Mathematics High School

Given the that the speed of light in a vacuum is about 3.0x10 to the power of 8 meters per second how far does light travelin two weeks
using scientific notation

Answers

Answer 1

The light travel in two weeks is 1.2700 × [tex]10^1^5[/tex] m/ week

In the given statement is :

The speed of light in a vacuum is about 3.0 x 10^8 m/sec
We know that , Formula of speed i.e.,

Speed = distance / Time

Use dimensional analysis to find the answer:

[tex]3.0[/tex] × [tex]10^8 m/s[/tex] × 60s/min × 60min./ h × 24 h/ day ×7 days/week × 7 days/week

=[tex]3.0[/tex] [tex](60)^2 (24)(7)(7)[/tex] × [tex]10^8[/tex] = 12,700,800 × [tex]10^8[/tex]

= [tex]1.2700[/tex] ×[tex]10^7[/tex]×[tex]10^8[/tex]

= [tex]1.2700[/tex] × [tex]10^7^+^8[/tex]

=  1.2700 × [tex]10^1^5[/tex] m/week

Hence, The light travel in two weeks is 1.2700 × [tex]10^1^5[/tex] m/ week

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Related Questions

What is the slope of the line that passes through the points (4, 6)and (-16, -18)? Write your answer in the simplest form.

Answers

Answer:

6 / 5

I hope it is correct.

Step-by-step explanation:

Slope is (y2 - y1) / (x2 - x1)

choose two points: (4, 6) and (-16, -18)

(-18 - 6) / (-16 - 4)

-24 / -20 (simplify by -4)  

6 / 5

(√x)5 help please fast

Answers

Answer:

x2√x

Step-by-step explanation:

Simplify the radical by breaking the radicand up into a product of known factors, assuming positive real numbers.

Solve for x
(x+3)^2

A. x^2 + 3x + 2
B. 2x^2 + 3x + 2
C. x^2 + 6x + 2
D. x^2 + 6x + 9

Answers

Answer:

D. x²+6x+9

Step-by-step explanation:

—Math

(x + 3)² = (x + 3)(x + 3)

= x² + 3x + 3x + 9

= x² + 6x + 9

follow my account ^^

Answer:

D.) just took the Unit Session

Step-by-step explanation:

Use distributive property to rewrite

1. 4(x + 9)

2. 3 (-2x + 4)

Answers

Answer:

i forgot what it was sorry

Step-by-step explanation:

Answer:

4x+36

-6x+12

Step-by-step explanation:

Answers or correcting?

Answers

Answer:

Good.

Step-by-step explanation:

Answer:

This looks really good to me!

Help please 25 Points + Brainliest
x=6 y=4 solve 3x^2y+4x/y

Answers

Answer:

114. There is something wrong with the options im 100% sure its 114 talk to your teacher.

The solution is just to substitute

The points (-5, 5) and (5, r) lle on a line with slope -3. Find the missing coordinate r.

Answers

Answer:

r = -25

Step-by-step explanation:

slope is change in "y" over change in "x"

so whatever your change in "x" is between the two points, the change in "y" needs to be in proportion to the slope of -3.

Here the change in "x" is +10, and to make the proportion of the slope equal to -3, the change in "y" needs to be -30.

Starting from the "y" coordinate of 5, a change in "y" of -30 will give you r = -25

So the two points are (-5, 5) and (5, -25)

What is the slope of the equation y = 12x - 19?

Answers

Answer:

12 is the slope.

Step-by-step explanation:

This is because in the equation y = mx + b, m is the slope.

Hope this helps!

please help! confused & tired :(

Answers

Answer:

8 feet

Step-by-step explanation:

Answer:

a=8 ft

Step-by-step explanation:

Keegan and Annie are working on an experiment in the science lab. Their mixture contains ingredients that weigh 5.22 grams, 5.7 grams, and 7.43 grams. Keegan calculates the combined weight to be 18.35 grams; Annie calculates it to be 13.22 grams.
Who is correct, and why?

Answers

Answer:

C.

Step-by-step explanation:

Annie did not do it right

Answer:

C

Step-by-step explanation:

I need help and if you know it I would really appreciate it!

Answers

Answer:

B

Step-by-step explanation:

A non-proportional linear expression is when it's not going over the origin.

What is the solution to the equation? 5-3x = x - 7 1 O A. 2 OB. 1 OC. C. 2 D. 3​

Answers

Answer:

D. x=3

Step-by-step explanation:

Write two equivalent equations for the equation 3f+2m=16.

Answers

Answer:

16=3f+2m

16-2m=3f

Step-by-step explanation:

Laura drove 255 miles in 5 hours.at the same rate, how many miles would she drive in 8 hours

Answers

Answer:

Step-by-step explanation: 255/5=51 51x8= 408

Force is giving away tickets to a school play. She gives away 20 more adult tickets than children's tickets. She gives away 3 times as many senior tickets as she does adult tickets. Force gives away 40 children's tickets.
A.273
B.79
C.318
D228

Answers

d



hope that helps :))

The total number of tickets given away is 280

How to determine the total number of tickets?

