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3 years ago

Wavelength and Frequency

Mathematics

2 answers:

avanturin [10]3 years ago

8 0

Answer:

D - 2 to 1

Step-by-step explanation:

I think the answer is 2 ratio 1 because of the wavelength of the blue note of 1/2 less than the wavelength of the red note.

makvit [3.9K]3 years ago

5 0

Answer:

D. 2 to 1

Step-by-step explanation:

I calculated it logically

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50 POINTS!<br><br> What is the value of arcsin(−1/2) in degrees?

Veronika [31]

Answer:

- $\frac{\pi }{6}$

Step-by-step explanation:

arcsin(−1/2) = -arcsin(1/2)

In the table of common values,

-arcsin of 1/2 = π/6 = -π/6

Note: Memorize the results of the common values.

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3 years ago

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What are the 3 different forms of a quadratic function and what do the variables in each represent?

Likurg_2 [28]

Answer:

general, factored, and vertex form.

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Factored: y=(x+a)(x+b)

Vertex: y=a(x-h)^2+k

Step-by-step explanation:

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3 years ago

I need this ASAP please

Oksanka [162]

Yes..The answer s D. because the circles are congruent and in the question, it stated that it wanted circles that were similar, not congruent

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3 years ago

Taylor writes an expression with 5 terms. All 5 terms are like terms. How many terms are in the equivalent expression with the l

Volgvan

I have no clue I’m dum

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2 years ago

The figure is made up of a cylinder and a sphere which has been cut in half. The radius of each half sphere is 5 mm. What is

alexgriva [62]

<h2>Answer:</h2>

<em>Rounded to the nearest hundredth the volume of the composite figure is:</em>

<em>1308 33 cubic millimeters</em>

<h2>Explanation:</h2>

Hello! I wrote the complete question in a comment above. The volume of a cylinder is defined as:

$V_{c}=\pi r^2 h \\ \\ r:radius \\ \\ h:height$

While the volume of half a sphere is:

$V_{hs}=\frac{2}{3}\pi r^3$

Since we have 2 half spheres, then the volume of these is the same as the volume of a sphere:

$V_{s}=\frac{4}{3}\pi r^3$

Then, the composite figure is:

$V=\pi r^2 h +\frac{4}{3}\pi r^3 \\ \\ V=\pi r^2(h+\frac{4}{3}r)$

The radius of the cylinder is the same of the radius of each half sphere. So:

$r=5mm \\ \\ h=10mm \\ \\ \\ V=(3.14) (5)^2((10)+\frac{4}{3}(5)) \\ \\ V=25(3.14)(10+\frac{20}{3}) \\ \\ \boxed{V\approx 1308.33mm^3}$

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3 years ago