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SSSSS [86.1K]
3 years ago
12

Find and simplify 4f(x) = x^2/x-9

Mathematics
1 answer:
Andreyy893 years ago
8 0
We have:
4f(x) = x^2/(x-9)

To get f(x), we will simply divide both sides by 4:
f(x) = [x^2/(x-9)] / 4

This gives f(x) in the simplest form as follows:
f(x) = 4x^2 / x-9
You might be interested in
The temperature dropped 5 degrees each hour for 7 h. Use an integer to represent the total change in temperature.
Juli2301 [7.4K]

Answer:-35

Step-by-step explanation: 7x-5=-35, and an integer is a number that isn't a fraction

5 0
3 years ago
Read 2 more answers
If ΔJKL~ΔMKN, find the value of x.
Aleksandr-060686 [28]

Answer:

x = 14

Step-by-step explanation:

Since the triangles are similar, then the ratios of corresponding sides are equal, that is

\frac{KL}{KN} = \frac{JL}{MN} , substitute values

\frac{32}{12} = \frac{3x-2}{x+1} ( cross- multiply )

12(3x - 2) = 32(x + 1) ← distribute parenthesis on both sides

36x - 24 = 32x + 32 ( subtract 32x from both sides )

4x - 24 = 32 ( add 24 to both sides )

4x = 56 ( divide both sides by 4 )

x = 14

4 0
3 years ago
How do i solve tis in need help <br> slope=2/7 y-intercept=-4
Thepotemich [5.8K]

Answer:

y=2/7x-4

Step-by-step explanation:

Write in Slope intercept form

y=mx+b

m = slope

b = y intercept

x = x intercept

y = (0,-4)

So,

y = 2/7x+(-4)   substitute

y = 2/7x-4

5 0
3 years ago
In a bread recipe 4 cups of flour are used for 12 ounces of water. How many cups of flour are needed for 30 ounces of water?
siniylev [52]
In this problem, you will use ratios
The ratios you are using are:
4cups/12 oz = x cups/30 oz
Cross multiply

120=12x
x=10
He will need 10 cups of flour

Hope this helps!
Branliest?

5 0
4 years ago
For the following function, one zero is given. Find all other zeros.<br><br> f(x)=x3-7x2+17x-15; 2-i
ratelena [41]

Answer:

1,-3,-5

Step-by-step explanation:

Given:

f(x)=x^3+7x^2+7x-15

Finding all the possible rational zeros of f(x)

p= ±1,±3,±5,±15 (factors of coefficient of last term)

q=±1(factors of coefficient of leading term)

p/q=±1,±3,±5,±15

Now finding the rational zeros using rational root theorem

f(p/q)

f(1)=1+7+7-15

  =0

f(-1)= -1 +7-7-15

    = -16

f(3)=27+7(9)+21-15

   =96

f(-3)= (-3)^3+7(-3)^2+7(-3)-15

    = 0

f(5)=5^3+7(5)^2+7(5)-15

   =320

f(-5)=(-5)^3+7(-5)^2+7(-5)-15

     =0    

f(15)=(15)^3+7(15)^2+7(15)-15

    =5040

f(-15)=(-15)^3+7(-15)^2+7(-15)-15

     =-1920

Hence the rational roots are 1,-3,-5 !

6 0
3 years ago
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