Mathematics College

A department store, on average, has a daily sales of $28,176.44. The standard deviation of sales is $1500. On Tuesday, the store sold
$34,083.30 worth of goods.

Find Tuesday's z score

Answers

Answer 1

Answer:

You are t subtract both 28,176.44-$1500

Step-by-step explanation:

right after that the answer you get for subtraction you go ahead and use it to subtract with 34,083.30

Related Questions

Find the area in square inches. <3

Answers

To find the area of a triangle you are supposed to use the formula:

1/2 x b x h

So we know the height and base is 9 and 12:

1/2 x 9 x 12

Multiply the newly made equation and you get:

54

Have an awesome day <3

I neeed help on thesse last two my test ends in 3 min help

Answers

Answer:

cjones8806

Virtuoso

38 answers

183 people helped

i need points sorry I cant help

Step-by-step explanation:

green box?

(srry if it isn't correct, but that's what I got!!)

rlly sorry

3^4 + 3 • 5 =
(Input only whole numbers.)
Numerical Answers Expected!

Answers

Answer:

To write 3/4 as a fraction with a common denominator, multiply by 5/5

3/4⋅5/5+3/5

To write 3/5

as a fraction with a common denominator, multiply by 4/4

3/4⋅5/5+3/5⋅4/4

Write each expression with a common denominator of 20

, by multiplying each by an appropriate factor of 1

Tap for more steps...

3⋅52/0+3⋅42/0

Combine the numerators over the common denominator.

3⋅5+3⋅420

Simplify the numerator.

Step-by-step explanation:

i give points for answer that sounds like a good reward

Answers

Answer:

6(x+3)=24

x represents the price of one ticket

x = 1

You can figure out the last part

Step-by-step explanation:

The x represents the price of one ticket because you are paying for 6 tickets and 6 - $3 snacks

6(x+3) = 24

x+3 = 4

x = 1

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

I really need major help .

Answers

Answer:

Step-by-step explanation:

exponential , b/c it curves upwards

a linear graph with have a constant number of growth, and an exponential, needs that number to change, so that's why the exponent is required.

Maybe a temperature function that could follow the outdoor temp over a few hour period , say in the morning.. as the temp goes up in a linear fashion.

maybe the temp at 8 am would be 50 then at 9 it would be 55 and at 10 it would be 60 and at 11 it could be 65 , something like that seems like it would be a good working example of a linear function that was not chosen

which data set could not be represent by the box plot shown

Answers

Answer:

Mean, and the Mode

Step-by-step explanation:

the things it can represent are

Minimum: 4

Maximum: 14

First Quartile: 7

Second Quartile: 9

Third Quartile: 12

Median: 7.5

Used car auctions give car dealers an opportunity to increase their used car inventory by purchasing cars used as rental cars, assigned to company executives, and other similar activities. Suppose population 1 is all black cars sold at used car auctions, and population 2 is all white cars sold at used car auctions. Of interest is to estimate the difference in the mean sale price of all black cars sold at used car auctions and the mean sale price of all white cars sold at used car auctions. Based on this, using both the appropriate symbol and in words, state the one parameter of interest.

a. The parameter of interest is μ the difference in the mean sale price of all black cars sold at used car auctions and the mean sale price of all white cars sold at used car auctions.
b. The parameter of interest is μ1, the mean sale price of all black cars sold at used car auctions.
c. The parameter of interest is μ1-μ2, the difference in the mean sale price of all black cars sold at used car auctions and the mean sale price of all white cars sold at used car auctions.
d. The parameter of interest is μ2, the mean sale price of all white cars sold at used car auctions.

Answers

Answer:

c. The parameter of interest is μ1-μ2, the difference in the mean sale price of all black cars sold at used car auctions and the mean sale price of all white cars sold at used car auctions

Step-by-step explanation:

Of interest is to estimate the difference in the mean sale price of all black cars sold at used car auctions and the mean sale price of all white cars sold at used car auctions.

The parameter of interest is the difference. Suppose we have that [tex]\mu_1[/tex] is the mean sale price of all black cars sold at used car auctions, while [tex]\mu_2[/tex] is the the mean sale price of all white cars sold at used car auctions. Since the parameter of interest is the difference, it is [tex]\mu_1 - \mu_2[/tex], and the correct answer is given by option c.

Use the graph of the exponential function to answer the following question.
1 x)
21
2
-2
Which statements about the graph of the exponential function f(x) are TRUE? Select all that apply.
A. The range is all real numbers.
B. f(x) is positive for all x-values less than 1.
C. As x increases, f(x) approaches, but never reaches, -1.
D. The x-intercept is 2.

