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Dennis_Churaev [7]
2 years ago
12

Find the value of f(9) y = f(x)

Mathematics
1 answer:
goblinko [34]2 years ago
8 0

f(9) is the x value, find where the line is in the y direction at x = 9

The line crosses y = 3 at x = 9

Answer:

f(9) = 3

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Adam bought granola bars at the store.
ehidna [41]
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3 0
3 years ago
How do I simplify the following to "a+bi" form: (1+2i)^3
damaskus [11]

Answer:

Expand it.

(1+2i)^3 is equal to (1+2i)(1+2i)(1+2i).

Multiply everything out (being sure to multiply <em>every</em> term. (1+2i) * (1+2i) = 1+2i+2i+4i^2.

i is the square root of negative one, so i^2 is just -1. 1+2i+2i-4 is what you get from the first two, so now simplify that:

1-4 + 2i+2i = (-3+4i) and now multiply that by (1+2i):

(-3+4i) * (1+2i) = -3 - 6i +4i +8i^2.

Simplify again, and the answer is: -11-2i

Step-by-step explanation:

I hope this helps - really my only tip is don't spend time thinking about what i is, that just hurts your brain. Just remember that i^2 is equal to negative one, and treat it like regular multiplication and you will be fine.

7 0
1 year ago
15PTS PLEASE HELP ASAP!<br> (dont write random answers pls)
Anna35 [415]

Answer:

c

Step-by-step explanation:

3 0
3 years ago
I cant remember how to do this ​
Scrat [10]

Answer:

z = 80°

Step-by-step explanation:

ABCD ~ FECG

∠F ≅ ∠A = z

∠F = 360-100-60-120=80

z = 80°

3 0
3 years ago
What is the answer i really need help (−3)3 + (5 − 2)4
Katarina [22]
The answer to your question is 3
Reasons : -9+ 3•4= -9+12= 3.
8 0
3 years ago
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