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4 years ago

What is the relative maximum and minimum of the function?

1 answer:

8 0

We equate the derivative of the function to 0 to find the x-value at its minimum:
f'(x) = 4x + 28
0 = 4x + 28
x = -7
Now, we put this value into the original equation to find the minimum value:
f(-7) = -106
The function has a positive slope so it will increase. Thus, the range will be y > -106
The answer is B

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In the morning, when James went to school it was warm outside. By the time he went to bed that evening the temperature had dropp

Nikolay [14]

Answer: The number can be used to express the change in temperature= -14

Step-by-step explanation:

Given: The temperature in evening dropped by $14^{\circ}F$ .

Thus, the change in temperature = $14^{\circ}F$

Since the temperature in evening is dropped or decreased , thus in integers the change in temperature = $-14^{\circ}F$

Therefore, the number can be used to express the change in temperature= -14

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3 years ago

Help help math math math

natka813 [3]

Answer:

Yes, this is a function

Step-by-step explanation:

You know this because it passes the vertical line test.

I hope this helps!

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2 years ago

Pierre stands on level ground at the point P, 5 metres from O.

GenaCL600 [577]

So hmm notice the picture below

thus $\bf \cfrac{4.24}{x}=\cfrac{2x+5}{2x}\implies 8.48x=2x^2+5x\implies 8.48x-5x=2x^2
\\\\\\
3.48x=2x^2\implies 0=2x^2-3.48x\implies 0=x(2x-3.48)
\\\\\\

\begin{cases}
0=x\\
----------\\
0=2x-3.48\\
3.48=2x\\\\
\cfrac{3.48}{2}=x\\\\
1.74=x
\end{cases}$

so, is clearly not 0, so it has to be 1.74

6 0

3 years ago

Calculate the slope of a line with a run of 3 and a rise of 9.

Mrrafil [7]

Answer:

<u>Slope = 3</u>

Step-by-step explanation:

Slope is calculated as the "Rise/Run" of a straight line. The Rise is the change in the value of y, or the amount y changes per change in x. Run is the change in the x value. A line with a run of 3 and a rise of 9 is calculated as:

Rise/Run = 9/3 or 3

This means that the value of y will increase by 3 for every increase of 1 in the value of 3.

Slope in "m" in the slope-intercept form of a straight line equation: y = mx + b

The line y = 3x + 2 tells us the it has a slope of 3 and intercepts the y axis at x = 2.

Example points (y = 3x + 2)

(0,2)

(1,5)

(4,14)

Note that y changes by 12 when x changes by 4. Rise/Run = 12/4 or 3.

4 0

2 years ago

Justin traveled 56.8 miles each day for the past 7 days. How many miles did he travel in all?

creativ13 [48]

56.8 * 7 = 397.6

He travel 397.6 miles in all.

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3 years ago

Read 2 more answers