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ivanzaharov [21]
3 years ago
8

The speed of sound is about 3.4 × 102 meters per second. Mark is performing a science experiment and he needs to know how far so

und travels in 3 × 1010 seconds. If Mark uses a calculator to solve this problem, how will the calculator show the answer? it needs to have an E in the answer
Mathematics
1 answer:
Fed [463]3 years ago
5 0

Speed of the sound =  meters per second

Time to calculate the distance traveled =  3*10' 10 seconds

Since,

1.0*10 ' 13

Distance = Speed x Time

Using the values we get:

distance =3.4*10'2*3+10´30

3.4*3*10' (2+10)

10.2*10' 12

Since the calculators show the final answer is scientific notation, the above answer in scientific notation would be:

Distance = 1.02*10°13

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ASAP!!!
rosijanka [135]

Answer:

D all the real numbers greater than or equal to -3

Step-by-step explanation:

8 0
3 years ago
Help please simple question
Korvikt [17]

Answer: x ≤ − 3/2

how i got the answer : I used something but it wont let me say ;-; hope it helps!

 

8 0
2 years ago
can someone explain the proses of solving this? I don't need the answer but a step-by-step explanation would be super helpful!
Klio2033 [76]

Part 1

Focus on triangle ABC.

Since AB is a diameter of the circle, this means angle ACB is 90 degrees. Refer to Thale's Theorem. Or you could use the inscribed angle theorem. Thale's theorem is a special case of the inscribed angle theorem.

Minor arc CB is 48 degrees. Use the inscribed angle theorem to see that angle CAB is 48/2 = 24 degrees.

Therefore, angle CBA = 90 - (angle CAB) = 90 - 24 = 66 degrees

<h3>Answer: 66</h3>

========================================================

Part 2

Inscribed angle CBA was found to be 66 degrees back in part 1.

This doubles to 132 degrees to represent minor arc AC.

Or you could note that:

minor arc AC = 180 - (minor arc CB) = 180 - 48 = 132

Inscribed angle BCD is 48 degrees. This doubles to 96 degrees when using the inscribed angle theorem, and this is the measure of minor arc CBD.

-----------

Here's what we know about the arc measures of the circle

  • minor arc AC = 132 degrees
  • minor arc CB = 48 degrees
  • minor arc BD = 96 degrees

These three arcs, along with minor arc AD, will add up to get a full 360 degree circle. Check out the diagram below.

Adding those 3 pieces gets us 132+48+96 = 276

This means minor arc AD has to be 360 - 276 = 84 degrees

Then use the inscribed angle theorem one more time to divide the minor arc AD in half to get the inscribed angle ACD

84/2 = 42

<h3>Answer:  42</h3>

6 0
1 year ago
The table below is representing direct<br> variation.
valentina_108 [34]
Where is the table? I can’t help unless I can see the table
7 0
2 years ago
Solve by completing the square? Could you please work it out step-by-step?
DaniilM [7]
16 n^2 -10n + 129 = 8n^2 -8

We collect the terms:
8n^2 -10n + 137 = 0

The steps for completing the square:

1) Move the "non X" (or "non N") term to the right:

8n^2 -10n  = -137

<span>2)<span> Divide the equation by the coefficient of N² which in this case is 8
n^2 -1.2n = </span></span><span><span>-17.125 </span>

3) Take the coefficient of "N"; divide it by 2; square it; add it to both sides of the equation.
-1.2 / 2 = -.6
-.6^2 = .36

</span>
n^2 -1.2n +.36 = <span>-17.125 +.36

Take the square root of both sides:</span>
(n-.6)*(n-.6) = sq root( <span> <span> <span> -16.765 </span> </span> </span> )
That's about as far as I can go.

4 0
3 years ago
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