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4 years ago

What does the notation f(2) mean? multiply f by 2 the output (y-value) when x = 2 the value of x when the output is 2

Mathematics

2 answers:

olga nikolaevna [1]4 years ago

5 0

Answer:

B. the output (y-value) when x = 2

andrezito [222]4 years ago

3 0

f(2) means x equals 2. its saying like 2 is your x value. Like for example

f(4)=x+6

you plug in your x value and solve.

f(4)=4+6

f(X)=10

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The heights of American men are normally distributed. If a random sample of American men is taken and the confidence interval is

solmaris [256]

Answer:

Step-by-step explanation:

Given the confidence interval of the heights of american heights given as (65.3,73.7);

Lower confidence interval L = 65.3 and Upper confidence interval U = 73.7

Sample mean will be the average of both confidence interval . This is expressed mathematically as $\overline x = \frac{L+U}{2}$

$\overline x = \frac{65.3+73.7}{2}\\\overline x = \frac{139}{2}\\\overline x = 69.5$

Hence, the sample mean is 69.5

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3 years ago

The surface area (SA) of a cube with a as the length of each of its sides is given by the formula SA=6a^2 If the surface area is

slava [35]

So to rewrite it so that we can find the side, we just need to isolate the a variable.

$SA=6a^2$

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3 0

3 years ago

Read 2 more answers

A team played 38 matched in a football league. They won 22 matches and Lost nine matches. The rest of the matches were draws. Th

pychu [463]

Answer:

The answer is 73.

Step-by-step explanation:

To find the total number of points for a win, you would do 3*22 which equals 66.

Then the number of draws, which is 7 draws, has one point per draw, so it would be 7.

Add 66 by 7=73

Hope this helps!

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3 years ago

Rachel is 10 years older than her sister, Renee. In six years from now, the sum of their ages will be 40. How old is each girl?

Arisa [49]

Answer: I say the answer is 20 years old, 30 years old

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2 years ago

Fencing How much fencing is required to enclose a circular garden whose radius is 28 m? Use 3.14 for . About nothing m of fenci

Andru [333]

Answer:

175.84 m

Step-by-step explanation:

Given that:

A circular garden which has a radius of 28 m.

$\pi$ = 3.14

To find:

The fencing required to enclose the circular garden ?

Solution:

Here, we are given a circle and its radius.

We are required to find the perimeter of the circle in order to find the fencing required to enclose the circular garden..

Formula for finding the perimeter of a circle is:

Perimeter = $2\pi r$

where $r$ is the radius of the circle.

Using the given values in the formula:

Perimeter = $2\times 3.14 \times 28$ = <em>175.84 m</em>

Therefore, 175.84 m of fencing is required.

8 0

3 years ago