Of the 25 students who take a standardized test, the minimum score is 98 and the maximum score is 312. The mean score is 216. Standard deviation is 52. What is the number of standard deviations that includes all the data values?

Answers

Answer 1

Answer:

5

Step-by-step explanation:

so we can say that 5 standard deviations include all the data values.


Related Questions

A cylinder has a height of 18 feet and a diameter of 38 feet. What is its volume? Use it %
3.14 and round your answer to the nearest hundredth

Answers

Answer: 20,403.72ft3

Step-by-step explanation:Volume formula for cylinder is   = 2h

V=Volume

=pi=3.14

r=radius

h=height

Step 1: find the radius.

Diameter=38

so divide 38 by 2

=19

Step 2: Plug in and solve for Volume.

V=3.14x19^2x18

= V=1133.54x18

= V=20,403.72

A swimming pool has a length of 12 feet, a width of 8 feet, and a depth of 9 feet. What is the volume of the pool in cubic feet?

Answers

Answer:

V=864 cubic feet

Step-by-step explanation:

Volume of a rectangular prism is Length x width x depth

So V=12x8x9

V=864 Cubic feet

Please help me!
(I have already asked the same question twice)

Answers

Answer:

[tex]A=2x^2+8x+6\ yards^2[/tex]

Step-by-step explanation:

Step 1, finding the dimensions:

The width of Stacy's room is x, so the length must be 2x. (Her length of the room is two times the width.)

Her sister's room is 2 yards longer and 3 yards wider than Stacy's room. We have:

Length: [tex]2x+2[/tex]

Width: [tex]x+3[/tex]

Great! Let's find the area now.

Step 2, finding the area:

The area of a rectangle is [tex]A=l*w[/tex], where l represents the length of the rectangle, and w represents the width of the rectangle. We already know both, so we can plug it in the equation:

[tex]A=(2x+2)(x+3)[/tex]

We can expand and simplify:

[tex]A=2x^2+2x+6x+6\\A=2x^2+8x+6\ yards^2[/tex]

I hope this helps! Let me know if you have any questions :)

three slices of mcdonald's pizza have 798 calories kylon ate 6 slices of the same pizza every saturday night for four weeks how many calories would he have consumed over four weeks.

Answers

answer:

20 out of 798

Step-by-step explanation:

6x4=20

2V2 km
2 km
X
A) 2V5 km
C) 2 km
B) 2V3 km
D) 4 km
HELP PLEASEE

Answers

Answer:

[tex]x=2\sqrt3\ km[/tex]

Step-by-step explanation:

Given that,

The base of a triangle = 2 km

The perpendicular height of the triangle = [tex]2\sqrt{2} \ km[/tex]

We need to find the value of x. It is the Hypotenuse of the triangle. It can be solved as :

[tex]x=\sqrt{(2\sqrt{2})^2+2^2 } \\\\=2\sqrt{2+1 } \\\\=2\sqrt3\ km[/tex]

So, the value of x is equal to [tex]2\sqrt3\ km[/tex].

Simplify
7p2 x 3p
14p4

Answers

Answer:

294(p)^7

Step-by-step explanation:

7(p)^2 x 3p x 14(p)^4

=> 7 x 3 x 14 x (p)^2 x (p) x (p)^4

=> 21 x 14 x (p)^(2+1+4)

=> 294(p)^7

Based on the side lengths given (a, b, and c), which triangles are right triangles?

Answers

Answer:

It's the third option.

Step-by-step explanation:

the answer is b and c

sorry if im wrong

Find the domain of the graphed function. A.x>=0 B. x is all real numbers. C.-9<=x<=5 D.0<=x<=10

Answers

The domain of the function represented by the graph is x ≥ 0

How to determine the domain of the graph?