Answers

B. F(x) is positive for all x-values less than 1

Answers

Complete question :

The time married men with children spend on child care averages 6.4 hours per week (Time, March 12, 2012). You belong to a professional group on family practices that would like to do its own study to determine if the time married men in your area spend on child care per week differs from the reported mean of 6.4 hours per week. A sample of 40 married couples are surveyed to collect the hours per week the husband spends on child care. The sample mean is 7.0 hours per week, and the sample standard deviation is 2.4276 hours per week. Use Excel to answer the following questions. a. What are the hypotheses if your group would like to determine if the population mean number of hours married men are spending in child care differs from the mean reported by Time in your area? b. What is the test statistics of the population mean? c. Using a .05 level of significance, what are the critical values? d. What is your conclusion?

Answer:

H0 : μ = 6.4

H1 : μ ≠ 6.4

Test statistic = - 1.563

Critical value = ±2.023

Fail to reject the null ; there is no significant evidence to support the claim that mean number of hours spent differs

Step-by-step explanation:

H0 : μ = 6.4

H1 : μ ≠ 6.4

Test statistic, Z :

(Xbar - μ) / (s/√n)

(6.4 - 7) / (2.4276/√40)

-0.6 / 0.3838372

T= -1.563

α = 0.05 ; df = n - 1 = 40 - 1 = 39

Critical value(0.05, 39) = ±2.023

|T| > +Tcritical ; Reject the Null

Since |T| < +Tcritical ; then we fail to reject the Null, hence, we conclude that there is no significant evidence to support the claim that mean number of hours spent by married men in child care differs.

Which statement about 12 multiplied by 5/4 must be true?
•The product is greater than 12.

•The product is less than 5/4.

•The product is equal to 12 multiplied by the reciprocal of 5/4.
•The product is less than 12.

Answers

Answer:

The answer is A. The product is greater than 12

HELP FILE IS BELOW MATH QUESTION ABOUT ANGLES

Answers

Answer:

Step-by-step explanation:

In image

A bag contains 5 blue, 4 red, 7 black and 2 white marbles. What is the probability of selecting a marble that is NOT white or red?

Answers

The probability of not selecting white or red is 6/18 = 1/3

NEED HELP WITH THIS please

Answers

Answer:

Step-by-step explanation:

this is A
……………………………..

What are the other side lengths of the triangle?

Answers

9514 1404 393

Answer:

24, 26

Step-by-step explanation:

The shortest side of the given triangle is 10 units, so the similar triangle is larger by a factor of 20/10 = 2. The other two sides of the similar triangle are both 2 times the other two sides of the given triangle:

2×12 = 24

2×13 = 26

The other side lengths are 24 and 26 units.

any help please .. using the last of my points for this :/

Answers

1. Exponential would be the best option to model the data because of the large increase. It would be more difficult to model it linear because the linear values would jump from 10 to 34 to 91 etc. there is a no correlation between them.
2. We can tell which function is the best based on the y values and x values. Especially with key words like double or triple we know that’s it going to be exponential. Linear would be like if we were presenting a graph for tickets and prices which is a straight line with increasing x and y values and the rate of change is constant.
Exponential usually have a consistent multiplier so it won’t be the same but there will be a pattern.
3. 4 data points would be 1,2,3,4 for x values and for y (2,4,6,8). I set up the data to be constant the x values are adding by 1 and the y values are added by 2. If we were graphing this it would obviously be a straight line.

According to the graph, the __________________ is 57-43.

Answers

Answer:

Range

Step-by-step explanation:

The range is the max value minus the min value

Please help answer this question

Answers

X= 4 this solution is valid

X= 20 this solution is valid

X=4
X=20
Hope this works for you

Consider this expression (x+9)(x-2)-9×_6
What expression is equivalent to the given expression

Answers

Answer:

x^2 -2x-24

Step-by-step explanation:

Answer: (x+4)(x-6)

Step-by-step explanation: Plato Answer

Expand (x-2)^2 in polynomial form

Answers

Answer:

x^2 -4x +4

Step-by-step explanation:

(x-2)(x-2)

x^2 -2x -2x +4

x^2 -4x +4

Determine the unknown measures of the triangle shown. Round to the nearest tenth, if necessary. x = in. y ≈ ° z ≈ ° A right triangle is shown. The hypotenuse has a length of x. The other 2 sides have lengths of 24 inches and 7 inches. The angle opposite to the side with length 7 inches is y, and the angle opposite to the side with length 24 inches is z.

