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goldfiish [28.3K]
3 years ago
15

PLEASE HELPPPPP

Mathematics
2 answers:
Serjik [45]3 years ago
6 0

Answer:

A cafeteria because all of the other choices would be biased towards the sport/activity that is already occurring.

Step-by-step explanation:

During a wrestling match, people are definitely going to be directed towards wrestling. During a basketball game, people prefer basketball. During a chorus or choir, people prefer choir most likely.

When in a cafeteria, people just sit there and eat or play games or talk.

People are also stationary so people won't be yelling at you to back off when you jump in the stadium for wrestling/basketball and start blasting questions at someone in a headlock.

Bess [88]3 years ago
3 0
Maybe cafeteria so it’s not bias
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Which undefined terms are needed to define parallel lines quizlet?
HACTEHA [7]

The correct answer is C. Coplanar, line.

The undefined terms are needed to define parallel lines are coplanar and line.

<h3>What are parallel lines?</h3>

Two lines in a single plane that are equally spaced apart and never cross each other are said to be parallel lines in geometry. All horizontal and vertical shapes are possible.

Examples of parallel lines can be found everywhere, including zebra crossings, rows of notebooks, and the nearby railroad tracks.

Some characteristics of parallel lines are-

  • They are usually parallel straight lines that are spaced equally apart.
  • These lines are coplanar.
  • No regardless how far you extend these in any direction, they never come together.
  • A transversal line will create four angles at each of its two sites of intersection with two parallel lines if it does so.

To know more about parallel lines, here

brainly.com/question/4954460

#SPJ4

The complete question is-

Which undefined terms are needed to define parallel lines?

A. Point, line

B. Line, plane

C. Coplanar, line

D. Point, coplanar

5 0
2 years ago
One of your peers claims that boys do better in math classes than girls. Together you run two independent simple random samples
JulijaS [17]

Answer:

Step-by-step explanation:

Hello!

To test if boys are better in math classes than girls two random samples were taken:

Sample 1

X₁: score of a boy in calculus

n₁= 15

X[bar]₁= 82.3%

S₁= 5.6%

Sample 2

X₂: Score in the calculus of a girl

n₂= 12

X[bar]₂= 81.2%

S₂= 6.7%

To estimate per CI the difference between the mean percentage that boys obtained in calculus and the mean percentage that girls obtained in calculus, you need that both variables of interest come from normal populations.

To be able to use a pooled variance t-test you have to also assume that the population variances, although unknown, are equal.

Then you can calculate the interval as:

[(X[bar]_1-X[bar_2) ± t_{n_1+n_2-2;1-\alpha /2} * Sa*\sqrt{\frac{1}{n_1} +\frac{1}{n_2} }]

Sa= \sqrt{\frac{(n_1-1)S^2_1+(n_2-1)S^2_2}{n_1+n_2-2} } = \sqrt{\frac{14*(5.6^2)+11*(6.7^2)}{15+12-2} }= 6.108= 6.11

t_{n_1+n_2-2;1-\alpha /2}= t_{15+12-2;1-0.05}= t_{25;0.95}= 1.708

[(82.3-81.2) ± 1.708* (6.11*\sqrt{\frac{1}{15}+\frac{1}{12}  }]

[-2.94; 5.14]

Using a 90% confidence level you'd expect the interval [-2.94; 5.14] to contain the true value of the difference between the average percentage obtained in calculus by boys and the average percentage obtained in calculus by girls.

I hope this helps!

3 0
3 years ago
Write an equation for this $13 more than twice the cost of a video game is $67. Find the cost of the video game.
Nezavi [6.7K]

Answer:

13+2x=67 soooooo x = 27 so the video game is $27 and thats the equation

Step-by-step explanation:

6 0
2 years ago
Letp,qandrbe the propositions such that,p:"You get an A on the final exam"q:"You do every exercise in this book"r:"You get an A
Zanzabum

Answer:

a) r→q

b) r→p

c) r→p

d) r→ p∧q

e) r→ p∨q

Step-by-step explanation:

Using logical connectives, as shown in the picture below, we can write all of the statements of the question.

p:"You get an A on the final exam"

q:"You do every exercise in this book"

r:"You get an A in this class"

a) r→q

b) r→p

c) r→p

d) r→ p∧q

e) r→ p∨q

6 0
2 years ago
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nexus9112 [7]

Answer: You divide the top row by itself and you multiply the top by 2 each time.


Step-by-step explanation: Multiply 72 by 2 each time on top and the bottom row just simply add 1.


Sorry if it is wrong but i hope it helps!


8 0
3 years ago
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