The table shows the heights of 40 students in a class.

-Height (h)
in cm-
120 < t < 124
124 < t < 128
128 < t < 132
132 <t< 136
136 <t< 140
__________
-Frequency-
7
8
13
9
3
__________
a) Calculate an estimate for the mean height of the students ​

Answers

Answer 1

Answer:

129.3

Step-by-step explanation:

You have to find the number in the middle of all of the heights and multiply them by the all of the frequency (122x7 etc). When you have those answers, add them together and divide the answer by 40.


Related Questions

Show steps how to solve for y!!!!!
2y+2=3y/2
Please help me

Answers

[tex]\text{Solve for y:}\\\\2y+2=\frac{3y}{2}\\\\\text{Multiply both sides by 2 to cancel the denominator}\\\\4y+4=3y\\\\\text{Subtract 3y from both sides}\\\\y+4=0\\\\\text{Subtract 4 from both sides}\\\\\boxed{y=-4}[/tex]

Answer:-4

Step-by-step explanation:

2y+2=3y/2

Cross multiply

2(2y+2)=3y

Open bracket

4y+4=3y

Collect like terms

4y-3y=-4

y=-4

What is the length of a cube has a volume of 0.2l6 ft^3

Answers

Answer:

  0.6 ft

Step-by-step explanation:

The volume is the cube of the edge length, so the edge length is the cube root of the volume.

  ∛(0.216 ft³) = 0.6 ft

The edge length is 0.6 ft.

line s has a slope of 2/5. line t is perpendicular to s. what is the slope of line t​

Answers

Answer:

-5/2

Step-by-step explanation:

In order to find the slope of a perpendicular line: negate the reciprocal of the original slope

A flagpole casts a shadow that is 36 feet long, while a yardstick casts a shadow of 48 inches long. About how tall is the flagpole?

Answers

Answer:

  27 ft

Step-by-step explanation:

The object is 3/4 times as tall as the shadow it makes. (1 yd/48" = 3'/4') So, the flagpole will be 3/4 times 36 ft, or 27 ft high.

The flagpole is 27 ft tall.

In ΔPQR, the measure of ∠R=90°, RP = 9.9 feet, and QR = 3.2 feet. Find the measure of ∠P to the nearest tenth of a degree.

Answers

Answer:

17.9

Step-by-step explanation:

Please help ASAP! I will mark Brainliest! Please answer CORRECTLY! No guessing.

Answers

Answer:

27

Step-by-step explanation:

Input 5 for all x-values.

If that is an equal sign...

1/9*(3^5)

With PEMDAS, exponents are done before multiplication.

1/9*243

= 27

Please what is the length of AC? Please 1 day no answer.

Answers

Answer: AC = 2.33

Step-by-step explanation:

use tangent to find the missing side

Tangent = opposite/adjacent

tan B = ?/5

tan 25 = ?/5

multiply each side by 5

? = 2.33153829.....

so

AC = 2.33

During Ashland High School basketball games, the snack bar sells both cheese and pepperoni pizza slices. Last night, the snack bar sold 143 slices of pizza. They sold 10 times as many pepperoni slices as cheese slices.

How many slices of cheese pizza did the snack bar sell last night?

slices of cheese pizza

Answers

Answer:

  13 slices of cheese pizza

Step-by-step explanation:

Consider grouping the slices so there are 10 pepperoni and 1 cheese in each group of 11. Then 143 slices represents 143/11 = 13 groups. Since there is 1 cheese slice in each group, ...

  13 slices of cheese pizza were sold

Write the fraction from least to greatest: 1/8, 1/3, 1/8

Answers

Answer:

Start with making them equal.

1/8 --> 3/24

1/8 --> 3/24

1/3 --> 8/24

Now order them.

1/8, 1/8, 1/3.

Hope this helps ;)

heeeeeeeeeeeeeeellllllllllllllllllllpppppppppp

Answers

Answer:

Keep the circle closed like it is and draw an incresing line (towards the positive numbers)(basically towards the right) with the arrow at the end of it

Step-by-step explanation:

Trina has a total of 32 crayons. How much boxes of crayons did she buy.

Answers

Answer:

Depends on the type of box, but most likely one box of crayons because 32 packs are sold.

Do you have answer choices?

Simon is building a ramp in the shape of a triangular prism. He plans to paint each face of the ramp. What is the total surface area of the ramp?

