All Questions ⁺⁰230619 Questions

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help - simple equation

16+8x-25=-7(3-x)+3x

anybody know the steps for solving?

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Guest Nov 17, 2021

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314

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confusion on vocab, need some explaning!

"The set of all values that a function can take as inputs is called the _____ of the function"

I thought it was range, but this was not covered in the topic I read, any clarification?s

Guest Nov 17, 2021

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369

2

10001 2 -9999 2

Guest Nov 17, 2021

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269

4

Marco has 6 times as many stamps as Ben. Together, they have 42 stamps. How many more stamps does Marco have than Ben?

Marco has 6 times as many stamps as Ben. Together, they have 42 stamps. How many more stamps does Marco have than Ben?

Guest Nov 17, 2021

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330

1

1654m2= ha

Guest Nov 17, 2021

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322

2

+12

Please Help! (If you can give me steps that would be great!)

AB is the diameter of circle O, r is the radius, C is the midpoint of arc AB, arc CD is one-third of arc CB. Connect AD and extend it to intersect tangent line CE of circle O at E (C is the tangent point). Find the length of AE. Express your answer in terms read more ..

Fortnite Nov 17, 2021

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163

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help with ellipse

The equation of an ellipse is x^2+y^2/4=1. The equation of a line is y=3x+b. For what values of b is the line tangent to the ellipse?

Guest Nov 17, 2021

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315

1

help Algebra

x^2 + bx + b + 3 = 0 has roots of the form x = (-b +/- sqrt(7))/2, where b > 0. Find b.

Guest Nov 17, 2021

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184

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Inequalities

Let a, b, c, and d be real numbers such that a > b and c > d. Which of the below statements are true?

(A) a/c > b/d
read more ..

Guest Nov 17, 2021

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172

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Help plz

What is the minimum value of the expression 2x^2 + y^2 + 8x - 24y + 62 for real x and y?

Guest Nov 17, 2021

Nov 16, 2021

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328

2

Number Theory

How many 5-digit integers are there such that their sum and the sum of their digits =55000? Thank you for help.

Guest Nov 16, 2021

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184

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Algebra

There are numbers A$ and B for which
\[\frac A{x-1}+\frac B{x+1}=\frac{x+2+3x-8}{x^2-1}\]
for every number $x\neq\pm1$. Find B.

Guest Nov 16, 2021

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164

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answer link for original question is invalid

(a) Simplify \[\dfrac{\dbinom{n}{k}}{\dbinom{n}{k - 1}}.\] (b) For some positive integer $n,$ the expansion of $(1 + x)^n$ has three consecutive coefficients $a,$ $b,$ $c$ that satisfy $a:b:c = 1:7:35.$ What must $n$ be?

Guest Nov 16, 2021

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308

1

Geometry

Points X and Y lie on sides AB and AC respectively of triangle ABC. If AB=7, AC=10, AX=4 and AY=8, what is the ratio of the area of triangle AXY to the area of triangle ABC?

Guest Nov 16, 2021

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284

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Geometry

What is the perimeter, in cm, of quadrilateral ABCD if $AB \perp BC$, $DC \perp BC$, AB = 9 cm, DC = 4 cm, and BC = 12 cm?

Guest Nov 16, 2021

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172

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Geometry

A triangle with integer sides has perimeter 16. How many such non-congruent triangles are there? (A 3-4-5 triangle is considered congruent to a 3-5-4 triangle because we can reflect and rotate the triangles until they match up.)

Guest Nov 16, 2021

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171

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Algebra

Find all values of that satisfy the equation y/3 + 1 = (y + 3)/y + 1.

Guest Nov 16, 2021

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157

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geometry question

How many non-congruent triangles with perimeter 18 inches are there whose side lengths are all integer numbers of inches?

Guest Nov 16, 2021

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164

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Algebra

What is the constant term of the expansion of (6x + 1/(3x))^8?

Guest Nov 16, 2021

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200

1

Probability

Two cards are drawn without replacement from a standard deck of 52 cards. Determine the probability that neither card is black or an Ace.

Guest Nov 16, 2021

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