Number of miles traveled by light in a light-year is 5.952 × 10^12 miles
Step-by-step explanation:
- Step 1: Find the number of miles (distance) in a light year by using the formula for speed = Distance/Time
⇒ Distance = Speed × Time
= 1.86 × 10^5 × 1 yr (convert to seconds)
= 1.86 × 10^5 × 365 days × 24 hrs × 60 mins × 60 sec
= 1.86 × 10^5 × 31,536 × 10³
= 1.86 × 3.2 × 10^5 × 10^7
= 5.952 × 10^12 miles
Answer:
11
Step-by-step explanation:
|11| is a module, the numbers inside a module are equal to positive ones so
|11| and |-11| are both equal to 11
<span> x − 2y = −1 => x = 2y -1
2x + y = −12
2(2y - 1) + y = -12
4y - 2 + y = -12
5y = -10
y = -2
x = 2</span>·(-2) - 1
x = -4 - 1
x = -5
Answer <span>D (-5,-2)</span>
Answer:
-2a³+9a²+45a+6ab²+18b²
Step-by-step explanation:
(a+3)(-2a²+15a+6b²)
Distribute the a:
-2a³+15a²+6ab²
Then distribute the 3:
-6a²+45a+18b²
Now add both of the results together:
-2a³+15a²+6ab²-6a²+45a+18b²
Combine like terms:
-2a³+9a²+45a+6ab²+18b²