The function is represented by the graph of the function

From the given graph, we have the following observations

The graph is a trigonometric graphThe x values of the graph starts from 0 and increases towards the positive axis

This means that the function has a domain of all set of real values greater than or equal to 0

This is represented as

x ≥ 0

So, the domain is x ≥ 0

Read more about domain at

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40% of Ms smarts class did their homework last night if there are 30 students in the class how many did there homework last night?

Answers

12 students

Step-by-step explanation:

40 % ×30 students = 1200 ÷ 100% =12students

A number is double of another number. If the difference of the numbers is twenty find the numbers​

Answers

Answer:

20 and 40

Step-by-step explanation:

20 doubled is 40

The difference is 20

Hope this helps! :)

Answer:

20,20

(20 x 2) - 20 = 20

Step-by-step explanation:

2x=y

x-y=20

(20 x 2) - 20 = 20

What is the area of the shaded part of the figure below?



Please hurry I need the answer by tomorrow!!!

Answers

Answer:

192 i think

Step-by-step explanation:

PLEASE HELP!! Look at photo

Answers

Answer:

Step-by-step explanation:

The ratio would be 36:4. The bigger number is on either side but when it concludes "for" means it's a ratio.

What’s the answer. Please help.

Answers

3x - 2 = 18

I think so because I usually take that as my equation

Answer:

The answer would be the third one, 3(x -2)=18

2
А
B
G
30°
F
D
NOTE: Angles not necessarily drawn to scale.

Answers

Answer:

x = 60°

Step-by-step explanation:

∠ CGE = ∠ FGD = 30° ( vertical angles )

∠ CGB = 90° , then

x + 30° = 90° ( subtract 30° from both sides )

x = 60°

Bab isn’t big-brained enough for mafs. Help, please?

Answers

Answer: Arc

Explanation: An arc is a segment of a curve.
The answer is arc hope this helps

Evaluate expression- Which of these answer choices are correct answer to the question

Answers

Answer:

i=10^5

eq is 2^n*i

hence 2^3*10^5

8*100000

=800.000 bacteria

pls mark as brainliest

37. Find the area of each square below. ​

Answers

Answer:

Step-by-step explanation:

a=4 square units

b=9 square units

sqrt (4+9)

(sqrt(13))^2

c= 13 square units

Please help me with this question??m

Answers

Answer:

75

Step-by-step explanation:

f(1) = 7

f(n) = 3f(n-1) + 3

So what you are trying to do here is find the recursive value (that's what it is called) for f(n). Computers love this sort of thing, but we humans have to do it slowly and carefully.

So let's try f(2)

That means that f(2) = 3*f(n-1) + 3

but if f(2) is used it means that you have to know f(2-1) which is just f(1) and we know that.

so f(2) = 3*f(1)+3

f(2) = 3*7 + 3

f(2) = 21 + 3

f(2) = 24

Now do it again. We now know F(2), so we should be able to find f(3)

f(3) = 3*f(3 - 1) + 3  

f(3) = 3*f(2) + 3      We know that f(2) = 24

f(3) = 3* 24 + 3

f(3) = 72 + 3

f(3) = 75

Help. Ill give u brainlyest

Answers

Answer:

C and E

Step-by-step explanation:

The one on the left in the tens place, is ten times more than the one on the right

C and e good luck! I hope you get it right

Explaniantion

S/9 >12 What’s the answer??????

Answers

Answer and Step-by-step explanation:

To find the answer, we need to get S by itself. To do so, we multiply both sides of the inequality by 9.

S > 108

So, S is greater than 108.

#teamtrees #PAW (Plant And Water)

S> 108 that is your answer hope that this helped, you should do well:)

Let’s revisit the situation of making a medical supply drop from a helicopter to survivors of a natural disaster. The crate can withstand an impact of 165 ft/sec. If the helicopter has to make the drop at 450ft, then the height of the crate as a function of time is: h(t) = 450 -16t2. The crate will land 5.3 sec after the drop is initiated. Will the crate and medical supplies survive? Show/explain how you know.

You need to compare the instantaneous rates of change.

