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Post New Question
All Questions
+0
234777 Questions
+2
431
1
+108
HALP
The roots of x^3-6x*^2-13x-k=0 form an artithmetic sequence.
a) What is the median term of the arithmetic sequence
b) Find the value of k
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whatdoiputhere
Feb 17, 2021
+1
477
1
+108
HEELP
Find all integers for a for which the polynomial ax^2-8x+3=0 has an integer root.
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whatdoiputhere
Feb 17, 2021
+1
537
1
+108
The sum of the first n positive even integers is 12432. compute the value of n.
The sum of the first n positive even integers is 12432. compute the value of n.
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whatdoiputhere
Feb 17, 2021
+1
569
1
+108
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) Fimd the length of a semi major axis of this ellipse
(b)compute the value of b
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whatdoiputhere
Feb 17, 2021
+2
395
1
+108
HELP ASAPPPPP.
The hyperbola (y-3)^2/5 -(x-2)^2/16=1 (the equation is in x^2/a^2-y^2/b^2=1
Intersects the line at x=8 at (8,y1) and (8,y2) find y1+y2
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whatdoiputhere
Feb 17, 2021
+2
648
1
+108
HeLp!
find the sum of the infinite geometric series with the first term 2 and the common ratio 3/5.
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whatdoiputhere
Feb 17, 2021
+2
270
1
HELP ASAP PLEASE
find a monic polynomial of lowest possible degree with rational coefficeients and having both 2 and 3-i roots.
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Guest
Feb 17, 2021
+3
452
2
HELP!
The graphs of x^2-2x+y^2+10y=0. Find the radius of this circle.
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Guest
Feb 17, 2021
+2
424
1
HELP ASAP!
Let a and b be the roots of 2x^2+7x+11=0. Find ab+a+b
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Guest
Feb 17, 2021
0
659
2
A plane flies from Penthaven to Jackson and then back to Penthaven. When there is no wind, the round trip takes hours and minutes, but
A plane flies from Penthaven to Jackson and then back to Penthaven. When there is no wind, the round trip takes hours and minutes, but when there is a wind blowing from Penthaven to Jackson at miles per hour, the trip takes hours
read more ..
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Guest
Feb 17, 2021
0
363
1
help with system
One week Tony bought 6 soft shell tacos and 2 hard shell tacos for 12 dollars. The next week he bought 3 soft shell tacos and 1 hard shells tacos for 6 dollars. Write a system to find the cost for each type of taco. Explain your answer.
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Guest
Feb 17, 2021
0
504
1
probability
Each of the digits 0-9 is written on a slip of paper, and the slips are placed in a hat. If 5 slips of paper are selected at random, determine the probability that the 5 numbers selected are greater than 3.
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Guest
Feb 17, 2021
0
650
1
binomial theorem
Find the coefficient of u^2 in expansion of (2u - 1)^5 using binomial theorem.
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Guest
Feb 17, 2021
0
430
2
Can somebody help me? please?
Can somebody help me? please?
A medicine capsule cost 50.25. If a doctor asks you to drink three capsules a day for 7 days,
how much will it cost you to buy all the medicine needed for 1 week?
read more ..
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Guest
Feb 17, 2021
0
261
0
polynomial roots
Find all roots given that x = 3 + i is a solution.
x^4 - 10x^3 + 29x^2 - 10x - 50 = 0
Guest
Feb 17, 2021
0
481
3
+206
domain
Find the domain of the function $\frac{x^4-4x^3+6x^2-4x+1}{x^2-4}$.
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oliviapow06
Feb 17, 2021
0
285
0
geometry proof
I need help, I'm really bad with proofs.
ABC is a triangle right angled at C . A line through the mid point M of hypotenuse AB and parallel BC intersects AC at D . show that
i) D is the mid point of AC
ii)MD parallel to
read more ..
Guest
Feb 17, 2021
+1
308
1
+501
Domain
The domain of the function $h(x) = \sqrt{25-x^2}+\sqrt{-(x-2)}$ is an interval of what width?
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ellapow
Feb 17, 2021
-1
308
0
+1678
3d cone
A sector of 144 degrees is removed from a circle of radius 15, and the remaining portion is folded into a cone. What is the angle at the vertex of the cone?
wiseowl
Feb 17, 2021
0
377
1
Find the value of x
Find the value of x.
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Guest
Feb 17, 2021
0
303
1
+206
Piecewise-Defined Functions
If
\[f(x) =
\begin{cases}
x^2-4 &\quad \text{if } x \ge -4, \\
x + 3 &\quad \text{otherwise},
\end{cases} <#> \]
then for how many values of $x$ is $f(f(x)) = 5$?
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oliviapow06
Feb 17, 2021
+1
444
1
+501
Rational Expressions of Polynomials
What is the sum of all values of $y$ for which the expression $\frac{y+6}{y^2-5y+4}$ is undefined?
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ellapow
Feb 17, 2021
+1
471
2
+147
Graphing Functions
When graphing the equation $y = \frac{x + A}{Bx + C}$, where $A,B,$ and $C$ are integers, what is $A + B + C$?
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powclaire
Feb 17, 2021
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