Please help me with this math.

By applying z-score formula we got that if a reporter determines a mean order time of 63 minutes then value o Z is 1.19

Standard deviation is a number used to tell how measurements for a group are spread out from the average (mean), or expected value

Here given that

The owners of an eyeglass store claim that they fill customers' orders, on average, in 60 minutes with a standard deviation of 15. 9 minutes. Based on a random sample of 40 orders, a reporter determines a mean order time of 63 minutes

mean=μ=60

standard deviation=σ=15.9

number of sample=n=40

[tex]\bar{x}=63 \\[/tex]

Now we can calculate z by z-score formula as

[tex]z=\frac{\bar{x}-\mu}{\frac{\sigma}{\sqrt{n}}} \\\\&=\frac{63-60}{\frac{15 \cdot 9}{40}} \\ \\=\frac{3}{2.5140} \\ \\=1.19\end{aligned}[/tex]

By applying z-score formula we got that if a reporter determines a mean order time of 63 minutes then value o Z is 1.19

To learn more about standard deviation visit :https://brainly.com/question/12402189

Answer:

1.19

Step-by-step explanation:

Answer:

Using the equation form y = MX + b where a is the slope of the line and b is the y-intercept.

The line that is parallel this the line with equation 5x + y = 11 will have the SAME SLOPE as this line BUT the y-intercept will be -8 (as stated in the problem.)

Rewrite 5x + y = 11 to the standard form to yield the slope of that line.

So 5x + y = 11 becomes y = -5x + 11 where the slope is -5.

So the equation of the line that you want is then...y = -5x - 8. It satisfies both conditions.

Answer:

Area = 114 m2

Step-by-step explanation:

Area of the Figure = Area of Rectangle ABCD - Area of Rectangle HGFE

Area of the Figure = 12*14 - 9*6 = 168 - 54 = 114

Answer:

a

Step-by-step explanation:

x+y=7

y=-x+7

Answer:

Step-by-step explanation:

if you take it by the first number then you will divide the firsts to the nearest number that applies the first number

The convert rate is $1 = 6.35 yuan.

-> $24000 = 6.35 x 24000 = 152400 yuan (152481.60)

Answer:

Step-by-step explanation:

Multiply the amount by 0.46 and subtract from the amount.

The difference between amount  and 0.46 * amount is the answer.

Answer:

The value of cos 180 is equal to -1

byjuscom

Answer: (18,2)

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

Converting an improper fraction to a mixed number involves dividing the numerator by the denominator.

17/5 = 3 with remainder of 2

so it will be 3 -2/5

Answer:

  A)  7/5

Step-by-step explanation:

An exponential equation like this can be solved by using logarithms, or by rewriting the bases so they are the same.

  3^(2h-1) = 27^(-h+2)

Using 27 = 3^3, we can write the equation in terms of powers of 3:

  3^(2h-1) = (3^3)^(-h+2)

  3^(2h -1) = 3^(-3h +6)

Equating exponents gives ...

  2h -1 = -3h +6

  5h = 7 . . . . . . . . . add 1+3h

  h = 7/5 . . . . . . . divide by 5

__

Additional comment

When solving this using a graphing calculator, it is often convenient to write the equation in such a way that the solution is an x-intercept. Here, we can do that by subtracting the right-side expression from both sides:

  3^(2h-1) -27^(-h+2) = 0

The solution is h = 1.4 = 7/5.

Answer:

h=7/5

hope this helps!

Answer:

£3.15 (nearest pence)

Step-by-step explanation:

If the price of a coffee has increased by 7% then the final price of the coffee is:  100% + 7% = 107% of the original price.

Therefore, to find the original price of the coffee:

  original price ÷ 107 × 100

= 3.37 ÷ 107 × 100

= £3.15 (nearest pence)

Answer:

83.333333333

Step-by-step explanation:

add 70+90+90=250/3= 83.3333333

Answer:

5 miles/ hour please mark brainlist dont have to tho lol

Step-by-step explanation:

Answer:

The transformation that maps f into g is a translation transformation,

involving the addition of k to the value of f(x).

The value of k that transforms f into g is; k = -5

Reasons:

Points on the graph of g(x) are; (0, -3) and (0, 1)

The equation of g(x) is; y - (-3) = 4·x, which gives;

y = 4·x - 3

The y-intercept = -3

Points on the graph of f(x) are; (-1 -2) and (0, 2)

The equation of f(x) is; y - (-2) = 4·(x - (-1)), which gives;

y = 4·x + 4 - 2 = 4·x + 2

The y-intercept = 2

The slopes of the graphs of f(x) and g(x) are equal, therefore, f(x) ║ g(x)

The difference or the transformation that takes the y-intercept of f(x) to the

y-intercept of g(x) is; k = y-intercept(g(x)) - y-intercept(f(x)) = -3 - 2 = -5

Therefore, k = -5

Which gives;

g(x) = f(x) - 5

The value of k that transforms f into g is; k = -5

Learn more here:

brainly.com/question/23570234

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Answer:

Option C is correctThe initial value of the exponential function shown on the graph is, 2Step-by-step explanation:A function is a mathematical relation in which we input values of a domain that generate output values of a range. Initial value of a function is the output value of the function  when the input value is 0.As shown in the graph: the exponential function cut through the point (0,2)  , where y=2  when x=0.therefore, the initial value of the given exponential function shown on the graph is, 2.

