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
pychu [463]
2 years ago
6

Plz plz help me look at the image

Mathematics
1 answer:
Dominik [7]2 years ago
3 0

Answer:

10

Step-by-step explanation:

2(x + 4) = 28

(x + 4) =  \frac{28}{2}

x + 4 = 14

x = 14 - 4

x = 10

You might be interested in
The volume of a solid is measured in units cubed. True False
weeeeeb [17]
I think the answer would be true
4 0
3 years ago
Read 2 more answers
In a certain section of Southern California, the distribution of monthly rent for a one-bedroom apartment has a mean of $2,275 a
KATRIN_1 [288]

Answer:

100% probability of selecting a sample of 65 one-bedroom apartments and finding the mean to be at least $2,095 per month

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 normal distributions can be solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the z-score 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 p-value, 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 normally distributed random variable X, with mean \mu and standard deviation \sigma, the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean \mu and standard deviation s = \frac{\sigma}{\sqrt{n}}.

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

Mean of $2,275 and a standard deviation of $290.

This means that \mu = 2275, \sigma = 290

Sample of 65:

This means that n = 65, s = \frac{290}{\sqrt{65}}

Finding the mean to be at least $2,095 per month

This is 1 subtracted by the p-value of Z when X = 2095. So

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

By the Central Limit Theorem

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

Z = \frac{2095 - 2275}{\frac{290}{\sqrt{65}}}

Z = -5

Z = -5 has a p-value of 0.

1 - 0 = 1

100% probability of selecting a sample of 65 one-bedroom apartments and finding the mean to be at least $2,095 per month

7 0
2 years ago
List the positive factors of 23
inysia [295]

The whole-number factors of  23  are  1  and  23 .


6 0
3 years ago
Read 2 more answers
(2x2 - 4x + 7) + (3x3 - 9x)
Leviafan [203]
The answer is 20-13x
5 0
2 years ago
T is the midpoint of SU. Find ST, TU and SU. <br><br><br> 10x-14 5x+16<br><br>S———T———U
jeka94

since T is the midpoint of SU, then ST = TU.

\bf \stackrel{10x-14}{\boxed{S}\rule[0.35em]{10em}{0.25pt}} T\stackrel{5x+16}{\rule[0.35em]{10em}{0.25pt}\boxed{U}} \\\\\\ \stackrel{ST}{10x-14}=\stackrel{TU}{5x+16}\implies 5x-14=16\implies 5x=30\implies x=\cfrac{30}{5}\implies x=6 \\\\[-0.35em] ~\dotfill\\\\ \stackrel{ST}{10(6)-14\implies 46}~\hfill \stackrel{TU}{TU=ST=46}~\hfill \stackrel{SU}{ST+TU=92}

6 0
3 years ago
Other questions:
  • Which expressions are polynomials?
    8·2 answers
  • Help with geometry please! I don't know how to do this
    6·1 answer
  • (4-3n) 8 simplify the expression
    15·1 answer
  • What is the IQR of <br>15,19,20,25,25,28,29,30,30,35,37,43<br>​
    9·2 answers
  • Problem of the week, provide step-by-step please!
    15·1 answer
  • PLEASE I NEED HELP ASAP THANK YOU :) &lt;3
    6·1 answer
  • A basket ball player attempts 15 baskets in a game . He makes 9 of the attemps what is the ratio
    6·1 answer
  • Find the area of the trapezoids.
    15·1 answer
  • D
    10·1 answer
  • Question A librarian weighs each book that was returned to the library (to the nearest pound). Below is the data. 245 55 Make a
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!