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wariber [46]
3 years ago
11

1. The formula for the velocity of an object is d=v/t, where v is the object, d is the distance traveled, and t is the time the

object takes to travel that distance.
A) Which variable should you isolate in order to determine how long it takes for light to travel from the Sun to Earth?

B) what values do you need to know to calculate how long it takes for light to travel from the Sun to Earth?


Solve for the variable that you identified in part a. Show all steps.
Mathematics
1 answer:
Arlecino [84]3 years ago
6 0

Answer:

you need to isolate t or time

you need to know distance between sun and earth and velocity of them in order to calculate how long it takes for light to travel from the Sun to Earth

Step-by-step explanation:

t*(d)=(v/t)*t\\td= v\\\\\frac{td}{d} =v/d \\t=v/d

to find time you multiply t to both sides then you cancel t from where velocity is and you get velocity by itself

now you mulipy d to both side to get v over d and time by itself

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A 12 foot board is cut so that one piece is 5 times as long as the other. Find the length of each piece.
sveta [45]

Answer:

2 and 10

Step-by-step explanation:

Let x be length of the small piece and y the length of the big one.

● y = 5x

Since the big piece is 5 times longer than the short one.

The total length is 12 ft

● y + x = 12

● 5x + x = 12

● 6x = 12

Divide both sides by 6

● 6x/6 = 12/6

● x = 2

So the length of the two pieces are 2 ft and 10 ft (5×2)

4 0
3 years ago
What’s is a referent for a km
Afina-wow [57]

Answer:

km stands for kilometers

7 0
3 years ago
Please help me!!!!! Urgent!
topjm [15]
The slope is 1/2.
You can figure it out using the rise over run method
8 0
3 years ago
MAX POINTS PLS ANSWER CORRECTLY OR WILL REPORT ty !
Oksana_A [137]

Answer:

136112 cm^{2}

Step-by-step explanation:

since the outer circle is 25cm wider on one side, the radius of outer circle is 25 cm wider. (imagine rotating the green line to match with the pink line, you'll see the outer circle radius more clearly)

r of inside circle = 148.4/2 = 74.2

r of outside circle = 74.2 +25 = 99.2

the shaded region = A of outer circle - A of inner circle

=3.14(99.2)^2 - 3.14(74.2)^2

area of a circle is \pi r^{2}, I plugged in known values above^.

= 30899.6096 - 17287.7096 = 13611.9 (I definitely recommend a calculator)

rounded to nearest whole number = 13612

4 0
3 years ago
Read 2 more answers
(50 points)(please make sure you know what you're doing)(absurd answers will be reported)
Tatiana [17]

Answer:

  see below

Step-by-step explanation:

Putting each equation in standard form is a good start.

1. Divide the first equation by 2. Divide the second equation by -5.

  • x +2y = 2
  • x - y = -1

2. Divide the first equation by 2; multiply the second by -1.

  • x +2y = 2
  • 3x -y = 1

3. Divide the first equation by 2.

  • x +2y = 2
  • 7x +5y = -1

4. Divide the first equation by 2.

  • x +2y = 2
  • 7x -y = 5

5. Divide the first equation by 2.

  • x +2y = 2
  • 7x -y = -1
7 0
3 years ago
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