Step-by-step explanation:

Pls, choose me as brainliest!

Answer:

c

Step-by-step explanation: because I know trust me ;)

Answer:

d is the answer to the question

Answer:

x+8 / x-4

Step-by-step explanation:

Factor the top and bottom (numerator and denominator).

Simplify (cancel what's the same on top and bottom)

See image.

Answer:

$1.50

Step-by-step explanation:

50% is one half. and one half of $3 is $1.50.

please give brainliest!!

Answer:

the x is not a value yet  

Step-by-step explanation:

Answer:

Balloon A has 2/5 gallons and Balloon B has 1/5.

Step-by-step explanation:

Hope this helps!
If it did, I appreciate you giving me brainiest :)

if not, have a wonderful day!!!

Answer:

not being rude but...

You told us that the volume of both balloons had a volume of 3/5 a gallon now you are saying one of them is has a larger volume than another it just doesn't make sense.

Answer:

10.=138,037.5311

Step-by-step explanation:

the first year=26000

2nd year_100%=26000

103%=?

=26780

3rd=27583.4

4th=28410.902

5th=29263.22906

total=138,037.5311

Answer:

I will need a photo to answer this

Step-by-step explanation:

Kindly, please upload a photo, TQ!

Question: Quadrilateral GABE is a square. Assume that point A is the centre of the circle. If the circumference (perimeter of a circle) is 201 ft., find AE.

Solution:

πd = C

πd = 201

3.14(d) = 201

diameter  = 64.01

radius is half of the diameter.

radius = 64.01/2

radius = 32

GA = 32

As its sqaure, all sides are equal

GA  = AB = GE = EB = 32

using Pythagoras theorem:

32² + 32² = AE²

AE = √2048.8

AE = 45.3 ft

Answer:

Step-by-step explanation:

C = πd = 2πr

201 = 2*3.14*AB

AB = 201 / (2*3.14) = 32

AE is the diagonal of square ABEG

Using Pythagoras theorem,

AE^2 = AB^2 + BE^2 = 2*AB^2

AE^2 = 2*32^2

AE = sqrt(2*32^2)

= 45.255

= 45.3 ft

Answer:

[tex]y=5x+15[/tex]

Step-by-step explanation:

Since this situation is a linear relationship between the number of movies and the total cost, we need to determine the slope of the line given our two ordered pairs [tex](x_1,y_1)\rightarrow(5,40)[/tex] and [tex](x_2,y_2)\rightarrow(12,75)[/tex]:

[tex]m=\frac{y_2-y_1}{x_2-x_1}\\ \\m=\frac{75-40}{12-5}\\ \\m=\frac{35}{7}\\ \\m=5[/tex]

Thus, our equation so far is [tex]y=5x+b[/tex]. Next, we need to find our y-intercept, [tex]b[/tex], which represents our flat fee. We do so by using one of our original given ordered pairs:

[tex]y=5x+b\\\\40=5(5)+b\\\\40=25+b\\\\15=b[/tex]

Therefore, our final equation for the function is [tex]y=5x+15[/tex]

Answer:

L 107°

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Answer:

The square root of 18.3 would be: 4.27784992724

Step-by-step explanation:

Answer:

Step-by-step explanation:

I wish I could help you but I’m only in elementary

Answer:

Surface Area = [tex]530yd^2[/tex]

Step-by-step explanation:

*This answer is for the problem on the left that seems unanswered*

Firstly, you must understand that the surface area of an irregular polygon like the one in the problem must be found by dividing its faces into rectangles and finding the sum of the areas of those rectangles.

Another way to say this is that the surface areas of these solids can be found by adding up the areas of the rectangles that make their faces.

You will see that I attached a picture that divides the solid's faces into subsections, labelled a through i, including faces that are not visible in the diagram.

If you divided the solid's faces in the same way as the picture, the surface area is found as follows:

[tex]Area_A=12*7=84yd^2\\Area_B=12*4=48yd^2\\Area_C=12*4=48yd^2\\Area_D=4*4=16yd^2\\Area_E=11*3=33yd^2\\Area_F=12*3=36yd^2\\Area_G(notVisible)=12*11=132yd^2\\Area_H(notVisible)=12*7=84yd^2\\Area_I(notVisible)=Area_E+Area_D=33+16=49yd^2[/tex]

By the way, [tex]yd^{2}[/tex] is the same as "square yards".

After finding the areas of each rectangle, add them all up to get your final answer:

[tex]SurfaceArea=530yd^2[/tex]