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Vika [28.1K]
3 years ago
15

If f(x) = 1/2x^2 - (1/4x +3), what is the value of f(8)?

Mathematics
2 answers:
Mekhanik [1.2K]3 years ago
4 0

Answer:

9

Step-by-step explanation:

noname [10]3 years ago
4 0

Answer:

27

Step-by-step explanation:

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Geometry math question no Guessing and Please show work
WITCHER [35]

Answer: Choice A) 15 feet

=====================================

x = length of fourth side in quadrilateral ABCD

Have a look at the attached image I've posted. I made a chart that lines up the side lengths from largest to smallest. Note how the first two items in the bottom row are blank. We don't know these values and we don't need to find out in order to find x.

Based on the last two columns of that table, we can form the proportion below, which is then used to isolate x.

30/12 = x/6

30*6 = 12*x ... cross multiply

180 = 12*x

12*x = 180

x = 180/12 ... divide both sides by 12

x = 15

5 0
3 years ago
More people leave Anytown, AL each year than move into it. The population over the past 20 years is shown in the table. Use tech
Phoenix [80]

The equation that models the exponential decline is y = 46348587109809610(0.9861)ˣ if the population over the past 20 years is provided.

<h3>What is the line of best fit?</h3>

A mathematical notion called the line of the best fit connects points spread throughout a graph. It's a type of linear regression that uses scatter data to figure out the best way to define the dots' relationship.

Let's suppose the equation that models the exponential decline is:

\rm y = a(b^x)

From the data given, we can calculate the value of a and b:

a = 46348587109809610

b = 0.9861

y = 46348587109809610(0.9861)ˣ

Thus, the equation that models the exponential decline is y = 46348587109809610(0.9861)ˣ if the population over the past 20 years is provided.

Learn more about the line of best fit here:

brainly.com/question/14279419

#SPJ1

6 0
2 years ago
WILL MARK BRAINLIEST<br><br> What is the value of x?
fiasKO [112]

Answer:

1?

Step-by-step explanation:

3 0
3 years ago
Use the functions f(x) = 4x − 5 and g(x) = 3x + 9 to complete the function operations listed below.
JulijaS [17]
A:

(f+g)(x)=f(x)+g(x)

(f+g)(x)=4x-5+3x+9

(f+g)(x)=7x+4

B:

(f•g)(x)=f(x)•g(x)

(f•g)(x)=(4x-5)(3x+9)

(f•g)(x)=12x^2-15x+36x-45

(f•g)(x)=12x^2+21x-45

C:

(f○g)(x)=f(g(x))

(f○g)(x)=4(3x+9)-5

(f○g)(x)=12x+36-5

(f○g)(x)=12x+31


6 0
3 years ago
Alan sells custom made kites online. He makes a flat profit of $20 per kite, but he pays $20 per day for his website. Write an i
Afina-wow [57]
To pay website Alen needs to make 1 kite a day that is 7 kites.
To earn at least 900$ per week he needs to make 900$/20$=45kites
900/20+7=52 kites. Alen need to make at least 52 kites a week to earn at least 900$.
8 0
3 years ago
Read 2 more answers
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