Answer:
The correct answer is D. It is not true that cluster sampling uses randomly selected clusters and samples everyone within each cluster.
Step-by-step explanation:
Cluster sampling is a method of collecting samples and statistical data, by means of which a certain group formed by people, things, events, etc., is taken as a sample, which are not considered individually but as part of a whole, which is in turn a proportional representation of the universality of samples available in the field.
Now, since this type of sampling allows to embrace large groups of sample units, data are not always obtained from all the components of the cluster, but from those necessary to be able to quantify the desired statistics.
Answer:
d
Step-by-step explanation:
just took it
What is the awnser plz I will mark if right diameter and range
Answer:
Its actually radius but the radius is 17 and the diameter is 34
Step-by-step explanation:
radius is half the diameter so double the radius to get the diameter
Helppp please I need help with this ASAP
Answer:
-7 < -5
Step-by-step explanation:
-5 is greater than -7
What is the sum of 1.4 +2.37?
03.31
0 3.41
O 3.71
O 3.77
1.4+2.37=3.77
Step-by-step explanation:
1.4+2.37=3.77
WILL MARK BRAINLIST!!!!!!!!!!!!
What is the 21st term of the sequence with a1 = -7 and d = 3?
A . -4
B . -11
C . -21
D . 53
Answer:
[tex]T_{21} = 53[/tex]
Step-by-step explanation:
Given
[tex]a = -7[/tex]
[tex]d = 3[/tex]
Required
Determine [tex]T_{21}[/tex]
This is calculated using sum of Ap formula
[tex]T_n = a + (n - 1)d[/tex]
In this case:
[tex]n =21[/tex]
So, the equation becomes
[tex]T_{21} = -7 + (21 - 1) * 3[/tex]
[tex]T_{21} = -7 + 20 * 3[/tex]
[tex]T_{21} = -7 + 60[/tex]
[tex]T_{21} = 53[/tex]
Answer:
53
Step-by-step explanation:
I WILL MARK BRAINLIEST PLEASE HELP FIND ANGLE DEB
ITS DUE AT 12 PLEASE HELP PLEASE
Answer:
[tex]\boxed {\boxed {\sf \angle DEB = 111 \textdegree}}[/tex]
Step-by-step explanation:
We want to find angle DEB. We know AB is perpendicular to AC, CD is congruent to CE and angle B is 48 degrees.
ABC is a triangle. The angles in a triangle must add up to 180 degrees. Therefore:
∠A+∠B+∠C= 180°We know two angles: ∠B= 48° and ∠A= 90° (the little square denotes a right angle).
90°+48°+ ∠C= 180° Substitute values in.138°+ ∠C =180° Add 138°-138° ∠C= 180°-138° Subtract 138 from both sides. ∠C= 42°Note that angle C is part of another triangle. It is isosceles because the two legs (CD and CE) are congruent. Therefore, the two base angles (E and D) are congruent.
∠C+∠D+∠E= 180°∠C+ 2∠D= 180° Angles D and E are congruent42°+ 2∠D= 180° Substitute 42 in for angle C42°-42° +2∠D= 180°-42° Subtract 42 from both sides.2∠D= 138°2∠D/2= 138°/2 Divide both sides by 2.∠D= 69°∠D and ∠E equal 69 degrees.
Angle CED (∠E) and DEB are on a straight line together. Therefore, they are supplementary and equal 180 degrees.
∠CED+ ∠DEB= 18069° +∠DEB= 180° Substitute 69 for angle CED69°-69° +∠DEB= 180°-69° Subtract 69 from both sides∠DEB=111°Angle DEB is equal to 111 degrees
A telescope is being built using a hyperbolic mirror and parabolic mirror that share a focus. The hyperbolic mirror can be modeled using the equation (y-1)^2/144 - (x+4)^2/25 =1, and the parabolic mirror opens downward and has a vertex at (-4,-10). What are the coordinates of the focus they share?
Answer:
C. (-4, -12)
Step-by-step explanation:
Answer:
My fellows, I know how painful it is in Pearson so I want to help you guys.
1. B
2. D
3. A
4. D
5. C
Step-by-step explanation: 100% correct I took it
Can someone troll this zoom.
926 4712 2356
JanPT2021!
Answer:
who zoom is that... just wanna know
Step-by-step explanation:
A table of values of a linear function is shown below. Find the output when the input is . Type your answer in the space provided.
input 1234n
output6420
Answer:
y=4n+2
really sorry if this aint right
Step-by-step explanation:
What’s the distance between 79 and -37
Answer:
116
Step-by-step explanation:
h(x)=-3x+2;find h(-5)
Answer:
17
Step-by-step explanation:
h = (-3)(-5) + 2
h = 15 + 2
h = 17
Hope this helps!
3/4 of the pupils in the class passed an examination. if 60 pupils passed ,how many pupils were the class
Is 9 a reasonable estimate of 9 11/16?
Answer:
No
Step-by-step explanation:
9 11/16 is closer to 10 than 9. You would round up.
Answer:
No
Step-by-step explanation:
11 is more than half of 16
If you were going to round you need to round up to the nearest whole number because 11 is more than half of 16
Help will give thanks and brainliest
who was located on the Yucatan Peninsula? A.Olmec B.Mayan C.Aztec D.Inca
80 points! Look at the pic attached. I will mark brainliest to the correct answer. Random answers will be reported :) thanks
Answer: No, it is not commutative. If used a square as an example, centered at (1,1). If a dilation is performed on the square of a scale factor of 3, and the square is translated 5 units downward, then the result would be different than if I switched the order, doing the translation downward first and then performing the dilation centered at (1,1).
