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Post New Question
All Questions
+0
229743 Questions
0
712
1
Three Alg 2 Questions
What is the degree form for 4π5 radians?
°____
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Guest
Jan 11, 2018
+1
696
1
Probability of A is 0.8. If A happens, the probability of B is 0.5. What is the probability of both A and B being true?
A: 0.8
B (only if A is true): 0.5
Is it just simple A*B? Or do I have to do 0.8(0.5*0.8)? thanks
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Guest
Jan 11, 2018
+1
736
1
science
When methane burns, it combines with oxygen to form carbon dioxide and water. This reaction releases energy. The balanced chemical equation representing this process is shown.
Which statement about this process is true?
off-topic
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Guest
Jan 11, 2018
0
742
2
Test Prep Help - Trigonometry
An observer in a lighthouse 350 feet above sea level observes two ships directly offshore. The angles of depression to the ships are β = 2° and θ = 5.5° (see figure). How far apart are the ships? (Round your answer
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Guest
Jan 11, 2018
0
668
1
+4116
Help.
Help.
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NotSoSmart
Jan 11, 2018
0
746
4
sin -1?
How do i use sin -1
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Guest
Jan 11, 2018
0
693
3
please help me URGENT!!
A pair of consecutive integers has the property that 8 times the lesser is more than 4 times the greater.
Find the least pair of integers with this property.
what I did was:
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ElectricPavlov
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Guest
Jan 11, 2018
0
743
3
Adding and subtracting rational expressions
a - 3b + a + 5b
a + b a + b
hectictar
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Guest
Jan 11, 2018
+2
992
1
+488
How many of the 343 smallest positive integers written in base 7 use 4 or 5 (or both) as a digit?
How many of the 343 smallest positive integers written in base 7 use 4 or 5 (or both) as a digit?
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RektTheNoob
Jan 11, 2018
0
863
2
+284
If you have the element Boron (B) with a mass number of 10, 5 protons, 5 neutrons and 6 electrons, what would be the isotope/ion symbol? *
If you have the element Boron (B) with a mass number of 10, 5 protons, 5 neutrons and 6 electrons, what would be the isotope/ion symbol? *
5B
5B-1
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sii1lver
Jan 11, 2018
0
796
3
Can someone help me I do not understand the question
Simplify \[i^1+i^2+i^3+\cdots+ i^{97} + i^{98}+i^{99}.\]
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Guest
Jan 11, 2018
0
1615
1
Help
There are 5 quadratics below. Four of them have two distinct roots each. The other has only one distinct root; find the value of that root.
\begin{align*} &4x^2 +16x - 9\\ &2x^2 + 80x + 400\\ &x^2 - 6x - 9\\ &4x^2 - 12x + 9\\ &{-x^2
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Guest
Jan 11, 2018
0
847
2
Nora and Ryan
Nora and Ryan are making stuffed animals for a toy drive. The table shows the fabric purchases they made. Who purchased the more expensive fabric? Explain your reasoning.
Someone help please
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Guest
Jan 11, 2018
0
708
1
geom. question
please help me with this problem!! thank you:
Draw triangle ABC and let D be the midpoint of AB. Let E be the midpoint of CD. Let F be the intersection of AE and BC. Draw DG parallel to EF meeting BC at G. Prove that BG = GF = FC.
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Guest
Jan 11, 2018
0
2297
1
Hep
Simplify the expression \[\frac{1}{\sqrt{2}} +\frac{3}{\sqrt{8}} + \frac{6}{\sqrt{32}}.\]
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Guest
Jan 11, 2018
-1
2544
1
+912
Simplify. (3x2−2x+2)−(x2+5x−5)
Simplify.
(3x2−2x+2)−(x2+5x−5)
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AngelRay
Jan 11, 2018
-1
1369
1
+912
Simplify. (4x−3+2x2)+(2x+1)
Simplify.
(4x−3+2x2)+(2x+1)
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AngelRay
Jan 11, 2018
-1
3141
1
+912
What is the degree of the polynomial −6x3y2+5x4−7z?
What is the degree of the polynomial −6x3y2+5x4−7z?
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AngelRay
Jan 11, 2018
-1
3986
1
+912
Which description is correct for the polynomial 3x4+x+7?
Which description is correct for the polynomial 3x4+x+7?
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AngelRay
Jan 11, 2018
Jan 10, 2018
-1
597
1
Help!
Select ALL of the order pair solutions to 30 = 10x + 6y - 4x
a. (2,1)
b. (3,2)
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Guest
Jan 10, 2018
0
2045
1
+912
Which expressions are polynomials? Select each correct answer.
Which expressions are polynomials?
Select each correct answer.
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AngelRay
Jan 10, 2018
+1
1100
1
+166
Algebra Word Problems
So I'm in algebra class, and I figured out that I'm really stupid at Algebra but smart at Science. Have no idea how that's possible. But please help with this proportion word problem and this other word problem I can't seem to figure out.
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MrPatel
Jan 10, 2018
-1
622
1
+4116
Help.
Help.
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NotSoSmart
Jan 10, 2018
-1
746
1
+4116
Help.
Help.
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NotSoSmart
Jan 10, 2018
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