The appropriate number of significant figure of the mathematical operation 16.2156 +0.014 is 16.230.
<h3 /><h3>Significant figures:</h3>
- 16.2156 is a 6 significant figures number
- 0.014 is a 2 significant figures number
Therefore,
16.2156 + 0.014 = 16.2296
Therefore, let's round it up to 5 significant figures as follows;
learn more on mathematical operation here: brainly.com/question/13055274?referrer=searchResults
Use the rules of logarithms and the rules of exponents.
... ln(ab) = ln(a) + ln(b)
... e^ln(a) = a
... (a^b)·(a^c) = a^(b+c)
_____
1) Use the second rule and take the antilog.
... e^ln(x) = x = e^(5.6 + ln(7.5))
... x = (e^5.6)·(e^ln(7.5)) . . . . . . use the rule of exponents
... x = 7.5·e^5.6 . . . . . . . . . . . . use the second rule of logarithms
... x ≈ 2028.2 . . . . . . . . . . . . . use your calculator (could do this after the 1st step)
2) Similar to the previous problem, except base-10 logs are involved.
... x = 10^(5.6 -log(7.5)) . . . . . take the antilog. Could evaluate now.
... = (1/7.5)·10^5.6 . . . . . . . . . . of course, 10^(-log(7.5)) = 7.5^-1 = 1/7.5
... x ≈ 53,080.96
The method for working out how much they each paid is incorrect, lets look at it from a different perspective.
The 3 guys paid him $30, now he gives back $5 to the guys.
So there is $25 with the owner and $5 with the bell boy.
Now the bell boy keeps $2 and gives back $3, $1 to each of the guys.
So there is $25 with the owner, $2 with the bell boy and $3 with the guys.
Now indeed the guys paid $30 - $3 which is $27 dollars, but we can see that that is now split between the owner and the bell boy as $25 + $2 = $27 dollars.
Answer:
887 and 792 km per hour
Step-by-step explanation:
Lets call the first plane A and the second B
we know that: a=b+95
We can say that 3358=2b+(2b+190)<=A
When solved, we get 3168=4b
b=792 km per hour.
Go back to step two. A=b+95, so A=792+95=887 km per hour
The two planes rates are 887 km per hour and 792 km per hour.
Answer:
<h2>It's a right triangle. a = 5.</h2>
Step-by-step explanation:
Look at the picture.
We have the triangle 30° - 60° - 90°. The sides are in ratio 1 : √3 : 2.
We have:
<em>divide both sides by √3</em>
It's a right triangle.
