calculate the estimate of the mean height of the students in cm and explain your answer
Answers
Step-by-step explanation:
we find the average height of each height first,
t¹= (120+124)/2
=244/2
=122
t²= (124+128)/2
t²= 252/2
t²= 126
t³= (128+132)/2
t³= 260/2
t³= 130
t⁴= (132+136)/2
t⁴= 268/2
t⁴ =134
t⁵= (136+140)/2
t⁵= 276/2
t⁵= 138
so multiplying each height by its frequency we can find the total height, so we have..
total height= (122*7)+(126*8)+(130*13)+(134*9)+(138*3)
= 854+1008+1690+1206+414
= 5172
mean height = total height/total frequency
= 5172/40
=129.3
Related Questions
Solve for the missing angle measures
Answers
Answer:
Set 1 angles a and c are 62
Set 2 angles b and d are 120
Step-by-step explanation:
angle a = angle c = 62
angle b = angle d = 120
Amber needs to rent a car for one day while she is on vacation in Pittsburgh. It
cost $7.50 per hour to rent the car as well as a $35 rental fee. Which equation
matches the situation above? *
O y = 7.50x
O y = 35x +7.50
O y = 7.50x + 35
O y = 35x
PLEASE HELP ASAP
Answers
Answer:
3 i think :0
Step-by-step explanation:
Answer:
y=7.50x+35
Step-by-step explanation:
This one is the correct answer. If you are having trouble, I highly recommend you look closely at the question. $7.50 per hour- per hour is the keyword. That means that you put the x next to $7.50. 35 is one charge, and it is not continuing so you leave it as 35.
Someone please answer the questions and help me:(
Answers
Answer:
-3,-5,-4,-1,1-1,1-1,,3,3-,-3,-4,5-,-8,9--,5,3
Step-by-step explanation:
B) (-2,-5) AOS X= -2
C) (3,0) AOS x= 3
F) (0,2) AOS x= 0
what is the slope of the line passing through the points (-3,4) and (2, -1)
Answers
Answer:
slople = -1
Step-by-step explanation:
(x₁ , y₁) = (-3, 4) & (x₂ , y₂) = (2 , -1)
[tex]slope =\frac{y_{2}-y_{1}}{x_{2}-x_{1}}\\\\\\=\frac{-1-4}{2-[-3]}\\\\\\=\frac{-1-4}{2+3}\\\\\\=\frac{-5}{5}\\\\= -1[/tex]
To plot (5,- 9), in which direction do you move
first?
Answers
Answer: You are gonna want to move right 5 times then down nine times!
Step-by-step explanation:
Answer:
if you are doing a number line then you start at 0 then go to right 5 times go to the left 7 times which would give you -2
Step-by-step explanation:
Work out the length x pls
Answers
Answer:
~17.67
Step-by-step explanation:
Pythagorean theorem
a^2+b^2=c^2
7.5^2+16^2=c^2
~17.67
Answer:
Step-by-step explanation:
We use pythagorus theorem which is; a²+b²=c²
(16cm)²+(75/10cm)²=x²
256cm²+225/4cm²=x²
1249/4cm²=x²
√1249/4cm²=√x²
312.25cm=x
Rearrange all and make the letter in red the subject
help help help!
Answers
Answer:
q =r -3p
p= t-mn
p=[r -3q]/2
m=rn
d=(vw)/s
A 6-column table with 3 rows in the second, third, and fifth columns and 1 row in the other columns. The first column labeled Number of Washers has entry 1 washer mass = 4.9 grams. The second column labeled Trial has entries trial number 1, trial number 2, trial number 3. The third and fourth columns labeled Time to travel 0.25 meters t subscript 1 (seconds) have entries in the third column 2.24, 2.21, 2.23 and average in the fourth column. The fifth and sixth columns labeled time to travel 0.5 meters t subscript 2 (seconds) have entries in the fifth column 3.16, 3.08, 3.15 and in the sixth column average.
The average time that it takes for the car to travel the first 0.25m is
s.
The average time to travel just between 0.25 m and 0.50 m is
s.
Given the time taken to travel the second 0.25 m section, the velocity would be
m/s.
Answers
Answer:
2.23
.90
.28
Step-by-step explanation:
Answer: your answer are 2.23, .90, .28
Step-by-step explanation:
your answer are 2.23, .90, .28
i need help w this pls asap
Answers
Answer:
x=125, y=125
Step-by-step explanation:
180-55=125
x and y are alternate angles
Answer:
x=125
y= 125
Step-by-step explanation:
x + 55 = 180
y = x
alternate interior angles are equal
PLEASE HELP!!!
What is the solution to the given inequality?
1-4x2-1
*x>-1
O xs-1
O x23
Oxs 3
Answers
people cant read that
True or false dilation increases the measure of angles
Answers
Answer:
It is false. Dilatation does not increase the measure of angles.
Step-by-step explanation:
Three numbers form a GP. If the first and
third numbers are 5 and 245 respectively, find
wo possible values for the middle number.
Answers
Answer:
I don't get it like you messed up on it
Step-by-step explanation:
Calculate the slope between the points: (4, 5) and (7, 9)
Answers
Answer:
m=4/3
Step-by-step explanation:
the slope is equal to 4/3
The slope between the points: (4, 5) and (7, 9) is 4/3.
What is slope?A line's slope is determined by how its y coordinate changes in relation to how its x coordinate changes. y and x are the net changes in the y and x coordinates, respectively. Therefore, it is possible to write the change in y coordinate with respect to the change in x coordinate as,
m = Δy/Δx where, m is the slope
Given:
Points (4, 5) and (7, 9)
so, the slope is
slope = (9-5)/ (7-4)
slope = 4 /3
slope = 1.333
Hence, the slope is 4/3.
