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kolbaska11 [484]
3 years ago
9

What inequality is true when x=3

Mathematics
2 answers:
Aleks04 [339]3 years ago
4 0
The answer is D 
50x =< 150
Dafna11 [192]3 years ago
3 0
Yes the answer is D because 50(3)= 150 so it is less than or equal to 150
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Use the formula for the area of a circle to solve for the radius of the circle if the area is 78.5cm^2
postnew [5]

Answer:

Area = PI * radius^2

radius = Sq Root (Area / PI)

radius = Sq Root (78.5 / PI)

radius = Sq Root (24.9873260654)

radius = 4.9987

radius = 5 (rounded)



Step-by-step explanation:


5 0
3 years ago
What is the graph of 3x + 5y = –15? Image for option 1 Image for option 2 Image for option 3 Image for option 4
saveliy_v [14]
Move x
5y = - 15 - 3x
y = - 3 - 3/5x
y = - 3/5 - 3
-y = 3/5 + 3
6 0
2 years ago
What is 118.083 rounded to the nearest tenth and hundredth
charle [14.2K]

Answer: 118.1 and 118.08


Step-by-step explanation:

For tenths 118.1 and for hundredth it is 118.08

6 0
3 years ago
Which problem is solved using this model?
AfilCa [17]
That would be 1/2 divided by 3

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7 0
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Read 2 more answers
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
2 years ago
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