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Anna35 [415]
4 years ago
15

I’m stuck on this question :/

Mathematics
2 answers:
Gre4nikov [31]4 years ago
3 0
Moose Tracks - 245 people
Chocolate - 140 people
Rocky Road - 175 people
Vanilla - 140 people
CaHeK987 [17]4 years ago
3 0

Answer:

vanilla = 140 people

Step-by-step explanation:

All of these choices in percent combined will be 100%.

So,

35%+20%+25%+vanilla = 100%

or, vanilla = 20%.

This means 20% of the total people like vanilla.

Converting this statement,

20% * total people = vanilla

vanilla = 20% * 700

vanilla = 140 people

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spayn [35]
C is correct answer I think :)
8 0
3 years ago
Military radar and missile detection systems are designed to warn a country of enemy attacks. A reliability question deals with
Nadusha1986 [10]

Answer:

Step-by-step explanation:

Given that a particular detection system has a 0.83 probability of detecting a missile attack.

Also each system is independent of the other to detect missile attack.

a)  the probability that a single detection system will detect an attack=0.83

b) the probability that at least one of the systems will detect the attack given two systems= 1-Prob no system detects

=1-(1-0.83)(1-0.83)\\\\=1-0.0289\\=0.9711

c)  If three systems are installed,  the probability that at least one of the systems  will detect the attack

= 1- none of the three systems detect attack

= (1-0.17^3)\\=1-0.004913\\=0.995087

d) We find that probability of detecting is more if we increase the system form 1 to 2 and 2 to 3.

Hence for safety and defence purpose multiple detection system is recommended.

7 0
3 years ago
Write 0.452 as a percent. Round to the nearest whole number.
makkiz [27]

Answer:

45%

Step-by-step explanation:

8 0
3 years ago
Multiply 4 and 7. Then, divide by q.
Makovka662 [10]

Answer:

28/q

Step-by-step explanation:

4 times 7 equals 28 and then divide 28 by q

5 0
3 years ago
2x^2 +5x+3/x^2+2x+1​
german

Answer:

\frac{2x+3}{x+1}

Step-by-step explanation:

2x² + 5x + 3 = (x + 1) (2x + 3)

x² + 2x + 1 = (x + 1) (x + 1)

(x + 1) cancels out because there is one in the denominator and the numerator, leaving you with the answer.

Hope this helps!

3 0
3 years ago
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