Which shape is a rectangle

Mathematics

2 answers:

Nezavi [6.7K]3 years ago

8 0

Answer:

Top left.

Step-by-step explanation:

Definition of a rectangle:

A four sided figure with 90 degree angles. The opposing side pairs are congruent with each other. It's the equivalent of a modified, upgraded parallelogram.

Now, the square is the answer since it fits all of the criteria of the rectangle, with the addition of having four congruent sides.

Alex73 [517]3 years ago

4 0

Answer:

The first one, A.

Step-by-step explanation:

A rectangle is a figure with 4 straight sides and 4 right angles. The only shape which matches this criteria is the top left figure.

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jeyben [28]

Hi there! The answer would be:

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Explanation:
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Which is the graph of a quadratic equation that has a negative discriminant?

luda_lava [24]

Answer:

The first graph.

Step-by-step explanation:

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4 years ago

The probability that a new car battery functions for more than 10,000 miles is .8, the probability that it functions for more th

MAXImum [283]

Answer:

There is a 50% probability that its total life will exceed 20,000 miles.

Step-by-step explanation:

To solve this question, we use the following formula:

$P(A|B) = \frac{P(A \cap B)}{P(B)}$

In which P(A|B) is the probability of A happening, given that B has happened, $P(A \cap B)$ is the probability of A and B happening, and P(B) is the probability of B happening.

In this problem, we want:

The probability of the total life of the car battery exceeding 20,000 miles, given that it exceeded 10,000 miles.

$P(A \cap B)$ is the probability of exceeding 20,000 and 10,000 miles. It is the same as the probability of exceeding 20,000 miles(If it exceeded 20,000 miles, necessarily it will have exceeded 10,000 miles). So $P(A \cap B) = 0.4$