Answer:
3 unless you're adding onto the 12 kilograms, then only 1
Step-by-step explanation:
"the candle is 17 inches tall after 3 hours" then it says " after 5 hours it is 15 inches tall"
-assuming that they mean that after 2 additional hours (from 3-5), the candle is now 2 inches shorter than before, a unit of decreasing value can be determined in this case the candle is "shortening" at a rate of 1 inch/per hour. If we write this in equation form it looks like this I think: h = h-t ...... right ? so then: h = 20 - 8 , h = 12 inches after 8 hours.
20 inches is the original height of the candle before any was burnt that I calculated using the same equation - What do you think of my answer.
Answer:
120 minutes=2 hours
Step-by-step explanation:
5 1/2 hours multiplied by 60=330
330 subtracted by 210=120 minutes=2 hours
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Factor x²+x-42
First, think of two numbers such that
- If we multiply them we'll get -42
- If we add them we'll get 1
These numbers are:-
7 and -6
Write them here:-
(x+7)(x-6)
<em>Note:-</em>
We don't have to use the Big X method, since the coefficient of x² is 1.
If it's greater than 1, like 2, then the Big X method comes in handy.
<h3>Good luck.</h3>
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The equation of a circle:
(h,k) - the coordinates of the center
r - the radius
The center is (-7,-1), the length of the radius is 6 units.
The answer is D.