All Questions

0

819

1

Three Alg 2 Questions

What is the degree form for 4π5 radians?
°____

read more ..

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Guest Jan 11, 2018

+1

792

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 read more ..

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Guest Jan 11, 2018

+1

849

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

829

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 read more ..

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Guest Jan 11, 2018

0

777

1

+4117

Help.

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NotSoSmart Jan 11, 2018

0

844

4

sin -1?

How do i use sin -1

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Guest Jan 11, 2018

0

794

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: read more ..

ElectricPavlov ●●●

Guest Jan 11, 2018

0

858

3

Adding and subtracting rational expressions

a - 3b + a + 5b
a + b a + b

hectictar ●●●

Guest Jan 11, 2018

+2

1097

1

+490

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

946

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 read more ..

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sii1lver Jan 11, 2018

0

906

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

1716

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 read more ..

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Guest Jan 11, 2018

0

951

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

810

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. read more ..

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Guest Jan 11, 2018

0

2377

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

2593

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

1415

1

+912

Simplify. (4x−3+2x2)+(2x+1)

Simplify.
(4x−3+2x2)+(2x+1)

read more ..

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AngelRay Jan 11, 2018

-1

3188

1

+912

What is the degree of the polynomial −6x3y2+5x4−7z?

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AngelRay Jan 11, 2018

-1

4053

1

+912

Which description is correct for the polynomial 3x4+x+7?

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AngelRay Jan 11, 2018

-1

702

1

Help!

Select ALL of the order pair solutions to 30 = 10x + 6y - 4x

a. (2,1)
b. (3,2) read more ..

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Guest Jan 10, 2018

0

2149

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

1186

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. read more ..

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MrPatel Jan 10, 2018

-1

714

1

+4117

Help.

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NotSoSmart Jan 10, 2018

-1

863

1

+4117

Help.

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NotSoSmart Jan 10, 2018

All Questions ⁺⁰237827 Questions

Three Alg 2 Questions

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?

science

Test Prep Help - Trigonometry

Help.

sin -1?

please help me URGENT!!

Adding and subtracting rational expressions

How many of the 343 smallest positive integers written in base 7 use 4 or 5 (or both) as a digit?

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? *

Can someone help me I do not understand the question

Help

Nora and Ryan

geom. question

Hep

Simplify. (3x2−2x+2)−(x2+5x−5)

Simplify. (4x−3+2x2)+(2x+1)

What is the degree of the polynomial −6x3y2+5x4−7z?

Which description is correct for the polynomial 3x4+x+7?

Help!

Which expressions are polynomials? Select each correct answer.

Algebra Word Problems

Help.

Help.

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