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Post New Question
All Questions
+0
233097 Questions
+1
351
1
Rhombus
The diagonals of a rhombus measure 18 feet and 12 feet. What is the area of the rhombus?
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Guest
Apr 2, 2021
0
468
1
+132
help!
Let a, b, c be the roots of the cubic polynomial x^3 - x - 1 = 0. Find a(b - c)^2 + b(c - a)^2 + c(a - b)^2.
thank you!
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macar0ni
Apr 2, 2021
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367
1
Percent
A 6-inch-by-10-inch rectangle is cut down to a 5-inch-by-9-inch rectangle. What is the percent of decrease in the area? Express your answer as a mixed number percent.
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Guest
Apr 2, 2021
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366
1
decimals
Write 12345678*10^{-10} as a decimal.
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Guest
Apr 2, 2021
+1
303
2
help plz
The complex numbers and satisfy and
(a) Prove that and
(b) Prove that is a real number.
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Guest
Apr 2, 2021
+1
281
1
Math
There are seven numbers in this list: 0.123, 0.123, 0.112233, 0.13, 0.0123, 0.1223, 0.10203. Ashley rewrites the seven numbers in order from least to greatest, then circles the second and sixth numbers in this ordering. What is the sum of the two numbers
read more ..
RiemannIntegralzzz
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Guest
Apr 2, 2021
+1
402
3
Algebra
These are the fees for sending a package by Media Mail: 2.41 for the first pound, 0.41 per additional pound for the next six pounds 0.39 per additional pound after that. For example, a two-pound package costs 2.82 to send by Media Mail. If a package full
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RiemannIntegralzzz
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Guest
Apr 2, 2021
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384
1
All the entries of the matrix
All the entries of the matrix
and its inverse are integers. Find all possible values of c.
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Guest
Apr 2, 2021
+1
814
10
+132
please helpp
At Pizza Perfect, Ron and Harold make pizza crusts. When they work separately Ron finishes the job of making 100 crusts 1.2 hours before Harold finishes the same job. When they work together they finish making 100 crusts in 1.8 hours. How many hours, to
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macar0ni
Apr 2, 2021
0
450
1
Rounding
Annie rounds 280.05 to the nearest hundred.Bobby rounds 280.05 to the nearest ten.Ciro rounds 280.05 to the nearest integer.Denise rounds 280.05 to the nearest tenth. Enid rounds 280.05 to the nearest hundredth. What is the sum of Annie's answer,
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RiemannIntegralzzz
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Guest
Apr 2, 2021
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418
2
+486
Double/Half Angle Identities (Trigonometry)
An angle $x$ is chosen at random from the interval $0^{\circ} < x < 90^{\circ}$. Let $p$ be the probability that the numbers $sin^2(x)$, $cos^2(x)$, and $sin(x)*cos(x)$ are NOT the lenghts of the sides of the sides of a triangle. Given that $p=\frac{d}{n}$,
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RiemannIntegralzzz
Apr 2, 2021
0
438
3
geometry
In the figure below, ABCD is a parallelogram, AD = 18 and DC = 27. Segments EG and FH are perpendicular to sides of the parallelogram as shown, and EG = 18. Determine FH.
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civonamzuk
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Guest
Apr 2, 2021
0
416
1
Please help
Five people can mow a lawn in 12 hours. How many more people are needed to mow the lawn in just 3 hours, assuming each person mows at the same rate?
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Guest
Apr 2, 2021
0
446
1
Matrices
Given
find the inverse of AB.
Thanks!
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Guest
Apr 2, 2021
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393
1
Pls help
The base 5 number is divisible by 31. What is the digit ?
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Guest
Apr 2, 2021
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371
1
number theory
N is a four-digit positive integer. Dividing N by 9 , the remainder is 5. Dividing N by 7, the remainder is 2. Dividing N by 5, the remainder is 1. What is the smallest possible value of
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Guest
Apr 2, 2021
0
369
0
+138
Idk even know what this problem is or wants or how to do it lmao
Any help?
SpaceTsunaml
Apr 2, 2021
0
369
1
number theory
N is a positive integer. When N is divided by 3, the remainder is 2. When N is divided by 4, the remainder is 1. What is the remainder when N is divided by 12?
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Guest
Apr 2, 2021
0
349
1
circles
Find the vaue of x. Enter the numeric value only. Round your answer to the nearest hundredth.
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Guest
Apr 2, 2021
0
334
1
geometry
For the triangles above, what is the measure of M?
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Guest
Apr 2, 2021
0
420
2
polynomial
Let f(x) = x^4-3x^2 + 2 and g(x) = 2x^5 - 6x^2 + 2x -1. Let b be a constant. What is the smallest possible degree of the polynomial f(x) + b* g(x)?
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Guest
Apr 2, 2021
0
1225
2
in surd form what is 2 to the power of 5/2
in surd form what is 2 to the power of 5/2
RiemannIntegralzzz
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Guest
Apr 2, 2021
+1
573
1
+56
Geometry
In the circle above, the measure of angle DHG can be represented by 7x - 7, and the measure of arc DG can be represented by 9x + 21. The measure of arc DG is ___ degrees.
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lel12
Apr 2, 2021
+1
667
1
+9
The area of a sector of a circle of diameter 126cm is 4158cm 2 .calculate the angle subtended at the centre of the circle.(pie 22 /7)
The area of a sector of a circle of diameter 126cm is 4158cm2.calculate the angle subtended at the centre of the circle.(pie 22/7)
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papela254
Apr 2, 2021
0
503
2
+138
How do I do part B and C?
I can do / did part a easily, but not sure how to do b or c. Any help? Thank you!
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SpaceTsunaml
Apr 2, 2021
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