3 years ago

Quick question a lot of points help please

1 answer:

5 0

the right answer to the question is catch me on the root mean square velocity of gas molecule when measured by galvanometer to produce circular egg in the presence of light under blanket.

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A radio telescope has a parabolic surface as shown below. If the telescope is 1 m deep and 20 m wide, how far is the focus from

Elis [28]

Answer:

Step-by-step explanation:

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3 years ago

A dog is tied to a 14 foot long leash in the middle of the yard. How much area does the dog have to run around? (use for pi)

irga5000 [103]

A=πr²

since the l l leash is 14 ft, that is our radius, so area is 14²π or 196π or approximately615.75 square feet

7 0

3 years ago

I need help I dont know how to do it

ludmilkaskok [199]

To solve this problem, we will use the completing the square method of solving quadratic equations

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First we find half the coefficient of x:

$\begin{gathered} \frac{1}{2}\text{ of B}=\frac{B}{2} \\ \end{gathered}$

4 0

1 year ago

HELP PLEASE I NEED HELP I DONT UNDERSTAND THIS

Doss [256]

Answer:

t=44°

Step-by-step explanation:

The sum of the interior angles of any pentagon is always 540 degrees.

Let's set up an equation with this information: (all figures are in degrees)

$t+3t+t+32+149+139=540$

Now we combine all like terms.

$5t+320=540$

Now begin to isolate t be subtracting 320 from both sides.

$5t=220$

Finally divide both sides by 5 to isolate t.

t=44°

5 0

3 years ago

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Two points (-2,4) and (2,4) and plotted on a coordinate grid. Which expression below can you use to find the distance between tw

Allushta [10]

Answer:

First, let's address the general case.

When we have two points (a,b) and (c,d)

The distance between those points can be written as:

D = √( (a - c)^2 + (b - d)^2)

In this case, the points are:

(-2,4) and (2,4)

Then the distance is:

D = √( (-2 - 2)^2 + (4 - 4)^2) = √(-4)^2 = 4.

The equivalent expression to this is: |-2| + |2|

because:

I-2I = 2

I2I = 2

I-2I + I2I = 2 + 2 = 4.

8 0

3 years ago