Answer:
<h2>187 </h2>
Step-by-step explanation:

To find f(-9) , substitute the value of x that's - 9 into f (x). That is for every x in f(x) replace it with - 9
We have

We have the final answer as
<h3>187</h3>
Hope this helps you
You can only add exponents if you are multiplying two of the same variable together. For example,

You take them away if you are dividing.
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In a polynomial equation, you can add together two of the same variable if they have the same exponent
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Or you can take them away in a similar fashion,
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But you cannot add two (or more) different exponents,
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(it does not get any simpler)
I hope this has answered your question, if not, leave a comment and I'll update the answer.
Given that the diameter of a human hair 
Given that the diameter of a spider's silk 
Now we have to find how much greater is the diameter of a human hair than the diameter of a spider's silk.
To find that we just need to subtract the given numbers.

Since powers are not same so let's make them equal

now we can easily subtract the coefficients that is 3 from 9



Hence final answer is
.
Answer:
b=73a-121
Step-by-step explanation:
a-b/12=11-6a
Let's start solving
Cross multiply
a-b=12(11-6a)
a-b=121-72a
Collect like terms
a+72a=121+b
73a=121+b
Substrate 121 from both sides
73a-121=b
Therefore b=73a-121
Which means that b has been made the subject of formula
Answer:
D) 88 degrees
Step-by-step explanation:
Angle ABC is 1/2Arc AC (Inscribed angle theorem)