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3 years ago

How long does it take light to travel a distance of 2000 meters?

Mathematics

1 answer:

Effectus [21]3 years ago

6 0

It takes about 1/186,282 seconds for light to travel 2000 meters

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Mr. Martin is giving a math test next period. The test, which is worth 100 points, has 29 problems. Each problem is

Sedaia [141]

Answer:

x + y = 29, 5x + 2y = 100

Step-by-step explanation:

First, create an equation based on how there are 29 problems on the test.

x + y represents all of the questions on the test, so it should be set equal to 29.

The first equation is x + y = 29.

Now, create an equation based on how the test is worth 100 points.

5x will represent the points from the questions worth 5 points, and 2y will represent the points from the questions worth 2 points.

These terms will be added together, and set equal to 100.

The second equation is 5x + 2y = 100.

So, the system of equations is x + y = 29, 5x + 2y = 100

8 0

3 years ago

Find K by evaluating Limit

Lubov Fominskaja [6]

Answer:

Step-by-step explanation:

$\lim_{x \to \infty}\frac{1-cos4x}{1-cos2x}= \lim_{x \to 0} \frac{(1-cos4x)'}{(1-cos2x)'}= \lim_{x \to 0}\frac{4sin4x}{2sin2x}= \lim_{x \to 0}\frac{2*2sin2xcos2x}{sin2x}\\ = \lim_{x \to 0}4cos2x\\ =4$

{L'Hospital's rule}

<em>I hope this helps you</em>

6 0

2 years ago

Which number completes the sequence ?

bulgar [2K]

Answer:

Step-by-step explanation:

1st circle - $1+3+6=10$

3rd circle - $6+2+5=13$

2nd circle is proboably the same way.

3 0

3 years ago

Estimating Quotients:

Doss [256]

The answer is between 97 and 86. The estimated answer is 89

6 0

3 years ago

5 more than the square of 3,

valentina_108 [34]

Answer:

√3+5

Step-by-step explanation:

You have to flip the equation when it says more than.

6 0

3 years ago

Read 2 more answers