All Questions

0

75

1

+2206

Help.

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NotSoSmart Jan 11, 2018

-1

83

1

+177

Help!

Does anyone know Spanish very well?

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party.girl286 Jan 11, 2018

0

79

1

+2206

Help

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NotSoSmart Jan 11, 2018

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89

3

+2206

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NotSoSmart Jan 11, 2018

-1

70

1

+434

help

English has 6 letters that can be vowels. This includes Y, which can be either a consonant or a vowel; for this problem, we'll consider Y a vowel.
The other 20 English letters are always consonants.
How many two-letter "words" can we make from these read more ..

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SmartMathMan Jan 11, 2018

0

57

0

+434

help anyone out there?

How many ways are there to divide a red bracelet, a yellow bracelet, a green bracelet, and a black bracelet among 4 people if each person can receive any number of bracelets, including 0? Each bracelet must be given to someone.

SmartMathMan Jan 11, 2018

0

80

1

+2206

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NotSoSmart Jan 11, 2018

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86

1

+2206

Help.

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NotSoSmart Jan 11, 2018

0

245

1

A circle has an arc of length 32π that is intercepted by a central angle of 240. What is the radius of the circle?

A circle has an arc of length 32π that is intercepted by a central angle of 240°.
What is the radius of the circle?

A circle has a radius of 48 millimeters.
What is the central angle in radians, that read more ..

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Guest Jan 11, 2018

0

83

1

Three Alg 2 Questions

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

read more ..

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Guest Jan 11, 2018

+1

70

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

73

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

75

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

91

1

+2206

Help.

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NotSoSmart Jan 11, 2018

0

115

4

sin -1?

How do i use sin -1

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Guest Jan 11, 2018

0

108

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

99

3

Adding and subtracting rational expressions

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

hectictar ●●●

Guest Jan 11, 2018

+2

103

1

+376

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

101

2

+243

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

113

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

156

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

95

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

103

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

90

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

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A circle has an arc of length 32π that is intercepted by a central angle of 240. What is the radius of the circle?

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

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