All Questions +0 230566 Questions

Jeff will pick a card at random from ten cards numbered 1 through 10. The number on this card will indicate his starting point on the number line shown below. He will then spin the fair spinner shown below (which has three congruent sectors) and follow read more ..

Guest Dec 27, 2020

459

probability

Three cards are dealt at random from a standard deck of 52 cards. What is the probability that the first card is a 4, the second card is a heart, and the third card is a 2?

Guest Dec 27, 2020

431

three cards

When three standard dice are tossed, the numbers A,B,C are obtained. Find the probability that .ABC =40.

Guest Dec 27, 2020

342

probability problem

A Senate committee consists of 5 Republicans, 6 Democrats, and 2 Independents. A subcommittee of 4 members is randomly chosen. What is the probability that the subcommittee consists of three Republicans?

Guest Dec 27, 2020

293

help with probability

If the polynomial x^2+bx+c has exactly one real root and b=c+11, find the value of the product of all possible values of c.

Guest Dec 27, 2020

456

quadratic

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Guest Dec 27, 2020

406

Help needed

The quadratic has two imaginary roots. What is the sum of the squares of these roots? Express your answer as a decimal rounded to the nearest hundredth.

Consider the geometric sequence . What is the eighth term of the sequence? Express your answer as a common fraction.

Guest Dec 27, 2020

302

Help Asap

A palindrome is a number that reads the same forward and backward. What is the smallest 5-digit palindrome in base 2 that can be expressed as a 2-digit palindrome in a different base? Give your response in base 2.

Guest Dec 27, 2020

397

number theory

The graph of the rational function
$y=\frac{ax-b}{-2x+c}$
is as shown above. If $x_1=5$ and $y_1=4$, what is the value of a+b+c ?
read more ..

Guest Dec 27, 2020

381

plz help

Two semicircles are drawn in a 14 by 7 rectangle. Find the area of the blue region.

Guest Dec 27, 2020

511

need help

Find the ordered pair (s,t) that satisfies the system of equations
s/4 - 2t = 2
4t - 5s = 9

Guest Dec 27, 2020

435

ordered pair

The license plates in Eulerville are made of seven distinct characters, six of which are letters from A to Z inclusive and one of which is a digit from 0 to 9 inclusive. How many different Eulerville license plates include
the word “MATH” with those read more ..

Guest Dec 27, 2020

490

Help Explaining Probabilities

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Guest Dec 27, 2020

327

counting

How many ways are there to put 4 indistinguishable balls into 3 indistinguishable boxes?

Two fair 6-sided dice are rolled. What is the probability the sum rolled is 8?

Guest Dec 27, 2020

399

quick question

An integer greater than 9 and less than 100 is randomly chosen. What is the probability that its digits are greater than 7?

Guest Dec 27, 2020

405

probability

The equation \[\frac{x}{x+1} + \frac{x}{x+2} = kx\]has exactly two complex roots. Find all possible complex values for $k.$ Enter all the possible values, separated by commas.

Okay, so I know Cphill has answered read more ..

Guest Dec 27, 2020

484

This is a repost, hopefully someone can check

Triangle $ ABC$ has coodinates $A= (-4, 0)$, $B= (4 , 0)$, and $C= (0 , 3)$.
Let $P$ be the point in the first quadrant such that $\triangle ABP$ has half the area of $\triangle ABC$ but both triangles have the same perimeter. read more ..

Guest Dec 27, 2020

443

need help with geo

FInd the area of the triangle with sides sqrt(13), sqrt(61), sqrt(80).

Guest Dec 27, 2020

452

area of triangle

A square is inscribed in a circle with diameter 2. Four smaller circles are then constructed with their diameters on each of the sides of the square. Find the shaded area.

read more ..

Guest Dec 27, 2020

484

please help

Guest Dec 27, 2020

390

PLEASE HELP: What is the smallest positive integer n such that can be expressed as a terminating decimal?

Each leg of the right triangle has length 6 cm. Find the area of the green square.

Guest Dec 27, 2020

469

help geo

How many nets are there of the square-based pyramid?

Guest Dec 27, 2020

400

number of nets