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Butoxors [25]
3 years ago
6

A function, f(x) is defined by f(x) = -x^2 + 0.5x -5. what is the value of f(-5)

Mathematics
1 answer:
Andru [333]3 years ago
6 0
To solve this, you substitute -5 everywhere you see x so the expression would be...

- (-5)^2 + .5(-5) - 5 ----> Simplify with order or operations
P arenthesis
E xponents
M ultiplication
D ivision
A ddition
S ubtraction

- (25) - 2.5 - 5

-25 - 2.5 - 5

-32.5
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46, 60, 83, 69, 15, 31, 61, 48, 46, 91<br>Mode:<br>Median:<br>Ranges:<br>Mean:<br>​
maria [59]

Pls, Mark as Brainliest. :-)

Answer:

Mode:46

Median:47

Ranges:76

Mean:68.75

Hope this helps.

Step-by-step explanation:

3 0
3 years ago
I need help I’m struggling
andrew-mc [135]
All you need for a point to be left unchanged is it being on the line of reflection. (Generally speaking)

The first one is wrong cause you can have a line of reflection anywhere. If the line is horizontal ( x axis) then the slope would be zero. Whereas a line on y axis would be an undefined slope. There are also diagonal lines of reflections which have slopes

I am pretty sure the second one would be correct because, as previously stated, all the line needs to stay in the same place is it being on the line of reflection.

Again, lines of reflection do not have a set slope, a diagonal line of reflection going like / on the chart through the axis could have a slope of one, but it is not needed for the point to remain in the same place

The point does not necessarily need to be on the origin, it can be anywhere on the line of reflection, and if the line of reflection does not pass through the origin, a point on the origin would be moved in a reflection.

I hope this makes sense and helps you out a bit... have a good day
8 0
3 years ago
The function y=f(x) is graphed below. What is the average rate of change of the function f(x) on the interval -6&lt;= x &lt;= 6?
VMariaS [17]

Answer:

- 1

Step-by-step explanation:

The average rate of change of f(x) in the closed interval [ a, b ] is

\frac{f(b)-f(a)}{b-a}

Here [ a, b ] = [ - 6, 6 ]

From the graph

f(b) = f(6) = - 2

f(a) = f(- 6) = 10 , thus

average rate of change = \frac{-2-10}{6-(-6)} = \frac{-12}{12} = - 1

4 0
3 years ago
A spherical ball has a radius of 9 feet,What is the volume, in cubic feet, of the ball? Round your answer to the nearest hundred
Illusion [34]

Answer:

972pi

Step-by-step explanation

Equation of sphere volume = 4/3pir^3

4/3*9^3*pi = 972pi

6 0
3 years ago
What is the difference between the points (-1,2) and (2,6)
wolverine [178]
The first one is negative 1
3 0
4 years ago
Read 2 more answers
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