All Questions ⁺⁰237779 Questions

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Geometry

In the figure below, PQRS is a parallelogram of 24 and area . What is the perimeter of rectangle QOST?

Guest May 24, 2022

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Ellipse

x^2/16 + y^2/9 = 1
The equation above is an ellipse with center O. A chord AB = is parallel to the major axis. What is the area of triangle OAB

Guest May 24, 2022

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194

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Polynomials

The polynomial x^(101) + Ax + B is divisible by x^2 - 1 for some real numbers A and B. Find A + B.

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308

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Algebra

Find all real x that satisfy 9^x - 4*3^x - 6 = 0

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282

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geometry

The length of one side of a triangle is sqrt(3) + 1 cm. The two interior angles on that side are 30 and What is the area of the triangle?

Guest May 24, 2022

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218

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Quadratic

Suppose f(x) is a quadratic function such that f(1) = -24, f(4) = 0, and f(7) = . Determine the value of f(-1).

Guest May 24, 2022

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264

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Math problem

Sophie's favorite number is a two-digit number. If she reverses the digits, the result is 63 less than her favorite number. The sum of the digits in her favorite number is 11. What is Sophie's favorite number?

Guest May 24, 2022

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311

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Domain

find the domain of the rational function
g(x)= 4x*(x+5)/(x-6)

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208

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geometry

In the figure, triangles ABC and BCD are equilateral triangles. What is the value of AD / BE when expressed in simplest radical form, where E is the midpoint of BD?

read more ..

Guest May 24, 2022

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234

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help geometry.

Quinn is flying a kite. The angle of elevation formed by the kite string and the ground is 46°, and the kite string forms a straight segment that is 80 feet long.
Explain how to find the distance between the ground and the kite. Include a description read more ..

Guest May 24, 2022

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228

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One of the solutions of equation e = w is = —5,,M+5:. When is one of other two solutions if w is a complex number?

One of the solutions of equation e = w is = —5,,M+5:. When is one of other two solutions if w is a complex number?

Guest May 24, 2022

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Algebra

Let a and b be the solutions to 5x^2 + 11x + 14 = 0. Find 1/a + 1/b

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222

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Math

Using transformations, show that both these triangles are congruent

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340

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Geometry

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244

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Counting

How many positive integers less than 2020 aren’t divisible by 2, 3, 5, or 7?

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327

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liberal arts

Solve the equation below for x. If your answer is not a whole number, enter it as a fraction in lowest terms, using the slash mark ( / ) as the fraction bar. 3x+7=6x-2 x=

Guest May 24, 2022

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Arithmetic mean

The arithmetic mean of 23, 16, 30, 33 and two other numbers that differ by 2 is 27. If the smallest of these 6 numbers is discarded, find the arithmetic mean of the remaining 5 numbers.

Guest May 24, 2022

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280

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Sequences

The fifth term of an arithmetic sequence is 18, and the sum of the first 32 terms is 1448. Find the ninth term.

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278

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Sequences

the sequence 12,15, 18, 21, 51, 81,... consists of all positive multiples of 3 that contain at least one digit that is a 1. what is the 80th term of this sequence?

Guest May 24, 2022

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274

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Rate problem

The tail of a 1-mile long train exits a tunnel exactly 3 minutes after the front of the train entered the tunnel. If the train is moving miles per hour, how long is the tunnel?

Guest May 24, 2022

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235

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help algebra

When x^3 + 30x - c is divided by the remainder is 5. What is c?

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320

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math

The radius of a circle is 2 centimeters. What is the area of a sector bounded by a 45° arc?

Guest May 24, 2022

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210

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help algebra

Given that 2x = 9 and 27y = 2 find the value of xy.

Guest May 24, 2022

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