A data set has a mean of 42 and a standard deviation of 7.8 if an element in the set is 54 find its z-score

Answers

Answer 1

Answer:

mean=42

SD=7.8

X=54

Z=(X-u)/SD

Z=(54-42)/7.8=12/7.8

=1.54


Related Questions


Determine what type of sequence this is:
6.5, 5.3.5, 2....
Arithmetic or
Geometric

What is the common difference or common ratio of this sequence?
6.5, 5.3.5. 2....

Answers

Answer:

6.5=30, 5.3.5.2=150

It is a geometric series.

30, 150,......

a1=30

common ratio

r= 150/30= 5

an=ar^(n-1)

a package of nine pens cost 3.60 how much is one pen

Answers

Answer:

Step-by-step explanation:

40 cents

Answer:

40 cents.

Step-by-step explanation:

If you take 3.6 and divide it by nine, you get 0.4. To check, if you multiply 0.4 times 9, you get 3.6. Hope this helps :)

my teacher would like you to solve this using fraction ex:(345/x=727/2355) (just a heads up!!) please help :)​

Answers

Answer:

84

Step-by-step explanation: (edited)

52% problems are pointless i.e. 48% are NOT pointless.

Recall that 1% = 1/100.

Therefore 48% = 48/100 = 12/25.

Let x be the number of problems that are not pointless.

x/175 = 12/25

x = 84

Answer:

84

Step-by-step explanation:

According to the question

175×48%

175×48/100

7×48/4

7×12

84

Simplify: 5w^5-(-4w^5)

Answers

Answer:

9w^5

Step-by-step explanation:

Find the value of x. 1) m angle2=3x-6 120° 2 B) 10 D) 6 A) 12 C) -11​

Answers

dmdkd bdkdnsndnxnfndksndnxjxkdndkdkd disks

Find the difference.

Answers

I think I’m not sure -3/20a

So if I have 3000 student and 1234 leave how many should I have left

Answers

You would have 1766 Students because 3000-1234 is equal to that number

Hi please help me answer this :)

Explain answer

Will give braisnlt

Answers

Answer:

There are no solutions

Step-by-step explanation:

No intersections or points that apply for the equations.

Any intersection between both lines is a solution. As these lines are parallel they have no solution. If they met at any point, 90 degree or not, there is  solution, the solution will be a point. If they are on the same line, hitting all the same points, the solutions are infinite.

Plz help me will put Brainiest
The maximum weight allowed per car on The Wildcat carnival ride is 297 pounds. Your friend weighs 99 pounds.
able to ride in a car together, how much can you weigh? Write and solve an inequality.

X + 99 S 198, at most 297 pounds

X + 99 5 297, at most 198 pounds

X-99 < 297, at most 99 pounds

x + 198 5 297, at most 99 pounds


Answers

Answer:

161 + 60 inequality-lessthanorequalto 221; at most 161 pounds

221 - 60 =161

Step-by-step explanation:

The system shown has (blank)
solution(s).
y= -x+1
2y - x = 2

Answers

Answer:

x=0 and y=1

Step-by-step explanation:

Martin's car had 86,456 miles on it. Of that distance, Martin's wife drove 24,901 miles,
and his son drove 7,997 miles. Martin drove the rest. How many miles did Martin drive?
Show work.

Answers

Answer:

Martin drove 53,558 miles.

Step-by-step explanation:

If you add up the amount of miles his son and wife drove, you get 32,898. To get the answer, you would subtract that from the total number of miles to get 53,558.

Please answer this:
Will give more points after answered thank you.

Answers

Answer:

a 31

b 1

c she could eat it herself

I hope it helps!!!

Step-by-step explanation:

Answer:

a)  no.of chocolates each person recieved = 900/29

                                                                       = 31.03  

for second question, we have to round it to get 31 coz we want a perfect number there

b)remaining chocolates =  (31 x 29) - 900  

                                        = 899-900 = 1

c) Only one candy is left with her, so I would insist she to have that chocolate

Hope it helped u,

mark as the brainliest Celina

^v^

A store owner paid $15 for a book. She marked up the price of the book by 40% to determine its selling price.



