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ZanzabumX [31]
3 years ago
13

11.) The area of a garden is 152 square feet. If the length is 7 feet, what is the

Mathematics
2 answers:
Masja [62]3 years ago
8 0

Answer:

about 22 feet (21.7)

Step-by-step explanation:

Divide 152 by 7 and you get the width

DerKrebs [107]3 years ago
8 0

Multiply

Step-by-step explanation: multiply the two numbers and that's your answer

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Suppose a particular type of cancer has a 0.9% incidence rate. Let D be the event that a person has this type of cancer, therefo
natita [175]

Answer:

There is a 12.13% probability that the person actually does have cancer.

Step-by-step explanation:

We have these following probabilities.

A 0.9% probability of a person having cancer

A 99.1% probability of a person not having cancer.

If a person has cancer, she has a 91% probability of being diagnosticated.

If a person does not have cancer, she has a 6% probability of being diagnosticated.

The question can be formulated as the following problem:

What is the probability of B happening, knowing that A has happened.

It can be calculated by the following formula

P = \frac{P(B).P(A/B)}{P(A)}

Where P(B) is the probability of B happening, P(A/B) is the probability of A happening knowing that B happened and P(A) is the probability of A happening.

In this problem we have the following question

What is the probability that the person has cancer, given that she was diagnosticated?

So

P(B) is the probability of the person having cancer, so P(B) = 0.009

P(A/B) is the probability that the person being diagnosticated, given that she has cancer. So P(A/B) = 0.91

P(A) is the probability of the person being diagnosticated. If she has cancer, there is a 91% probability that she was diagnosticard. There is also a 6% probability of a person without cancer being diagnosticated. So

P(A) = 0.009*0.91 + 0.06*0.991 = 0.06765

What is the probability that the person actually does have cancer?

P = \frac{P(B).P(A/B)}{P(A)} = \frac{0.91*0.009}{0.0675} = 0.1213

There is a 12.13% probability that the person actually does have cancer.

3 0
3 years ago
The regular price of an item is $84. The item is on sale witha discount of $12. What is the discount rate.
sammy [17]

Answer:

Discount = 14.3% (rounded up to one decimal place)

Step-by-step explanation:

The regular price of an item is $84

Discount = $12

Percentage discount = (Discount ÷ regular price) × 100

Percentage discount = \frac{12}{84} × 100 = 14.3% (rounded up to one decimal place)

5 0
3 years ago
3. Which property justifies rewriting
Maksim231197 [3]
B distributive property
7 0
3 years ago
Due to an ice storm, the price of oranges increased from $0.69 a pound to $1.99 a pound from one year to the next. What is the p
DedPeter [7]
The answer must be A. For an explanation, please have a look at the picture.

3 0
3 years ago
Vectors and scalars ________ are-are not the same
givi [52]
Vectors and scalars are not the same quantity
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3 years ago
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