All Questions

252

+252

How many solutions of the system x - y = 3, x^2 - y = -1 are there such that both x and y are real?

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Blizzardshine Jul 1, 2022

268

help with angles

The measure of an interior angle of a regular decagon is how many degrees greater than the measure of an interior angle of a regular hexagon?

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Guest Jul 1, 2022

267

Probability

We have a cube with 4 blue faces and 2 red faces. What's the probability that if we color the faces randomly, then the red faces will be adjacent?

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Guest Jul 1, 2022

257

counting problem

Five couples were at a party. If each person shook hands exactly once with everyone, how many handshakes were exchanged? (Note: One obviously doesn't shake hands with oneself.)

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Guest Jul 1, 2022

228

help plz

How many times does the digit 9 appear in the list of all integers from 1 to 5000? (The number 99, for example, is counted twice, because 9 appears two times in it.)

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Guest Jul 1, 2022

268

counting

My club has 15 members. In how many ways can we choose a president, vice-president, secretary, and treasurer, if no member can hold more than one office?

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Guest Jul 1, 2022

249

Counting problem

How many odd five-digit counting numbers can be formed by choosing digits from the set {1, 2, 3, 4, 5, 6, 7, 8} if digits can be repeated?

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Guest Jul 1, 2022

258

need help

In a class of 40 students, 18 said they liked apple pie, 12 said they liked chocolate cake, and 15 said they did not like either. How many students in the class liked both?

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Guest Jul 1, 2022

270

+252

One root of the quadratic equation y^2 + by + c = 0, where b and c are real constants, is 3 - isqrt3. What are b and c?

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Blizzardshine Jul 1, 2022

252

HELLPPP If x = 3/4 and y = 4/3 , find the value of 1/2 time x^6 times y^7

If x = 3/4 and y = 4/3 , find the value of 1/2 x^6 y^7

also maybe show me the steps u took :D

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Guest Jul 1, 2022

269

help geometry

If altitude CD is sqrt(3) centimeters, what is the number of square centimeters in the area of ACD?

read more ..

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Guest Jul 1, 2022

282

geometry

In the diagram, the area of rectangle ABCD is 40. What is the area of MBCN?

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Guest Jul 1, 2022

254

Percent

The lengths of two opposite sides of a square are decreased by 40% while the lengths of the other two sides are increased by 60% to form a rectangle. By what percent does the square's area decrease?

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Guest Jul 1, 2022

242

Figure

In the figure, each pair of consecutive sides forms a right angle. What is the area of the figure?

read more ..

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Guest Jul 1, 2022

265

HELLPPP What is the smallest positive integer n such that the fourth root of 98n is an integer?

What is the smallest positive integer n such that the fourth root of 98n is an integer?

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Guest Jul 1, 2022

191

Triangle geometry

What is the area, in square units, of triangle ABC in the figure shown if points A, B, C and D are coplanar, angle D is a right angle, AC = 10, AB = 13 and BD = 5?

read more ..

Guest Jul 1, 2022

266

Exponents

Solve for y if 9^y = 3^6

BuilderBoi ●

Guest Jul 1, 2022

267

geometry

In the figure below, DOGS is a rectangle. If DO = 24 and OG = 12, what is the length of DG?

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Guest Jul 1, 2022

249

halp!

Find the value of given that
b/7+b^2/7^2+b^3/7^3.....=7

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Guest Jul 1, 2022

178

word problem

Jerry is presently twice as old as his brother and six years older than his sister. How many years from now will Jerry's age be of the combined ages of his brother and sister at that time?

Guest Jul 1, 2022

234

help algebra

Fill in the blacnk to make the equation true.

(___)^3*(___)*(___)^2 = x^5*y^6
read more ..

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Guest Jul 1, 2022

181

Inequality

Find the sum of all positive integers n such that 1.2*n - 4.4 < 5.2 + 0.2*n

Guest Jul 1, 2022

255

halp!

Levans writes a positive fraction in which the numerator and denominator are integers, and the numerator is $1$ greater than the denominator. He then writes several more fractions. To make each new fraction, he increases both the numerator and the denominator read more ..

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Guest Jul 1, 2022

263

Simplify

Simplify mn^3^2/(2mn)

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Guest Jul 1, 2022

261

Exponents

Fill in the blank to make the equation true:

13^5* __ = 13^17/13^11

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Guest Jul 1, 2022

All Questions ⁺⁰237232 Questions

How many solutions of the system x - y = 3, x^2 - y = -1 are there such that both x and y are real?

help with angles

Probability

counting problem

help plz

counting

Counting problem

need help

One root of the quadratic equation y^2 + by + c = 0, where b and c are real constants, is 3 - isqrt3. What are b and c?

HELLPPP If x = 3/4 and y = 4/3 , find the value of 1/2 time x^6 times y^7

help geometry

geometry

Percent

Figure

HELLPPP What is the smallest positive integer n such that the fourth root of 98n is an integer?

Triangle geometry

Exponents

geometry

halp!

word problem

help algebra

Inequality

halp!

Simplify

Exponents

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