All Questions ⁺⁰237720 Questions

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439

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help geometry

Rhombus ABCD has perimeter 148, and one of its diagonals has length 20. How long is the other diagonal?

Guest Jun 17, 2021

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472

4

Hey all, a repost

https://web2.0calc.com/questions/hey-guys-really-need-help-hints-would-even-help-really-stuck

Guest Jun 17, 2021

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420

1

geometry

Let triangle ABC be a right triangle, and let H be the point on side AB so that CH is perpendicular to AB.

If BC = 5 and AC = 12 and angle C = 90 degrees, then find CH.

Guest Jun 17, 2021

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438

2

help geometry

TP is a line that tangent to a circle centered at O. If PQ∥TO and ∠OTP=28∘, find the measure of ∠POQ in degrees.

read more ..

Guest Jun 17, 2021

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418

1

Coordinates

Find the point on the line -6x - 5y + 1 = 0 which is closest to the point (3,1).

Guest Jun 17, 2021

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430

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Algebra

If a + b = 7 and a^3 + b^3 = 42, what is the value of the sum a^2 + b^2? Express your answer as a common fraction.

Guest Jun 17, 2021

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415

1

Help quadratic

Find the quadratic polynomial f(x) such that f(0) = 3, f(1) = -5, and f(2) = 7.

Guest Jun 17, 2021

0

446

1

Please can I have help

PART 1
In the SuperLottery, three balls are drawn (at random) from ten white balls numbered from 1 to 10, and one SuperBall is drawn (at random) from ten red balls numbered from 11 to 20 . When you buy a ticket, you choose three read more ..

Guest Jun 17, 2021

Jun 16, 2021

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595

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Can I please have help?

Let and be points on a circle. Let line and the tangent to the circle at intersect at If , and , then find

I know there is another thread on this, but it doesn't read more ..

Guest Jun 16, 2021

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454

1

Help?

(100x100)+(100x100)=(Cxc)

Trying to figure out the length of a homerun fence. Each foul pole is 100' from home plate and the fence goes straight across like a triangle. How long of a fence will I need?

Guest Jun 16, 2021

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441

1

Algebra

The value of y varies inversely as sqrt(x) and when x=2, y=4. What is x when y=16?

Guest Jun 16, 2021

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659

19

+147

CPhill Pls Help!

1. Aurora hit a baseball with an initial velocity of 70 feet per second at an angle of 30° with the horizontal. The ball hit her bat when the ball was 3 feet above the ground.
(a) No one interferes read more ..

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mnkmnk Jun 16, 2021

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368

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help math

Ammonia and water mixture fills a 5 gallon container. Eighty percent of the mixture is ammonia. Some of the mixture will be drained and replaced with pure water. If a five gallon mixture of fifty percent ammonia is desired, how many quarts of the mixture read more ..

Guest Jun 16, 2021

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472

1

need help

If m is the smallest positive integer such that m! is a multiple of 4125, and n is the smallest positive integer such that n! is a multiple of 2816000, then find n-m.

Guest Jun 16, 2021

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554

5

pls help me

A tank holds 100 gallons of a thoroughly mixed solution which is 50% alcohol. Twenty-five gallons are drained from the tank and replaced with a solution that is 20% alchohol. The solution in the tank is thoroughly mixed. This procedure is repeated 2 more read more ..

amygdaleon305 ●●●●●

Guest Jun 16, 2021

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504

3

geometry

What is the measure (in degrees) of the smallest interior angle of a triangle in which the exterior angle measures have the ratio 3:5:7?

Guest Jun 16, 2021

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405

1

help me ep since no one else is :(

What interval consists of all w which satisfy ${\bf neither}$$ -2(6+2w)\le -16$ nor $-3w\ge 18$?

Guest Jun 16, 2021

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437

1

Math Help Needed

If $3x+7=2$ (mod $16$), then $2x+11$ is congruent (mod $16$) to what integer between $0$ and $15$, inclusive?

Guest Jun 16, 2021

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290

0

physics

Guest Jun 16, 2021

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408

1

Please Help.

Guest Jun 16, 2021

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475

1

Hard clock problem

Shortly after 10 'o clock, the hands of a clock made a 90 degree angle. What's the time?

Guest Jun 16, 2021

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412

1

HELP ASAP PLEASE

What interval consists of all $w$ which satisfy ${\bf neither}$ $-2(6+2w)\le -16$ nor $-3w\ge 18$ ?

Guest Jun 16, 2021

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460

2

pls help

A carton contains milk that is 2% fat, an amount that is 40% less fat than the amount contained in a carton of whole milk. What is the percentage of fat in whole milk? Pls help me ◕‿‿◕

Guest Jun 16, 2021

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943

6

HELP QUICK

The sum of the squares of two nonnegative numbers is 327. The product of the two numbers is 101. What is the sum of the two numbers?

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Guest Jun 16, 2021

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642

2

CPhil - your prev solution didn't make sense - please explain More - Thx

Shortly after 10 'o clock, the hands of a clock made a 90 degree angle. What's the time?

Guest Jun 16, 2021

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