All Questions ⁺⁰237665 Questions

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640

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PLEASE HELP THANKS!

Let u,v and w be vectors satisfying
Then what are equal to?

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littlemixfan Oct 16, 2020

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1028

3

The display of a 24-hour digital clock shows hours and minutes

The display of a 24-hour digital clock shows hours and minutes in the format XX:XX. For what fraction of a day is at least one 0 displayed on this clock?

Guest Oct 16, 2020

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573

2

geometry

Minor arc AB in the diagram is 30 degrees and the radius of the circle is 16. Find the area of circular segment AB.

read more ..

Guest Oct 16, 2020

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1096

4

please help asap!!

Let X, Y, and Z be points on a circle. Let XY and the tangent to the circle at Z intersect at W. If WX = 4, WZ = 8, and WY is perpendicular to WZ, then find YZ.
read more ..

Guest Oct 16, 2020

0

1063

1

A rectangular building is 4 meters by 6 meters

A rectangular building is 4 meters by 6 meters. A dog is tied to a rope that is 4 meters long, and the other end is tied to the midpoint of one of the long sides of the building. Find the total area of the region that the dog can reach (not including the read more ..

Guest Oct 16, 2020

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487

1

geometry

Let A, B, and C, be three points on a line such that AB = 2 and BC = 5. Semicircles are drawn with diameters AB, AC, and BC. Find the area of the shaded region.

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Guest Oct 16, 2020

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586

1

i need help

A bird flies from the bottom of a canyon that is 72 2/5 feet below sea level to a nest that is 721 4/5 feet above sea level. What is the difference in elevation between the bottom of the canyon and the bird's nest?

Guest Oct 16, 2020

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470

1

please help

Two hundred fence posts are to be placed into the ground in a straight line, 3m apart. The fence posts are stacked in a pile along this same line, 3m from the position of the first post to be put in. Maybell is going to put in the posts one at a time in read more ..

Guest Oct 16, 2020

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515

1

hey smart peeps help me out pls

how could you make a GOOD word problem with -3x-10

Guest Oct 16, 2020

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743

2

number theory

The number 15 factorial ends in p zeros when converted to base 9. Find p

Guest Oct 16, 2020

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330

0

Algebra/Precalculus Question on finding all complex zeroes and one is given and use synthetic division to find the rest of the complex 0's.

Please help with this question, and please use synthetic division as my school requires the use of synthetic division instead of long division.

Guest Oct 16, 2020

0

395

0

How many nonzero terms are in the expansion of

How many nonzero terms are in the expansion of

Guest Oct 16, 2020

Oct 15, 2020

0

574

4

geometry

Three concentric circles are drawn such that the area of the smallest circle is equal to the area of each of the rings. If the radius of the largest circle is 18 cm, what is the radius of the smallest circle?

Guest Oct 15, 2020

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603

1

help please

if three straws are chosen at random from a set of 10 straws whose lengths are 1cm, 2cm 3cm, 4cm, 5cm 6cm, 7cm, 8cm, 9cm, and 10 cm, find the probability that the three straws will form a triangle.

Guest Oct 15, 2020

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538

1

sphere

The surface area of a sphere is A pi cm^2 and the volume of the sphere is B pi cm^3. If A/B = 1/2, then what is the radius of the sphere?

Guest Oct 15, 2020

0

915

3

Solution of System of Equation

Estimate the solution to the following system of equations by graphing.

Equations:
5x-4y=-20 read more ..

Guest Oct 15, 2020

0

612

1

+149

4 Challenge Questions

What is the remainder when 2013^2013 is divided by 13?

What is the remainder when 17^77 is divided by 35?
read more ..

Nikhil Oct 15, 2020

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537

1

counting

In a certain region all license plates are composed of three letters followed by three numbers, or three numbers followed by three letters. The only restriction is that zero can never be the first of the three numbers. Find how many license plates are possible. read more ..

Guest Oct 15, 2020

0

586

1

+149

PLEASE QUICKLY!!!

What is the smallest positive integer n! such that the rightmost three digits of n! and (n+1)! are the same?

Nikhil Oct 15, 2020

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363

0

number theory

In every numeration system (base b) there is a three-digit integer that is (b+1) times the sum of its digits. In base ten the number is 198. In base three the number is 121. Find the number in base eight that has this property read more ..

Guest Oct 15, 2020

0

474

1

number theory

If a, b, and c are positive integers less than 13 such that
2*a*b + b*c + c*a == 0 (mod 13)
a*b + 2*b*c + c*a == 4*a*b*c (mod 13)
a*b + b*c + 2*c*a == 8*a*b*c (mod 13) read more ..

Guest Oct 15, 2020

0

432

2

counting

Find the no. of permutations of letters a , b , c , d, e , f , g taken all at a time if "beg" pattern cannot appear in any word.

Guest Oct 15, 2020

0

434

2

large prime

The number 2^4253 -1 is a very large prime find how many digits it would take to write the number in decimal form. ( Hint: Log 2 is an interesting irrational number It's the power of 10 that gives 2, in the same way, that 3 is the power of 10 that read more ..

Guest Oct 15, 2020

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