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All Questions
^{+0}
188479 Questions
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44
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+64
Not a question, just a useful formula
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pizzaisawesome972
Feb 22, 2021
0
31
2
+64
In a certain ellipse, the endpoints of the major axis are $(-11,4)$ and $(9,4).$ Also, the ellipse passes through the point $(7,7).$ Find th
In a certain ellipse, the endpoints of the major axis are (-11,4) and (9,4). Also, the ellipse passes through the point (7,7). Find the area of the ellipse.
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pizzaisawesome972
Feb 22, 2021
0
21
1
+38
Composite polynomials
Hello all,
I have a question: what is a composite polynomial? I tried searching this up but the results aren't very clear to me and I don't understand them well. Could someone explain this to me and perhaps show it with an example?
read more ..
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grs75
Feb 22, 2021
0
36
3
system
Solve the system of equations:
3a+b+c+d+e+f=43
a+3b+c+d+e+f=51
a+b+3c+d+e+f=67
a+b+c+3d+e+f=32
a+b+c+d+3e+f=81 <#> a+b+c+d+e+3f=52
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Guest
Feb 22, 2021
0
36
2
+434
plz help! im confused
https://web2.0calc.com/questions/probability-plz-explain
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xxJenny1213xx
Feb 22, 2021
0
43
0
+28
The ellipse x^2 / 49 + y^2 / b^2 = 1 has foci at (5, 0) and (−5, 0).
The ellipse x^2 / 49 + y^2 / b^2 = 1 has foci at (5, 0) and (−5, 0).
(a) Find the length of the semi-major axis of this ellipse.
(b) Compute the value of b.
juananother
Feb 22, 2021
0
40
0
+28
Hyperbola
The hyperbola
((y − 3)^2 / 5) − ((x − 2)^2 / 16) = 1
intersects the line x = 8 at (8, y1) and (8, y2). Find y1 + y2.
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juananother
Feb 22, 2021
0
31
1
find X @CPHILL!!! help mee or anyone
pls help ASAP
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Guest
Feb 22, 2021
0
24
1
undefined
For what real values of a is the expression (a + 3)/((a^2 - 4)(a + 3)) undefined? List your answers in increasing order separated by commas.
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Guest
Feb 22, 2021
0
24
1
help asap now!!!
Suppose that there is only one value of x for which the distance from (5,6) to (3x-7,ax+2) is 4. If a≠0 what is a?
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Guest
Feb 22, 2021
0
25
1
reading books
Izzy can read 12 books in 24 hours. Bachukas can read 8 books in 36 hours. Fantasy Lover can read one book in 36240 hours. If they all read nonstop for one year(with 365 days) how many books in total will they read?
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Guest
Feb 22, 2021
0
21
1
digits
Sally is thinking of a number. The product of the digits is one half of the number. What is the smallest positive, two-digit integer she could be thinking of?
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Guest
Feb 22, 2021
0
23
1
average speed
You go for a bike ride. You ride your bike straight at 10 miles-per-hour for 90 minutes.You then turn around to travel back to your original starting point. If it takes you 2 hours to get back, what was your average speed on your way back?
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Guest
Feb 22, 2021
0
27
6
helpppp vip
A straight tunnel is 80 long and slopes downwards at an angle of 11 to teh horizontal find the vertical drop in travelling from the top to the bottom of the tunnel.
with working plz
thx in advance
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Guest
Feb 22, 2021
0
26
1
geometric series
An infinite geometric series has a common ratio 1/5 and sum 16. What is the first term of the series?
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Guest
Feb 22, 2021
0
25
1
Evaluate the continued fraction [1,2,3,1,4,1,4,1,4...]
Evaluate the continued fraction [1,2,3,1,4,1,4,1,4...]
I'm not sure how to do this any help would be great.
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Guest
Feb 22, 2021
0
24
1
help with algebra
If Judy rows at the rate of 7 mph against the current, and 11mph with the current, what is the average speed of her trip if she goes the same distance in both directions?
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Guest
Feb 22, 2021
0
22
1
Help geometry
The length of median AM of isosceles triangle ABC (AC=BC) is equal to the length of base AB. Find the ratio of AC/AB
Thank you :)
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Guest
Feb 22, 2021
0
19
1
help number theory
What is the smallest positive integer such that when divided by 3 leaves a remainder of 1, when divided by 4 leaves a remainder of 2, and when divided by 5 leaves a remainder of 1?
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Guest
Feb 22, 2021
0
34
2
+434
probability plz explain!!
1.Thuy delivers 6 letters to 6 houses.what is the probability she delivers them all incorrectly?
2. when flipping a fair coin, what is the probability four heads appear?
3. five boys and five girls sit around a circular table. what is the
read more ..
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xxJenny1213xx
Feb 22, 2021
+1
26
1
+73
Geometry
The lengths of two sides of ABC are 15 and 20, and the triangle area is 150. What is the perimeter of ABC?
Thank you :)
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HelpPls123abc
Feb 22, 2021
0
29
2
how much stuff can you stuff in a stuffy till a stuffy is stuffed enough stuff
ik the answer i just wanna see
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Guest
Feb 22, 2021
-1
26
1
+39
number sequence math question, PLSSS HELPPP>>>ITS URGENT
1. Given the first term, f(1) = 3 and the common difference of 5, find the first 5 terms.
A. 3, 8, 13, 20, 27
B. 3, -2, -7, -12, -17
C. 3, 15, 75, 375, 1875
read more ..
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winner08
Feb 22, 2021
0
23
1
series
Find the sum of the first five terms of 2/3 + 8/9 + 26/27 + ...
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Guest
Feb 22, 2021
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