All categories

2 years ago

State the restrictions, if any. F(x)= x/x2-81

Mathematics

1 answer:

Crazy boy [7]2 years ago

3 0

Answer:

f=1/x^2-81

Step-by-step explanation:

Step 1: Multiply both sides by x^2-81.

fx3−81fx=x

Step 2: Factor out variable f.

f(x3−81x)=x

Step 3: Divide both sides by x^3-81x.

f(x3−81x)

x3−81x =x x3−81x f= 1 x2−81

You might be interested in

When a fridge is imported, a customs value of 10% must be paid for its value. If the value of the fridge after paying the custom

Akimi4 [234]

Answer:

55000×100/90

61,111.111

3 0

2 years ago

Find the length of X in simplest radical form with a rational denominator

Darya [45]

Answer:

$x = \sqrt 6$

Step-by-step explanation:

Given

The attached triangle

Required

Find x

Considering angle 30 degrees,

$Opposite = \sqrt{2$

$Adjacent = x$

Using the tangent formula:

$tan\ 30 = \frac{\sqrt 2}{x}$

Make x the subject

$x = \frac{\sqrt 2}{tan\ 30}$

$x = \frac{\sqrt 2}{1/\sqrt 3}$

$x = \sqrt 2 * \sqrt 3$

$x = \sqrt 6$

6 0

3 years ago

Which number has a repeating decimal form?

blondinia [14]

Answer:

D. $\frac{2}{6}$

Step-by-step explanation:

2÷ 6 = 0.33333

As you can see 3 is repeating.

Therefore $\frac{2}{6}$ as repeating decimal form.

3 0

2 years ago

Each time Caroline goes shopping she decides whether or not to buy fruit.

DiKsa [7]

Let event A = Caroline buys fruit, event B = Caroline buys CD, Ac and Bc are complementary events.

Events AB, ABc, AcB and AcBc are jointly exhaustive and disjoint, hence P(AB) + P(ABc) + P(AcB) +P(AcBc) =1.

Events A and B independent, hence Ac and Bc independent too and probability P(AcBc) = P(Ac)*P(Bc) = (1 - P(A))(1-P(B)) = 0.6*0.4 = 0.24.

Required probability P(AB + ABc + AcB ) = P(AB) + P(ABc) + P(AcB) = 1- P(AcBc) = 1 - 0.24 = 0.76.

Answer: Probability that Caroline buys fruit, a CD or both is 0.76.

5 0

2 years ago

25 POINTS TO WHOEVER ANSWERS PLEASE HELP!!!

dimaraw [331]

No because it fails the vertical line test hope it helps

5 0

2 years ago

Read 2 more answers