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3 years ago

How do I solve5 (X) +16.81 ( 1 - X) = 7

Mathematics

1 answer:

DerKrebs [107]3 years ago

4 0

First, use distributive property to expand whats in the brackets
second, isolate x by putting all terms with x on one side
divide both sides by -11.81 to have x on its own.

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Sever21 [200]

133.74-9.99=123.75
123.75/.25=495

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2 years ago

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Ket [755]

Answer:

Hmmm... There's no question which leads to the reasoning that there is no answer.

Step-by-step explanation:

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3 years ago

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Alinara [238K]

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3 years ago

The random variable X~(30,2^2) Find p(X<33) Find p(X>26)

Ostrovityanka [42]

Answer:

i) P(X<33) = 0.9232

ii) P(X>26) = 0.001

Step-by-step explanation:

Step(i):-

Given that the mean of the Population = 30

Given that the standard deviation of the Population = 4

Let 'X' be the Normal distribution

Step(ii):-

Given that the random variable X = 33

$Z = \frac{x-mean}{S.D}$

$Z = \frac{33-30}{2} = 1.5$ >0

P(X<33) = P( Z<1.5)

= 1- P(Z>1.5)

= 1 - ( 0.5 - A(1.5))

= 0.5 + 0.4232

P(X<33) = 0.9232

Step(iii) :-

Given that the random variable X = 26

$Z = \frac{x-mean}{S.D}$

$Z = \frac{33-26}{2} = 3.5$ >0

P(X>26) = P( Z>3.5)

= 0.5 - A(3.5)

= 0.5 - 0.4990

= 0.001

P(X>26) = 0.001

5 0

2 years ago

Simplify these expressions 2a + 5a 12x-3x 3p+2p-p

Novosadov [1.4K]

Step-by-step explanation:

1.solution

=2a+5a

=7a

2.solution

=12x-3x

=9x

3.solution

=3p+2p-p

=5p-p

=4p

Hope it helps you.

6 0

2 years ago

Read 2 more answers