Answers

Answer:

When dropped from 450 feet, the crate and medical supplies will not survive the impact

Step-by-step explanation:

The impact that the crate can withstand when dropped = 165 ft,/sec

The function for the height of the crate at 450 ft. = 450 - 16·t²

The time the crate will land after drop = 5.3 sec

Therefore, we have;

Velocity, V(t) = d(h)/dt

∴ v(t) = d(450 - 16·t²)/dt = -32·t

Given that the time the cate lands after drop, t = 5.3 seconds, we have;

The velocity at 5.3 seconds after drop, v(5.3) = -32 × 5.3 = -169.6

The velocity at 5.3 seconds after drop, v(5.3) = 169.6 ft./sec. (downwards)

Therefore, given that the velocity of the crate at 5.3 seconds (169.6 ft./sec.) is higher than the velocity at which the crate can withstand an impact (165 ft./sec.) the crate and medical supplies will not survive.

What is the length of line
segment AB?

Answers

(2) step by step below

If a randomly thrown dart hits the board below, what is the probability it will hit the shaded region?​

Answers

4 shaded areas are shaded in, 8 areas in total. 4/8, that’s 50% of the dart hitting the shaded areas. I say it’s likely

Find mZY.
42-/3
N
Y
O
84
Х
mZY =
Submit
Please help

Answers

Answer:

[tex]m\angle Y=30^{\circ}[/tex]

Step-by-step explanation:

In any right triangle, the cosine of an angle is equal to its adjacent side divided by the hypotenuse, or longest side, of the triangle.

Therefore, we have:

[tex]\cos Y=\frac{42\sqrt{3}}{84},\\Y=\arccos(\frac{42\sqrt{3}}{84})=\boxed{30^{\circ}}[/tex]


Convert 1/5 to a percentage.
And
Convert 12/100 to a decimal.
Please help.

Answers

Answer:

Step-by-step explanation:

to convert the fraction to percentage just multilpy the fraction will 100%

1/5

1/5*100%

100%/5

20%

12/100

3/25

0.12

or in division decimal point goes to the right side

12 can also be written as 12.00 so move the decimal point 2 unit right which becomes .12 .In this case we should move 2 units right because there it is divides by hundred and there are 2 zeros in number hundred.Remember how many units to move right depends upon the number it is divided with.

1/5 is equal to 20% when expressed as a percentage and 12/100 is equal to 0.12 when expressed as a decimal.

To convert 1/5 to a percentage, we can multiply it by 100.

(1/5) * 100 = 20%

Therefore, 1/5 is equal to 20% when expressed as a percentage.

To convert 12/100 to a decimal, we divide the numerator (12) by the denominator (100).

12 ÷ 100 = 0.12

Therefore, 12/100 is equal to 0.12 when expressed as a decimal.

When converting a fraction to a percentage, we multiply the fraction by 100. In this case, 1/5 is equivalent to 0.2 as a decimal. Multiplying it by 100 gives us 20%, expressing the fraction as a percentage.

When converting a fraction to a decimal, we divide the numerator by the denominator. In the case of 12/100, dividing 12 by 100 gives us the decimal representation of 0.12.

To learn more about conversions click on,

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A sphere and a cylinder have the same radius and height. The volume of the cylinder is 11 feet cubed.

Which equation gives the volume of the sphere?
V = four-thirds (11) pi
V = two-thirds (11) pi
V = four-thirds (11)
V = two-thirds (11)

Answers

Answer:

A

Step-by-step explanation:

On a piece of paper, Graph y

Answers

The answer to this question is A
The answer for it is A

find the area for this figure

Answers

8 square units

Divide figure into one square, and two triangles

Area of square:
2 x 2 = 4 square units

Area of ONE triangle:
1/2 x 2 x 2 = 2 square units
The triangles we have are both sizes, so multiply this by 2:
2 square units x 2 = 4 square units

ADD THE AREA OF SQUARE AND TRIANGLES:
4 square units + 4 square units = 8 square units

Have a nice day

60 points and brainiest!!!!!! Pls help me

Answers

Answers:

1.) x - 3, x < -3

2.) x - 3, x>3

3.) x - 3, -3 <_ x > 3

4.) 2/5, 3/6

5.) 8, 10

What is the percent decrease from 345 to 300 rounded to the nearest percent

Answers

Answer:

-13.04.

