All categories

2 years ago

Simplify the rational expression. 5x - 40 / 64 - x^2

Mathematics

1 answer:

Maru [420]2 years ago

7 0

5x - 5 over 8 - x ^ 2

You might be interested in

Use the information to answer the following question.

trasher [3.6K]

Answer:

D is the answer

Step-by-step explanation:

For a: g(x) = 1 when x = 1, for f(x) 1^2 - 2(1) + 2 = 1, a is true.

For b: Both functions do have all real numbers for their domain, b is true

For c: the y-intercept of g(x) is x = 0, for f(x), it is 0^2 - 2(0) + 2 = 2, c is true

For d: g(3) = 7, f(3) = 3^2 - 2(3) + 2 = 5, d is false.

3 0

2 years ago

A newspaper article states that 90% of drivers in Iowa wear their seatbelt. Suppose we are interested in estimating the proporti

konstantin123 [22]

Answer:

The sample size is $n = 3457$

Step-by-step explanation:

From the we are told that

The population proportion is p = 0.90

The margin of error is E = 0.01

From the question we are told the confidence level is 95% , hence the level of significance is

$\alpha = (100 - 95 ) \%$

=> $\alpha = 0.05$

Generally the sample size is mathematically represented as

$n =[ \frac{ Z_{\frac{\alpha }{2} } }{E} ]^2 * p(1-p)$

=> $n =[ \frac{ 1.96 }{0.01} ]^2 * 0.90(1-0.90)$

=> $n = 3457$

8 0

3 years ago

4.8.4 Raw materials are studied for contamination. Suppose that the number of particles of contamination per pound of material i

forsale [732]

Answer:

700 lbs and 3.742

Step-by-step explanation:

Given that raw materials are studied for contamination. Suppose that the number of particles of contamination per pound of material is a Poisson random variable with a mean of 0.02 particle per pound.

a) To get 14 particles of contamination we must have

expected number of pounds = $\frac{14}{0.02} \\=700$

b) Since for 700 pounds particles expected are 14 we can say in a Poisson distribution mean and variance are equal

i.e. Var (700 lbs to obtain 14 particles of contamination ) = 14

Std deviation = $\sqrt{14} =3.742$

5 0

2 years ago

Ok but the fact that the d'amelios had to cheat in trivia when they already had an advantage of 4x brain power proves that tikto

jok3333 [9.3K]

You are right don’t worry

7 0

2 years ago

Read 2 more answers

Ok pls do this please and thank you

harina [27]

Answer:

Step-by-step explanation:

So, after you roll it, the width will be the circumference of the circle $3*3*r=9r ( r = pi)$

The minimum amount will be $9r*24=216r=678.5840132$

I don't know, how number you want to round, so you can round it by yourself

4 0

2 years ago