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PolarNik [594]
3 years ago
15

How would I find the Max/min of this function f(x) = 2x squared +18x +16

Mathematics
1 answer:
slamgirl [31]3 years ago
7 0
F(x)=2x²+18x+16
1) we have to calculate the first derived.

f´(x)=4x+18

2) Now, we equalize the first derived to "0" and find out the value of "x"
4x+18=0
4x=-18
x=-18/4=-4.5

3)we calculate the second derived
f´´(x)=4>0  ⇒we have a minimum at x=-4.5

4) Now we calculate the value of "y".
f(-4.5)=2(-4.5)²+18(-4.5)+16=40.5-81+16=-24.5

Therefore; Exist a minimum at (-4.5 , -24.5)
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Decrease 248 by 30%
Snowcat [4.5K]
Okay this equation really says is what is 30% of 248.

So, lets convert 30% to a fraction, 3/10 which is easier to work with.

All you have to do now is get out a calculator and do 248 *3/10 (or .3) and get 74.4

So subtract 74.4 and get

173.6
8 0
3 years ago
What is the greatest number of teams can be formed that have the same amount of boys and girls on each team if they have 54 girl
elena55 [62]

The greatest number of teams can be formed that have the same amount of boys and girls on each team is 6

<em><u>Solution:</u></em>

Given that there are 54 girls and 84 boys

We have to find the greatest number of teams can be formed that have the same amount of boys and girls on each team

So we have to find the greatest common factor of 54 and 84

When we find all the factors of two or more numbers, and some factors are the same ("common"), then the largest of those common factors is the Greatest Common Factor

<em><u>Let us find the factors of 54 and 84</u></em>

The factors of 54 are: 1, 2, 3, 6, 9, 18, 27, 54

The factors of 84 are: 1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84

In the above factors list, 6 is the greatest common factor

Then the greatest common factor is 6

So the greatest number of teams can be formed that have the same amount of boys and girls on each team is 6

7 0
3 years ago
What Is The<br> Answer .?
mamaluj [8]

p + 9 = 25
7 0
3 years ago
Find the mode of the following data set.<br><br><br><br><br><br> a. 31<br> b. 3 and 4<br> c. 1
kati45 [8]

Answer:the mode is b

Step-by-step explanation:

B

4 0
3 years ago
Read 2 more answers
F(x)= x + 3 find f(-5)​
sesenic [268]

Answer:

f(-5) = -2

Step-by-step explanation:

f(-5) = -5 + 3

       = -2

*Have to replace x with -5 and then solve

3 0
3 years ago
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