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All Questions
+0
230469 Questions
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1072
1
Help me please! I’m More concerned with the steps
1. Manu determines the roots of a polynomial equation by applying the theorems he knows. He organizes the results of these theorems. From the fundamental theorem of algebra, Manu knows there are 3 roots to the equation. From Descartes’ rule of sign, Manu
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Guest
Nov 29, 2019
-1
757
1
+71
Help pretty please (Happy Black Friday)
Use Trigonometric identities to simplify Trigonometric Expressions.
1.
2.
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Mathrules
Nov 29, 2019
0
476
1
Help
How many odd factors does 2200 have?
also
what is the smallest odd integer with exactly 9 factors
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Guest
Nov 29, 2019
0
988
2
What is the smallest positive integer n such that, out of the n unit fractions 1/k where 1<=k<=n, exactly half of the fractions give a
What is the smallest positive integer n such that, out of the n unit fractions 1/k where 1<=k<=n, exactly half of the fractions give a terminating decimal?
<= means less than or equal to
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Guest
Nov 29, 2019
0
575
1
All 6-digit integers
Of all 6-digit integers, how many have the property that the sum of the first 3 digits is equal to the sum of the last 3 digits and that are multiples of 10,007? Thank you for help.
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Guest
Nov 29, 2019
0
668
2
help
Solve x^4 - 2x^3 - 15x^2 >= 0. Show all your steps!
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Guest
Nov 29, 2019
0
415
1
help
Of the staff in an office, 15 rode a pushbike to work on Monday, 12 rode on Tuesday and 9 rode on Wednesday. If 22 staff rode a pushbike to work at least once during these three days, what is the maximum number of staff who could have ridden a pushbike
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Guest
Nov 29, 2019
0
1983
2
HELP ME PLEASE THANK YOU
The nine points of this grid are equally spaced horizontally and vertically. The distance between two neighboring points is 1 unit. What is the area, in square units, of the region where the two triangles overlap?
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Guest
Nov 29, 2019
0
350
0
help
Six scouts are on a scouting expedition. They are going to the woods on Saturday, and into the mountains on Sunday. On both days, they have to go in pairs. The scoutmaster wants to group them into pairs for both expeditions in such a way that nobody has
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Guest
Nov 29, 2019
0
872
1
help
Jay owns a fleet of 24 shiny cars.
Each car has either standard transmission or automatic transmission
Each car is either black, white, or red
Each car is either a Toyota, Mercedes-Benz, Chevrolet, or Pinto
No two cars are the same for each
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Guest
Nov 29, 2019
0
665
1
help
A number x satisfies x = 1/(1 + x). Determine x - 1/x.
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Guest
Nov 29, 2019
0
802
1
+101
conics question
Let F_1 = ( -3, 1 - sqrt(5)/4) and F_ 2= ( -3, 1 + sqrt(5)/4). Then the set of points P$ such that |PF_1 - PF_2| = 1 form a hyperbola. The equation of this hyperbola can be written as ((y - k)^2)/(a^2) - ((x - h)^2)/(b^2) = 1,\]where
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chclt363
Nov 29, 2019
0
772
2
+38
Stuck on problem
Find a formula for the exponential function passing through the points (-1,2/3) and (1,6) Help much apprieciated can't figure this one out.
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evanborot
Nov 29, 2019
0
2499
4
help
All six faces of a cube are painted blue. The cube is then cut into 125 smaller cubes, all the same size. One of the small cubes is chosen at random, and rolled. What is the probability that when it lands, the face on the top is blue?
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Guest
Nov 29, 2019
Nov 28, 2019
-1
926
1
+143
Roots Problem
Babette is thinking of a monic quadratic polynomial with real coefficients. She tells you that when she squares the roots of her quadratic, to form another monic quadratic, surprisingly, it is the same as the original. How many different quadratic polynomials
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AoPS.Morrisville
Nov 28, 2019
0
660
2
help
The first two positive integers n for which 1 + 2 + ... + n is a perfect square are 1 and 8. What are the next two?
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Guest
Nov 28, 2019
0
878
0
+1993
A lunar lander
A lunar lander in powered descent at 100 m above the surface of the moon slows down from a velocity of 20 m/s to 0.5 m/s at constant acceleration. I have to assume that the lander has a mass of 20,000 kg and that burning the fuel does not change the mass.
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jjennylove
Nov 28, 2019
0
711
1
+312
MATHCOUNTS II
The same amount of steel used to create eight solid steel balls, each with a radius of 1 inch, is used to create one larger steel ball. What is the radius of the ball?
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mathleteig
Nov 28, 2019
+1
592
1
+5
Graph of a circle
Find the radius of the circle with equation 9x^2-18x+9y^2+36y+44=0.
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explosivecow
Nov 28, 2019
0
1152
5
help
What is the remainder when x^3 + x^6 + x^9 + x^27 is divided by x^2 - 1?
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Guest
Nov 28, 2019
+1
693
1
I'm stuck help
Solve the equation 9^(5-x)=1/(sqrt(15^(4x)). Express your answer in terms of ln3 and ln5.
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Guest
Nov 28, 2019
0
1168
2
what is the center of a graph called?
what is the center of a graph called?
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Guest
Nov 28, 2019
0
445
1
Help me plzzz
NM is the median of trapezoid ABCD. If area of NMCD equals 2 times area of ABMN, what is CD/AB?
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Guest
Nov 28, 2019
0
660
2
help
Two circles of radius 1 overlap so that the center of each lies on the circumference of the other. What is the area of their union?
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Guest
Nov 28, 2019
0
410
1
help me plz
Points A, B, C, and D are in space such that each of TA, TB, and TC is perpendicular to the other two. If TA=TB=12 and TC=6, then what is the distance from T to face ABC?
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Guest
Nov 28, 2019
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