All Questions

423

Coordinates

Circles with centers of (2,2) and (17,12) are both tangent to the x-axis. What is the distance between the closest points of the two circles?

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Guest Dec 2, 2021

326

what is the y-intercept formula

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Guest Dec 2, 2021

243

Please

reduce this (1/(a+b))-(1/(a-b))

Guest Dec 2, 2021

253

Conic sections

Find the distance between the foci of the hyperbola x^2/50 - y^2/22 = 1.

Guest Dec 2, 2021

325

Probability

If I choose four cards from a standard 52-card deck,with replacement, what is the probability that I will end up with all four Aces?

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Guest Dec 2, 2021

321

trig question

In right triangle ABC with B = 90 , we have sin A = 2 cos A. What is sin A?

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Guest Dec 2, 2021

317

geomety question

Let ABCD be a square with side length 2. There is a point E on segment AD such that BE is tangent to the semicircle with diameter CD. Compute the length of BE.

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Guest Dec 2, 2021

437

Circular Dart Board Area/Probability??

A circular dartboard, with an outside radius of 12" is shown at the right. Each ring has the same width. Find the ratio of the total shaded area to the total unshaded area. Express your answer as a reduced fraction. (Leave π in your area answers.) read more ..

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Guest Dec 2, 2021

251

confused bout this problem. Provide an explanation too, since I want to understand

An ellipse and a hyperbola have the same foci, A and B, and intersect at four points. The ellipse has major axis 50, and minor axis 40. The equation of the hyperbola is of the form

x^2/a^2 - y^2/10^2 = 1

Let P be read more ..

Guest Dec 2, 2021

+26

451

+1307

Algebraic Equation

Solve for x:

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dolphinia Dec 2, 2021

242

Simplifying Expressions

Assuming that x is not -3, simplify

Any help would be much appreciated. Thanks!

Guest Dec 2, 2021

Dec 1, 2021

264

Coordinates

The lines -2x + y = k and 5x + y = 14 intersect when x = 84. What is the value of k?

Guest Dec 1, 2021

265

Let 𝑓(𝑥)=sin𝑥 Find the 𝑓 5 (4.8) .

Let 𝑓(𝑥)=sin𝑥 Find the 𝑓5(4.8) .

Guest Dec 1, 2021

242

Algebra

If g(x) = (x + 3)/4, for what value of x will g(2x) = 2(g(x)) ? Express your answer in simplest form.

Guest Dec 1, 2021

489

Henry made 6 identical necklaces, each having beads and a pendant. The total cost of the beads and pendants for all 6 necklaces was

Henry made 6 identical necklaces, each having beads and a pendant. The total cost of the beads and pendants for all 6 necklaces was $31.80. If the beads cost a total of $14.40, how much did each pendant cost?

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Guest Dec 1, 2021

533

please help, thank you! (pre-calc)

Consider the graph of r= theta for theta > 0 given in radians, also known as the Archimedean spiral. Prove that the intersections of this graph with any ray whose initial point is the origin are equidistant from each other. What is that distance?
Here's read more ..

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Guest Dec 1, 2021

+14

439

+483

Algebra Problem

Let and be real numbers such that
Find the sum of all possible values of .

Any help would be appreciated!

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abcdefghijklmnopqrst Dec 1, 2021

286

System

Find the ordered triplet (x,y,z) for the following system of equations:
x + 3y + 2z = 1
-3x - y + 5z = 10
-2x - 3y + 2z = 7 read more ..

Guest Dec 1, 2021

450

+2499

How do I solve this one?

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Solveit Dec 1, 2021

312

Number Theory

What is the ones digit of 1^2009 + 2^2009 + 3^2009 + ... + 100^2009?

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Guest Dec 1, 2021

305

Number Theory

There is a number formed by n copies of 2020 and 1 in the unit place. If this number is divisible by 17, what is the smallest possible value of n?

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Guest Dec 1, 2021

282

Number Theory

Determine the sum of all prime numbers p for which there exists no integer solution in x to the congruence
3(6x+1) + 12x = 4 mod(p).

Guest Dec 1, 2021

-1

429

+218

Please provide me an explanation in the original thread.

Friends, some nice people on this forum answered my questions, however did not provide an explaination. Could someone please help me, but make sure to reply on the original thread?

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MathyGoo13 Dec 1, 2021

296

Number Theory

What is the least positive integer n such that 1560 divides n^2?

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Guest Dec 1, 2021

All Questions ⁺⁰237665 Questions

Coordinates

what is the y-intercept formula

Please

Conic sections

Probability

trig question

geomety question

Circular Dart Board Area/Probability??

confused bout this problem. Provide an explanation too, since I want to understand

Algebraic Equation

Simplifying Expressions

Coordinates

Let 𝑓(𝑥)=sin𝑥 Find the 𝑓 5 (4.8) .

Algebra

Henry made 6 identical necklaces, each having beads and a pendant. The total cost of the beads and pendants for all 6 necklaces was

please help, thank you! (pre-calc)

Algebra Problem

System

How do I solve this one?

Number Theory

Number Theory

Number Theory

Please provide me an explanation in the original thread.

Number Theory

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