Answer:
23% of Michael's rock collection is metamorphic rock.
Step-by-step explanation:
We are given the following in the question:
Percentage of igneous rock in the collection = 27%
Percentage of sedimentary rock in the collection = 50%
Remaining rocks are metamorphic rock.
Total collection = 100%
Percentage of metamorphic rocks =
Thus, 23% of Michael's rock collection is metamorphic rock.
<u>The question is </u>
What is the constant in the expression?
we know that
where
c---------> the cost of Janelle’s cell phone bill
m-------> represents the number of minutes of use
-------> represent the cost per minute (slope of the linear equation)
-------> represent the constant in the expression
therefore
<u>the answer is</u>
The constant is 12
Answer:
yes
Step-by-step explanation:
the FIRST derivative of a function tells us the slope of a tangent line to the curve at any point. if is positive, then the curve must be increasing. If is negative, then the curve must be decreasing.
the SECOND derivative gives us the slope of the slope function (in other words how fast the slope of the original function changes, and if it is accelerating up - positive - or if it is avengers down - negative).
so, the first derivative would be fully sufficient to get the answer of if the slope of the function at that point is positive or negative.
but because it is only a "if" condition and not a "if and only if" condition, the statement is still true.
there are enough cases, where the slope is positive, but the second derivative is not > 0 (usually = 0).
but if even the second derivative is positive, then, yes, the slope of the original function must be positive too.
Answer:
Step-by-step explanation:
Slope m = 
=
Expand
(4a + 12 = 12 + 4a)
Cancel 4a on both sides
12 = 12
Since both sides are equal there are infinitely many solutions
Process of elimination, cross out d) no solution. But I would best go with C)
