3 years ago

Subtract (3x^3+4x^2)-(2x^3+3x^2-x)

Mathematics

1 answer:

insens350 [35]3 years ago

4 0

Answer:

X^3 + x^2 + x

Step-by-step explanation:

First, distribute the negative sign to the numbers in the second parentheses. Then you’ll need to combine like terms.

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How to factor out expressions

Brut [27]

To factor an expression:

1: find a common factor

2: divide a common factor by a term

3: divide any other terms after putting in parenthesis

4: simplify

Sorry if I just confused you. >///< Ty for reading.

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3 years ago

Assume the random variable X is normally distributed with mean muequals50 and standard deviation sigmaequals7. Find the 87 th pe

serious [3.7K]

Answer:

57.885

Step-by-step explanation:

For such calculations a probability calculator is very helpful. The one in the attachment shows the 87th percentile to be 57.885.

___

A table of the standard normal distribution will tell you the 87th percentile corresponds to a z-value of 1.12639. Then the X value is ...

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3 years ago

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blondinia [14]

Harley is 15 years less than seven times Marcy's age, so that means Haley + 15 = 7 * Marcy

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Marcy's age is 8.

Hope this helped =)

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3 years ago

What is the measure of AngleJHG?

Doss [256]

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3 years ago

What is the area of the donut?

mrs_skeptik [129]

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