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Vinil7 [7]
3 years ago
6

Let f(x) = x2 - 5 and g(x) = 3x2. Find g(f(x))

Mathematics
1 answer:
m_a_m_a [10]3 years ago
3 0

Answer:

Step-by-step explanation:

to find composite function:

put the inner funtion into the outer function

inner func.=x^2-5

outer= 3x^2

hence,

g(f(x))= 3(x^2-5)^2

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Help! <br> Find the value of X and simplify completely.
Svetach [21]

Answer:

x = 8√5

Step-by-step explanation:

In the figure attached, there are three right angle triangles.

So, by Pythagoras theorem,

y²+ 4² = z²

y² + 16 = z²------(1)

Similarly x² = 16² + y²--------(2)

and (16 + 4)² = x² + z²

20² = x² + z²-------(3)

Now we put the value of z² from equation 1 to equation 3

20² = x² + y² + 16

x² + y² = 400 - 16

x² + y² = 384

y² = 384 - x²------(4)

Now we put the value of y² from equation 4 to equation 2

x² = 16² + 384 - x²

2x² = 256 + 384

2x² = 640

x² = 320

x = 8√5

Therefore x = 8√5 will be the answer.

8 0
3 years ago
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A
DochEvi [55]

Answer:

C

Step-by-step explanation:

7 0
3 years ago
What is the explicit formula for the sequence: 18, 11, 4, -3?
kumpel [21]

Answer:

Step-by-step explanation:

c.d. d=11-18=4-11=-7

y=18+(n-1)(-7)

or y=18-7n+7

or y=25-7n

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7 0
3 years ago
Based on the graph, what are the approximate solutions to the equation −3x + 8 = (0.25)x?
storchak [24]

Let

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in this problem

f(x)=g(x)

so

3x+8=0.25^{x}

using a graph tool

the solution is the intersection of both graphs

see the attached figure

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6 0
4 years ago
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Verdich [7]

Answer:

y=2x-4

Step-by-step explanation:

5 0
3 years ago
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