Step-by-step explanation:

Other Questions
6.05 Infections and HealthPlese don't report me i am trying to get the assigment done IntroductionContaminated water is a health risk, and not all populations have access to clean water. You are going to use household items to design, test and revise a water filtration system. New technologies undergo testing and revision before they are released to the public. This lab will simulate how the scientific process is used to solve problems. PurposeThe Purpose of your design is to filter dirt, sand and other sediment from swamp water. You do not need to make it drinkable during this design. You will begin with a water sample that has visible dirt, mud or other contaminants. You will design a way to filter the water and evaluate your design. You will not be able to test for microorganisms or to filter them out during this design process. Do not test the water by drinking it. Important: Do NOT drink the water in your experiment. MaterialsSwamp water (You can get this from an outside source like a hole in the ground, puddle, lake, river or swamp. Or, you may add dirt and sediment to tap water.) The starting sample should have visible dirt or sediment.You may use any household materials for your water filtration system. Here are some suggestions:CheeseclothOId t-shirtCoffee filters PantyhoseCotton ballsSock FunnelWater bottleData for Design One (6 points)Describe the appearance and smell of the swamp water before and after filtration. Use complete sentences and detailed examples.Skilled Scientist level from Rubric: Student gives thorough details about the appearance and smell of the water before and after the filtration for Design One and Design Two. Water before filtrationWater after filtrationDescription of appearanceDescription of smell or other physical characteristicsRate the visible cleanliness of the water on a scale of 1 to 10 with 10 being the cleanest.Feedback ( 5 points)Consulat a peer or a family member about ways your design could be improved. Describe the feedback and provide the name of the reviewer. These are only suggestions that you can use to plan for Design Two. Use complete sentences and detailed examples. Skilled Scientist level from Rubric: Student thoroughly describes the feedback received from peer/family member, and it is clear a meaningful exchange about ways to improve the design took place.List the name of peer/family member and relationship:Describe the feedback given by your peer/family member. What changes do they suggest you make to your design in order to clean the water better?Planning for DesignTwo (8 points)Use this space to plan out how to improve your water filter. Based on the feedback you received, what part are you trying to improve? Why did you make the changes that you did? Use complete sentences and detailed examples. You may include sketches or diagrams.Skilled Scientist level from Rubric: Student thoroughly explains the changes for the design and gives ample details about any improvements that were made. List materials used:Describe how Design Two will work:What part of your design are you trying to improve?Why did you make the changes you did?Data for Design Two (6 points)Use the data and feedback from your first design to make changes to your water filtration system. Test your new design. Record the appearance and smell of the swamp water before and after filtration. Use complete sentences and detailed examples.Skilled Scientist level from Rubric: Student gives thorough details about the appearance and smell of the water before and after the filtration for Design One and Design Two.Water before filtrationWater after filtrationDescription of appearanceDescription of smell or other physical characteristicsRate the visible cleanliness of the water on a scale of 1 to 10 with 10 being the cleanest.Conclusion (10 points)Use your data from Design One and Design Two to answer the following questions. Use complete sentences and detailed examples. Skilled Scientist level from Rubric: Student answers all questions using ample details and showing critical thinking skills to reflect on the design process. Summarize the appearance and smell of the swamp water before and after the filtering process using Design One.2. Describe the changes you made to your water filtration system.3. What feedback helped you make changes to your water filtration system? 4. 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Inhow many hours will the two trains be 88.2 miles apart?O 4.7 hoursO 4.2 hoursO 2.1 hoursO 8.4 hours what is the scale factor from ABC to DEF?