All Questions ⁺⁰237665 Questions

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535

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help

Solve the quadratic x^2 - 10x + 9 = 0.

Guest May 16, 2020

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374

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counting

Find the number of ways of coloring the sides of a square with four different colors, so that no two adajcent sides have the same color.

Guest May 16, 2020

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672

1

Math

Starting at home, Ishaan traveled uphill to the grocery store for 121212 minutes at just 151515 mph. He then traveled back home along the same path downhill at a speed of 303030 mph.
What is his average speed for the read more ..

off-topic

Guest May 16, 2020

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522

1

I don't know... :(

Equilateral triangle ABC has centroid G. Triangle A'B'C' is the image of triangle ABC upon a dilation with center G and scale factor -2/3. Let K be the area of the region that is within both triangles. Find K/[ABC].

Thank you read more ..

Guest May 16, 2020

+1

436

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+5

komplex numbers z^q = i

help :)

Examine the equation
read more ..

Porci May 16, 2020

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609

1

probability

If three standard six-sided dice are rolled, what is the probability that the sum of the numbers on the top faces is 17 or 18?

Guest May 16, 2020

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507

1

help

The prime factorization of 1995, which is 3 × 5 × 7 × 19, uses each odd digit exactly once and 1995 is the smallest positive integer with this property. What is the next smallest?

Guest May 16, 2020

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841

2

please help

A circle passes through two diagonally opposite vertices of a 3-inch by 4-inch rectangle. What is the least possible distance between the center of the circle and a vertex of the rectangle? Express your answer as a common fraction.

Guest May 16, 2020

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546

1

help

Ezra spent $60 on gas each week for a period of three weeks. The first week gas was $3 per gallon, the second week it was $4 per gallon, and the third week it was $5 per gallon. What was the average amount Ezra paid per gallon of gas over this three-week read more ..

Guest May 16, 2020

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483

2

can someone help me please

https://web2.0calc.com/questions/helpelp

Guest May 16, 2020

+2

594

2

+284

Geometry Question

In square ABCD, E and F are the midpoints of BC and CD, respectively. Line segments BF and AE intersect at G. Let M be the midpoint of AB, and let N be the intersection of AE and DM.

1.) Show that quadrilaterals GFDN and GBMN are read more ..

Caffeine May 16, 2020

+1

581

2

geometry

As the triangles spiral out from the smallest 1 unit triangle, their sides grow by 1 unit with each new triangle. After every 6 triangles the point is completely rotated, and this process continues indefinitely. What will be the area read more ..

Guest May 16, 2020

0

581

1

please help me! :

Seven friends count the change in their pockets. They have $0.00, $1.25, $0.02, $2.00, $10.75, $0.40, and $0.00.$ What is the average amount of pocket change per person? (Answer in the same format as the amounts above, i.e. dollars and cents. You do not read more ..

Guest May 16, 2020

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393

2

help

Find the largest prime p such that 1991p + 1 is a perfect square.

Guest May 16, 2020

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735

1

Halp plz

Suppose we shuffle a deck and draw the top card. What is the probability that this card is a red card or a face card (or possibly both)?

Guest May 16, 2020

0

504

1

geometry

The sides of a triangle are 3,4,5 cm .Find the distance between incentre and circumcentre..

Guest May 16, 2020

0

583

1

Plz help

How many ways are there for a club with 101 members to elect a pair of co-presidents?
For our next couple of problems, we’re going to use a deck of playing cards as an example. In case anyone does not know, a standard American deck of cards contains read more ..

Guest May 16, 2020

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503

1

help please

If f(x) = ax^2 + bx + c, f(1) = 0, f(2) = 1, and f(3) = 8, find c.

Guest May 16, 2020

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2258

6

helpelp

In triangle ABC, point X is on side BC such that XA = 13, XB = 14, XC = 4, and the circumcircles of triangles APB and APC have the same radius. Find the area of triangle ABC.

I'm confused as to how to read more ..

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Guest May 16, 2020

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705

2

help

Sam and Delilah are reading different books. Today, Sam and Delilah read
one chapter in their respective books, and they each read more than one page.
Interestingly, they read the same number of pages, but the sum of the page
numbers for the chapter read more ..

Guest May 16, 2020

+1

539

1

+284

Please Help!

In square ABCD, E and F are the midpoints of BC and CD, respectively. Line segments BF and AE intersect at G. Let M be the midpoint of AB, and let N be the intersection of AE and DM.

1.) Show that quadrilaterals GFDN and GBMN are read more ..

Caffeine May 16, 2020

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696

2

i really need help asap! PLZ HELP

Determine the unique pair of real numbers (x,y) satisfying

Guest May 16, 2020

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