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sveta [45]
3 years ago
8

Eliminate the parameter t to find a cartesian equation for x=t^2 y=2+10t

Mathematics
1 answer:
postnew [5]3 years ago
3 0
Hello :
\left \{ {{x= t^{2} }...(1) \atop {y=2+ 10t }...(2)} \right.
by(1) : 
t =  \frac{y-2}{10}
subsct in (2) : 
 x =  ( \frac{y-2}{10} )^{2}....(<span>cartesian equation )</span>
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In a school survey, three homerooms are chosen and 10 students from each homeroom are randomly chosen to complete the survey. Id
lesya [120]

Answer:

This sampling method used in this question is the stratified sampling method.

Step-by-step explanation:

There are about 5 known sampling methods.

- Random Sampling

In random sampling, each member of the population has an equal chance of being surveyed. All the students are given a number and random numbers are generated to pick the students to be surveyed.

- Systematic sampling

This is easier than random sampling. In systematic sampling, a particular number, n, is counted repeatedly and each of the nth student is picked to be sampled.

- Convenience Sampling

This is the worst sampling technique. It is also the easiest. In Convenience sampling, the surveyor just surveys the first set of students that they find.

- Cluster sampling

Cluster Sampling divides the population into groups which are called clusters or blocks. The clusters are selected randomly, and every element in the selected clusters is surveyed.

- Stratified Sampling

Stratified sampling divides the population into groups called strata. A sample is taken from all or some of these strata using either random, systematic, or convenience sampling. This is evidently the answer to the question as the students are divided into homerooms (strata) and samples are now randomly taken from 3 randomly selected strata.

Hope this Helps!!!

6 0
3 years ago
Is M a midpoint of line AB= ? AB= 27 and MB =14 <br> A maybe <br> B can’t be <br> C no <br> D yes
My name is Ann [436]
The answer is B/C.—M is in fact NOT a midpoint of line AB. This is because to be a midpoint the distance between both endpoints and the midpoint must me equal. If AB has equaled 28 then is would be, but in this case NO. To get AM you just need to do 27-14. AM would be 13 (if you need that too)
6 0
3 years ago
I WILL GIVE BRAINLIEST AND STARS AND A HEART!! PLEASE HELP!:
Lubov Fominskaja [6]

what's up? i'd say the scale factor is 25. although when you do 25x3.75 it's not exactly 94 (93.75), it does round up to it so i'd say that answer would be ok? and of course when we do 25x2 we get 50 feet wide

best of luck with your studies

3 0
2 years ago
Find the surface area of the figure.<br> 11.1 m<br> 3.5 m<br> 4 m<br> 4 m<br> 4 m
Elanso [62]

Answer and Step-by-step explanation:

Work is in picture.

<em><u>#teamtrees #PAW (Plant And Water)</u></em>

3 0
3 years ago
What is the slope of line represented by 1/8x + 3y =3
Evgen [1.6K]
1/8x+3y=3
subtract 1/8x from both sides

3y=-1/8x+3
divide both sides by 3

y=-1/24x+1

ANSWER: the slope should be -1/24
8 0
3 years ago
Read 2 more answers
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