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1 year ago

If f(x)=(3+x)/(x-3), what is f(a+2)?

Mathematics

1 answer:

tigry1 [53]1 year ago

3 0

Answer:

To answer items such as this, we directly substitute the a + 2 to the all the x's in the function such that,

f(a + 2) = (3 + a + 2) / (a + 2 - 3)

Simplifying the function generated above,

f(a + 2) = (5 + a) / (a - 1)

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Which values represent solutions to cos

shepuryov [24]

Answer:

C option

Step-by-step explanation:

C is the correct solution of to above equation

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3 years ago

Write the number of measures (sides/angles/diagonals) needed to construct the following :

gladu [14]

Square :4 sides,each side 90 degrees ..

:each angle is 90 degrees

: 4 diagonals

Rectangle: 4 sides..4 angles..2 diagonals..
Rhombus : 4 sides..2 angles...2 diagonals..
Parallelogram : 4 sides..4 angles..2 diagonals..
Quadrilateral: 4 sides...4 angles...4 diagonals..

If this answer helps you plz mark as brainlist..

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2 years ago

The makers of a soft drink want to identify the average age of its consumers. A sample of 25 consumers was taken. The average ag

Lelu [443]

Answer:

a.1.90 years

Step-by-step explanation:

We have that to find our $\alpha$ level, that is the subtraction of 1 by the confidence interval divided by 2. So:

$\alpha = \frac{1-0.99}{2} = 0.005$

Now, we have to find z in the Ztable as such z has a pvalue of $1-\alpha$ .

So it is z with a pvalue of $1-0.005 = 0.995$ , so $z = 2.575$

Now, find the margin of error M as such

$M = z*\frac{\sigma}{\sqrt{n}}$

In which $\sigma$ is the standard deviation of the population and n is the size of the sample.

In this question:

$n = 25, \sigma = 3.8$

$M = 2.575*\frac{3.8}{\sqrt{25}} = 1.90$

So the correct answer is:

a.1.90 years

8 0

3 years ago

The school decided to raise the price of

Doss [256]

Answer:

.25 * 5=t

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

Match the following reasons with the statements in the given proof. Prove that if two angles are complementary to the same angle

yulyashka [42]

1. --> d

2. --> b

3. --> a

4. --> c

1 is d because that is the only piece of information that sounds like a given.

2 is b because we know that from the given, m∠1 is complementary to m∠2 and in the first problem, m∠1 + m∠2 = 90, they are added together. The definition of complementary angles is "Two angles with measures that, when added together, equal 90 degrees". Same thing with m∠3 and m∠2.

3 is a because since both of the problems equal 90 degrees, you can just take away the 90 and put an equal sign in between the two problems because they equal the same thing.

4 is c because you are subtracting m∠2 from the problems and ending up with just m∠1 = m∠3.

Hope this helps! :)

4 0

3 years ago

Read 2 more answers