All Questions ⁺⁰237690 Questions

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155

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Counting

A debate team consists of 5 freshmen and 4 sophomores. (Everyone is distinguishable.) In how many ways can they stand in line, so at least two of the sophomores are standing next to each other, and at least two of the freshmen are at the ends read more ..

Guest Feb 25, 2023

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161

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Counting

Help plz with counting

Find the number of ways of arranging the numbers 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 in a row so that the product of any two adjacent numbers is even or a mutliple of 3

Guest Feb 25, 2023

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187

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Precalc help

Thank you in advance!

Guest Feb 25, 2023

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161

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можно ли забить в калькулятор алгоритм вычислений, что бы калькулятор его выполнял без нажатия кнопок?

можно ли забить в калькулятор алгоритм вычислений, что бы он выполнял его без нажатия кнопок

Guest Feb 25, 2023

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208

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Law of Sines

In ΔOPQ, p = 6.3 cm, �m∠O=149° and �m∠P=29°. Find the length of q, to the nearest 10th of a centimeter.

Guest Feb 25, 2023

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206

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count

How to count this

There are 97 students in South High School. South High School offers only Chinese and Spanish. There are more students in Chinese than in Spanish, and every student takes at least one language. If students read more ..

Guest Feb 25, 2023

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177

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A soccer ball is kicked from the ground with an initial speed of 19.0 m/s at an upward angle of 42.9˚. A player 51.8 m away in the direction

A soccer ball is kicked from the ground with an initial speed of 19.0 m/s at an upward angle of 42.9˚. A player 51.8 m away in the direction of the kick starts running to meet the ball at that instant. What must be his average speed if he is to meet the read more ..

Guest Feb 25, 2023

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191

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Counting

Find the number of positive integers that satisfy both the following conditions:
Each digit is a 1 or a 2
The sum of the digits is 3

Guest Feb 25, 2023

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191

3

+70

please help

How many -letter "words" can be formed from the standard -letter alphabet, if the first letter must be a vowel (A, E, I, O, or U)? (We aren't necessarily talking about English words; something like EQX is perfectly valid here.)
read more ..

sheeshers Feb 25, 2023

Feb 24, 2023

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176

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Hi, need some help

The ellipse x^2/49 +y^2/b^2= 1 has foci at (5, 0) and (−5, 0).
(a) Find the length of the semi-major axis of this ellipse.
(b) Compute the value of b.

Guest Feb 24, 2023

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170

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Probability

I need the answer to this

Right triangle XYZ has legs of length XY = 12 and YZ = 6. Point D is chosen at random within the triangle XYZ. What is the probability that the area of triangle XYD is at most 20?

Guest Feb 24, 2023

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161

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Probability

How this work

We define a bow-tie quadrilateral as a quadrilateral where two sides cross each other. An example of a bow-tie quadrilatera is shown below. distinct points are chosen on a circle. We draw all read more ..

Guest Feb 24, 2023

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198

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counting

I need help here plz

Three adults and three children are to be seated at a circular table. In how many different ways can they be seated if each child must be next to at least one adult? (Two seatings are considered read more ..

Guest Feb 24, 2023

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185

2

HELP!!!!!

Add $1_3 + 12_3 + 212_3 + 2121_3.$ Express your answer in base 3.

Guest Feb 24, 2023

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203

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A ramp has an angle of inclination of 20. It has a vertical

A ramp has an angle of inclination of 20. It has a vertical
height of 1.8 m. What is the length, L meters, of the ramp?

Guest Feb 24, 2023

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156

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Counting

Sam writes down the numbers 1, 2, 3, ..., 99

(a) How many digits did Sam write, in total?
(b) Sam chooses one of the digits written down, at random. What is the probability that Sam chooses a 0? read more ..

Guest Feb 24, 2023

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157

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Coordinates

Points A, B, and C are given in the coordinate plane. There exists a point Q and a constant k such that for any point P,
PA^2 + PB^2 + PC^2 = 3PQ^2 + k
If A = , B = , and C = , then find the constant k.

Guest Feb 24, 2023

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158

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solving real world problems with linear Equations

Otis paints a home for 45$ hour plus 75$ for supplies. Shireen paints a home for 55$ per hour plus 30$ for supplies

Guest Feb 24, 2023

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189

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Algebra help fast

Fill in the blanks so that the resulting equation has no solutions.With the following 3p,p,5p,7,0 . The format is __+__=__+__. Ive tried 3p+p=5p+0 because I thought the simplified equation would be 4p=5p which isnt possible right? But that was wrong read more ..

Guest Feb 24, 2023

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162

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Counting

Help with grid

Each unit square of the 4 x 4 grid below is to be filled in with the number 1, 2, 3 or 4 so that read more ..

Guest Feb 24, 2023

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157

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Algebra

Find all solultions of the equation |x^2 - 30x - 1| + |x^2 - 30x + 1| = 30.

Guest Feb 24, 2023

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142

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9% of 25000

what is 9% of 25000

Guest Feb 24, 2023

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