All Questions ⁺⁰237737 Questions

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150

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Probability

Help with this needed
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 Apr 2, 2023

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162

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NaN

Guest Apr 2, 2023

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161

1

-2+(-7/2)=

Guest Apr 2, 2023

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151

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Counting

I need help here
Six children are each offered a single scoop of any of 3 flavors of ice cream from the Combinatorial Creamery. In how many ways can each child choose a flavor for their scoop of ice cream so that each flavor of ice read more ..

Guest Apr 2, 2023

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162

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Algebra

We are looking to factor 23x^2 + kx - 5 + x^2 - 3. Some values of k allow us to factor it as a product of linear binomials with integer coefficients. what are all such values of k?

Guest Apr 2, 2023

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71

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Counting

You are given the 4 x 4 grid below.
(a) Find the number of ways of placing 8 counters in the squares (at most one counter per square), so that each row contains exactly two counters.
(b) Find the number of ways read more ..

Guest Apr 2, 2023

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149

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Probability

Two points on a circle of radius 1 are chosen at random. Find the probability that the distance between the two points is at most 1.5.

Guest Apr 2, 2023

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152

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geometry

Let ABC be a right triangle, and let H be the point on side AB so that CH is perpendicular to AB. Prove that (x + h)^2*(y + h)^2 = (a + b)^4.

Guest Apr 2, 2023

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161

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Probability

Need help with probability
My sock drawer contains two red socks, two white socks, and two blue socks. For three days in a row, I pull out two socks out of my sock drawer at random. What is the probability that I get matching read more ..

Guest Apr 2, 2023

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165

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Probability

A bag contains five white balls and three black balls. Your goal is to draw two white balls.
(a) You simultaneously draw two balls at random. What is the probability that they are both white?
(b) You simultaneously draw two balls read more ..

Guest Apr 2, 2023

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counting

Syd chooses two different primes, both of which are greater than and multiplies them. The resulting product is less than How many different products could Syd have ended up with?

Guest Apr 2, 2023

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179

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Distributions

Need help help soon
Find the number of ways of placing 4 balls in 7 boxes if the balls are indistinguishable and the boxes are indistinguishable.

Guest Apr 2, 2023

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155

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How many intersections are there between the graphs of $f(x) = 0.8x$ and $g(x) = \lfloor x \rfloor$?

How many intersections are there between the graphs of f(x)=0.8x and g(x)=\floor x \rfloor?

Guest Apr 2, 2023

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155

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Algebra

Let r be a root of x^3 - 2x + 5 = x^3 - x^2 + 9. Show that none of r, r^2, or r^3 is irrational.

Guest Apr 2, 2023

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159

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Probability

A box contains 24 tiles. Each tile has certain properties:
Each tile is made of wood or plastic.
Each tile is red, yellow, or blue.
Each tile is a triangle, square, pentagon, or circle.
There is exactly one tile read more ..

Guest Apr 2, 2023

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149

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+1124

Infinity Sigma

Hi good friends,
I am quite stuck with this one, I do not really know HOW to even start off with this. Please advise?..
a Convergent Geometric series consisting of only positive terms has first term a, constant ratio r and nth read more ..

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juriemagic Apr 2, 2023

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157

8

+1124

Sigma determine value

Hi friends,
I have this sum..
What I did was:
For the first summation: read more ..

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juriemagic Apr 2, 2023

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96

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Самолёт летит со скоростью 378 км/ч. Сколько метров он преодолевает за одну секунду?

Самолёт летит со скоростью 378 км/ч. Сколько метров он преодолевает за одну секунду?

Guest Apr 2, 2023

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154

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Pythagoreon and Theorem

Arlington is 7.9 miles due north of the airport, and Manchester is 5.7 miles due east of the airport. How far apart are Arlington and Manchester? If necessary, round to the nearest tenth.

Guest Apr 2, 2023

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150

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counting

Joanna has six beads that she wants to assemble into a bracelet. Two of the beads have the same color, and the other four all have the same color. How many different ways can Joanna assemble her bracelet? (Two bracelets are considered identical if one can read more ..

Guest Apr 2, 2023

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148

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Physics Problem Hard

Amara is sitting on her sled. Her and the sled have a combined mass of $50.5\text{ kg}$. While on top of the hill, she is pushed with a constant force of $F_\text{applied}$ at an angle of $\theta = 41.2^\circ$ above the horizontal for $11.4\text{ s}$ until read more ..

Guest Apr 2, 2023

Apr 1, 2023

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147

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counting

Help I need to count this
Catherine rolls a standard 6-sided die five times, and the product of her rolls is . How many different sequences of rolls could there have been? (The order of the rolls matters.)

Guest Apr 1, 2023

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