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
HACTEHA [7]
3 years ago
11

Please help. Simplify:

Mathematics
2 answers:
Shalnov [3]3 years ago
7 0

Answer:

use p h o t o m a t h

Step-by-step explanation:

Volgvan3 years ago
4 0
I’m pretty sure it’s B.
You might be interested in
Which statement about the zeros of the graphed function is true?
Anton [14]

Answer:

A. The function has three distinct real zeros.

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Find the solutions to the given system of equations
ladessa [460]
Your closeest awnsers D
6 0
4 years ago
Read 2 more answers
A tobacco company claims that the amount of nicotene in its cigarettes is a random variable with mean 2.2 and standard deviation
Aleksandr-060686 [28]

Answer:

0% probability that the sample mean would have been as high or higher than 3.1 if the company’s claims were true.

Step-by-step explanation:

To solve this question, we need to understand the normal probability distribution and the central limit theorem.

Normal probability distribution

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

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

The Z-score 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. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

Central limit theorem

The Central Limit Theorem estabilishes that, for a random variable X, with mean \mu and standard deviation \sigma, a large sample size can be approximated to a normal distribution with mean \mu and standard deviation s = \frac{\sigma}{\sqrt{n}}

In this problem, we have that:

\mu = 2.2, \sigma = 0.3, n = 100, s = \frac{0.3}{\sqrt{100}} = 0.03

What is the approximate probability that the sample mean would have been as high or higher than 3.1 if the company’s claims were true?

This is 1 subtracted by the pvalue of Z when X = 3.1. So

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

By the Central Limit Theorem

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

Z = \frac{3.1 - 2.2}{0.03}

Z = 30

Z = 30 has a pvalue of 1.

1 - 1 = 0

0% probability that the sample mean would have been as high or higher than 3.1 if the company’s claims were true.

4 0
4 years ago
Pls help I don’t under stand this
kati45 [8]

Hello  <u>Queengirl0 </u>

Past tense:

Melissa has a full chocolate bar 8/8

At lunch:

Melissa ate 2/8 of the candy bar, 8/8 - 2/8 = 6/8

After school:

Melissa ate 3/8 of the candy bar, 6/8 - 3/8 = 3/8

<u><em>Melissa has 3/8 of a chocolate bar left</em></u>

:)

5 0
3 years ago
Read 2 more answers
Beatriz has a big hot chocolate. She drank 7 ounces so far, how large is her entire hot chocolate
Ksivusya [100]

Answer:

larger than 7 ounces

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Other questions:
  • Does a rectangle have four congruent sides?
    6·1 answer
  • Find x to the nearest hundredths place. A. 52.06 cm B. .04 cm C. 10.26 cm D. 24.27 cm
    10·1 answer
  • Estimate 200,629 +28,542
    11·2 answers
  • Zap has coordinates z(-1,5) a(1,3) and p(-2,4) a translaton maps point z to z(1,1) find the coordinates of a and p under this tr
    13·1 answer
  • Triangle XYZ is reflected across the x-axis, and X = (–11, 8). What are the coordinates of X’ ? (11,–8) (–8, 11) (11, 8) (–11, –
    8·2 answers
  • Select the closest answer. *
    15·1 answer
  • Can someone help me with this math homework please!
    7·2 answers
  • The value of y is directly proportional to the value of x. Given y = 12 when x = 36.
    15·2 answers
  • "Mindy has a piece of string that is 5 1/2yd long. She cuts it into pieces that are each 1/2 yd long. Solve the equation 5 1/2 =
    12·1 answer
  • Anyone who answers this correctly I WILL GIVE U A SUPER THANKS
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!