A triangular prism. The base has a length of 8 feet and height of 4 feet. A rectangular side has a base of 8 feet and height of 5 feet. Another rectangular side has a base of 8 feet and height of 3 feet. The triangular sides have a base of 4 feet and height of 3 feet.
68 square feet
96 square feet
108 square feet
114 square feet

Answers

Answer:

  108 square feet

Step-by-step explanation:

When you say "triangular prism" it means the base is a triangle and the lateral faces are all rectangles. It doesn't matter which side is lying on the ground.

So, we see this is a triangular prism with a 3-4-5 right triangle as a base, and a "height" of 8 feet.

Its total surface area is the area of the two triangle bases plus the area of the three rectangular faces:

  A = 2(1/2)(4·3) +8(3 +4 +5) = 12 +96 = 108 . . . . . square feet

Answer:

its C

Step-by-step explanation:

2 Points
You and your friend enter a drawing with 3 different prizes. A total of 12
people entered the drawing, and prizes are awarded randomly.
There are 1320 ways to award the prizes.
What is the probability that you win first prize and your friend wins second
prize?
O A
B.
10
1320
O O O O
C.
12
1320
D.
1320

Answers

creo que la respuesta es D

Answer:10/1320

Step-by-step explanation:

Dixon and his little sister Ariadne stand next to each other on the playground on a sunny afternoon. Their mother measures their shadows. Ariadne’s shadow is 15 feet long and Dixon’s shadow is 18 feet long. If Ariadne is 5 feet tall , how tall is Dixon ?

Answers

Hey there! I'm happy to help you!

To solve this, we can set up a proportion below! I will put the data in table, fraction, and ratio form so you can see different ways to visualize it.

                       HEIGHT         LENGTH OF SHADOW

DIXON               ?                              18

ARIADNE           5                              15

 

                     or

[tex]\frac{height}{length} =\frac{5}{15} =\frac{h}{18}[/tex]

                     or

5:15= h:18

As we can see, we see that Ariadne's length of shadow is three times as large as her height. Therefore, that means that Dixon's height will be 1/3 of the length of his shadow!

18/3= 6

We can also use the cross multiplying method with our proportion and then solve for h!

h=5*18/15

h=90/15

h=6

Therefore, Dixon is six feet tall.

I hope that this helps! Have a great day!


The slope of the line between the points (3,-1) and (5, 1) is

Answers

Answer:

y = 0x + 1

When x=0, y = 1

Step-by-step explanation:

find the second term in the sequence b(1)=16 b(n)=b(n-1)+1

Answers

Answer:17

Step-by-step explanation:

b(1)=16

b(n)=b(n-1)+1

b(2)=16(2-1)+1

b(2)=16(1)+1

b(2)=16+1

b(2)=17

Someone please help me with math. Thank You

Answers

Answer:

4) 64 cubic inches

Step-by-step explanation:

8x8 = 64

how do u solve 3(1 - 3g) = -8g + 14 ?

Answers

Answer:

3 - 9g = -8g + 4

-9g + 8g = 4 -3

g = -1

What is the estimated sum?

Round each number to the nearest hundred before adding.

521,370 + 26,839




A 548,100


B 548,200


C 548,000


D 547,000
Pls help

Answers

Answer:

B

Step-by-step explanation:

521,370 would round to 521,400

26,839 would round to 27,800

and adding them would be

548,200

اذا كانت س زاويه حاده و كان جاس= ٣/٥ فان ظا س=؟؟​

Answers

Alright idk y u said that here but ok

Pls help with this one I will give brainliest thank you!

Answers

Answer:

B. 10 in.

Step-by-step explanation:

When you do length times width times height 10*10*10 equals 1000

10*10=100 and 100*10=1000

Answer:10 feet

Step-by-step explanation:

edge=[tex]\sqrt[3]{1000}[/tex]= 10 so the answer is B

What is the length of AC? PLEASE HELP ASAP WILL GIVE BRAINLIEST TY

Answers

Answer:

2.33 units

Step-by-step explanation:

[tex]\tan 25\degree =\frac{AC}{5}\\\\0.46630 = \frac{AC}{5}\\\\AC = 0.46630 \times 5\\AC =2.3315\\AC = 2.33 \: units[/tex]

how do i factor the "common factor out of each expression?" ex:

12n^6 + 27n^2 - 18


whoever answers correct/ first ill give brainliest

Answers

Answer:

Step-by-step explanation:

A "common factor" is either a constant coefficient or a variable which shows up in every term of a given algebraic expression.  