A.) What is the selling price, in dollars, of the book?



B.) A customer buys a different book that has an original selling price of $38. The book is discounted 25%. The customer must pay a 6% sales tax on the discounted price of the book. What is the total amount, in dollars, the customer pays for the discounted book?

Answers

Answer:

First, find 75% of 38. Then multiply that number by 1.06. That should give you the answer. Your welcome if your still confused just answer back!

Step-by-step explanation:

Answer:

21

Step-by-step explanation:

A chemist has a solution of 65% pure acid and another solution of 30% pure acid. How many gallons of each will make 350 gallons of 55% pure acid solution?

Answers

Answer:

250 of 65% acid

100 gallons of 30% acid

Really sorry if this is incorrect, I had this question on my Lesson 16 test, and I don't know if it's correct or not...

Answer:

250 of 65% acid

100 g of 30% acid

Step-by-step explanation:

If two parents, one with brown eyes (a dominant trait) and the other with blue eyes (the recessive trait) produce one twin boy with blue eyes, what is the probability that a fraternal twin will transmit the blue eye allele to his or her offspring

Answers

Answer:

50 percent

Step-by-step explanation:

It is given that one of the parent with a dominant trait have brown eyes and the other parent with a recessive trait has blue eyes. They produce a twin boy with eyes that is blue in color. So the probability of the fraternal twin to transmit his allele of blue eye to his or her offspring is 50 percent.

And also the probability of the offspring to pass the allele on to his or her offspring is 50 %.

The product rule is used : 0.5 x 0.5 = 0.25 or 25%.

I need this it’s due today

Answers

answer
a=9

hope this helps and have a wonderful day :)

i think the answer is 9

Step-by-step explanation:

step 1. simplify both sides of the equation

step 2. add 17 to both sides

step 3. multiply both sides by 3

answer a =9

Is this a function?

Answers

No I don’t believe it is

Р
D
Which of the statements describe the transformation on
the left? Check all that apply.
NOPQR-N'O'P'Q'R'
ONOPQR-→ NOPQR
O QRNOP → R'N'O'P'Q'
NOPQR maps to N'O'P'Q'R'
O QPONR maps to Q'P'O'N'R'
N
R
N
R

Answers

The statements which describe the transformation on the left are:

NOPQR → N'O'P'Q'RNOPQR maps to N'O'P'Q'R'QPONR maps to Q'P'O'N'R'

What is a transformation?

A transformation refers to the movement of a point from its original position to a new location. Hence, when an object is transformed, all of its points would also be transformed.

Based on the image of these geometric figures (see attachment), we can infer and logically deduce that the following statements describe the transformation on the left:

NOPQR → N'O'P'Q'RNOPQR maps to N'O'P'Q'R'QPONR maps to Q'P'O'N'R'

Read more on transformation here: https://brainly.com/question/12040896

#SPJ1

Answer: a,b,d that´s the answer

Step-by-step explanation

Dave leaves his house and bikes directly east for 3 miles. He then turns and bikes directly
south for 4 miles. How many miles is Dave from his house?

Answers

Answer:

12

Step-by-step explanation:

What is the decimal equivalent of the fraction 2?
0 2.125
0 2.4
O 2.1
O 2.18

Answers

Answer:

2 .1 because its closes to two

An arithmetic sequence is given below. 4, 9, 14, 19, Write an explicit formula for n^th term a v n.​

Answers

Answer:

4 + 5(9) = a

Step-by-step explanation:

4 is the starting term, 5 is the constant term, and 9 is the amount of times you go farther into the sequence, and a is the total number you get

PLEASE HELPPPP ME!!!!!

