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199352 Questions
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Please help
Diagonals AC and BD of a regular pentagon ABCDE intersect at H. Decide whether or not AHDE is a rhombus, and give your reasons.
Guest
2
mins ago
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3
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Please answer this question
A stick has a length of $5$ units. The stick is then broken at two points, chosen at random. What is the probability that all three resulting pieces are shorter than $2$ units?
(All other answers to this question were wrong)
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Guest
21
mins ago
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2
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help with quadratic
The line x = k intersects the graph of the parabola x = -2y^2 - 8y + 5 at exactly one point. What is k?
Guest
43
mins ago
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8
3
help asap.
In triangle ABC the angle bisectors are AD BE and CF, which intersect at the incenter I. If Angle ACB = 38 degrees then find the measure of AIE in degrees.
I am stuck on this problem and I
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Guest
50
mins ago
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3
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number theory
What is the largest integer n such that 3^n is a factor of 1 * 3 * 5 * ... * 97 * 99 * 101 * 103 * ... * 197 * 199?
Guest
1 hour ago
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3
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probability question
a is chosen from the set {1,2,3,4,5}, and b is chosen from the set {5,6,7,8,9}. What is the probability that the product ab is a prime number?
Guest
2 hours ago
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7
0
Algebraically determine the EXACT solutions for 2x 2 −7.9x≤3 using roots and test points.
Algebraically determine the EXACT solutions for 2x2−7.9x≤3 using roots and test points.
Guest
2 hours ago
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8
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Inequality word problem please help thank youuu!
Nina takes her friends to an ice cream store. A milkshake costs $3 and a chocolate sundae costs $2.50. Nina has $18 in her purse.
Let m = milkshake
Let c = chocolate sundae
a) Write an inequality to describe
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Guest
3 hours ago
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3
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help number theory
What is the smallest positive n such that n/(2010*7*11) is a terminating decimal?
Guest
3 hours ago
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7
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I think they should start a restaurant. What do you think? Please help.
Sydnei and Braydon are friends that want to start a business together. Sydnei wants them to start a photography business that, after paying a one time fee of $10,000 for equipment and training, would earn them $30,000-$60,000 a year depending on demand.
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Guest
3 hours ago
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3
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geometry
Quadrilateral PQRS is a trapezoid with bases PQ and RS. The median MN meets the diagonals PQ and RS at X and Y, respectively. If SR=20 and XY=5, find PQ.
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Guest
3 hours ago
0
8
1
Mixture Problem. Forgot How To Do Problems Like These. Please Help!
A mixture containing 4% saline solution is to be mixed with 2 quarts of a mixture which is 10% saline to obtain a solution which is 8% saline. How much of the 4% solution must be used?
Btw: No need to give me step by step. I only need
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Guest
3 hours ago
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5
1
geometry
A triangle whose side lengths are whole numbers has one side which measures 25 inches and a perimeter of $100$ inches. What is the fewest number of inches that can be the length of one of the remaining sides?
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Guest
4 hours ago
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6
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Counting
in how many different ways can 4 students stand in a straight line if two of the students want to stand next to each other?
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Guest
4 hours ago
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3
0
System
Find an ordered pair that solves the system:
2x - 3y = -3.2 - 0.2x + 0.1y,
x = 0.6x - y
Guest
5 hours ago
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16
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+509
Can't seem to figure this.. (Algebra)
f(x) be a polynomial of degree atmost 7 which leaves remainder -1 and 1 on division by and respectively. If the sum of pairwise product of all roots of is n then the value of (5n + 24) is
P.S. final
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amygdaleon305
Jul 28, 2021, 5:14:38 AM
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12
1
Evaluate the following expression. Round the solution to the nearest tenth if necessary. e−2 =
Evaluate the following expression. Round the solution to the nearest tenth if necessary. Incorrect feedback has been removed from the screen. e−2 =
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Guest
Jul 28, 2021, 4:17:36 AM
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9
1
Inverse Functions
Let f(x) = 3x + 4 and g(x) = 2x + 8. If h(x) = f(g(x)) , then what is the inverse of h(x)?
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Guest
Jul 28, 2021, 4:08:44 AM
+1
9
2
number theory
There exist several positive integers x such that 1/(x^2 + 2x) is a terminating decimal. What is the second smallest such integer?
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Guest
Jul 28, 2021, 4:08:15 AM
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10
1
help math
All triangles have the same value, and all circles have the same value. What is the sum of two circles?
$\Delta + \bigcirc + \Delta + \bigcirc + \Delta + \bigcirc + \Delta = 21$
$\bigcirc + \Delta+\bigcirc+\Delta+\bigcirc
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Guest
Jul 28, 2021, 3:58:18 AM
-1
12
1
the game set
In the card game Set, each card features a number of shapes, with four attributes:
Number: The number of shapes is 1, 2, or 3.
Color: Each shape is red, purple, or green.
Shape: Each shape is oval, diamond, or squiggle.
Shading: Each shape
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Guest
Jul 28, 2021, 3:10:07 AM
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