geometry question.

Let PQRS be a square with side length 10. The points X and Y lie outside the square such that XQ = 6, XP = 8, YS = 6, and YR = 8. Find XY^2.
read more ..

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Guest May 15, 2020

449

Find angle please explain

Let B, A, and D be three consecutive vertices of a regular 18-gon. A regular heptagon is constructed on , with a vertex C next to A. Find , in degrees.
read more ..

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Guest May 15, 2020

1332

+42

What does P(A U B) mean?

What do the U, upside-down U and the line mean in this question? Added a table for relevance

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matthewicee May 15, 2020

538

help

a mixture contains milk and water in the ratio 5 : 3. if 4 liters of this mixture is replaced ( from 20 liter) by 4 liters of milk then the ratio of milk to water in new mixture will be:

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Guest May 15, 2020

673

+280

Multiplying Complex Numbers

Simplify the Complex Expression:
(8-√-11) (8+√-11)

I keep on getting 76, even though I know the answer is 75. If someone could explain what I'm doing wrong, I'd appreciate that. Thank you.
Here's my work: read more ..

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auxiarc May 15, 2020

441

coordinates

What is the area of the triangle bounded by the lines y = 2x, y = -x/2, and x = 4?

Guest May 15, 2020

529

I fell really stuck!

Joe can paint a garage in 24 hours, and Bobby can paint the same garage in 12 hours. The two boys and their father can paint the garage in 4 hours. How long would it take the father to paint the garage?

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Guest May 15, 2020

536

help please

Write 0.630630630... as a fraction.

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Guest May 15, 2020

1012

help

What is the area of a rhombus of side 13 such that the sum of its two diagonals is 34?

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Guest May 15, 2020

608

help...

Two regular pentagons and a regular decagon, all with the same side length, can completely surround a point, as shown.
read more ..

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Guest May 15, 2020

1036

+47

Math, please help!

1. Consider the polar equation
(a) Complete the tables for the given values of . Round your answer to the nearest tenth needed.
(b) Graph the equation.
0 pi/6 read more ..

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Vanessadeirdre May 15, 2020

536

help with algebra

The quadratic polynomial p(x) leaves a remainder of 1 on division by x - 1 or x - 2. The product of the roots of p(x) is 1. What is the sum of the roots of p(x)?

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Guest May 15, 2020

1004

pleaseeee help!!!

A central angle of a circle whose radius is 25 centimeters subtends an arc whose length is 5π/12 centimeters.
What is the radian measure of the central angle?

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Guest May 15, 2020

May 14, 2020

2203

please help me with these questions :(

1. Let be the origin. Points and lie in the first quadrant. The slope of line segment is and the slope of line segment is If then compute the slope of line segment read more ..

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Guest May 14, 2020

533

help

Simplify

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Guest May 14, 2020

513

Answer this!

6.2m + 4.2m + 2.8+ 3m + 3.4m + 7.2m

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Guest May 14, 2020

507

please help

If sin(x) = cos(y) = 1/3 and x, y are acute, then find sin(x + y).

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Guest May 14, 2020

1699

i need help asap!!!!!

Angle x is a third quadrant angle such that cosx=−23 .
What is the exact value of cos(x2) ?
Enter your answer, in simplest radical form, in the box.

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Guest May 14, 2020

1700

What are the fourth roots of 2√3−2i ? Enter the roots in order of increasing angle measure.

What are the fourth roots of 2√3−2i ? Enter the roots in order of increasing angle measure.

___cis(___)
read more ..

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Guest May 14, 2020

1205

+13

please help!!!!

Verify the identity.
cosx+cosxcot2x=cotxcscx

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cinnamoroll May 14, 2020

1515

+280

Complex Numbers - Please help:(

How is multiplying 3 - 2i by i2 represented on the complex plane?

The complex number 3 - 2i lies in _____ of the complex plane. When any complex number is multiplied by the imaginary unit, the read more ..

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auxiarc May 14, 2020

All Questions ⁺⁰237782 Questions

Charles plots the point with the polar coordinates (−5,−3π/4). How does he plot this point?

geometry

trig

help

Please help and explain on geometry question.

Find angle please explain

What does P(A U B) mean?

help

Multiplying Complex Numbers

coordinates

I fell really stuck!

help please

help

help...

Math, please help!

help with algebra

pleaseeee help!!!

please help me with these questions :(

help

Answer this!

please help

i need help asap!!!!!

What are the fourth roots of 2√3−2i ? Enter the roots in order of increasing angle measure.

please help!!!!

Complex Numbers - Please help:(

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