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Reika [66]
2 years ago
7

Which equation can be used to find the volume of this solid? A rectangular prism with a length of 5 centimeters, width of 4 cent

imeters, and height of 2 centimeters. V = 2 times 4 times 5 V = 2 + 5 + 4 V = 2 times 5 V = 4 times 5
Mathematics
1 answer:
eimsori [14]2 years ago
4 0

Answer:A: V= (2)(4)(5)

Step-by-step explanation:

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The test to detect the presence of respiratory syncytial virus is 97% accurate for a person who has the virus and 99% accurate f
Setler79 [48]

Answer:

The probability that a randomly selected person gets incorrect result is 2.2 × 10⁻⁴

Step-by-step explanation:

The parameters given are;

The accuracy of the test for a person who has the respiratory synctial virus = 97%

The accuracy of the test for a person who does not have the respiratory synctial virus = 99%

We have;

a = TP =

b = FP

c = FN

d = TN

a/(a + c) = 0.97

d/(d + b) = 0.99

a/(a + b) = 0.97*0.0055/(0.97*0.0055 + (1 - 0.99)*(1-0.0055))

PPV = 0.349 = 34.9%

Therefore, we have;

a/(a + c) = 0.97 and

a/(a + b)  =  0.349

0.97(a + c) =0.349(a + b)

(0.97 - 0.349)a = 0.349·b - 0.97·c

a = (0.349·b - 0.97·c)0.621

b × (1 - 0.0055) = (1 - 0.97)×(1 - 0.0055)

b = 1 - 0.97 = 0.03

Similarly,

c = 1 - 0.99 = 0.01

The proportion of the population that have false positive and false negative = 0.03 + 0.01 = 0.04 = 4%

The probability that a randomly selected person gets incorrect result = 0.04×0.0055 = 0.00022.

5 0
3 years ago
Whats a method you can use for times tables?
Sholpan [36]
For the 9 times table, in the answer section, order the answers 9,1,2,3,4,5,6,7,8,9 and then backwards order 0,1,2,3,4,5,6,7,8. This is a very easy way to understand the 9 times table.
4 0
3 years ago
Read 2 more answers
Four tenths plus four ninths
olga2289 [7]

Answer:

38/45

Step-by-step explanation:

4/10+4/9 Simplify.

2/5*4/9    Find a common denominator (45).

2/5*9/9=18/45

4/9*5/5=20/45

18/45+20/45=38/45

Hope this helps and have a great day C:

8 0
2 years ago
PLEASE HELP QUICK<br> graph and show work and i will give 30 points
Natasha_Volkova [10]
The equation is
4x-2y=-2
4x=2y-2
4x+2=2y
2x+1=y

8 0
3 years ago
A local donut shop charged $6.50 for a dozen and provided a coupon in the newspaper for $1.50
marusya05 [52]
The red one y=6.50x-0.75
3 0
3 years ago
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