I NEED HELP PLSS. The athletic director of a large school district with about 1,500 seventh-grade students in five different middle schools wants to know which sport is most popular among seventh graders. Which survey method is the best to use?
A
Survey 50 randomly selected seventh-grade students at each of the district’s middle schools.
B
Survey 50 randomly selected seventh-grade students at one of the middle schools.
C
Survey 50 randomly selected seventh-grade students who are participating in school sports this year.
D
Survey 50 randomly selected eighth-grade students who participated in school sports last year.
Survey 50 randomly selected seventh-grade students at each of the district’s middle schools. Then the correct option is A.
What is a sample?A sample is a group of clearly specified components. The number of items in a finite sample is denoted by a curly bracket.
The athletic director of a large school district with about 1,500 seventh-grade students in five different middle schools wants to know which sport is most popular among seventh graders.
The survey method is the best to use will be
Random sampling is the method of selecting the subset from the set to make a statical inference.
Survey 50 randomly selected seventh-grade students at each of the district’s middle schools.
Thus, the correct option is A.
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Find the initial value for g(x)=.8(1.32)^x
Answer:
8
Step-by-step explanation:
I hope this helps! If it does, please mark me Brainliest! Thanks in advance!
find the slope of the line thatpasses through these two points: (-3, 4): (2,-1)
Answer:
y=-x+1
Step-by-step explanation:
help please 100 brainlest
Answer:
friday
Step-by-step explanation:
8th day will be monday
then 32 nd will be monday.
so 36th is friday
Brainliest to the correct answer, but answer ASAP
ONLY answer if you are 100% sure so don't say "I think" or "It might be"
Answer:
153.86 ft squared
Step-by-step explanation:
A = πr^2
A = 3.14(7)^2
A = 3.14*49
A = 153.86
Hope this helps, good luck on the test!
2) Compare these sets of data. Choose the TWO sets of data with the MOST symmetrical distributions.
Answer:
when you are comparing two sets of data, and one set is strongly skewed and the other is symmetric, which measures of the center and variation should you choose for the comparison?
find the arc JML of the circle
Answer:
JML = 176°
Step-by-step explanation:
JML = 2 angle JKL
= 2 × 88°
= 176°
HOPE THIS HELPS AND HAVE A NICE DAY <3
please HELP me don’t BE RUDE IM WASTING MY PTS
The line plot shown in the graph as 25 repeated 1 time, 25 1/2 repeated 2 times and so on.
What is a line graph?A line graph is a graph made up of segments of straight lines that connect the depicted data points.
Draw dots on each of the data element in the data set:
25 repeated 1 time
25 1/2 repeated 2 times
26 repeated 1 time
27 3/4 repeated 1 time
and so on.
Thus, the line plot shown in the graph as 25 repeated 1 time, 25 1/2 repeated 2 times and so on.
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What is the surface area of this right triangular prism?
Right triangular prism. The height of the prism is labeled 12 in. The base of the prism is a triangle with sides labeled 13 in., 13 in., and 24 in. There is a dashed line from the vertex of the triangle perpendicular to the 24 in. side that is labeled 5 in.
PLSSS ANSWER
Answer:
the answer is 720
Step-by-step explanation:
I took the test
Maria hiked 2 miles in 1.5 hours how long will it take her to hike 6 miles
Answer:
4.5 hours
Step-by-step explanation:
If 2 miles takes 1.5 hours, then 6 miles will be 4.5 hours.
2 miles = 1.5 hours
6 times 1.5 = 4.5
Therefore, 6 miles will take 4.5 hours.
Answer:
4.5 Hours
Step-by-step explanation:
2/1.5=6/ x
Cross multiply
2x=1.5*6
2x=9
x=4.5
Anthony has a sink that is shaped like a half-sphere. The sink has a volume of 3000
in3
. One day, his sink
3
clogged. He has to use one of two cylindrical cups to scoop the water out of the sink. The sink is completely
full when Anthony begins scooping.
(a) One cup has a diameter of 5 in. and a height of 6 in. How many cups of water must Anthony scoop
out of the sink with this cup to empty it? Round the number of scoops to the nearest whole
number. Show all your work.
(b) One cup has a diameter of 6 in. and a height of 6 in. How many cups of water must he scoop out of
the sink with this cup to empty it? Round the number of scoops to the nearest whole number.
PLEASE HELP
worth 20 points.
Answer:
a) 80
b) 56
Step-by-step explanation:
a) Calculate the volume of the the cup using volume of cylinder equation: [tex]V = \pi r^{2} h[/tex]
Where V = Volume, r=radius, and h=height. Your answer should be in cubic inches ([tex]in^3[/tex]).
You're given diameter, so use equation [tex]d/2 = r[/tex] to find radius.
