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Strike441 [17]
3 years ago
7

Yeah I'm failing math, can you pls help?​

Mathematics
1 answer:
belka [17]3 years ago
3 0

Step-by-step explanation:

Area=9π

r=3

Circumference=6πcm

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An investigative bureau uses a laboratory method to match the lead in a bullet found at a crime scene with unexpended lead cartr
Firlakuza [10]

Answer:

Step-by-step explanation:

Given that, we have 1851 bullets that we KNOW are NOT MATCHES of one another. One by one they examine two bullets at a time.

So, there are 1851 bullets but each time we choose 2.

We have, N choose K = N! / K! (N-k)!

Here, N = 1851 and K = 2

Therefore, 1851 choose 2 = 1851! / 2! (1851-2)!

                                         = 1851! / 2! * 1849!

                                         = 1712175 Possible Combinations

Out of these 653 are false positive.

The chance of getting false positive is = 658 / 1712175

                                                            = 0.000384

                                                           = 0.0384 %

Therefore, The correct option is

The chance of false positive is 0.0384% Because this probability is sufficiently small (< or = 1%) There is high confidence in the agency's forensic evidence.

3 0
4 years ago
If triangle RST is an acute triangle, then measure angle S must be? Less then 90 , equal to 90 , equal to 100 , or greater than
fgiga [73]
It must be less than 90 because acute triangles have angle under 90
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4 years ago
As the time___, the water___
Tasya [4]

Answer:

As time increases water decreases

3 0
3 years ago
How I can answer this question, NO LINKS, If you answer correctly I will give u brainliest!
luda_lava [24]

Step-by-step explanation:

<h3>Answer:</h3>

\frac{3 {}^{6} }{3 {}^{4} }

3 from the numerator was multiplied six times, and 3 from the denominator is multiplied 4 times. The small number at the top right (which is the exponent) of the 3 is how much the number is repeated.

7 0
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Lesechka [4]

At a rate of interest of 3.86% compounded annually investment will be tripled.

that is how i was taut, sorry if is wrong

4 0
3 years ago
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