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Orlov [11]
3 years ago
12

PLEASE LET ME KNOW (The answer ; explain if u want to)

Mathematics
1 answer:
Mrac [35]3 years ago
8 0

Answer:

It takes 500 seconds for sunlight to reach Earth.

The mass of the sun is 18.98 * 10^28.

Step-by-step explanation:

Step 1) In order to solve problem number one, you would need to divide. Remember, in math in order to get from the smaller unit to the bigger unit, you divide.

Step 2) In this case, the smaller unit is the distance from the sun to earth. The bigger unit in the other hand, is the speed of light.

Step 3) 1.5 * 10^11/300,000,000 = 500

Answer: It takes 500 seconds for sunlight to reach Earth.

—

Step 1) In order to solve problem number 2, convert 26,000,000 in scientific notation which is 2.6 * 10^7.

Step 2) Now, multiply the mass of the sun by the mass of the moon.

(7.3*10^22) * (2.6 * 10^7)

Step 3) Note: whenver you multiply with exponents, you must always add them, the base remains the same.

10^22 + 10^7 = 10^29

7.3 * 2.6 = 18.98

Answer: To conclude, the mass of the sun is 18.98 * 10^28.

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Find the domain of f(x) =√3x-1
maw [93]

Answer:

The domain of the expression is all real numbers except where the expression is undefined. In this case, there is no real number that makes the expression undefined.

( − ∞ , ∞ )  

{x | x  ∈  R }


Hope this helps I'm 80% sure this right.



4 0
3 years ago
Maya deposits $8000 into an account that pays simple interest at a rate of 2% per year. How much interest will she be paid in th
Amiraneli [1.4K]
So just find 2% of 8000 and multiply by number of years since

I=PRT
R=rate
T=time in yyears
P=principle
I=interest

8000=principle
rate=2%
time in years=2

2%=0.02
so
I=8000 times 0.02 times 2
I=320

answe ris $320
7 0
3 years ago
"5. Multiple-choice questions each have five possible answers (a,b,c,d,e), one of which is correct. Assume that you guess the an
Nina [5.8K]

Answer:

A) P(WWC) = 0.128

B) P(WCC) = 0.032

P(CWC) = 0.032

P(CCW) = 0.032

C) probability of getting 2 correct answers when 3 guesses are made is i.e P (1 wrong and 2 correct) = 0.064

Step-by-step explanation:

A) Using the multiplication rule, we have; P(A and B) = P(A) x P(B)

Probability of a wrong answer = 4/5 = 0.8

Probability of a correct answer = 1/5 =0.2

Thus; P(WWC) = 0.8 x 0.8 x 0.2 = 0.128

B) Beginning with one wrong and two correct answers, a complete list of all possibilities is;

P(WCC), P(CWC), P(CCW)

Hence the complete list is;

(0.8 x 0.2 x 0.2); (0.2 x 0.8 x 0.2); (0.2 x 0.2 x 0.8)

So we have;

P(WCC) = 0.032

P(CWC) = 0.032

P(CCW) = 0.032

C) Based on the results above, the probability of getting 2 correct answers when 3 guesses are made is i.e P(1 wrong and 2 correct) = 2 x 0.032 = 0.064

7 0
3 years ago
I need help anyway can help me
Katen [24]

Answer:

With what?

Step-by-step explanation:

Just give me your question

5 0
2 years ago
Read 2 more answers
<img src="https://tex.z-dn.net/?f=%2815%2B23%29%2B7%3D15%2B%28_______%2B7%29" id="TexFormula1" title="(15+23)+7=15+(_______+7)"
Tanya [424]
If your looking for solutions their will be zero. Since 15+23+7=15+7 is false, there is no solution.
4 0
3 years ago
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