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3 years ago

Which of the following can prove that figure ABCD is a square?

Mathematics

1 answer:

Klio2033 [76]3 years ago

7 0

Answer:

Step-by-step explanation:

all sides of square is 90degrees

Since AC and BD is the same, when you join the lines together, it will definitely be a square

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14. A company uses many different delivery

ziro4ka [17]

Answer:

0.6603 = 66.03% probability that it will be sent with the ABC Speedy Delivery Company and arrive on time.

Step-by-step explanation:

Conditional Probability

We use the conditional probability formula to solve this question. It is

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

In which

P(B|A) is the probability of event B happening, given that A happened.

$P(A \cap B)$ is the probability of both A and B happening.

P(A) is the probability of A happening.

In this question:

Event A: Sent by ABC Speedy Delivery Service.

Event B: Arrived on time.

The probability that any given parcel will be sent by the ABC Speedy Delivery Service is 0.71.

This means that $P(A) = 0.71$

The probability that the parcel will arrive on time given the ABC Speedy Delivery Company was used is 0.93.

This means that $P(B|A) = 0.93$

Find the probability that it will be sent with the ABC Speedy Delivery Company and arrive on time.

This is $P(A \cap B)$ . So

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

$P(A \cap B) = P(B|A)*P(A) = 0.93*0.71 = 0.6603$

0.6603 = 66.03% probability that it will be sent with the ABC Speedy Delivery Company and arrive on time.

8 0

3 years ago

Determine the slope and y-intercept of each graph. Then, write the equation of the graph in slope-intercept form.

Eva8 [605]

Answer:

-3/2=slope

y-int = (0,1)

Equation= Y=-3/2x+1

Step-by-step explanation:

7 0

2 years ago

A building casts a shadow that is 420 meters long. At the same time, a person who is 2 meters tall casts a shadow that is 24 met

sweet-ann [11.9K]

Answer: The building is 35 meters tall.

Step-by-step explanation:

420 divided by 24 is 17.5

17.5 x 2 is 35

(im multiplying by two because it says that a person who is 2 meters tall casts a shadow that is 24 meters long. ***)

8 0

2 years ago

Help please how to do these questions. ??

Lina20 [59]

You can only show 2 halves in a square, because the definition of a half is that there are 2 parts.

5 0

3 years ago

Read 2 more answers

Find the solution of the system 2x-y=0 and 4x-2=2

yanalaym [24]

Answer:

(1, 2)

Step-by-step explanation:

2x-y=0

4x-2=2

-----------

y=2x-0

y=2x

-------------

4x=2+2=4

4x=4

x=4/4=1

---------------

y=2(1)=2

x=1, y=2.

8 0

3 years ago