All Questions ⁺⁰237827 Questions

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218

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Parabola

Find the vertex of the graph of the equation x - y^2 + 8y = 13 + y^2 - 4y.

Guest Jul 21, 2022

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209

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Minimum

The real numbers x and y satisfy (x - 3)^2 + (y - 4)^2 = 18. Find the minimum value of x^2 + y^2.

Guest Jul 21, 2022

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311

1

+91

smol question

The graph of y = f(x) is a parabola whose vertex is at (1, -2). The graph of y = f(x - 3) is also a parabola. Where is the vertex of the graph of y = f(x-3)?

for this question does the x-3 mean the vertex would be at (-2,-2) or (4,-2) read more ..

cosign Jul 21, 2022

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202

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system

Find the ordered pair (s,t) that satisfies the system
s/2 + 5t = 3 + 3t
3t - 6s = 9 - 5t

Guest Jul 21, 2022

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218

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Function

Given that f(x) = x^{-1} + x^{-1}/(1 + x), what is f(f(-2))? Express your answer as a common fraction.

Guest Jul 21, 2022

-1

332

3

+91

algebra logorithms

In some base b, log_b(5) = 14.
What is the value of log_b(25)?

can anyone help me out? read more ..

cosign Jul 21, 2022

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216

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Algebra

Find all real numbers x that satisfy the equation |x + 4| + |x - 6| = |2x - 1|.

Guest Jul 21, 2022

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310

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help algebra

Find the sum of the squares of the solutions of x^2 - 13x + 4 = -11x + 7.

Guest Jul 21, 2022

-1

329

1

+30

help pls

Terry and Tao are canoeing on a lake that is 2000 meters across from the west side of the lake to the east side. Terry rows at 60 meters per minute and Tao rows at 40 meters per minute. Terry starts rowing at 2 PM from the west end of the lake, and Tao read more ..

Gordn Jul 21, 2022

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308

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geometry

In the circle below, AB || CD, AD is a diameter of the circle, and AD = 36. What is the number of inches in the length of arc AB? Express your answer in terms of pi.

read more ..

Guest Jul 21, 2022

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306

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Please answer this!

https://web2.0calc.com/questions/help-counting_137

Guest Jul 21, 2022

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308

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Domain

If f(x) is a function whose domain is [-1, 9], and g(x) = f(2x), then the domain of g(x) is an interval of what width?

Guest Jul 21, 2022

-1

339

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+1124

BODMAS

Hi my good friends,

I have a sum here, which is quite simple, however the calculator gives the answer as 1, while I know it has to be 16
read more ..

juriemagic Jul 21, 2022

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304

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Help with counting

https://web2.0calc.com/questions/counting_98909

Guest Jul 21, 2022

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268

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help algebra

J. S. Bach’s Prelude No. 2 in C Minor consists of 144 measures with each measure containing 12 notes. In a typical performance, 560 notes are played every minute. How many seconds does it take to perform the entire Prelude? Express your answer read more ..

Guest Jul 21, 2022

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294

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geometry

The figure shows circle O with diameter AB and inscribed angle ABC with AB = 8 and BC = 4. When the area of the shaded region, in square units, is expressed in the form a + bπ, what is the value of ab?

read more ..

Guest Jul 21, 2022

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278

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Probability

Suppose we want to pick two numbers from {1,2,⋯,100} randomly. What is the probability that the sum of the two picked numbers is divisible by 4?

Guest Jul 21, 2022

-1

304

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1+1=?

Guest Jul 21, 2022

-1

313

2

+30

Suppose that a^2 varies inversely with b^3 If a=7 when b=3, find the value of a^2 when b=6

Suppose that a^2 varies inversely with b^3 If a=7 when b=3, find the value of a^2 when b=6

Gordn Jul 21, 2022

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214

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Algebra

Calculate sqrt(60x)*sqrt(12x)*sqrt(63x)*sqrt(42x). Express your answer in simplest radical form in terms of x. Note: When entering a square root with more than one character, you must use parentheses or brackets. For example, you should enter sqrt(14) as read more ..

Guest Jul 21, 2022

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332

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Please help super fast

For all real numbers $x$ such that $x^2<4$. Give your answer in interval notation.

calvinbun ●●

Guest Jul 21, 2022

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325

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Probability

We draw a card from a standard deck. What is the probability that it is a Jack, Queen, King, or red?

Guest Jul 21, 2022

+2

281

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+379

I need help.

A men's clothing store in the area is for sale. Buyers are trying to calculate the percentage of obsolete products. They will randomly select products from the store's 30,000 products to determine the rate of obsolescence. The current owner read more ..

calvinbun Jul 21, 2022

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287

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MUST HELP FASTTTT

PLS DO PART B ONLY AND FULL DESCRIPTION OF EVERYTHING
a) Compute $x+y$ and $\sqrt{x^2+y^2}$ when $x=5$ and $y=12.$ b) When is \[x+y=\sqrt{x^2+y^2}?\]When is \[x+y\neq\sqrt{x^2+y^2}?\] Your Resp

Guest Jul 21, 2022

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312

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help plz

https://web2.0calc.com/questions/trigonometry_6335

https://web2.0calc.com/questions/trigonometry_20584

Guest Jul 21, 2022

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