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
WITCHER [35]
2 years ago
8

Simplify the expression: 2(3n+4)-2(2n+5)

Mathematics
2 answers:
inessss [21]2 years ago
4 0
First use distributive property:
2(3n + 4) - 2(2n + 5)
6n + 8 - 4n - 10
Group like terms:
6n - 4n + 8 - 10
Add like terms:
2n - 2
Rom4ik [11]2 years ago
4 0
First, distribute;
2(3n + 4) - 2(2n + 5)
(6n + 8) - (4n - 10)
2n - 2
You might be interested in
A survey found that women's heights are normally distributed with mean 62.7 in, and standard deviation 2.8 in. The survey also f
Viefleur [7K]

Using the normal distribution, we have that:

The percentage of men who meet the height requirement is 3.06%. This suggests that the majority of employees at the park are females.

<h3>Normal Probability Distribution</h3>

The z-score of a measure X of a normally distributed variable with mean \mu and standard deviation \sigma is given by:

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

  • The z-score measures how many standard deviations the measure is above or below the mean.
  • Looking at the z-score table, the p-value associated with this z-score is found, which is the percentile of X.

The mean and the standard deviation of men's heights are given as follows:

\mu = 69.3, \sigma = 3.9.

The proportion of men who meet the height requirement is is the <u>p-value of Z when X = 62 subtracted by the p-value of Z when X = 55</u>, hence:

X = 62:

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

Z = \frac{62 - 69.3}{3.9}

Z = -1.87

Z = -1.87 has a p-value of 0.0307.

X = 55:

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

Z = \frac{55 - 69.3}{3.9}

Z = -3.67

Z = -3.67 has a p-value of 0.0001.

0.0307 - 0.0001 = 0.0306 = 3.06%.

The percentage of men who meet the height requirement is 3.06%. This suggests that the majority of employees at the park are females.

More can be learned about the normal distribution at brainly.com/question/4079902

#SPJ1

8 0
1 year ago
Is 64 divided by 4 16?
IrinaK [193]

Answer:

Yes, 64 divided by 4 is 16.

Step-by-step explanation:

64/4 = 16.

16*2 = 32

32+32 = 64

6 0
3 years ago
What is the measure of the highlighted (middle) angle, in degrees?
Neko [114]
2x+5x+67.3=180
7x=112.7
X=16.1
16.1 times 5
80.5
5 0
3 years ago
Read 2 more answers
What is the difference between 15<br>​
Dominik [7]

Answer:

its an odd number

Step-by-step explanation:

4 0
1 year ago
Let f f be the function defined by f ( x ) = cos ⁡ ( π 2 x ) . f(x)=cos( 2 π ​ x). What is the average value of f f on the inter
Marina CMI [18]

Answer:

Is there an picture for this question

Step-by-step explanation:

6 0
3 years ago
Other questions:
  • Please please please please help
    8·1 answer
  • The base of the right triangle drawn in the regular octagon measures 0.7 cm.
    13·2 answers
  • Let f(x)=(x+2)2.
    13·2 answers
  • A point (-7, -6) is rotated counterclockwise about the origin to map onto (-6, 7). The
    8·1 answer
  • Two ballpoint pens are selected at random from a box that contains 3 blue pens, 2 red pens, and 3 green pens. If X is the number
    8·1 answer
  • Need help math equations work shown
    13·1 answer
  • ∆ABC is translated 6 units up and 3 units left to create ∆A'B'C'.
    6·1 answer
  • What’s the answer for this question
    15·1 answer
  • Ann purchased 6 packs of red pens, 10 packs of blue pens, and 8 packs of black pens. If there are 6 pens in each pack, how many
    15·1 answer
  • Can someone help me plz ​
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!