Surface area- Rectangle
Please help ASAP

The z-statistic for Brett's data is found to be as given by: Option A: -5.30 (approx).

Suppose we're specified that:

Then the z-statistic for this data is found as:

[tex]Z = \dfrac{\overline{x} - \mu}{\sigma/\sqrt{n}}[/tex]

For this case, we've got:

Thus, we get:

[tex]Z = \dfrac{\overline{x} - \mu}{\sigma/\sqrt{n}} = \dfrac{295 - 310}{20/\sqrt{50}} \approx -5.30[/tex]

Thus, the z-statistic for Brett's data is found to be as given by: Option A: -5.30 (approx).

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According to the given data and applying it's formula, the z-statistic is of z = -5.30.

It is given by:

[tex]z = \frac{\overline{x} - \mu}{\frac{\sigma}{\sqrt{n}}}[/tex]

The parameters are:

In this problem, the values of the parameters are given by:

[tex]\overline{x} = 295, \mu = 310, \sigma = 20, n = 50[/tex]

Hence, the z-statistic is given by:

[tex]z = \frac{\overline{x} - \mu}{\frac{\sigma}{\sqrt{n}}}[/tex]

[tex]z = \frac{295 - 310}{\frac{20}{\sqrt{50}}}[/tex]

z = -5.30.

The z-statistic is of z = -5.30.

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Answer:

  $793

Step-by-step explanation:

The amount of money in an account earning simple interest is given by the formula ...

  A = P(1 +rt)

where P is the principal invested at rate r for t years.

__

Using the values given in the problem statement, the account balance can be found to be ...

  A = $650(1 +0.055×4) = $650×1.22 = $793

There will be $793 in the account after 4 years.

Answer:

can u show a more clear picture or tell me the numbers on it

1) The mean of set A is larger than the mean of set B.

2)The median of set A is larger than the median of set B.

A = {10, 12, 12, 6, 8, 5, 4, 10, 8, 10, 12, 12, 6}

B = {8, 8, 8, 7, 9, 7, 9, 10, 6, 8}

Mean is the ratio of the sum to the total number of observations.

Mean of set A = 115/13

Mean of set B =80/10 =8

So, the mean of set A is larger than the mean of set B.

Arranging both the sets in ascending order

A = {4, 5, 6, 6, 8, 8, 10, 10, 10 12, 12, 12, 12 }

Median of set A = middle term = 7th term = 10

Similarly, the median of set B =8

So, the median of set A is larger than the median of set B.

Thus, 1) The mean of set A is larger than the mean of set B.

2)The median of set A is larger than the median of set B.

Answer:

B D E

Step-by-step explanation:

I took the assignment and these are right. :)

The expression that can be used to represent Rebekah's age in years given Yvonne's age is 3y - 1.

Mathematical expressions are statements that contain a combination of numbers and variables.

Given that Yvonne's age is y.

Rebekah's age = one less than 3 times y. 'less' means subtraction and 'times' means multiplication.

(3 x y) - 1

3y - 1

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Answer:

Step-by-step explanation:

He may or not be correct. It depends on the profit you make on each sundae cup compared with the profit on the other treat.  The other treat  might give a higher profit.

Omar is correct since if 50% of the

Profit is defined as the amount gained by a person or business.

Profit = Total Revenues - Total cost

Given that,

you and Omar are talking about which two frozen treats would be best to sell.

Omar claims that because 50% of the frozen treats sold in Week 1 were sundae cups, the sundae cups accounted for 50 % of the profit.

Total number of the frozen treats = 100%

If 50% of the frozen treats sold in Week 1 were sundae cups, then the profit of the frozen treats will be 50% of the total which came from sundae cups.

Hence Omar is correct.

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#SPJ2

Answer:

y = -1x + 3 or y = -x + 3 (**That is the last option which is D**)

Step-by-step explanation:

You need to do slope-intercept formula and the slope formula.

The Slope-Intercept Formula: y=mx+b

The Slope Formula: y2 - y1 / x2-x1

Your coordinates:

(-1,4) and (1,2)

2 - 4/1- (-1)

-2/2

Simplified is -1

Your "m" in the slope-intercept formula is -1

Formula: y=-1x + b

Now, you need to find the Y-Intercept which is the "b"

Using our slope-intercept formula, you need to plug in "x1" and "y1"

4 = -1(-1) + b

4 = 1 +b

4-1 = b

3 = b

So your equation is:

y = -1x + 3 or y = -x + 3

The surface area of the covering of the cone to the nearest square inches is 788 inches²

surface area of a cone = πr(r + l)

where

Therefore,

diameter = 2(radius)

14 = 2r

r = 14 / 2

r = 7 inches

l² = 7² + 28²

l = √49 + 784

l = √833

l = 28.8617393793

l = 28.86 inches

Therefore,

surface area = 3.14 × 7 (7 + 28.86)

surface area = 21.98 × 35.86

surface area = 788.2028

surface area = 788 inches²

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Answer: Here you go :)

Step-by-step explanation:

Hope this helps, have a nice day!

Answer:

x = -6

Step-by-step explanation:

3x + 17 = -2x - 13

==> add 2x to both sides

5x + 17 = - 13

==> subtract 17 from both sides

5x = -30

==> divide both sides by 5

x = -6

Answer:

108

Step-by-step explanation:

Answer:

18cm

if it takes 12cm to wrap 6 presents, it means it takes 2cm to wrap one present.