Substituting these equations will give you: [tex]V = \pi (d/2)^2 h[/tex]
However, the given volume of the sink is 3000[tex]\pi[/tex], meaning that you should modify your results to match this value. Do not substitute [tex]\pi[/tex] for 3.14..., leave it as a symbolic value. Your final V of the cup should = 37.5 [tex]\pi[/tex]
Divide the volume of the sink by the volume of the cup. This number will be the amount of cups needed to empty it. In equation form:
[tex]Vsink / V cup =[/tex] # of cups.
Note the the [tex]\pi[/tex] will cancel each other out, so there's not need to factor that in.
b) Repeat the steps above with the new d (diameter) value.
Answer:
a) 117.75
Step-by-step explanation:
3.14 * 2.5^2=19.625
19.625*6=117.75
Angle ABC measures 140°. Angle DBC bisects ∠ABC. Angle EBC bisects ∠DBC. What is the measure of ∠EBC?
Answer:
[tex]\angle{EBC}=35\textdegree[/tex]
An angle bisector divides the angle measure into two equal parts. In triangle ABC, B is the point at which the angle lies.
Step-by-step explanation:
Picture segment BD drawn from point B of tri.ABC where it connects to segment AC, creating point D. Now picture E drawn on the newly created segment DC where it connects to point B and down to point C. Here's a drawing to better show this:
It's bisecting the bisected angle ABC. So, 140/2 = 70, and 70/2 = 35.
estimate for 290% of 40
Answer:
116
Step-by-step explanation:
290% as a decimal is 2.9. "Of" means multiply. You can now multiply 2.9 by 40 to get the answer 116.
HELP PLS If there were 180 minions with you in the lab and only three-fifths made it through the door, how many minions are still with us?
Answer:
they all passed away so they went back to GRU and he burried them and at their f l e s h, The rest all ran away.
100 POINTS TO WHOEVER IS CORRECT!!
SHOW ALL WORK. PLEASE HELP.
ALSO SHOW WHERE YOU CONNECTED THE DOTS
QUESTION -
WHAT IS THE AREA OF THIS IRREGULAR POLYGON?
The area of the irregular polygon = area of the 2 triangles + area of the rectangle = 25 units².
What is the Area of a Rectangle and a Triangle?Area of a triangle = ½bhArea of a rectangle = (length)(width)The irregular polygon can be decomposed into two triangles and a rectangle.
Area of triangle AGE = ½bh = ½(6)(3) = 9 units²
Area of triangle EGF = ½bh = ½(2)(4) = 4 units²
Area of rectangle ABCD = (length)(width) = (4)(3) = 12 units²
Area of the irregular polygon = 9 + 4 + 12 = 25 units².
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The perimeter of rectangle is 48ft the length is 16 from. Whats is the area?
Answer:
128
Step-by-step explanation:
There are 2 lengths, 16 x 2 = 32. 48 - 32 = 16. 16 divded by 2 equals 8. 8 x 16 = 128.
The square of a number is 3 less than four times the number. Which values could be the number?
(More than one answer)
a. 3
b. 0
c. 1
d. -3
e. -1
Answer:
A and C.
Step-by-step explanation:
We are given that: "The square of a number (which we can call x) is three less than four times the number."
In other words:
[tex]\displaystyle x^2 = 4x - 3[/tex]
Hence solve for x by isolating the equation and factoring:
[tex]\displaystyle \begin{aligned} x^2 - 4x + 3 & = 0 \\ \\ (x-1)(x-3) & = 0 \\ \\ x & = 1 \text{ or } x = 3 \end{aligned}[/tex]
In conclusion, our answers are A and C.
Ms. Duran kept track of her personal
finances yesterday using dollar amounts
written on the index cards shown below.
The amount of dollars that Ms. Duran would have at the end of the day if she started the day with $0 is 665 dollars.
What is the balance at the end of the day?The value of the account will increase when she receives her pay check and wine the lotto earnings. The value of the account would decrease when she pay for gasoline, groceries and phone bill.
Balance = 895 - 95 - 129 - 84 + 78 = 665 dollars
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5/8 ÷ 3/4
I Need help?
LIKE NOW!!!
Answer: 5/6
Step-by-step explanation:
5/8 / 3/4
5/8 * 4/3= 20/24
20/24 / 4/4 = 5/6
Shelley read 40 business proposals between 6 am and 11 am. On average how many proposals did she read per hour
Answer: 8 proposals per hour
Step-by-step explanation: 40/5 = 8
Yo! Can someone help me with this?
Answer:
w=39 degrees and r=51 degrees
Step-by-step explanation:
The sum of the angles in a triangle should equal 180 degrees. Knowing this we take (38+103) - 180 = 39. Since opposite angles are always congruent, we can conclude that w is also 39 degrees. Thus we take (39+90)-180 = 51 degrees. (We know that one side is 90 degrees because it has a right angle)
Hope that helps! :)
Giveing out 100 points to whoever gets it right! Need help soon!
