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466

helpuy

Trapezoid PQRS has bases PQ and RS. The median MN meets the diagonals PR and QS at A and B, respectively. If SR=20 and AB=7, find PQ.

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Guest May 8, 2020

-4

1463

+73

Line AC is perpendicular to the circle centered at O with radius 1 unit. The length of AC is 1.5 units.

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GAMEMASTERX40 May 8, 2020

430

help

Find the number of ways of arranging the numbers 1, 2, 3, ..., 9 in a 3 by 3 grid, so that consecutive numbers are in squares that have a side in common. For example:

3 4 5
2 1 6 read more ..

Guest May 8, 2020

1328

+73

Help pls

In parallelogram $EFGH,$ let $M$ be the midpoint of side $\overline{EF},$ and let $N$ be the midpoint of side $\overline{EH}.$ Line segments $\overline{FH}$ and $\overline{GM}$ intersect at $P,$ and line segments $\overline{FH}$ and $\overline{GN}$ intersect read more ..

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Hi121529 May 8, 2020

479

probability

A box contains three cups of chocolate ice cream, two cups of vanilla ice cream, and one cup of strawberry ice cream. A group consists of three chocolate lovers, two vanilla lovers, and one starberry lover. If everyone picks one cup of ice cream read more ..

Guest May 8, 2020

583

help

The steeple of a tower is covered in copper foil. The tower is a prism with a regular hexagonal base, a height of 100 m, and a lateral area of 2400 m2. The steeple is a pyramid with the same base as the tower and composed of equilateral triangles. What read more ..

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Guest May 8, 2020

437

help

How will the surface area of cone of height h and radius r compare to the surface area of a square pyramid of height h and apothem r?

Guest May 8, 2020

410

help

Find the minimum value of x^2 + y^2 - 6x + 22y + 99.

Guest May 8, 2020

652

Polar Form of Complex Numbers

Please explain the steps! ^.^

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Guest May 8, 2020

961

+231

help me please!!

Line l1 represents the graph of 3x + 4y = -14. Line l2 passes through the point (-5,7), and is perpendicular to line l1. If line l2 represents the graph of y=mx + b, then find m+b.

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peepeepuupuu May 8, 2020

416

geometry help pls an explanation would be helpful

In right triangle ABC,

Guest May 8, 2020

478

help please

Three A's and seven B's are arranged at random in a row. Find the probability that no two A's are adjacent.

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Guest May 8, 2020

-4

1111

+73

Line BD is tangent to a circle with diameter AB . Can some please explain this because I'm very confused...

Line BD is tangent to a circle with diameter AB. Can some please explain this because I'm very confused...

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GAMEMASTERX40 May 8, 2020

460

The expression dy/dx=x/y gives the slope at any point on the graph of the function f(x) where f(1) = 2.

The expression dy/dx=x/y gives the slope at any point on the graph of the function f(x) where f(1) = 2.

A. Write the equation of the tangent line to f(x) at point (1, 2).

B. read more ..

Guest May 8, 2020

436

PLEASE HELP!

If the area of a circle is 49π and the area of a sector is 21π, find the angle measure of the central angle that forms the sector.

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Guest May 8, 2020

1004

+1982

If we toss a pair of dice, what is the probability that a sum of 7 will appear?

If we toss a pair of dice, what is the probability that a sum of 7 will appear?

A./ 7/36

B. 1/6 read more ..

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macabresubwoofer May 8, 2020

730

probability

You choose two points on a circle, at random. What is the probability that the chord joining the two chosen points is longer than the radius?

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Guest May 8, 2020

432

help!

C is 5 years smaller than D.
B is 1 year greater than C.
A is 5 years smaller than B.
If D is 20 years old, find the age of A. read more ..

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Guest May 8, 2020

708

+87

Please help!

Let be a regular tetrahedron. Let be the center of face and define vertices and the same way. Find the ratio of the volume of tetrahedron to the volume of tetrahedron .
read more ..

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Divineology May 8, 2020

862

probability

Alice and Bob take turns flipping a coin, with Alice going first. The first player to get heads wins the game. What is the probability that Alice wins the game?

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Guest May 8, 2020

555

help

The length of each side of the squares in the figure is 9 units. Find the area of the region colored red.

read more ..

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Guest May 8, 2020

610

i don't understand

A flat-bottomed ice cream waffle cup is shaped like a 72 mm tall cone with a 42 mm diameter opening at the top, but with the bottom 24 mm of the cone replaced by a flat waffle bottom with a 14 mm diameter. To the nearest square millimeter, what area of read more ..

Guest May 8, 2020

620

I started but I don't know how to finish it

So here is my question,
"The area of trapezoid PQRS is 60. One base is 7 units longer than the other, and the height of the trapezoid is 5. Find the length of the median of trapezoid PQRS."
I have read another thread on this website read more ..

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Guest May 8, 2020

1554

+68

Question 3 asked for two possible quadrant locations of the product of

Question 3 asked for two possible quadrant locations of the product of c + di and , where c, d, e, and f are positive real numbers. The product in question 4 was two complex numbers of the form c + di and , where c, d, e, and f are positive real numbers. read more ..

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KASI20W May 8, 2020

All Questions ⁺⁰237671 Questions

helpuy

Line AC is perpendicular to the circle centered at O with radius 1 unit. The length of AC is 1.5 units.

help

Help pls

probability

help

help

help

Polar Form of Complex Numbers

help me please!!

geometry help pls an explanation would be helpful

help please

Line BD is tangent to a circle with diameter AB . Can some please explain this because I'm very confused...

The expression dy/dx=x/y gives the slope at any point on the graph of the function f(x) where f(1) = 2.

PLEASE HELP!

If we toss a pair of dice, what is the probability that a sum of 7 will appear?

probability

help!

Please help!

probability

help

i don't understand

I started but I don't know how to finish it

Question 3 asked for two possible quadrant locations of the product of

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