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3 years ago

5

The speed of light is 299,792,458 meters per second. About how far can a light beam travel in 3 seconds? Write your answer as a

product of a single digit and a power of 10.
The light beam can travel about :
meters.

1 answer:

ArbitrLikvidat [17]3 years ago

4 0

Answer:

9 x 10 to the power of 8 meters in 3 seconds

Step-by-step explanation:

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Ahmed wrote two numbers. The first number has a 7 in its tenths place. The

Colt1911 [192]

Answer: i think the answer is B thousands

Step-by-step explanation:

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3 years ago

Read 2 more answers

Consider a Triangle ABC like the one below. Suppose that C = 98, A = 74, and b = 11 (figure is not drawn to scale.) solve the tr

Degger [83]

Answer:

$A=73.8\°$

$B=8.2\°$

$c=76.3\ units$

Step-by-step explanation:

step 1

Find the measure of side c

Applying the law of cosines

$c^{2}= a^{2}+b^{2}-2(a)(b)cos(C)$

substitute the given values

$c^{2}= 74^{2}+11^{2}-2(74)(11)cos(98\°)$

$c^{2}=5,823.5738$

$c=76.3\ units$

step 2

Find the measure of angle A

Applying the law of sine

$\frac{a}{sin(A)}=\frac{c}{sin(C)}$

substitute the given values

$\frac{74}{sin(A)}=\frac{76.3}{sin(98\°)}$

$sin(A)=(74)sin(98\°)/76.3$

$A=arcsin((74)sin(98\°)/76.3)$

$A=73.8\°$

step 3

Find the measure of angle B

we know that

The sum of the internal angles of a triangle must be equal to 180 degrees

so

$A+B+C=180\°$

substitute the given values

$73.8\°+B+98\°=180\°$

$171.8\°+B=180\°$

$B=180\°-171.8\°=8.2\°$

5 0

3 years ago

Find the value of x.<br><br> help pls

AlexFokin [52]

Answer:

10

Step-by-step explanation:

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3 years ago

Augustin has 20 different chess boards. If he played 3 games per day, each game played on a different board, how long would it t

Nutka1998 [239]

Answer:

514 days

Step-by-step explanation:

We use the formula (r+n-1)/r(n-1)

There are 1540 combinations. Then, we'll divide them by three because were not just finding the amount of combinations, but the time it'd take to play them all.

We get 513.333(cont.)

thats not really possible, so we're gonna go with 514 instead, rounding up. Normally we'd round down, because the number behind the decimal is below 5, but we really want to make sure we get every combination in there.

Hope this is helpful!

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3 years ago

I really need help with this Triangle problem

hjlf

Answer:

30

Step-by-step explanation:

pythagoras theorem

x

${x}^{2}$

$=225 \times 2 + 225 \times 2 \\$

=900

x=30

3 0

3 years ago