All Questions ⁺⁰230450 Questions

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Help me please...

What is the number of units in the area of the circle with center at and passing through ? Express read more ..

Guest Aug 2, 2022

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192

1

Domain

If h(x)$ is a function whose domain is [-8,8], and g(x) = f(x^2),then the domain of g(x) is an interval of what width?

Guest Aug 2, 2022

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207

1

help functions

Let f(x)=3x-2, and let g(x)=f(f(f(f(x)))). If the domain of g is 1 <= x <= 2, compute the range of g.

Guest Aug 2, 2022

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220

4

Tricky Algebra

Solve for n: (2-n/n+1) + (2n-4/2-n)

Guest Aug 2, 2022

+1

229

3

+140

Algebra - Algebraic Manipulation Problem

For a positive integer n , the nth triangular number is
For example, , so the third triangular number is 6.
Determine the smallest integer such that for some positive integer x .

sherwyo Aug 2, 2022

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201

2

help

What is the smallest integer value of $c$ such that the function $f(x)=\frac{x^2+1}{x^2-x+c}$ has a domain of all real numbers?

BuilderBoi ●●

Guest Aug 2, 2022

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214

3

quadratic

Let a and $b$ be the roots of the equation 2x^2 - 7x + 2 = 0.$ Find (a - 1) + (b - 1).

BuilderBoi ●●●

Guest Aug 2, 2022

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190

1

triangles

In triangle ABC, BC = 4, AC = 3*sqrt(2), and angle C = 60 degrees. Altitudes AD, BE, and CF intersect at the orthocenter H. Find AH:HD.

Guest Aug 2, 2022

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201

1

coordinates

In terms of pi, what is the area of the circle defined by the equation 2x^2+2y^2+10x-6y-48=0

Guest Aug 2, 2022

Aug 1, 2022

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202

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equation

Given that a > 0, if f(g(a)) = 8, where f(x) = x^2 + 4 and g(x) = x^2 - 4, what is the value of a?

Guest Aug 1, 2022

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206

1

Algebra

Suppose x is a positive number such that (x^3 + 8)(x + 2) = 19. What is the value of x?

Guest Aug 1, 2022

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198

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Graphing question

The parabolas defined by the equations y = -x^2 - x + 1 and y = x^2 - 3x - 3 intersect at points (a,b) and (c,d), where c >= a. What is c - a? Express your answer as a common fraction.

Guest Aug 1, 2022

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189

1

help algebra

Positive real numbers x, y satisfy the equations x^2 + y^2 = 1 and x^4 + y^4 = 17/19. Find xy.

Guest Aug 1, 2022

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204

1

pls answer asap!

Aidan has 20 ft of fence with which to build a rectangular dog run.
What is the maximum area he can enclose?

Enter your answer in the box. read more ..

Guest Aug 1, 2022

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195

1

help algebra

If a + b = 7 and a^3 + b^3 = 44, what is the value of the sum 1/a + 1/b? Express your answer as a common fraction.

Guest Aug 1, 2022

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209

2

Pz Help

Let AB be a diameter of a circle, and let C be a point on the circle such that AC = 8 and BC = 4 The angle bisector of angle ACB intersects the circle at point M. Find CM.
[asy]
unitsize(0.5 cm);
pair A, B, C, D, P;
A = (4,0); <#> B = (0,3); <#> C read more ..

Guest Aug 1, 2022

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189

1

Algebra

Completely simplify and rationalize the denominator: $$\frac{\sqrt{160}}{\sqrt{252}}\times\frac{\sqrt{245}}{\sqrt{180}}$$

Guest Aug 1, 2022

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189

2

Please help

Among the stamps that Eliot collected, 4/5 of them were local stamps and the rest were foreign stamps. After exchanging 20 local stamps for 20 foreign stamps, the number of local stamps that Eliot has becomes 8/15 of his total collection. How many local read more ..

Guest Aug 1, 2022

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166

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help

Sebastian spent 20% of his salary on transport. He spent twice as much on food as on transport and saved the rest. He saved $1200. What was his salary?

Guest Aug 1, 2022

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203

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ordered pairs

How many ordered pairs (x,y) of positive integers satisfy the inequality 4x+5y < 120?

Guest Aug 1, 2022

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204

2

PLS HELP ASAP! Due in 2 hours

Let $f(x) = x^4-3x^2 + 2$ and $g(x) = 2x^4 - 6x^2 + 2x -1$. Let $b$ be a constant. What is the smallest possible degree of the polynomial $f(x) + b\cdot g(x)$?

Guest Aug 1, 2022

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190

1

help algebra

Given that the polynomial x^2 - 15x + t = 0 has only positive integer roots, find the average of all distinct possible values of t.

Guest Aug 1, 2022

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142

0

Number Theory

Each of the digits 6,7,8,9,0 is used no more than once to form an integer N. How many possible Ns are multiples of 3?

Guest Aug 1, 2022

0

180

1

geometric sequences

We have two geometric sequences of positive real numbers:
6,a,b and a,b,1296
Solve for a

Guest Aug 1, 2022

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