2 years ago

Solve the equation 3/2(2-6x)+1=3-5x

Mathematics

1 answer:

tigry1 [53]2 years ago

8 0

Answer:

Here's a tip:

Step-by-step explanation:

Use the acronym PEMDAS to solve.

P arenthesis

E xpoments

M ultiplication

D ivsion

A ddition (Left to right)

S ubtraction (Left to right)

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Answer:

0.942 is the required probability.

Step-by-step explanation:

We are given the following in the question:

x is a binomial random variable with n = 5 and p = 0.8.

Then,

$P(X=x) = \binom{n}{x}.p^x.(1-p)^{n-x}$

where n is the total number of observations, x is the number of success, p is the probability of success.

We have to evaluate:

$P(x \geq 3) = P(x = 3) + P(x = 4) +P(x=5)\\\\= \binom{5}{3}(0.8)^3(1-0.8)^2 +\binom{5}{4}(0.8)^4(1-0.8)^1 +\binom{5}{5}(0.8)^5(1-0.8)^0\\\\= 0.2048 +0.4096+0.3276=0.942$

0.942 is the required probability.

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3 years ago

Which is the value of 2c2d if c = 0.5 and d = 3? A. 0.15 B. 1.5 C.33 D. 6 E 15

aksik [14]

Answer:

The answer is D (6).

hope this helps!

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2 years ago

An item costs $300 before tax, and the sales tax is $9.90 . Find the sales tax rate. Write your answer as a percentage.

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Answer:

3.33%

Step-by-step explanation:

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2 years ago

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Goshia [24]

Answer:

It is 13.56

Step-by-step explanation:

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What is decrease £20 by 15%

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$15\%\cdot\pounds20=0.15\cdot\pounds20=\pounds3\\
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2 years ago

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