Answer:
a. 3/4 inches per minute
b. -1 1/8 inches per minute
c. B is fastest; 1 1/8 is more than 3/4
Step-by-step explanation:
A <em>change</em> is a <em>difference</em>. A <em>rate of change</em> is <em>one difference divided by another</em>, usually the change in y-value divided by the change in x-value.
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<h3>a.</h3>
The change in elevation is the difference between the elevation at the end of the period (6 inches) and the elevation at the beginning of the period (3 inches). The change in time period is the difference between the end time (8 min) and the beginning time (4 min).
change in elevation per minute = (6 -3 inches)/(8 -4 min)
= (3 inches)/(4 min) = 3/4 inches/minute
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<h3>b.</h3>
Similarly, ...
change in elevation per minute = (3 -7 1/2 inches)/(18 -14 min)
= (-4 1/2 inches)/(4 min) = -1 1/8 inches/minute
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<h3>c.</h3>
We know that 3/4 is more than -1 1/8, but when we talk about the "fastest rate of change", we're generally interested in the magnitude--the value without the sign. That means we understand a rate of change of -1 1/8 inches per minute to be "faster" than a rate of change of 3/4 inches per minute.
The rate of change from Part B is fastest. 1 1/8 inches per minute is more than 3/4 inches per minute.
Answer:
So, area of quadrilateral ABCD = (½ × AC × BE) + (½ × AC × DF) We can calculate the area of different types of quadrilaterals by using the given formula. For the quadrilateral ABCD, if we use centimeter as the unit of measurement, the unit of measure for the area will be cm2 .
I hope it's helpful!
A triangle with an angle >90 is an obtuse triangle the other two remaining angles would be acute <90
total degrees must = 180
That's right. The answer is not zero. In fact, there's no answer at all,
simply because there's no question. In math in general, division by zero
is "not permitted", and if people start talking about it, the answer is called
"indeterminate" ... that means vague, and can't be determined.
Division is repeated subtraction. 6 divided by 2 means: "How many times
can you take 2 away from 6 before the 6 is all used up and gone ?", and the
answer is: 3 times and then it's gone.
So the question is really asking: "How many times can you take zero away
from 5 before the 5 is all used up and gone ?". There's no answer, because
no matter how many times you take away zero, you can never use up the 5 .
One more comment on the subject: Save your question marks. One is plenty.
