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forsale [732]
2 years ago
8

12 1/3 - ( 2x + 3 2/3)

Mathematics
1 answer:
Citrus2011 [14]2 years ago
8 0

Answer:

hello there the correct answer is 16−2x

Step-by-step explanation:

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A new screening test for West Nile Virus is developed for use in the general population. The sensitivity and specificity of the
morpeh [17]

The predictive value of a positive test is is 0.43.

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

This question is solved using the concepts of sensitivity and specificity.

  • Sensitivity: It is the true negative rate, that is, the proportion of people without the disease that test negative.
  • Specificity: It is the true positive rate, that is, the proportion of people with the disease that test positive.

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

  • Sensitivity of 60% means that of the 100 - 10 = 90% of people without the disease, 60% test negative and 100 - 60 = 40% test positive.
  • Specificity of 70% means that of the 10% with the disease, 70% test positive.

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

The predictive value of a positive test is:

Probability of a positive test, which is 40% of 90% plus 70% of 10%, so:

p = 0.4\times0.9 + 0.7\times0.1 = 0.43

The predictive value of a positive test is is 0.43.

A similar question is given at brainly.com/question/22373775

7 0
2 years ago
3, 265 pounds is how many ounces? ​
Bad White [126]

Answer:

52,240 oz

Step-by-step explanation:

1 lb = 16oz

3,265×16=52,240 oz

4 0
3 years ago
Read 2 more answers
Need help please, thanks!
MakcuM [25]
Given:
1 inch : 18 kilometers

Let us use the ratio and proportion method:

a:b = c:d where ad = bc

0.8 inches is <u>14.4 kilometers</u>

1 : 18 = 0.8 : x
x = 0.8 * 18
x = 14.4 km

1.4 inches is <u>25.2 kilometers</u>

1: 18 = 1.4 : x
x = 18 * 1.4
x = 25.2 km

2.1 inches is <u>37.8 kilometers</u>

1 : 18 = 2.1 : x
x = 18 * 2.1
x = 37.8 km

4 0
3 years ago
If someone treat at geometry has anyntime could you come answer my question
ki77a [65]
I am pretty good at any math and I love a good challenge. What is your question because I'd be glad to help!!!
4 0
3 years ago
Find the 19th term in each sequence. 11, 33, 99, 279
Paladinen [302]

Answer:

Step-by-step explanation:

hello : note 297 no 279

297 =3×99

99 = 3 ×33

33=3×11

this the geometric sequence. ( comon : 3)

the nth term is : An = A1 × r^n     when : r = 3 and A1 =11

if n = 19      A19 = 11×3^19

8 0
2 years ago
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