Learn more about slope here:
https://brainly.com/question/3605446
#SPJ2
50 POINTS! + Brainliest Hannah is at the supermarket to buy carrots and potatoes. If she buys 2 pounds of carrots and 3 pounds of potatoes, it will cost her a total of $8, and if she buys 4 pounds of carrots and 4 pounds of potatoes, it will cost her a total of $13. Which of these statements is correct?/
Carrots cost $1.50 a pound, which is less than potatoes cost.
Carrots cost $1.75 a pound, which is more than potatoes cost.
Carrots cost $1.75 a pound, which is less than potatoes cost.
Carrots cost $1.50 a pound, which is more than potatoes cost.
Answers
Answer:
Carrots cost $ 1.75 a pound which is more than potatoes cost.
Step-by-step explanation:
What term is defined by the formula?
Answers
Problems with Equations:
1
Select the correct answer from the drop-down menu.
The value from the set {10, 11, 12, 13} that makes the equation 2(x - 5) = 12 true is
Answers
Answer:
x = 11
The value "11" makes the equation true.
2 ( x - 5 ) = 12
2 ( 11 - 5 ) = 12
2 ( 6 ) = 12
12 = 12
Step-by-step explanation:
At the end of the season, 4 basketball teams in a league are having a pizza party at a restaurant. Team Number of People Sharks 17 Wolves 21 Tigers 20 Hawks 17 Coaches 9 The restaurant manager suggests that they order one pizza for every 6 people. How many pizzas should they order? Enter your answer in the box. its confuzing
Answers
Answer: They should order 14 pizzas.
Step-by-step explanation:
Given table :
Team Number of People
Sharks 17
Wolves 21
Tigers 20
Hawks 17
Coaches 9
Total = 84
They order one pizza for every 6 people.
Total pizzas required = (Total people) ÷ 6
= 84÷ 6
= 14
Hence, They should order 14 pizzas.
Answer: 14 because if u add them all together and divide it by 6, u get 14
Step-by-step explanation:
There are 4 teams and there are the coaches who are with the teams, so you combine them all
can sumone do this plzz
Answers
Answer:
1. [tex]\frac{x}{15}[/tex] = 0.85
2. x = 12.75
Step-by-step explanation:
First, we do 12 divided by 15, which is 0.80 (80%). The question is asking how much consecutive free throws is needed to raise it to 85%.
So, and equation we make is:
[tex]\frac{x}{15}[/tex] = 0.85, where x represents the number of free throws.
Now, we solve.
Multiply each side by 15 to solve for x.
x = 12.75
12.75 consecutive free throws is needed to raise the percent to 85%.
what is (40x33)+(4)x4??
Good luck
Answers
Answer:
1336
PLZ let me know if im wrong!!!
Multiply.
7.8 x 100
7.83 x 10,000
Answers
7.83 x 10,000 = 78,300
Answer:
7.8x100= 780
7.83 x 10,000 = 78300
Step-by-step explanation:
5/3 - 1/6 and i need it now because im in school now
Answers
Answer:
9/6 or 1 1/2
Step-by-step explanation:
Make the denominators the same...
5 x2 ----> 10/6 -------> 10/6 -1/6 = 9/6
3 x2
HELP PLS BRAINLIEST FOR CORRECT ANSWER
Answers
Answer:
83
Step-by-step explanation:
Answer:
x = 59
y = 83
Step-by-step explanation:
First, you need to solve for y in order to solve for x. Using the Triangle Sum Theorem, you will find that y is 83 degrees.
Now, using the Vertical Angles Theorem, you can figure out the third angle of the triangle in which x is, 83.
Using the Triangle Sum Theorem again, you will find that x is 59.
x+9;x=6
find the value of why for the given value of x
Answers
Answer:
-5
Step-by-step explanation:
Answer:
15
Step-by-step explanation:
x+9=6 when x=6
6+9=15
15=15
The population density of a certain region is 50 people per square kilometer. If the region covers 35 square kilometers, what is the population of the region?
Answers
Answer:
my dad can answer that wait a minute
What is the slope of the line shown below?
у
N
2
1-5-4-3-2-1
X
1 2 3 4 5
Answers
Answer:2
2/1=2
I hope this is good enough:
The arrow below was painted in a school parking lot.
What is the area of the arrow?
Answers
Answer:
16
Step-by-step explanation:
12+4=16
MARKING PEOPLE AS BRAINLIST
Answers
Answer:
d
Step-by-step explanation:
Answer: The correct answer is D or number 4.
Step-by-step explanation:
I hope that this helped :)
mx - y = 7
How do I solve for x
Answers
Explanation and Awnser:
y=mx−7
Swap sides so that all variable terms are on the left hand side.
mx−7=y
Add 7 to both sides.
mx=y+7
Divide both sides by m.
m
mx
=
m
y+7
Dividing by m undoes the multiplication by m.
x=
m
y+7
find the ordered pair for the solution -7x+3y=2
Answers
Answer:
(1, 3 )
Step-by-step explanation:
To find a solution choose a value for x, substitute into the equation and solve for y.
let x = 1 , then
- 7(1) + 3y = 2 , that is
- 7 + 3y = 2 ( add 7 to both sides )
3y = 9 ( divide both sides by 3 )
y = 3
One possible solution is therefore (1, 3 )
Answer:
Step-by-step explanation:
1 3
help i times the expoint but it was wrong is it 4 ^16?
Answers
Answer:
4
Step-by-step explanation:
256/4^3
256/64
4
