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3 years ago

Year 10

Mathematics

1 answer:

mylen [45]3 years ago

6 0

Answer:

=3x³+2x²−27x−18

Step-by-step explanation:

(x+3)(x−3)(3x+2)

=((x+3)(x−3))(3x+2)

=((x+3)(x−3))(3x)+((x+3)(x−3))(2)

=3x³−27x+2x²−18

=3x³+2x²−27x−18

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WHAT is 1+6+8+9+7-5+81

snow_lady [41]

Step-by-step explanation:

1+6+8+9+7-5+81

= 107

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5 0

4 years ago

What is the maximum value of P = 24x + 30y, given the constraints on x and y listed below?

inessss [21]

Answer:

Answer:So the maximum value of P is 138.Step-by-step explanation:

P(0,0)= 24(0) + 30(0) =0

P(0,1)= 24(0) + 30(1) =30

P(5,0)= 24(5) + 30(0) =120

P(2,3) =24(2) + 30(3) = 138I also

8 0

2 years ago

Read 2 more answers

In a typical children's soccer game, there is one goal scored approximately every 18 minutes. The number of goals scored follows

Alja [10]

Answer:

2.24

Step-by-step explanation:

The probability formula using a Poisson distribution is:

$P(k\ events) = \frac{\lambda^{k}e^{-\lambda}}{k!} \\\lambda\ is\ the\ average\ number\ of\ events\ per\ interval \\e\ is\ euler's\ number \\k\ is\ the\ number\ of\ events\ you\ want\ to\ calculate$

λ = 90 / 18 = 5 average goals per interval (interval = a game)

So if for example you were interested in the probability of making 2 goals in a game

k = 2

$P(k = 2) = \frac{5^{2}e^{-5}}{2!} = 0.084$

This was just an example,

The standard deviation is $\sqrt{\lambda}$

$\sigma = \sqrt{\lambda} \\\sigma = \sqrt{5} \\\sigma = 2.24$

8 0

3 years ago

The difference between two positive integers is 44. if the smaller is added to the square of the larger, the sum is 376376. find

pochemuha

Let a be the bigger number and b the smaller.

So a-b=44

and a^2+b=376376

(44+b)^2+b=376376

b^2+89b -374440=0

Solve for b and you get a. Are you sure it is 376376 not 376?

5 0

3 years ago

What is 300 divided by 400

Anna35 [415]

Answer:

0.75

Step-by-step explanation:

300 out of 400 is the same as 3/4.

3/4 converted to a decimal is 0.75.

8 0

3 years ago