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3 years ago

Find the 91st term of the arithmetic sequence 5, -14, -33, ...5,−14,−33,...

Mathematics

1 answer:

ivann1987 [24]3 years ago

4 0

Answer:

1724

Step-by-step explanation:

first find the nth term = -19n+5

then do -19×91+5= 1724

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What's the answer????

katrin2010 [14]

A
C
D
E
F

B should be the obvious no-no

7 0

3 years ago

If an aircraft is present in a certain area, a radar correctly registers its presence with probability 0.99. if it is not presen

pishuonlain [190]

Answer:

A) 0.005

B) 0.001

C)0.0495

Step-by-step explanation:

Let A be the event that an aircraft is present and let B be the event the radar registers its presence.. Thus;

P(A) = Probability that an aircraft is present

P(A') = Probability that an aircraft is not present

P(B) = Probability that the radar generates an alarm

P(B') = Probability that the radar doesn't generate an alarm

Thus from what we are given, we have;

P(A) = 0.05

P(A') = 0.95

P(B) = 0.99

P(B') = 0.01

P(B|A') = 0.1

A) Probability of a false alarm will be;

P(A' ∩ B) = P(A) × P(B|A')

P(A' ∩ B) = 0.05 × 0.1 = 0.005

B) probability of missed detection is;

0.1 × (1 - 0.99) = 0.001

C) probability that an aircraft is present given that the radar registers a presence will be;

P(A ∩ B) = P(A) × P(B)

P(A ∩ B) = 0.05 × 0.99

P(A ∩ B) = 0.0495

5 0

3 years ago

How do I solve? -44=-12+8n

taurus [48]

You have to do like draw a number line and do the opposite and you'll get your answer and add them together and you'll get 45.5

8 0

3 years ago

Read 2 more answers

Explain how you could use a number line to determine -5 -(-3)<br><br> What is the difference?

AURORKA [14]

Answer:

The difference is -2

7 0

4 years ago

Order the numbers from least to greatest 7.25%, 7.25×10(-3),7 and 1/4 and 0.725

Alex777 [14]

Quite simple, actually...

so...just simplify all of these numbers...

7.25%=0.0725

7.25*10(-3)--->>7.25*-30....

=-217.5

7 1/4..it's not that hard to change this one.. the $\frac{1}{4}$ is really 0.25, or...

7.25

and finally,

0.725

So, we have...

0.0725,-217.5,7.25 and 0.725

Now, looking at them, they are really easy to see least to greatest...

-217.5, 0.0725, 0.725, and 7.25.

Thus, your answer.

7 0

4 years ago