1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ella [17]
3 years ago
8

Help please!! True Or False?

Mathematics
2 answers:
ahrayia [7]3 years ago
8 0
It’s a constant so it’s true. A constant is a number on it’s on or it can be a letter stranded for a fixed number
Sergio039 [100]3 years ago
3 0
True because it’s constant
You might be interested in
Lim x-> 0 sqrt x+4 -2 / x
Wittaler [7]

Greetings from Brasil...

Here we have an indeterminacy 0/0

We can change variable or rationalize.......

Let's rationalize

{[√(X + 4) - 2]/X} · {[√(X + 4) + 2]/[√(X + 4) + 2]} = 1/[√(X + 4) + 2]

So, the limit will be 1/4

3 0
1 year ago
I neeeedd helpp asap
solniwko [45]
I think the 3rd one
7 0
3 years ago
Read 2 more answers
2 1⁄4 × 1 1⁄2 × 5⁄3 =
omeli [17]

Answer:

45/8 = 5,625

Step-by-step explanation:

2\frac{1}{4} × 1\frac{1}{2} × \frac{5}{3} = 9/4 × 3/2 × 5/3 = 9/4 × 1/2 × 5 = 45/8 = 5,625

8 0
3 years ago
10. Contacts. Assume that 30% of students at a university
jonny [76]

Using the <em>normal distribution and the central limit theorem</em>, we have that:

a) A normal model with mean 0.3 and standard deviation of 0.0458 should be used.

b) There is a 0.2327 = 23.27% probability that more than one third of this sample wear contacts.

<h3>Normal Probability Distribution</h3>

In a normal distribution with mean \mu and standard deviation \sigma, the z-score of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

  • It measures how many standard deviations the measure is from the mean.
  • After finding the z-score, we look at the z-score table and find the p-value associated with this z-score, which is the percentile of X.
  • By the Central Limit Theorem, for a <u>proportion p in a sample of size n</u>, the sampling distribution of sample proportion is approximately normal with mean \mu = p and standard deviation s = \sqrt{\frac{p(1 - p)}{n}}, as long as np \geq 10 and n(1 - p) \geq 10.

In this problem:

  • 30% of students at a university wear contact lenses, hence p = 0.3.
  • We randomly pick 100 students, hence n = 100.

Item a:

np = 100(0.3) = 30 \geq 10

n(1 - p) = 100(0.7) = 70 \geq 10

Hence a normal model is appropriated.

The mean and the standard deviation are given as follows:

\mu = p = 0.3

s = \sqrt{\frac{p(1 - p)}{n}} = \sqrt{\frac{0.3(0.7)}{100}} = 0.0458

Item b:

The probability is <u>1 subtracted by the p-value of Z when X = 1/3 = 0.3333</u>, hence:

Z = \frac{X - \mu}{\sigma}

By the Central Limit Theorem

Z = \frac{X - \mu}{s}

Z = \frac{0.3333 - 0.3}{0.0458}

Z = 0.73

Z = 0.73 has a p-value of 0.7673.

1 - 0.7673 = 0.2327.

0.2327 = 23.27% probability that more than one third of this sample wear contacts.

To learn more about the <em>normal distribution and the central limit theorem</em>, you can take a look at brainly.com/question/24663213

5 0
2 years ago
What is the standard form of the equation of the line through (6,-3) with a slope of 2/3
tangare [24]
Ax+by=c is the standard form
you are given the slope and a point, so first write the equation in point-slope form:
y-(-3)=2/3(x-6)
expand the equation: y+3=(2/3)x-4
(2/3)x-y=7 is the standard form
5 0
3 years ago
Read 2 more answers
Other questions:
  • A railway system on a hillside moves passengers at a constant rate to an elevation of 50 m. The elevations of a train are given
    10·2 answers
  • Denzel wants to subtract 517-183. How can he combine the place values to find the difference?
    6·1 answer
  • There are 8 volunteers at the telethon. The goal for the evening is to raise $952. If each volunteer raises the same amount, wha
    8·2 answers
  • A company sell earbuds for $17 each. At the end of the week,they have sold $731 worth of earbuds.how many earbuds did they sell?
    10·1 answer
  • Find the area. The figure is not drawn to scale.
    15·1 answer
  • What expression represents the<br> statement?<br> 6 more than 23
    8·1 answer
  • A school hall is in the shape of a cuboid. The school hall is 30 m long, 12 m wide and 4 m tall. (a) Calculate the volume of the
    10·1 answer
  • What is 2 ( 3x+5) - 2( x+ 4)
    15·2 answers
  • What is 6 4/9 as an improper fraction
    7·2 answers
  • HELP ME THIS IS FROM KA
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!