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yaroslaw [1]
3 years ago
5

Helpppp meee please this is due in 20 mins

Mathematics
1 answer:
klemol [59]3 years ago
7 0
69.1 do the maths my manzzz
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How long does it take for sunlight to reach earth? Show Work!
Jet001 [13]

Answer: 8.3 minutes

Step-by-step explanation:

The time t may be obtained using the speed distance equation s=d/t. Rearranged to solve for time it would be: t=s/v, where s is the distance between the Sun and Earth and v is the speed of light.

5 0
3 years ago
Read 2 more answers
Choose the correct simplification of the expression a to the 7th power times b to the 8th power all over a to the 4th power time
defon
First you need to write the numerical equation for the given:

\frac{ a^{7}  b^{8} }{ a^{4}  b^{4} }

When you will simplify this fraction, you can divide the expressions. Based on the law of exponents when you divide like terms with different exponents, you can subtract the exponents of the denominator from the numerator. 

So if you will simplify the equation:

\frac{ a^{7} b^{8} }{ a^{4} b^{4} }

Subtract the following:

Exponents of a 7-4 and;
Exponents of b 8-4

Your answer should be 
a^{3}  b^{4}
3 0
3 years ago
What is the answer to (4*10^6)*(1*10^4)
nataly862011 [7]

Answer:

Scientific notation: 4 x 10^10

Expanded form: 40,000,000,000

Step-by-step explanation:

(4 x 10^6) x (1 x 10^4)

(4 x 1,000,000) x (1 x 10,000)

(4,000,000) x (10,000)

40,000,000,000

6 0
3 years ago
Need help quick due at 3 15
Dmitry [639]
The answer is B. Plug in x^2 for f(x) which is y=-1/4x^2
The vertex is (0,0)
The focus is (0,-1)
The directrix is y=1
Graph is B.
7 0
3 years ago
How many remainders are possible when 7 is made as the divisor?
Darya [45]
I think if you divide 2, the answer is 3......1
if 3, the answer is 2......1
if 4, the answer is 1......3
if 5, the answer is 1......2
if 6, the answer is 1......1
7 0
3 years ago
Read 2 more answers
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