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8090 [49]
3 years ago
13

What expression is equivalent to (fg) (5)

Mathematics
2 answers:
Alexandra [31]3 years ago
8 0
I am answering with the best knowledge that i have based on what I already learned last year, so the f(5)* g(5) is the one expression that is equivalent to(fg) (5)
Elena L [17]3 years ago
4 0

Answer:  The answer is f(g(5)).


Step-by-step explanation:  We are given to write the expression which is equivalent to (fg)(5), where f(x) and g(x) are two functions.

We write the expression as follows:

(fg)(x) = f(g(x)), so that (fg)(5) = f(g(5)). That is, first we will evaluate g(5), whatever the value we get, we will find f of that value. to reach at our result.

For example,

if f(x) = x+3, and g(x) =  x²+1, then

(fg)(x) = f(g(x)) = f(x²+1) = x²+1+3 = x²+4.

Hence, (fg)(4) = f(g(4)) = f(17) = 17 + 3 = 20.

Thus, (fg)(5) = f(g(5)).


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Six times Jason's collection of books and one-third of Nathan's collection add up to 134 books. One-third of Jason's collection
siniylev [52]
6j+\frac{1}{3}n=134

\frac{1}{3} j+n=31 you multiply this by 18

6j+18n=558
6j+1/3*n=134
___________(-)

53n/3=424 => 53n=1272 => n=24

You put n in the first equation:
6j+8=134
6j=126 => j=21

Final answer:  Nathan has 24 books and Jason 21.
3 0
3 years ago
Given x=-3, y=6, and z=-4<br> -15+(-x)+y=
Alexus [3.1K]

Answer:

-6

Step-by-step explanation:

We are given x=- 3 , y= 6 and z= -4.

We are also given the expression:

-15 + (-x) +y

Substitute -3 in for x and 6 in for y.

-15 + (- -3) + 6

2 negative signs creates a positive sign

-15 + (+3) +6

-15 + 3+ 6

Add -15 and 3.

(-15+3) +6

-12 +6

Add -12 and 6.  

-6

-15+(-x)+y evaluated at x= -3 and y=6 is equal to -6.

5 0
3 years ago
CAN SOMEONE PLSSSSS ANSWER BOTH OF THESE QUESTIONS<br> I WILL MARK BRAINLIEST
Margaret [11]

Answer: B and C

Step-by-step explanation:

404 + 50 + 50 = 504

you are buying  144 magazines total

504/144 = cost of one magazine

cost of one = 3.50

you are paying $60 a year for 12 years

60 x 12 = 720

720/144 = 5

5 - 3.50 = 1.50

2.

120x + 180x = 1080

300x = 1080

x = 1080/300

x = 3.6

3.6 x 60 = 216

3 0
2 years ago
A sidewalk is built 12 bricks wide by laying each brick side by side.how many inches wide is this sidewalk is each brick measure
yaroslaw [1]

To solve for the width simply multiply the two numbers:

width of sidewalk = 12 * (3 7/8)

 

Where 3 7/8 = 31/8

 

so calculating,

width of sidewalk = 12 * (31 / 8)

<span>width of sidewalk = 46.5 inches</span>

5 0
3 years ago
Read 2 more answers
The area of a circle is 100 square miles. What is the diameter?
adell [148]

Answer:

The diameter of a circle with an area of 100 square miles is 20/√π miles.

Step-by-step explanation:

Area =100 = πr^2.

diameter = d = 2r.

100 = πr^2.

100/π = r^2.

√(100/π) = r.

10/√π = r.

d = 2r.

d = 2 * 10/√π.

d = 20/√π

5 0
3 years ago
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