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mafiozo [28]
3 years ago
12

Solve for x A. 27 B. 37 C. 30 D. 31​

Mathematics
1 answer:
Murljashka [212]3 years ago
8 0

Answer:

A

Step-by-step explanation:

i think

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g Suppose a kind of disease exists within 1% of the population and a certain test can help diagnose it. If someone has the disea
likoan [24]

Answer:

0.0392 = 3.92% probability that the test result is positive.

Step-by-step explanation:

Probability of a positive test:

95% of 1%(person has the disease)

100 - 97 = 3% of 100 - 1 = 99%(person does not have the disease).

What is the probability that the test result is positive?

p = 0.95*0.01 + 0.03*0.99 = 0.0392

0.0392 = 3.92% probability that the test result is positive.

4 0
3 years ago
The scores of Tim’s first four math tests are 82%, 90%, 78%, and 100%. If Tim wants to
Crank
<span> 82+ 90+78+100 = 350
</span><span>Tim wants to have a test average of 90% on all of his 6 tests then
</span>90 x 6 = 540

540 - 350 = 190

<span> the average of Tim’s next two tests = 190 / 2 = 95

answer
</span><span>average of Tim’s next two tests must be 95</span>
5 0
4 years ago
What is 1735/1000 written as a decimal?
Marat540 [252]

Answer:

\frac{1735}{1000} as a decimal is 1.735.

Step-by-step explanation:

To convert a fraction into a decimal, you first have to put the fraction into simplest form.

1. Simplest form

\frac{1735}{1000} = \frac{347}{200}\\\

To do this you must find a number you can equally divide both numbers by.

That number in this situation, 5.

1000/5= 200\\1735/5= 347\\1735:1000 = 347:200\\\frac{1735}{1000} =\frac{347}{200}

Now you must make this simplest formed fraction into a mixed number.

2. Simplest form into Mixed number

\frac{347}{200}= 1\frac{147}{200}

To do this you see how many times the denominator, the bottom number of the fraction, goes into the numerator, the upper part of the fraction.

Since 200 x 2 = 400 and since 400 > 347 this means...

200 goes into 347, once.

Finally, subtract and divide.

Remember put the whole number in front of the mixed number, before the decimal

3. Subtract, divide, decimalize

147/200= 0.735\\\\1\frac{147}{200}= 1.735

Hopes this helps you!

Have a good afternoon!

5 0
3 years ago
A rectangular pool is 30 1/3 feet long and 12 1/2 feet wide. what is the area of the pool?
Liula [17]

Answer:

381.25 or 381 1/4 feet

Step-by-step explanation:

Area is a rectangle is length times width. so,

30.5*12.5 = 381.25

5 0
3 years ago
What polynomial function could be represented by the graph below
kotegsom [21]

Answer:

(B). F(X)=2x^2+2x-4

Step-by-step explanation:

-4 means it passes through -4 at the y axis

B and D have -4

graph passes thru x axis at -2 and 1

if you enter x = -2 or 1 in the formula

(B). F(X)=2x^2+2x-4

you get 0

it's not D because when you enter -2 or 1 for x

you don't get 0

you get 8 and -4

3 0
3 years ago
Read 2 more answers
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