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3 years ago

Let f(x) = 2x + 4 and g(x) = 6x + 5. Find f.g.

Mathematics

1 answer:

seropon [69]3 years ago

4 0

Step-by-step explanation:

To find fg(x), you first open up the g.

This will make f(6x+5). How you substitute 6x + 5 for the x in the f.

This means you get 2(6x+5)+4

Which equals 12x+14

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Joseph rings up an item that costs $960. After sales tax, the total is $1,056. What is the sales tax percentage?

Verizon [17]

1056/960-1=10%
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7 0

3 years ago

A simple random sample of 5 observations from a population containing 400 elements was taken, and the following values were obta

Strike441 [17]

Answer: 18

Step-by-step explanation:

The<u> sample mean</u> is the best point estimate of the population mean .

Given : A simple random sample of 5 observations from a population containing 400 elements was taken, and the following values were obtained (12 18 19 20 21).

Then , the sample mean = $\dfrac{\text{Sum of observations}}{\text{Number of observations}}$

sample mean $=\dfrac{12 +18 +19+ 20+ 21}{5}=18$

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3 0

3 years ago

Which is the value of this expression when m=3 and n=-5?

stiv31 [10]

Answer:

1/8

Step-by-step explanation:

doing math to get the right answer your welcome

3 0

3 years ago

Please help I don’t understand

Olegator [25]

Answer:

They are not similar.

Step-by-step explanation:

To find whether or not they are similar, set them up as a proportion.

(2.4/5.2) = (8/13)

Now cross multiply.

2.4*13 = 5.2*8

31.2 = 41.6

Since they are not exact, they are not similar.

8 0

4 years ago

Can someone help me out plz ??!

scoray [572]

Answer:

≈ 62.8

Step-by-step explanation:

Using the equal ratios of

$\frac{areaof circle}{areaofsector}$ = $\frac{circleangle}{sectorangle}$ , that is

$\frac{100\pi }{sector}$ = $\frac{2\pi }{\frac{2\pi }{5} }$ = 5, thus

5 × sector = 100π ( divide both sides by 5 )

sector = 20π = 20 × 3.14 = 62.8 units²

7 0

4 years ago