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slamgirl [31]
3 years ago
9

Given f(x) = 3x-4 and g(x)= -2x+7 evaluate. PLEASE HELP.

Mathematics
2 answers:
Roman55 [17]3 years ago
8 0

see the attachments below for the steps :)

The simplified expression is as follows:

d(-3x^2 + 9x - 14)

Softa [21]3 years ago
4 0

Answer:

-21

Step-by-step explanation:

The given functions are

f(x)=3x-4

g(x)=-2x+7

We need to find the value of (g\circ f)(6).

The substitute x=6 in f(x), to find the value f(6).

f(6)=3(6)-4=18-4=14

The substitute x=14 in g(x), to find the value g(14).

g(14)=-2(14)+7=-28+7=-21

According to the composition of functions,

(g\circ f)(x)=g(f(x))

Substitute x=6 in the above formula.

(g\circ f)(6)=g(f(6))

(g\circ f)(6)=g(14)

(g\circ f)(6)=-21

Therefore the value of (g\circ f)(6) is -21.

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Step-by-step explanation:

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More level of confidence more width of the interval.

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So, If a 95% confidence interval had been constructed instead of 90% the width of the interval would have been<u> increased.</u>

6 0
3 years ago
Pls help this is due today
Ira Lisetskai [31]

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8x8=64

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7 0
2 years ago
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aliina [53]

Answer:

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Step-by-step explanation:

Please try to do a better job of formatting your next question.  Thanks.

110 in       1 ft

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4 0
3 years ago
Y<br> 45°<br> 30°<br> N<br> 17<br> I need help pls
melisa1 [442]

Answer:

x=29.4

Step-by-step explanation:

To help find the sides of a triangle, I use SOHCAHTOA.

SOH - CAH - TOA

S=O/H (Sine=\frac{opposite}{hypotenuse} )

C=A/H (Cosine=\frac{adjacent}{hypotenuse} )

T=O/A (Tangent =\frac{opposite}{adjacent} )

Let's find x first. We know 2 parts of the triangle: the adjacent leg, and the angle that is opposite of that.

So it would be tangent (tan).

opposite = 17

adjacent = 30°

Plug these numbers into the calculator and you should get your answer.

\frac{17}{tan(30)} = 29.44486372...

x=29.4

Try to do <em>y</em> on your own and let me know if you have any questions!

Also correct me if I'm wrong on anything.

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4 0
3 years ago
Serial numbers for a product are to be made using 3 letters followed by 4 digits. The letters are to be taken from the first let
Tpy6a [65]

Answer:

30,240 ways,  if I am restricted to using A, B, and C for letters

Step-by-step explanation:

This uses Combinatorics from Discrete Math.

so.

3 letters  and 4 digits.

26 letters from alphabet, but you want to choose first letters.  no repeats...

Does this mean only letters A, B, and C ?

digits from 10 digits...

I imagine  7 empty slots , and the number of ways they occur together is by the product of the number of choices each box has.

3*2*1  *  10*9*8*7 = 6  * 5040  = 30,240 ways

3 0
3 years ago
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