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All Questions
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237635 Questions
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468
1
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.
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Guest
Dec 4, 2020
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647
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
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notsmart2.0
Dec 4, 2020
0
529
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
0
521
1
can anyone help
Triangle ABC has side lengths AB=17, AC=25, BC=28 and O is the incenter. What is BO?
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Guest
Dec 4, 2020
0
605
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.
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Guest
Dec 4, 2020
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508
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 ..
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Guest
Dec 4, 2020
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485
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.)
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Guest
Dec 4, 2020
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632
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 $x^2 - 6y^2 = 6.$
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Guest
Dec 4, 2020
+1
552
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
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LENEEDSHELP
Dec 4, 2020
0
748
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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528
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?
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Guest
Dec 4, 2020
0
460
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?
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Guest
Dec 4, 2020
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591
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
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Guest
Dec 4, 2020
0
700
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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942
2
What is -10x+2y=30 in slope-intercept form?
What is -10x+2y=30 in slope-intercept form?
Nacirema
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Guest
Dec 4, 2020
0
646
3
+1995
optimzation
May someone explain to me why i was incorrect
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jjennylove
Dec 4, 2020
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514
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?
Nacirema
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Guest
Dec 4, 2020
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499
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?
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Guest
Dec 4, 2020
Dec 3, 2020
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1279
1
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 $2$.
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Guest
Dec 3, 2020
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313
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
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Guest
Dec 3, 2020
0
528
1
+315
help please on math
compute
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polyyou
Dec 3, 2020
0
425
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.
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Guest
Dec 3, 2020
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507
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 ..
Nacirema
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Guest
Dec 3, 2020
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