Here we start with the expression  12n^6 + 27n^2 - 18.  'n' does not show up in every term and thus could not be a "common factor" of this expression.  On the other hand, 12, 27 and -18 can all be divided by 3, and so 3 is a common factor.

12n^6 + 27n^2 - 18 = 3(4n^6 + 9n^2 - 6)

1)  Identify the common factor (here it's 3)

2) Factor that out of the given expression:   3(4n^6 + 9n^2 - 6)

OMG THIS QUESTION IS SO HARD WILL RATE IF U GET IT

Answers

These aren't too hard -- you should really try to do them yourself.

The upper triangle has base 2+2=4 and height 3.2.  The lower one has base 4 and height 4.  Of course the area of a triangle half base times height.

Area = (1/2) 4(3.2) + (1/2)(4)(4) = 2(7.2) = 14.4

Answer: 14.4 sq ft

A manufacturer of bolts has a​ quality-control policy that requires it to destroy any bolts that are more than 4 4 standard deviations from the mean. The​ quality-control engineer knows that the bolts coming off the assembly line have mean length of 13 13 cm with a standard deviation of 0.10 0.10 cm. For what lengths will a bolt be​ destroyed?

Answers

Answer:

13.4 centimeters

Step-by-step explanation:

In this case to calculate the distance we must take into account the data that they give us in the exercise.

The final length would be equal to the initial length added to the product of standard deviations from the mean and standard deviation given by the engineer, like this:

L = 13 + 4 * 0.10

L = 13 + 0.4

L 13.4

That means that lengths will a bolt be destroyed when the value is 13.4 centimeters

FInd the permiter of a square with an area of 702.25 square yards

Answers

Answer:

The perimeter of the square is 106yd

Step-by-step explanation:

To solve this we first have to know the formula to calculate the area of ​​a square

a = area = 702.25yd²

s = side

a = s * s

we replace the values

702.25yd² = s * s

702.25yd² = s²

√(702.25yd²) = s

26.5yd = s

The side of the square is 26.5yd

Now we have to use the formula to calculate the perimeter of ​​a square

p = perimeter

s = side = 26.5yd

p = 4 * s

we replace with the known values

p = 4 * 26.5yd

p = 106yd

The perimeter of the square is 106yd

Answer:106 yards

Step-by-step explanation:

Length=L

Area=702.5

Area of square=L x L

702.5=L X L

702.5=L^2

L=√(702.5)

L=26.50

perimeter of square=4 x L

Perimeter of square=4 x 26.50

Perimeter of square=106

Perimeter of square=106 yards

PLEASE ANSWER AS QUICKLY AS POSSIBLE

Answers

Answer: D

Step-by-step explanation: Both the Equality property and the Identity property

Factor the expression. 35g2 - 2gh - 24h2

Answers

Answer:(7g-6h)(5g+4h)

Step-by-step explanation:

35g^2-2gh-24h^2

35g^2+28gh-30gh-24h^2

7g(5g+4h)-6h(5g+4h)

(7g-6h)(5g+4h)

There were 208 tickets purchased for a major league baseball game. The lower box  tickets cost ​$12.50 and the upper box tickets cost ​$10.00. The total amount of money spent was ​$2187.50. How many of each kind of ticket were​ purchased?

Answers

Answer:

so 189(from 189.66) lower box tickets are sold and 18 upper box tickets are sold

Step-by-step explanation:

lets take "x" as the # of lower box tickets

and "y" as the number of upper box tickets

so in total the number of tickets sold was 208

so  x+y=208

next, we know that each lower box ticket costs 12.50 and each upper box tickets costs 10 and the total amount of money spent was $2187.50 so:

12.5x+10y=2187.50

lets subtract "x" from both sides in first equation to find value of y

y=208-x

now substitute y in equation number 2:

12.5x-10(208-x)=2187.5

12.5x-2080+10x=2187.5

22.5x-2080=2187.5

22.5x=4267.5

x=189.666

so 189 tickets lower box tickets were purchased now, substitute 190 in equation 1 to find value of "y"

y=208-190

y=18

so 189(from 189.66) lower box tickets are sold and 18 upper box tickets are sold

Help timed test! At which root does the graph...

Answers

Answer:

x = -2

Step-by-step explanation:

The way you can tell if the graph is going to cross the x-axis or just touch the x-axis is by looking at the power of the factor.

