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3 years ago

10 POINTS PLEASE HELPPPPPPPP

Mathematics

2 answers:

Marizza181 [45]3 years ago

5 0

Answer:

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Step-by-step explanation:

Nostrana [21]3 years ago

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Answer:

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PLEASE HELP!!!!<br> Solve for x: 3(x + 1) = −2(x − 1) − 4.<br><br> 1<br> −1<br> −5<br> −25

gtnhenbr [62]

I feel like I just solved this one. its -1 isn't it?

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3 years ago

At LaGuardia Airport for a certain nightly flight, the probability that it will rain is 0.17 and the probability that the flight

mezya [45]

Answer:

100 - (Probability for raining + Probability for fight delay + Probability for Raining and fligth delay ) = Probability for no rain and flight on time.

So, 100-(0.17+0.16+0.07) = Probability for no rain and flight on time.

100-(0.40) = Probability for no rain and flight on time.

99.60=Probability for no rain and flight on time.

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3 years ago

A two digit number is to be formed from the digits 0,1,2,3,4 Repetition of the is allowed. find the probability that the number

ra1l [238]

<h2>Answer:</h2>

<u>Sample space</u> = {10, 11, 12, 13, 14, 20, 21, 22, 23, 24, 30, 31, 32, 33, 34, 40, 41, 42, 43, 44}

∴ n(S) = 20 .

[i] <u>Let A be the event that the number so formed is a prime number</u>.

∴ A = {11,13,23,31,41,43}

∴ n(A) = 6

So, P(A) = n(A)/n(S) = 6/20

∴ P(A) = 3/10.

[ii] <u>Let B be the event that the number so formed is a multiple of 4</u>.

∴ B = {12,20,24,32,40,44}

∴ n(B) = 6

So, P(B) = n(B)/n(S) = 6/20

∴ P(B) = 3/10.

[iii] <u>Let C be the event that the number so formed is a multiple of 11</u>.

∴ C = {11,22,33,44}

∴ n(C) = 4

So, P(C) = n(C)/n(S) = 4/20

∴ P(C) = 1/5.

7 0

3 years ago

Read 2 more answers

A radioactive compound with mass of 260 grams decays at a rate of 3.8% per hour. Which equation represents how many grams of the

Dahasolnce [82]

The exponential equation that represents how many grams of the compound will remain after 8 hours is:

B: C=260(0.962)^8

<h3>What is an exponential function?</h3>

A decaying exponential function is modeled by:

$A(t) = A(0)(1 - r)^t$

In which:

A(0) is the initial value.

r is the decay rate, as a decimal.

A radioactive compound with mass of 260 grams decays at a rate of 3.8% per hour, hence the equation for the mass after t hours is given by:

$A(t) = 260(1 - 0.038)^t$