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3 years ago

More points for an answer

Mathematics

1 answer:

grandymaker [24]3 years ago

5 0

Answer:

23 because i had this test before

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<img src="https://tex.z-dn.net/?f=16%20%7Bx%7D%5E%7B4%7D%20%20-%204%7Bx%7D%5E%7B2%7D%20%20-%204x%20-%201" id="TexFormula1" title

Katen [24]

Answer:

Step-by-step explanation:

3 0

3 years ago

Studies indicate that 10.5% of the US population has diabetes. A producer of medical devices is developing a test for diabetes d

never [62]

Answer:

The answer is "0.95 and 0.5271".

Step-by-step explanation:

$p (d) = 0.905 \\\\p( false\ negative) = 0.05\\\\p(false \ positive ) = 0.10 \\\\$

In point a)

p ( positive diabetes ) $= 1 - 0.05 = 0.95$

In point b)

$p(\frac{d}{+ve}) = \frac{0.105 \times 0.95}{0.105 \times 0.95 +0.895 \times 0.10 }$

$=\frac{0.09975}{0.09975+0.0895}\\\\=\frac{0.09975}{0.18925}\\\\= 0.5271$

5 0

3 years ago

PLEASE HELP ME! ASAP

Leokris [45]

Answer:

I think the answer is 111 degrees

Step-by-step explanation:

you add 19 plus 50 and you get 69

every triangle equals 180 degrees

so then you subtract 180 to 69 and get 111

8 0

3 years ago

A single-server waiting line system has an arrival pattern characterized by a Poisson distribution with 3 customers per hour. Th

sweet-ann [11.9K]

Answer:

18 minutes

Step-by-step explanation:

Given that:

The arrival time = 3 customers / hour

The avg. service rate (s) = 12 minutes per customer

To hour, we have:

$s = \dfrac{60}{12}$

s = 5 customers/ hour

Thus, the required average time for a customer needs to wait in line is:

$= \dfrac{3}{5}\times (5-3) hours \\ \\ = \dfrac{3}{5}\times 2 \\ \\ = \dfrac{3}{10} \ hours$

To minutes;

$= 3 \times \dfrac{60}{10} \ minutes$

= 18 minutes

3 0

3 years ago

A Springer Spaniel weighs 20 kilograms 490grams. A Cocker Spaniel weighs 7,590 grams less than a Springer Spaniel. A Newfoundlan

egoroff_w [7]

It is important that the units of measurement for the masses will be expressed in one unit only. For the purpose of illustration in this problem, we express the masses in kilograms. Hence, the mass of Springer Spaniel is equal to 20.49 kg. With this concept, we determine the mass of Cocker Spaniel.

Mass of Cocker Spaniel = 20.49 kg - 7.59 kg = 12.9 kg

From this calculated mass, we determine the mass of the Newfoundland,

Mass of Newfoundland = 12.9 kg + 52.656 kg = 65.556 kg

The difference of the weights of Newfoundland and Springer Spaniel,
D = 65.556 kg - 20.49 kg = 45.066 kg

<em>ANSWER: 45.066 kg</em>

6 0

3 years ago