(x - 5)^3 has a power of 3 which is an ODD number. An ODD power means that the graph will cross through the x-axis.

(x + 2)^2 has a power of 2 which is an EVEN number. An EVEN power means that the graph will touch the x-axis.

To find where it will touch the axis set the factor equal to zero and solve.

(x + 2) = 0

subtract 2 from both sides

x = -2

Other Questions
find the missing angle in the triangle 100 POINTS.PLEASE PROVIDES STEPS.FIND THE INTEGRALS. Inductive reasoning is weaker than deductive reasoning because it:A. begins with a big idea that is supported with specifics.B. counts on the emotions of the audience to come to a decision.C. includes support from unreliable experts to make a point.D. comes to a general conclusion based on a specific observation. The price of a home is $210,000. The bank requires a 5% down payment and three points at the time of closing. The cost of the home is financed with a 30-year fixed-rate mortgage at 7%. a. Find the required down payment. b. Find the amount of the mortgage. c. How much must be paid for the three points at closing? d. Find the total cost of interest over 30 years, to the nearest dollar. Help me please. Im giving 20 pointsBrenda is playing hide-and-seek with Cody and Lara. Cody is hiding 16 meterssouth of Brenda, and Lara is hiding due east of Cody. If Brenda is 20 meters fromLara, how far apart are Cody and Lara? Mrs. Pattersons bakery sells fruit pastries in packages of 15, while chocolate pastries come in packages of 12. What is the smallest number of each type of package you need to buy to get the same number of both type of pastries? Answer: package (s) of fruits, package (s) of chocolate i have no clue how to answer this Write in slope-intercept form an equation of the line that passes through the given points. (2, 4), (3, 6) y= Solve(I 15)2 = 912.186.9- 12,-18-6.9 Onur is floating freely in outer space with a propulsion thruster to help him counteract the pull of gravity. The gravitational forces pulling on his body are negligible except for those from the nearest planet (described by force vector \purple{\vec p}\, p start color #9d38bd, p, with, vector, on top, end color #9d38bd) and the nearest star (described by force vector \blue{\vec s}\, s start color #6495ed, s, with, vector, on top, end color #6495ed). Onur, the planet, and the star are in the same plane, so we can describe the gravitational forces as two-dimensional vectors. \purple{\vec{p}} = (4,6) p =(4,6)start color #9d38bd, p, with, vector, on top, end color #9d38bd, equals, left parenthesis, 4, comma, 6, right parenthesis \blue{\vec{s}} = (1,7) s =(1,7)start color #6495ed, s, with, vector, on top, end color #6495ed, equals, left parenthesis, 1, comma, 7, right parenthesis (Forces are given in newtons, \text{N}Nstart text, N, end text.) In two or more complete sentences, compare the number of x-intercepts in the graph of f(x) = x^2 to the number of x-intercepts in the graph of g(x) = -x^2 -5. Be sure to include the transformations that occurred between the parent function f(x) and its image g(x). How did Northerners react to the Dred Scott decision? Read the following passage.He was tall and broad shouldered but approachable. Hisgruff voice often startled people, but he was usually sayingsomething so nice, they relaxed quickly. He looked like agrizzly bear but acted like a teddy bear.Which most likely explains why the author describes the character as both a"grizzly bear" and a "teddy bear"?OA. To make the reader realize that everyone is exactly what theyseem to beOB. To show how large, strong, and loud the character isOC. To reveal the contradiction between the character's appearanceand personalityOD. To prove that both types of bears can be scary and friendly what is the answer to 6a-15< 2(3a+4)? Who won the Peloponnesian War? How did they win? Solve 20x = 10 for x. A.x = 1/2 B.x = 1.5 C.x = 2 D.x = 10 Why is population size important for a war effort? When population grows past the ecosystems carrying capacity, what happens to the population? A. Continues to growB. The population starts to die off to return to carrying capacity C. The population will go extinct due to lack of resources D. The population grows, then finds a new carrying capacity. PLEASE HELP ASAP!!A candy store sells different sized bags of jelly beans. The line plot shows the weights of ten bags.Weight of Jelly Bean Bags Which of the following describes the role of the judicial branch of Georgia's government?A the judicial branch breaks the lawB. the judicial branch creates the lawocthe judicial branch enforces the lawD. the judicial branch interprets the law