All Questions ⁺⁰238360 Questions

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511

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coordinates!

An archeologist found the remains of an ancient wheel,which she placed on a grid.If an arc of the wheel passes through A(-9,0),B(-3,4),and C(9,0),locate the center of the wheel,and the standard equation of the circle defining its boundary.

Guest Dec 4, 2020

0

685

2

+308

system of equations

For what ordered pair (a, b) are there infinite solutions (x, y) to the system
4x+ay=-8,
2x+y=b

ChattyChen ●●

notsmart2.0 Dec 4, 2020

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568

1

triangle

The figure below shows a triangle ABC which area is 72cm2. If AD: DB = BE: EC =CF: FA =1: 5, find the area of triangle DEF

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Guest Dec 4, 2020

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567

1

can anyone help

Triangle ABC has side lengths AB=17, AC=25, BC=28 and O is the incenter. What is BO?

Guest Dec 4, 2020

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644

3

geo question

Given a square with area A . A circle lies inside the square, such that the circle touches all sides of the square. Another square with area B lies inside the circle, such that all its vertices lie on the circle. Find the value of A/B. read more ..

Guest Dec 4, 2020

0

555

1

What is log(65!)

So i did some crazy stuff with placeholders like x, y a c and b and i got this
It's too hard to explain, and it's really long so don't even think about it.
I made it way too long so... Don't worry, We will figure this out in the future. read more ..

Guest Dec 4, 2020

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535

1

counting

In how many ways can we seat 6 people around a table if Al and Joe won't sit next to each other? (Two seatings are the same if one is a rotation of the other.)

Guest Dec 4, 2020

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675

1

Finding the area of a circle through hints

Compute the area of the circle that passes through all the intersection points of $4x^2 + 11y^2 = 29$ and $x^2 - 6y^2 = 6.$

Guest Dec 4, 2020

+1

602

1

+5

JUST WHAT IS THE ANSWER TO THIS

Cheryl has 5 ft of ribbon. She cuts a 3 3/4-ft strip to make a hair bow. Then she cuts a 5/6- ft strip for a border on a scrapbook page. Is there enough

LENEEDSHELP Dec 4, 2020

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789

6

trig question

SPQ is a straight line. We have sin RPQ = 7/20. What is sin RPS ?

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Guest Dec 4, 2020

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575

1

right triangle

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

Guest Dec 4, 2020

0

516

1

number theory

Suppose a and b are positive integers such that the units digit of a is 2, the units digit of b is 4, and the greatest common divisor of a and b is 8. What is the smallest possible value of the least common multiple of a and b?

Guest Dec 4, 2020

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638

1

the ratio of the sum of the exterior angles to the sum of these interior angles of polygons is 1:3

the ratio of the sum of the exterior angles to the sum of these interior angles of polygons is 1:3

Guest Dec 4, 2020

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737

3

need help asap

Lines AB and CD intersect at a point O in such a way that ∠DOB = 4∠COB. What is ∠AOD?

In 4ABC, AB = AC and ∠A = 72◦ . What is ∠B?
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Guest Dec 4, 2020

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983

2

What is -10x+2y=30 in slope-intercept form?

What is -10x+2y=30 in slope-intercept form?

Nacirema ●●

Guest Dec 4, 2020

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669

3

+1995

optimzation

May someone explain to me why i was incorrect

jjennylove Dec 4, 2020

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556

1

Becky

Becky read 10 books in 4 days. Sarah read 50 books in 20 days. Are the two girls reading at the same rate?

Guest Dec 4, 2020

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553

1

2-Step Mole Problems

1. How many molecules are in 43.2 g of sulfur dioxide?

2. If I had 1.23x1024 molecules of hydrochloric acid, how many grams of acid would I have?

Guest Dec 4, 2020

Dec 3, 2020

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1321

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Find a polynomial $q(x)$ such that $(x+1)^3+x^2\cdot q(x)$ has degree less than $2$.

Find a polynomial $q(x)$ such that $(x+1)^3+x^2\cdot q(x)$ has degree less than $2$.

Guest Dec 3, 2020

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363

1

TEST REVIEW HELP

Eric and Jaren go shopping and they both buy new shoes and hats. Eric buys 2 pairs of shoes and 3 hats and his bill is $175. Jaren buys 4 pairs of shoes and only 1 hat and his bill is $225.

What is the cost of one pair of shoes? What read more ..

Guest Dec 3, 2020

0

564

1

+315

help please on math

polyyou Dec 3, 2020

0

477

1

geometry question

If a central angle of 90 degrees defines an arc on circle R that has the same length as the arc on circle W defined by a 120-degree central angle, what is the ratio of the area of circle R to the area of circle W? Express your answer as a common fraction. read more ..

Guest Dec 3, 2020

0

556

1

Test Review PLZ HELP

Eric and Jaren go shopping and they both buy new shoes and hats. Eric buys 2 pairs of shoes and 3 hats and his bill is $175. Jaren buys 4 pairs of shoes and only 1 hat and his bill is $225. What is the cost of one pair of shoes? What is the cost of one read more ..

Guest Dec 3, 2020

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