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avanturin [10]
3 years ago
14

When you sample the first individuals you can find, you call it a _____; it's cheap and easy to do, but statistically not a very

strong method.
A.
cluster
B.
stratified random sample
C.
convenience sample
D.
cluster sample
E.
simple random sample
Mathematics
1 answer:
ZanzabumX [31]3 years ago
3 0

Answer:

E.

simple random sample

Step-by-step explanation:

Simple random sample: Every member and set of members has an equal chance of being included in the sample. Random samples are usually fairly representative since they don't favor certain members.

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Parrel lines and angles how do I do this one
zzz [600]

Answer:

Step-by-step explanation:

if two lines are parallel and a transversal cuts it,then corresponding angles are equal.

?=130°(corresponding angles)

4 0
3 years ago
Please help it due asap <br> Helppppppp
Leno4ka [110]

Answer:

x = 30°

2x = 60°

3x = 90°

Step-by-step explanation:

GBF = CBD (opposite angle)

; 2x+x+3x = 180° (Size of straight angle)

6x = 180

x = 180÷6

x = 30°

substitution x in 2x ; 2×30 = 60°

substitution x in 3x ; 3×30 = 90°

hope it helps ☺️

4 0
3 years ago
What is the product of a+3 and −2a2+15a+6b2?
Lady bird [3.3K]

Answer:

c. 2a3+9a2+45a+6ab2+18b2

Step-by-step explanation:

(a+3) + (−2a2+15a+6b2)

Using distributed p. with and a and 3

a(−2a2) + a(15a) +a(6b2)        and       3(−2a2) + 3(15a) + 3(6b2)

= -−2a3 + 15a2 + 6ab2                          = -6a2 + 45a + 18b2

Now add like terms and put in standard form.

15a2+(-6a2) = 9a2  

And equals

-2a3 + 9a2+45a+6ab2+18b2

Trust me I took the test and got 100%

Your welcome,

7 0
3 years ago
Read 2 more answers
On a field trip, there are 3 adults for every 45 students. Which graph models a relationship
Georgia [21]

Answer:

H (the second graph)

Step-by-step explanation:

5 0
3 years ago
Help me plz thanks......................
katovenus [111]
The answer is a linear function. For y=8/11x+22

8 0
3 years ago
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