Answers

Answer:

Problem 1: No

Problem 2: Yes

Step-by-step explanation:

Problem 1:

{(-2, 1), (-2, 3), (0, -3), (1, 4), (3, 1)}

This relation is not a function because there are two y-values, 1 and 3, related to one x-value, -2.

Thus, for a relation to be a function, every x-value must be related to exactly 1 y-value.

Problem 2:

{(0, 2), (3, 4), (-3, -2), (2, 4)}

In this relation, each x-value (domain) has exactly one y-value (range) that it is related to. Therefore, this is a function.

The data shows the number of salad wraps sold on each day for two weeks at a sandwich shop.


Week 1: 15, 13, 14, 14, 13, 12, 13

Week 2: 18, 3, 15, 15, 16, 14, 16


Which statement about the data is true?


a. The mean of Week 1 data is a good estimate of the sandwich shop's daily sales.



b. The mean of Week 2 data is a good estimate of the sandwich shop's daily sales.



c. Both the mean of Week 1 data and the mean of Week 2 data are good estimates of the sandwich shop's daily sales.



d. Neither the mean of Week 1 data nor the mean of Week 2 data is a good estimate of the sandwich shop's daily sales.

Answers

Answer:

Did you find the answer?

Step-by-step explanation:

Rewrite in simplest terms: -2(3g-8g+8)-9g−2(3g−8g+8)−9g

Answers

Answer: 2g - 32

Step-by-step explanation:

-2 (3g - 8g + 8) - 9g - 2 (3g - 8g + 8) - 9g

First step is to use the distributive property to distribute 2.

The expression is now:

-6g + 16g - 16 - 9g - 6g + 16g - 16 - 9g

Now you put the like terms together..

-6g + 16g - 9g - 6g + 16g - 9g -16 - 16

All that is left to do is combine them!

(-6g + 16g - 9g - 6g + 16g - 9g) + (-16 - 16)

2g + (-32)

2g - 32

Hope that helped!

can someone fact check this to make sure its correct

Answers

All your answers look good!

Answer:

looks good

Step-by-step explanation:

Write the relation as a set of ordered pairs.

A relation. An arrow goes from negative 2 to 4, 0 to 0, 2 to 4.
a.
ordered pairs: {(4, –2), (0, 0), (2, 4)}
b.
ordered pairs: {(–2, 4), (0, 0), (4, 2)}
c.
ordered pairs: {(–2, 4), (0, 0), (2, 4)}
d.
ordered pairs: {(4, –2), (0, 0), (4, 2)}

Answers

The answer is either a or b

Answer:

Write the relation as a set of ordered pairs.

Step-by-step explanation:

A relation. An arrow goes from negative 2 to 4, 0 to 6, 2 to 8.

a.

ordered pairs: {(4, –2), (0, 6), (2, 8)}

b.

ordered pairs: {(–2, 4), (0, 6), (2, 8)}

c.

ordered pairs: {(4, –2), (0, 6), (8, 2)}

d.

ordered pairs: {(–2, 4), (6, 0), (8, 2)}

Onii-Chan help me whit 5-8

Answers

the answer to 5-8 is 3

5,1,0,4,0 what is the range?

Answers

Answer:

range: 4

Step-by-Step Explanation:

Simplify the expression:
Question 20 options:

A)



B)

2

C)

4

D)

Answers

Whats the expression?

Find the x-Intercept and the y-Intercept of the line below. Click on "None" if applicable.
None

Answers

Answer: X-intercept is (2,0)

Y-intercept is (0,-2)

Step-by-step explanation:

Answer:

X-intercept is (2,0)

Y-intercept is (0,-2)

Step-by-step explanation:

The x intercept is the point at which the line hits the x-axis

in this picture, you can see that the given line hit the x-axis at (2,0)

The y intercept is the point at which the line hits the y-axis

so in this case you can see the the line hits the y-axis at (0,-2)

Bonus: if a line is horizontal it will not have an x intercept, and if a line is vertical, it will not have ay intercept

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