Answers

9514 1404 393

Answer:

x = 25y = 16.3°z = 73.7°

Step-by-step explanation:

The length of the hypotenuse can be found using the Pythagorean theorem:

x² = 7² +24² = 49 +576 = 625

x = √625 = 25

The angles can be found from the sine relation.

Sin = Opposite/Hypotenuse

sin(y) = 7/25

y = arcsin(7/25) ≈ 16.3°

The acute angles in a right triangle are complementary, so ...

z = 90° -16.3° = 73.7°

Answer:

x = 25 in.

y ≈ 16.3 degrees

z ≈ 73.7 degrees

Step-by-step explanation:

Evaluate:
2451(4n + 9) = [ ? ]
Please help

Answers

Answer:

4545

Step-by-step explanation:

I used a spreadsheet to calculate the value....

n Sum

1 4n+9 13 13

2 4n+9 17 30

3 4n+9 21 51

. .

44 4n+9 185 4356

45 4n+9 189 4545

50 POINTS !!

PLEASE HELP !! ILL GIVE BRAINLIEST TO THE RIGHT ANSWERS.

Answers

a^2 + b^2 = c^2
21^2 + b^2 = 29^2
b^2 = 29^2 - 21^2
b^2 = 400
b = 20 yds

What is the coefficient of the leading term in that binomial?

Answers

15 is the coefficient

It would be 3. This is because just by looking at the first term of the quadratic we need to make 3x^2 with our two factors. The leading coefficient is 3 in the quadratic, thus we must consider its factors in the two binomials making the factors of the quadratic. 3’s factors are just 1 and 3. Since, one is already taken by the binomial given(the imaginary one in front of the x) we can safely assume the second factor to have a leading coefficient of 3.

NEED HELP ASAP! WILL GIVE BRAINLY :)

Answers

Answer:

y = x - 3

Step-by-step explanation:

Slope = Rise / run

Slope = 4/4 = 1

y-intercept = -3

y = x - 3

it took 5 hours to mow 6 yards. at the rate, how many yards can be mowed in 20 hours

Answers

Answer:

24 yards

Step-by-step explanation:

Given: 5 hours to mow 6 yards.

To find: At the same rate, how many yards can be mowed in 20 hours?

Solution: There are lots of different ways of solving this but I will show you setting up fractions to know how much 5 hours are for 6 yards let "x" be the variable

Step 1: Multiply all terms by the same value to eliminate fraction denominators

[tex]\frac{6}{5} = \frac{x}{20} \\\\20*\frac{6}{5} = 20 * \frac{x}{20}[/tex]

Step 2: Cancel multiplied terms that are in the denominator

[tex]20*\frac{6}{5} = 20 * \frac{x}{20}\\\\20 * \frac{6}{5} = x[/tex]

Step 3: Multiply the numbers

[tex]20 * \frac{6}{5} = x\\\\24 = x[/tex]

Step 4: Move the variable to the left

[tex]24 = x\\\\x = 24[/tex]

Therefore, 24 yards can be mowed in 20 hours.

44 points
No links, No silly answers, only thought-out answers.
Simplify the expression.

16(12x)4
The simplified expression is______________.
Please answer with No links, No silly answers, only thought-out answers by 7:30, and it will increase the chance of me not reporting you and picking you as brain list

Answers

Answer:

I believe the answer is 64 x 12x

Step-by-step explanation:

16(12x)4 =

16 x 4(12x)

64 x 12x

If two angles are supplementary and one angle is xº what is the measure of the other angle?

Answers

Answer:

Supplementary angles are equal to 180 so whatever number is on one angle the number subract that number with 180 and then you have answer for x

Step-by-step explanation:

3. The parallelogram which measure 15 cm by 25 cm and a square have the same
perimeter. What is the length of one side of the square?

answer pls i follow and like and rate

Answers

Answer:

20 cm

Step-by-step explanation:

perimeter is found by add ing all sides, so 15+15+25+25 = 80

All sides of the square are equal so you divide the sum (80) by 4 which equals 20.

Answer:

20 cm

explanation: I think

Sana makatulong

What is 3/4-5/8?
? Give your answer in its simplest form.

Answers

Answer:

1 over 8

=0.125

Step-by-step explanation:

I need help wants 13x+2y-10-7y (you have to simplify it)

Answers

Answer:

13x-5y-10

Step-by-step explanation:

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A department store, on average, has a daily sales of $28,176.44. The standard deviation of sales is $1500. On Tuesday, the store sold $34,083.30 worth of goods. Find Tuesday's z score

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A department store, on average, has a daily sales of $28,176.44. The standard deviation of sales is $1500. On Tuesday, the store sold
$34,083.30 worth of goods.

Find Tuesday's z score