Let f(x) = 3x - 7 and g(x) = -2x -6. Find (f x g)(4)<br> Include steps please.

Please help me out !!! <br><br> *please answer asap*

lorasvet [3.4K]

Answer:

the answer is 12

Step-by-step explanation:

p(n)= 6-2(1+n)

so if p(2)

then n=2

therefore,

p(2)= 6-2(1+2)

= 4×3

=12

8 0

3 years ago

My number is a multiple of 2 & 7 my number is less than 100 but greater than 50 my number is the product of three prime numb

forsale [732]

12345678910
ihtrguhbvr;wmytpb jq
omuyi bnkq4ht6kljihtlr'iwhvncnh ug5

8 0

3 years ago

Marc is looking at the plans for his new garage. the length of the garage is 8 metres. the scale on the drawing is 1:50. what wi

evablogger [386]

The answer is 16 cm (or 0.16 m).

The scale is the ratio of the model to the real thing.
So, in the scale 1:50, the model is 1, while the real thing is 50.
Now, just make a proportion:
the model : the real thing = the model dimension : the real thing dimension
1 : 50 = x : 8m

From here:
x = 8m * 1 / 50 = 0.16 m = 0.16 * 100 cm = 16 cm.

4 0

3 years ago

A researcher is interested in the lengths of brook trout, which are known to be approximately Normally distributed with mean 80

aliya0001 [1]

Answer:

$P(X$

And we can find this probability with the normal standard distirbution or excel and we got:

$P(z$

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".

Solution to the problem

Let X the random variable that represent the lenghts of a population, and for this case we know the distribution for X is given by:

$X \sim N(80,5)$