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3 years ago

Factorise 3x^2+5x+2 answers please

Mathematics

2 answers:

Dmitrij [34]3 years ago

8 0

Answer:

using the Quadratic Formula:x=−5±52−4⋅3(−2)−−−−−−−−−−−√2⋅3=13,−2

3x2+5x−2=3(x−13)(x+2)=(3x−1)(x+2)

Step-by-step explanation:

Oliga [24]3 years ago

3 0

Answer:

Step-by-step explanation:

3x² + 5x + 2 = 3x² + 3x + 2x + 2

=3x*(x + 1) + 2*(x + 1)

= (x + 1)(3x + 2)

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3 years ago

Suppose that the annual rainfall in Ferndale, California, is known to be normally distributed, with a mean of 35.5 inches and a

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The average annual rainfall will be more than 40.6 inches in about 2.1 percent of the years.

<h3>What is the average annual rainfall?</h3>

Generally, the equation for the probability is mathematically given as

$P( X < x) = p( Z < x - \mu / \sigma)$

Therefore

$P( X > x) = 0.021$

$P( X < x ) = 1 - 0.021\\\\\p( X < x) = 0.979$

$P( Z < x - \mu / \sigma) = 0.979$

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$x - \mu / \sigma \\\\x= 2.034$

In the given equation, replace the values of mu and sigma with their respective values, and then solve for x.

$x - 35.5 / 2.5 \\x= 2.034$

In conclusion, The average annual rainfall will be more than 40.6 inches in about 2.1 percent of the years.