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3 years ago

In how many ways can a student answer the questions on the test if the student can leave answers blank

Mathematics

1 answer:

MaRussiya [10]3 years ago

6 0

They can have multiple answers or leave it blank

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kiruha [24]

Answer: attach the file sir and if it says sorry someone is already working on this question post an0ther

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anyanavicka [17]

Answer:(3,3) eery year

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3 years ago

30 POINTS Which is an x-intercept of the graph of the function y=cot(3x)?

Allisa [31]

Answer:

$x=\frac{\pi}{6}$

Step-by-step explanation:

Choices aren't given, so i will solve this equation and find the first positive x-intercept angle.

First, x-intercept means the x-cutting point of the graph. This occurs when y = 0. So we will solve the equation for x. Shown below:

$y=Cot(3x)\\Cot(3x)=0\\ArcCot(Cot(3x))=ArcCot(0)\\3x=ArcCot(0)$

Inverse Cotangent (ArcCot) of 0 is at $\frac{\pi}{2}$ , so we can now solve for x:

$3x=ArcCot(0)\\3x=\frac{\pi}{2}\\x=\frac{\pi}{6}$

So, the x-intercept is at x = pi/6

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3 years ago

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harkovskaia [24]

Answer:

I do not know this . . . sorry

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The volume of a number cube is 27 cm^3. What is the length of each side of a cube?

Alex

Answer:

Step-by-step explanation:

Since it's a "cube", all sides must be equal. Therefore, the length of one side is equal to the cube root of the volume.

3√27=3

An area of one surface is equal to

3²=9

Since the area of all surfaces are equal, we can assume that the surface area of this cube is

9⋅6

, because there are 6 surfaces on a cube

9⋅6=54

Hope this helps.

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