9 individual presents will take 2 wraps, so Dwayne needs 18cm of wrapping paper.

Sum of the interior angles of any n-side shape must equals to :

[tex](n - 2) \times 180[/tex]

Thus ;

[tex](5 - 2) \times 180 = [/tex]

[tex] 3\times 180 = [/tex]

[tex]540 \: \: degrees[/tex]

So :

[tex]x + 122 + 100 + 90 + 144 = 540[/tex]

[tex]x +456 = 540[/tex]

Subtract both sides 456

[tex]x + 456 - 456 = 540 - 456[/tex]

[tex]x = 84[/tex]

There u go...

Answer:

y=8

Step-by-step explanation:

vertical lines parallel to x axis

Answer:

14

Step-by-step explanation:

Because I looked it up

Answer:

-2

Step-by-step explanation:

Since 12 is more

12 - 14

-2

point-slope form: y-y₁ = m(x-x₁)

=============

[tex]\rightarrow \sf y - 5 = \dfrac{5}{3} (x-3)[/tex]

slope-intercept form: y = mx + b

============

[tex]\rightarrow \sf y - 5 = \dfrac{5}{3}(x)+ \dfrac{5}{3}(-3)[/tex]

[tex]\rightarrow \sf y - 5 = \dfrac{5}{3}(x)-5[/tex]

[tex]\rightarrow \sf y = \dfrac{5}{3}(x)-5+5[/tex]

[tex]\rightarrow \sf y = \dfrac{5}{3}(x)[/tex]

point slope form:-

Slope intercept form

y=mx+b

The percentage increase in the sales of hybrid cars from 2005 to 2012 is 10%.

Percentage can be described as a fraction out of an amount that is usually expressed as a number out of hundred. Percentages are a measure of frequency.

Percentage increase = (number of cars sold in 2012 / number of cars sold in2005)^(1/n) - 1

(432,798/ 205,828)^(1/8) - 1 = 10%

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The y-intercept is the b term in slope intercept form (y = mx + b) or in the form of a point (0, y).

Function 1 is in slope-intercept form, and the b term is 5.

Function 2 is given in a table, but it is easy to find the point (0, y) and y is 5.25.

5.25 > 5

Function 2 has the greater y-intercept.

Hope this helps!

Answer:

Mean: (1.5+3.8+1.3+1.6+2.9+1.4+0.9+2.3+8.4+1.3)/10 = 2.54

Lowest Number: :: 2.54 - 0.9 = 1.64 million less than mean

Highest number: :: 8.4 - 2.54 =  5.86 million more than mean mean

the question is not visible lol

→ Perimeter = 2( Length + Width)

→34 = 2x + 2(4x-3)

→34 = 2x + 8x - 6

→34 = 10x -6

→10x = 34 +6

→10 x = 40

→x = 40/10

→x = 4

Hope this helped you!

Answer:

22%

Step-by-step explanation:

formula for percentage increase:
increase/original number x 100

increase is $66 (366-300)

66/300 x 100

= 22/100 x 100

= 22

hope this helped :)

Answer:

the answer is 28 minutes

Answer:

x = 16/3, y = -1/9

Step-by-step explanation:

4x + 1 = 5(x-3y) - 6

3(x+6y) + 4 = 9y + 19

Simplify both equations

4x + 1 = 5x-15y - 6

-x + 15y = -7

3x + 18y + 4 = 9y + 19

3x + 9y = 15

Now multiply 3 on both sides for the first equation.

(easier for adding both equations)

-3x + 45y = -21

3x + 9y = 15

Add both equations

x cancels out

54 y = -6

y = -1/9

plug in to other equation

3x + 9y = 15

3x - 1 = 15

3x = 16

x = 16/3

The expected value is 50 then Carmen’s prediction is low because 200 times one-fourth is 50. Then the correct option is B.

Expectation can be taken as a weighted mean, weights being the probability of occurrence of that specific observation.

Thus, if the random variable is X, and its probability mass function is given as

[tex]E(X) = \sum_{i=1}^n( f(x_i) \times x_i)[/tex]

(n is the number of values X takes)

Carmen is going to roll an 8-sided die 200 times.

She predicts that she will roll a multiple of 4 twenty-five times.

The sample will be

Total event = 8 {1, 2, 3, 4, 5, 6, 7, 8}

Then the favorable event will be to roll an 8-sided die and get a multiple of 4. Then we have

Favorable event = 2 {4, 8}

Then the probability will be

[tex]\rm P = \dfrac{2}{8} = \dfrac{1}{4}[/tex]

A dice is rolled 200 times, then by the binomial theorem we have the expected value will be

[tex]E(x) = nP = 200 \times \dfrac{1}{4} = 50[/tex]

More about the expectation link is given below.

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Answer:

B

Step-by-step explanation:

20 + 14 + 8 + 28 = 70

70/4(we're dividing by 4 cause the no.of characters is 4)

and = 17.5

hope it really helps...!!!

Answer:

[C] 1/3 of the pizza

Step-by-step explanation:

Given that:

Juan and two of his friends are going to share of a pizza.

Thus, we know that:
Juan + two of his friend = 3 people

Hence, each person gets

1/3 of the pizza

Check Answer

1/3 × 3 =1 whole {whole pizza}

or we can do

1/3 + 1/3 + 1/3 = 1 whole.

We can also do this:

Numerator = how many each person gets

Denominator = Total people

For more info about Numerator and Denominator:

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Kavinsky