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2 years ago

Evaluate this function f(x)= -x2+6x+19 Find f(5)

Mathematics

1 answer:

mario62 [17]2 years ago

7 0

Answer:

f(5) = -10+30+19 = 39

Step-by-step explanation:

f(5) = (-5)2+6(5)+19

-10+30+19

=39

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. A hat contains 100 coins, where 99 are fair but one is double-headed (always landing Heads). A coin is chosen uniformly at ran

SOVA2 [1]

Answer:0.565

Step-by-step explanation:

Hat contain 100 coins out of which 99 is fair and one is double headed.

Probability of getting 7 heads is sum of Head through fair coin+heads through biased coin

Probability of getting a head through a fair coin=0.5

$P(7 heads)=0.99\times 0.5^7+0.01\times 1$

$P(Double head |7 heads )=\frac{Probability\ of\ 7\ heads\ and\ double\ headed}{probability\ of\ 7\ heads}$

$P(Double head |7 heads )=\frac{0.01\times 1}{0.99\times 0.5^7+0.01\times 1}$

$=\frac{0.01}{0.99\times 0.0078+0.01}=0.565$

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2 years ago

Which ordered pair is a solution the the following system?

muminat

Answer:

d is the correct answer .

Step-by-step explanation:

I just guessed

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3 years ago

Please please please help me with this I don’t get it

bezimeni [28]

Hello the answer would be 18

Explanation:
lines KH and JK are congruent.

Line KH=c+18
Line JK=2c

2c=36 divide by 2
c=18

I don’t know how to explain it any other way.. sorry if you don’t understand but mark my answer as brainliest if it helped you out, please.

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2 years ago

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Jlenok [28]

Answer:

X should equal 65, sorry if I’m wrong

Step-by-step explanation:

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2 years ago

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Scrat [10]

Answer:

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3 years ago