All Questions ⁺⁰237680 Questions

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Algebra 2 question

A researcher observes and records the height of a weight moving up and down on the end of a spring. At the beginning of the observation the weight was at its highest point. From its resting position, it takes 20 seconds for the weight to reach its highest read more ..

hippobush2 Jul 26, 2021

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416

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Algebra

There are numbers A and B for which
A/(x - 1) + B/(x + 1) = (8x + 3)/(x^2 - 1)
for every number $x^2 \neq 1$. Find B.

Guest Jul 26, 2021

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421

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trig

In right triangle DEF, we have D = 25, E = 90, and EF = 93. Find DE to the nearest tenth. You may use a calculator for this problem.

Guest Jul 26, 2021

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430

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trig

In triangle GHI, we have GH = HI = 25 and GI = 48.

(a) What is sin GIH?
read more ..

Guest Jul 26, 2021

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506

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counting

There are 97 students in South High School. South High School offers only Chinese and Spanish. There are $6$ more students in Chinese than in Spanish, and every student takes at least one language. If $47$ students take only Spanish, then how many take read more ..

Guest Jul 26, 2021

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422

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Graphing Functions

the graph of y=f(x) is shown below, in red. Find the equation that corresponds to the blue graph.
Enter your answer in the form "y=..."

read more ..

Guest Jul 26, 2021

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help

I came across this question. Thus, I'm curious about how to solve it. Could someone help me out, please!

jleung Jul 26, 2021

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401

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+58

A question that I am stuck on and really need help.

Non-negative real numbers $a, b,$ and $c$ satisfy $$a^2+b^2+c^2+70=35ab+7ac+5bc.$$ The least possible value of $a^2+2b^2+3c^2$ can be expressed as $\frac{m}{n},$ where $m$ and $n$ are relatively prime positive integers. FInd $m+n.$

So read more ..

hellothere Jul 26, 2021

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452

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Algebra

What is the sum of all possible values of x such that 2x(x - 10) - x(x - 5) = -50?

Guest Jul 26, 2021

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409

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help coordinates

The points (0,4) and (1,8) lie on a circle whose center is on the x-axis. What is the radius of the circle?

Guest Jul 26, 2021

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437

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help coordinates

The circle centered at (2,-1) and with radius 4 intersects the circle centered at (2,8) and with radius sqrt(14) at two points A and B. Find AB^2.

Guest Jul 26, 2021

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485

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+80

HELP PLS

jleung Jul 26, 2021

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498

1

+80

HELP PLS

jleung Jul 26, 2021

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278

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Precalculus Help!

Precalculus question. Help!

Guest Jul 26, 2021

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251

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please help!

Guest Jul 26, 2021

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426

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Please help!

How could I find the equation of the tangent line to the curve with equation y=(x^2-3)^5 at the point (2,1)?

Guest Jul 26, 2021

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313

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Trig

In right triangle ABC, we have AB = 10, BC = 20, and angle ABC = 90. If M is on AC such that BM is a median of triangle ABC, then what is cos ABM?

Guest Jul 26, 2021

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421

1

Counting

How many ways are there to put 5 balls in 2 boxes if the balls are distinguishable and the boxes are distinguishable?

Guest Jul 26, 2021

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291

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Help

Guest Jul 26, 2021

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421

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Coordinates

Find the radius of the circle with equation 9x^2 - 18x + 9y^2 + 36y + 88 = 0.

Guest Jul 26, 2021

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443

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Coordinates

The lines y = 2x and y = 8/3*x are drawn in the coordinate plane. Find the slope of the line that bisects the acute angle between these lines.

Guest Jul 26, 2021

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284

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Help probability

A bag contains 9 hazelnuts, 10 almonds, and 5 walnuts. If 6 are drawn at random, what is the probability of exactly 2 walnuts? thank you.

Guest Jul 26, 2021

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481

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Algebra

Find all pairs of real numbers such that x + y = 10 and x^2 + y^2 = 56 - 2xy.
For example, to enter the solutions and , you would enter "(2,4),(-3,9)" (without the quotation marks).

Guest Jul 26, 2021

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