To do this, we make use of the following representations:

c represents childrena represents adultss represents senior

From the question, we have the following equations:

a = 20 + c --- 20 more adult than children

s = 3a ---- 3 times as many senior as adult

c = 40 --- number of children tickets

Substitute c = 40 in a = 20 + c

a = 20 + 40

a = 60

Substitute a = 60 in s = 3a

s = 3 * 60

s = 180

The total number of tickets is:

Total = a + c + s

This gives

Total = 60 + 40 + 180

Evaluate

Total = 280

Hence, the total number of tickets given away is 280

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If 3x + y = 21 then what is the values of 9x +3y
—————-

9

Answers

A

X=0, Y=21

The answer to the fraction is 7 bc 63=21*3
So 63/9=7

Calculate the slope of the trend line
Please... :(

Answers

Answer:

Slope is .18

Step-by-step explanation

Find two points along the line.

Calculate slope using [tex]\frac{y2-y1}{x2-x1}[/tex].

I used the points (1985, .21) and (1990, .30).

4. 4c - 3 (c = -2)


will give 5 stars

Answers

4(-2)-3 = -8-3 = -11
Answer: -11

HELP ASAP PLS Which table represents the same equation as
y= -1/2x+5

Answers

Picture?
Go to desmos graphing calculator and plug it in

If f, g, and h are all positive number which of the following is NEVER true?

Answers

Answer:answer=A

step by step explanation:

because the question said they are all positive numbers and if it has the sign of minus and minus is a negative sign.

Lola's puppy weighed 19 ounces on the second visit the puppy had gained 9 ounces on the third visit the puppy heaven gained another 7 ounces what is the percent increase since the first visit and the puppy weighed around to the nearest percent

Answers

Answer:

84%

Step-by-step explanation:

In order to calculate this, we first need to calculate the total weight of the puppy on the last visit. We do this by adding the weight that the puppy gained each visit like so...

19oz + 9oz + 7oz = 35oz

Now that we have the final weight we simply divide the final weight by the initial weight of the puppy in the first visit. Then we subtract 1 from that value and multiply by 100 to get the percentage increase.

35oz / 19oz = 1.84

1.84 - 1 = 0.84

0.84 * 100 = 84%

Finally, we can see that the puppy had an 84% increase since the first visit.

3
5
-3 -2
2
What is the domain??

Answers

4 have a nice dayyyyy

write the slope intercept form of the equation of the line described.
through:(-2,0), parallel to y=-2x+3

Answers

Answer: y = -2x - 4

Slope will be same (-2) as the given equation bc they want a parallel line.
Use the given ordered pair and slope to solve for b.
Work:

You must show your staterment and reason T-chart to get full credit
Given: KS bisects Pą at T, Fą bisects RS at T.
Prove A PTS = AQTR

Answers

Step-by-step explanation:

RS bisects PQ at T. PQ bisects RS at T.

prove: Triangle PTS congruent Triangle QTR

Statements..............................Reasons

(1) RS bisects PQ at T.................(1) Given

(2) PQ bisects RS at T.................(2) Given

(3) angle PST ≅ angle QRT........(3) supplements of congruent angles

(4) TS ≅ TR......................(4) Converse of Base Angles Theorem

(5) angle PTS ≅ angle QTR.........(5) Subtraction Property of Equality

(6) Triangle PTS ≅ Triangle QTR...(6) Angle side angle

Hope it's help you..... ^_^❤️

For the function f (x) = –2x + 6, find f (7)

Answers

Answer:

-1/2

Step-by-step explanation:

You replace F(x) with 7, so

7=-2x+6

1=-2x  <--- subtract by 6

-1/2=x  <---- divide by -2

kasey are u online plz reply me 208x492​

Answers

Answer:

102336

Step-by-step explanation:

Im bored

Answer:

Hi, my name is Kasey. Are you talking about me??

Step-by-step explanation:

A toy factory makes 15 teddy bears every 10 minutes. The factory makes teddy bears for 8 hours each work day. What is the fewest number of work days the factory will need to make 5,000 teddy bears? Write an explanation to show how you determined your answer.

Answers

Answer:

1 day

Step-by-step explanation:

Cuz if 15 bears are made in 10 min you multiply by 60 cuz 60 min = 1 hour, so 15 times 60=900 then if the work 8 hr a day then u multiply 900 by 8 to get 7200 bears

The point ( -7 1 ) represents the location of a fountain on a map in a park. In what quadrant does the point lie

Answers

the answer would be quadrant 2

please help pre alg find x

Answers

Answer: x  = 5

Step-by-step explanation:

using pythagorean theorem

a^2   + b^2  = c^2

x^2  + 12^2  = 13^2

x^2  + 144 = 169

x^2 = 169 - 144

x^2 = 25

find the square root of 25

x = 5

Answer:

x = 10

Explanation....

Classify √3.
√3 means "the nonnegative square root of 3."
The square root of a number is a number that when multiplied by itself equals the original number. The radical symbol √ is used to denote the nonnegative square root.
​

Answers

√ 3 can be classified as a non negative square root of the number 3 which is also a real and irrational number.

We are given a number √ 3.

We need to classify the number.

First we can see that, this is the non negative square root of the number 3.

That is when we multiply √ 3 two times, we get the number 3.

Also, we can see that, it will be an irrational number as it will be non terminating and non repeating number.

That is it will be a real irrational number.

Therefore, we get that, √ 3 can be classified as a non negative square root of the number 3 which is also a real and irrational number.

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