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3 years ago

In a Venn diagram, the rectangle represents the entire group. True False

Mathematics

2 answers:

prohojiy [21]3 years ago

8 0

True because the rectangle represents the universe and closed figures.

lora16 [44]3 years ago

3 0

A Venn Diagram is 2 or 3 circles combined

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PROVE :<br><br>sin^2(-300°).cos^2 (120)+ cos^2(-240 ).sin^2(390)=1/4

leva [86]

Step-by-step explanation:

$\sin {}^{2} ( - 300) \cos {}^{2} (120) + \cos {}^{2} ( - 240) \sin {}^{2} (390) = \frac{1}{4}$

$\sin {}^{2} (60) \cos {}^{2} ( {}^{} 120) + \cos {}^{2} (120) \sin {}^{2} (30)$

$\frac{3}{4} \frac{1}{4} + \frac{1}{4} \frac{1}{4}$

$\frac{3}{16} + \frac{1}{16} = \frac{4}{16} = \frac{1}{4}$

3 0

2 years ago

Determine whether each question is biased. Explain your answer.

Kisachek [45]

Biased because the survey was conducted in a limited field of people aka health club which does not include other people, perhaps an unhealthy club? Or the people who are not a part of the health club? Or people who do not care about their health?

8 0

3 years ago

Read 2 more answers

Jeremy and Brenda drove their cars in

harkovskaia [24]

Answer: Jeremy drove 84 miles.

Step-by-step explanation:

Let x represent the number of miles that Brenda drove.

If Jeremy drove twice

as far as Brenda, it means that the distance covered by Jeremy would be 2x miles

When they stopped after some time, they were already

126 miles apart. This means that the total distance covered by both of them is 126 miles. Therefore,

x + 2x = 126

3x = 126

x = 126/3

x = 42 miles

The number of miles that Jeremy drove is

42 × 2 = 84 miles

4 0

4 years ago

Anarel [89]

The ratio of volumes is equal to the ratio of the cubes of the scale factor. Thus,
Volume ratio:
6³ : 7³
216 : 343

7 0

3 years ago

Read 2 more answers

A washer and a dryer cost $1050 combined. The washer costs $100 more than the dryer. What is the cost of the dryer?

ollegr [7]

Answer:

624

Step-by-step explanation:

1050/2

526-100

426- cost of washer

1050-426

624- cost of dryer

3 0

3 years ago