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3 years ago

Find the TOTAL surface area. * 41 cm 18 cm 18 cm

Mathematics

1 answer:

Andreas93 [3]3 years ago

6 0

Answer:

3600

Step-by-step explanation:

41*18*4=2952, 2952+(18*18*2)=3600.

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Geometry math question no Guessing and Please show work

galina1969 [7]

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2 years ago

Which of the following operations could you perform on both sides of the given equation to solve it? check all that apply. 8x -

antiseptic1488 [7]

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3 years ago

Milli plans to rent a room for her birthday party for $40. The catering charge is $12 per person but there is no charge for Mill

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3 years ago

Read 2 more answers

A diagnostic test for a disease is such that it (correctly) detects the disease in 90% of the individuals who actually have the

Ne4ueva [31]

Answer:

0.2177 = 21.77% conditional probability that she does, in fact, have the disease

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: Test positive

Event B: Has the disease

Probability of a positive test:

90% of 3%(has the disease).

1 - 0.9 = 0.1 = 10% of 97%(does not have the disease). So

$P(A) = 0.90*0.03 + 0.1*0.97 = 0.124$

Intersection of A and B:

Positive test and has the disease, so 90% of 3%

$P(A \cap B) = 0.9*0.03 = 0.027$

What is the conditional probability that she does, in fact, have the disease

$P(B|A) = \frac{P(A \cap B)}{P(A)} = \frac{0.027}{0.124} = 0.2177$

0.2177 = 21.77% conditional probability that she does, in fact, have the disease

3 0

3 years ago

A square has side length represented by X +4 inches write an expression to represent the area. Express your answer as a trinomia

romanna [79]

Answer:

$A=(x^2+16+8x)\ \text{inches}^2$

Step-by-step explanation:

Given that,

The side length of a square, l = (x+4) inches

We need to find an expression to represent the area of the square.

The area of a square is given by :

$A=\text{side}^2$

So,

$A=(x+4)^2\\\\A=(x^2+16+8x)\ \text{inches}^2$

So, the area of the square is $(x^2+16+8x)\ \text{inches}^2$ .

7 0

2 years ago