Answer:
-1/2
Step-by-step explanation:
divide -3/4 by 3/2, the answer is -1/2.
Answer: It is C because if you organize the equation numerically the equation is 18x^3+30x^2+12x+10. So it is 18.
Answer:
8 represents the temperature at the mid night of Friday was 8°.
Step-by-step explanation:
The weather service measures the temperature, T, every hour, h, beginning at midnight of each 24-hour period.
If on Friday, the temperature was modeled by T = 43h + 8.
That means at h =0 i.e. at the midnight the temperature T is given by 8.
So, 8 represents the temperature at the midnight of Friday was 8°. (Answer)
Answer:
Answer ? = 9
Step-by-step explanation:
the commutative property of addition just means that when adding (say counting numbers) you can reverse the order. It won't matter how you do the addition. For example
5 + 9 = 9 + 5
Some number systems don't like that very much. So the number you put in for the question mark is 9.
When we say that a function is continuous between x = -3 and x = 0 it means that it exists for all values of x in between -3 and 0. Let's take a look at each choice individually:
A: f(x) = (-x + 1)/(x + 2)
Now we don't actually need to know what the graph of this function looks like to see which values it is continuous for, instead we should look at which values of x will make this function undefined - in this case that would be x = -2. The reasoning behind this is that a number divided by 0 would be undefined, so when we search for which value of x would make the denominator of the equation 0, we get:
x + 2 = 0
x = -2
Since x = -2 is within the interval [-3, 0] we cannot say the function is continuous over this interval
B: f(x) = -2/(x + 1)
Using the same method as above we get:
x + 1 = 0
x = -1
x = -1 is again within the interval [-3, 0] and so the function is not continuous within this interval
C: f(x) = 3x/(x - 2)
x - 2 = 0
x = 2
x = 2 is outside the interval of [-3, 0] and so the function is continuous within this interval and C is the correct answer.
Just for the sake of it however we can look at D as well:
D: f(x) = 1/(2x + 1)
2x + 1 = 0
x = -1/2
-1/2 is within [-3, 0] and so D is not continuous over this interval