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Akimi4 [234]
3 years ago
14

Let f(x) = 2x+3 and g(x) = x2

Mathematics
1 answer:
jek_recluse [69]3 years ago
5 0
F ( x ) = 2 x + 3
g ( x ) = x²
Part 1 : f ( g ( x )) = f ( x² ) = 2 x² + 3
Part 2 : g ( f ( x ) ) = g ( 2 x + 3 ) = ( 2 x + 3 )² = 4 x² + 12 x + 9
Part 3:
Both parts represent the composition of functions. In the first part we are plugging function x² into f ( x ) and in the second part we are plugging
2 x + 3 into g ( x ). 
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Write an explicit formula for the following sequences
Kobotan [32]
1) subtract by negative odd numbers

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3 years ago
Hector is flying a kite. He has let out 86 feet of string and is holding it 4 feet off the ground. If the string is at an angle
Leto [7]

Answer:

h = 61.83 feet

Step-by-step explanation:

length of string from Hector to kite = c = 86 feet.

and 4 feet off the ground.

angle A = 42° 15' 30"

req'd:  how high is the kite?

angle A = 42° + 15' (1° / 60') + 30"(1° / 3600'')

angle A = 42.26

to get the side a (height of kite) 4 feet above ground: use Sin(A) = opp / hyp

Sin(A) = a / c

Sin(42.26) = a / 86

a = Sin(42.26) * 86

a = 57.83 feet

therefore, the height of the kite from the ground = h = 57.83 + 4

h = 61.83 feet

6 0
4 years ago
Which complex number has an absolute value of 5?<br> –3 + 4i<br> 2 + 3i<br> 7 – 2i<br> 9 + 4i
zhenek [66]

Answer: –3 + 4i

Step-by-step explanation:

7 0
4 years ago
PLEASE HELP!!
Scrat [10]

Answer:

The first one B(1and 2). The second is D( 5/2)

Step-by-step explanation:

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5 0
3 years ago
I really need help with this question I’m taking a test it’s urgent !!
dimaraw [331]

Answer:

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Step-by-step explanation:

QUICK

9/15 = 6/x

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8 0
3 years ago
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