To complete the square for the equation X^2 + 16X + __ = 18 + __, we need to add 64 to both sides to get the equation X^2 + 16X + 64 = 18 + 64.
To complete the square for the given quadratic equation, we need to add a specific value to both sides of the equation. That specific value is the square of half the coefficient of the X term. In this case, the X term's coefficient is 16, so we need to take half of 16 (which is 8) and square it (which is 64).
So, the number to be added to both sides of the equation is 64.
The completed square equation then becomes: X^2 + 16X + 64 = 18 + 64.
Learn more about Completing the square here:
#SPJ2
The probable question may be:
What number needs to be added to both sides of the equation in order to complete the square?
X^2+16X+____=18+___
Answer:
16
Step-by-step explanation:
Given x^2 + 16x = 18. Complete the square:
Take half of the coefficient of x (in other words, take half of 16) and square the result: we get 8^2 = 64.
Add 64, and then subtract 64 from x^2 + 16x + 64 = 18 + 64
Then (x + 8)^2 = 82. From this point on it's easy to find the roots, but we were not asked to do so.
The desired number is 64; note that it is (16/2)^2.
5
10.8
36
Answer: 5
Step-by-step explanation: Your answer is found by calculating the mean of 59, 80, 95, 88, 93. then show what the outlier would do if it was added, then after removing the outlier of 59, calculate how far the other numbers are from the mean. then divide your answer by how many numbers there are to get 5. otherwise said:
(59,80,95,88,93)-59=(80+95+88+93)*/. 4=89, then 80,95,88,93=MAD= 89-80,95,88,93=(9,4, 1, 4)*/.4=4.5 ~ 5
Answer:
(D) 3
Step-by-step explanation:
I just took the test.
Your welcome and don't forget to press that THANKS button!
Answer:
D, 4
Step-by-step explanation:
The graph crosses the x-axis 4 different times