I hope this helps! If you need any further clarification, just let me know below. Thanks! Have a good day, and good luck on your assignment. :)
Answer:
this helps me :-))
thanks
Which property is 7+0=7
Answer:
7=7
Step-by-step explanation:
Answer:
Additive Identity Property
Step-by-step explanation:
Additive Identity Property is 0 when you add it to something, and then you would get an identical answer back
Show Your Knowledge
Molly has 18 coins, all dimes and nickels. The total value of the coins
is $1.05. How many of each type of coin does Molly have?
9514 1404 393
Answer:
15 nickels3 dimesStep-by-step explanation:
Let d represent the number of dimes Molly has. Then she has 18-d nickels, and the total value (in cents) of her coins is ...
5(18 -d) +10d = 105
5d +90 = 105 . . . . . . simplify
5d = 15 . . . . . . . . . . . subtract 90
d = 3 . . . . . . . . divide by 5; number of dimes
18-d = 15 . . . . . number of nickels
Molly has 3 dimes and 15 nickels.
Molly has 18 coins, all dimes and nickels. The total value of the coins
is $1.05. How many of each type of coin does Molly have?
[tex]\huge\star{\underline{\mathtt{\red{A}\pink{N}\green{S}\blue{W}\purple{E}\orange{R}}}}\star[/tex]
15 nickels
3 dimes
Let d represent the number of dimes
Molly has. Then she has 18-d nickels, and
the total value (in cents) of her coins is ..
5(18-d) +10d = 105
5d +90 105.... simplify
5d 15...
. . subtract 90
d 3.. ... divide by 5; number of
dimes
18-d 15... . . number of nickels
Molly has 3 dimes and 15 nickels.
In a class room 3/10 of the students are wearing blue shirts and 3/5 are wearing white shirts there are 20 students In The classroom how many students are wearing shirts other than white or blue shirts
Total number of students in the class = 36
Number of students wearing blue shirts = (1/6) * 36
= 36/6
= 6
Number of students wearing white shirts = (2/3) * 36
= 2 * 12
= 24
Then
Number of students not wearing blue or white shirts in the class = 36 - (6 + 24)
= 36 - 30
= 6
So 6 students in the class are wearing a shirt other than a blue or a white shirt. I hope the procedure is clear enough for you to understand.
how long is a side of the pool
Answer:
In the United States, most competitive swimming pools are 25 yards long. This is the most standard length competition pool, and the one most commonly mistaken for an Olympic sized pool (by those who were not competitive swimmers).Most US high schools, public recreation centers, universities and YMCA's have 25-yard pools. Swimmers refer to this type of pool as "short course", or "short course yards". On paper, the acronym is SCY.
Step-by-step explanation:
PLWS MARK ME BRAINLIEST
soccer or golf? im giving brainliest if that sounds good to you guys.
Answer:
soccer bruv
Step-by-step explanation:
Answer:
soccer 100% no other one.
Which is the best estimate of -14 1/9(-2 9/10)?
O-42
O -28
O 28
O42
Answer:
The best estimate for the given calculation is 2.8.
Step-by-step explanation:
To determine the correct option regarding the result of this calculation, the mathematical resolution of the same must be developed:
-14 x 1 /9 x (-2 x 9/10) = X
-14 x 1 / 9 x (-18 / 10) = X
-14 x 1 / 9 x -1.8 = X
-14 / 9 x -1.8 = X
-1.555555 x -1.8 = X
2.8 = X
Therefore, the best estimate result for this mathematical operation is 2.8.
Which integer represents the following phrase? The elevation of Mt Everest is about 29 thousand feet above sea level A.29.00 B. -29,000 c. 29,000 D. 29/100
Answer:
C
Step-by-step explanation:
That is my final answer and also I maybe wrong so don't take my word for it.
Audrey was driving down a road and after 4 hours she had traveled 86 miles. At this speed, how many miles could Audrey travel in 6 hours?
Answer:
129
Step-by-step explanation:
trust me
Plz hurry
what is the value of (4x^2-10)/y when x=5 and y=6?
A. –15
B. 10
C. 15
D. 20
Answer: C
Step-by-step explanation: Reduce the expression, if possible, by cancelling the common factors.
15
40 = 2 x 2 x 2 x 5
Write the number 60 as a product of its prime factors in the same way.
Write the factors in order, from smallest to largest.
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Answer:
Step-by-step explanation:
60 = 2×2×3×5
Solve for x
please help!
Answer:
Step-by-step explanation:
As these are alternate angles hence we got that ,
both angles will be equal ,
7x+5 = 47
x= (47-5)/7
x=6 degree
Answer:
x = 6°
Step-by-step explanation:
7x + 5° = 47°, because of alternate exterior angles (We can use this because the lines are parallel). Since we know this, we can solve for x.
Solving this equation:
7x + 5 = 47 and if you subtract by 5 on both sides you would get that 7x = 42. From here, you divide 42 by 7 to get your answer. 42/7 = 6 so x = 6 degrees.
Note: I assumed that the angle 7x + 5 was 7x + 5°
yesterday Noah ran 2 1/2 miles in 3/5 hour. emily ran 3 3/4 miles in 5/6 hour. Anna ran 3 1/2 miles in 3/4 hour. how fast, in miles per hour, did each person run? who ran the fastest.
Answer:
Anna
Step-by-step explanation:
she was the fastest
Which graph represents a bike traveling at a constant rate of 12 miles per hour?
Will mark BRAINLIEST!!!! Also please explain how you got the answer, because I don't know how. :(
middle term of the product of (4x - 1)(2x + 5).
Answer:
B
Step-by-step explanation:
i know
Answer:
middle term is 18x
Step-by-step explanation:
8x² + 20x + (-2x) - 5
|3x+9|=30 helppppppppp
Answer:
X1= -13 , X2= 7
Step-by-step explanation:
solve for X