Answer:
225.5 sq. mm
Step-by-step explanation:
triangle:5x(9+4+4+4)=15x21÷2=157.5
5x(4+4)=5x8=40
7x4=28
157.5+40+28=157.5+68=225.5
Ian Zander earns extra money by refinishing wood floors. His charge is based on the size and condition of the floor. Last month, he refinished 6 floors for $140 each, 2 floors for $220 each and 1 floor for $178. What average amount per floor did he earn for the month?
Answer:
Average per floor = 162 dollars.
Step-by-step explanation:
Remark
First find the number of floors
Then make a total income received from those floors.
Then divide the total income by the number of floors, to get the average
Number of floors
Total number of floors = 6 + 2 + 1 = 9 floors
Total income
Total income = cost per floor * the number of floors.
Total income
6 * 140 = 840
2 * 220 = 440
1 * 178 = 178
Total = 1458
Average income / Floor
Average income / Floor = Total amount / number of floors
Average Income / Floor = 1458 / 9 = 162
I have an assignment where I need 50 responses of how many hats you have. How many hats do you have?
To add more answer options, click the + Add an answer button below the answer options A and B. You can add up to 10 answer options in total for a multiple choice question. Indicate the correct answer(s) using the checkbox(es) aligned to the right of the answer options
What is the value of this expression when d = 4 7/8 and f = 3 1/2
6 (d - f) + f
7+(10−4)2:4⋅231=7+62:4⋅81=7+36:4⋅81=7+9⋅81=7+89=7+181=881
Solve for m/a renter answer in the box round to your final answer to the nearest degree.
Answer:
50 degrees
Step-by-step explanation:
For a RIGHT triangle tan A = opposite side / adjacent side
tan A = 12/10
arctan ( tan A) = A = arctan (12/10) = 50.19 degrees
The distance around a triangle is 36 cm. If two sides are equal and the length of the third side is 14 cm what is the length of each of the other two sides?
Answer: 11 cm
Step-by-step explanation:
Let x be the length of one of the other sides. If two are equal, then they both will be 2x.
Then one side is equal to 14 cm.
All the sides added together, the perimeter, is equal to 36 cm.
We will take the numbers we pulled from the problem, create an equation, and solve for x.
36 cm = 14 cm + 2x
22 cm = 2x
11 cm = x
The length of each of the two other sides is 11 cm.
Use the properties and mental math to find the sum 6 3/4 +(4 2/4 + 5 1/4
The solution to the question is [tex]\rm 16\dfrac{1}{2}[/tex] .
What are whole numbers, proper and improper fraction ?Whole numbers is a collection of all the basic counting numbers and 0. In mathematics, counting numbers are called natural numbers.
So, we can define the whole number as a collection of all natural numbers and 0. Whole numbers also include all positive integers along with zero.
A proper fraction is a fraction whose numerator is smaller than its denominator.
An improper fraction is a fraction whose numerator is equal to or greater than its denominator.
The given question is [tex]\rm 6\dfrac{3}{4} + 4\dfrac{2}{4} +5\dfrac{1}{4}[/tex]
this can be also written as
[tex]\rm \dfrac{27}{4} +\dfrac{18}{4} +\dfrac{21}{4}[/tex]
as they have same bases
[tex]\rm \dfrac{66}{4}\\\\\\\dfrac{33}{2}\\\\16\dfrac{1}{2}[/tex]
Therefore this is the solution.
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The volume of a cube is 979cm3. Work out the length of its side rounded to 1 DP.
Answer:
9.9
Step-by-step explanation:
Volume of cube= side x side x side = (side)³
(side)³ = 979
= side = ∛979
= 9.9
An ellipse has foci F1(−5, 5) aF2(0, 7) and the point (0, 5) is on the ellipse. Identify the constant sum for the ellipse.
The constant sum for the ellipse with the foci (-5,5) and (0,7) and the point (0,5) is 7
How to determine the constant sum?The foci of the ellipse are given as:
F1(−5, 5) aF2(0, 7)
The point is then given as:
Point (0, 5)
Calculate the distance between each focus and the point using:
[tex]d = \sqrt{(x_2 -x_1)^2 + (y_2 -y_1)^2}[/tex]
So, we have:
[tex]F_1 = \sqrt{(-5-0)^2 + (5-5)^2}[/tex]
Evaluate
[tex]F_1 = 5[/tex]
Also, we have:
[tex]F_2 = \sqrt{(0-0)^2 + (7-5)^2}[/tex]
Evaluate
[tex]F_2 = 2\\[/tex]
The constant sum is then calculated using:
Constant sum = F1 + F2
So, we have:
Constant sum = 5 + 2
Evaluate
Constant sum = 7
Hence, the constant sum is 7
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