Answer:
-108
Step-by-step explanation:
36x - 8y² when x = 3 and y = -6
8x=108
=8x(-6)(-6)
-6×(-6)=36
=8x36
=288
108
-<u> 288</u>
-108
Answer:
B. f(x) = 7000x + 4000
Step-by-step explanation:
To find the best function for this situation, we need to list down all the things that we know first.
We currently have:
35000 total seats
4000 fans
11000 fans after an hour
So that means that after an hour, we had:
11000 fans - 4000 fans = 7000 fans
At one o'clock we had 7000 more fans arrive.
So we can assume that:
x = number of hours
f(x) = 7000x + 4000 will be the best function to use to find out if there that 90% of the stadium will be filled by game time.
To test this function let's use it:
f(1) = 7000(1) + 4000
f(1) = 11000
This is after hour 1.
Now let's see after hour 4 since the game starts at 4.
f(4) = 7000(4) + 4000
f(4) = 28000 + 4000
f(4) = 32000
So 90% of 35000 is:
35000 x 0.90 = 31500
By game time we have 32000 fans which is above 90% of the total number of seats.
So the stadium owners estimate is correct.
By definition we have that the average rate of change of the function is given by:
Substituting values we have:
Rewriting we have:
Answer:
If x represents time, the average rate of change of the function f(x) in the first two seconds is 25.
<span><span>adding two three digit numbers (for example 529 + 733) involves several steps.Place one number above the other so that the hundreds, tens and ones places are lined up. Draw a line under the bottom number.<span><span>
529
<u>733</u>
</span>
</span>Add the ones place digits (9 + 3 = 12). This number is larger than 10 so place a one above the tens place column and place the two below the line in the ones place column.<span><span>
1
529
<u>733</u>
2</span>
</span>Add the tens place digits (1 + 2 + 3 = 6) and place the answer below the line and in the tens place column.<span>
529
<u>733</u>
62</span>Add the numbers in the hundreds place column (5 + 7 = 12) and place the 2 below the line and before the other number below the line. Place the 1 from the twelve above the thousands place column.<span>
1
529
<u> 733</u>
262</span>The thousands place column only has a 1 in it which should be placed below the line in the thousands place column.<span>
529
<u> 733</u>
1262</span></span>
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