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3 years ago

Factor completely x 3 + 2x 2 – 15x

1 answer:

7 0

To show exponents, use the symbols button under the answer box or use ^ such as 4² or 4^2 to show 4 to the second power.

x³ + 2x² - 15x Find the LCD or the least common denominator; x

x(x² + 2x -15) is factored completely

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vlada-n [284]

Answer:

132, 390, 244, 492

Step-by-step explanation:

those are the answers in order

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1 year ago

What are the points of intersections of the function g(x)=x+1

inessss [21]

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2 years ago

How many liters is 250,000 cm3?

eimsori [14]

Once cubic centimeter = 1 milleter

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2 years ago

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Find the shaded area.<br> 12 cm<br> 8 cm<br> 8 cm<br> 18 cm

Mrrafil [7]

Answer:

152 cm²

Step-by-step explanation:

The shaded area is calculated as

outer area - inner white area

= (12 × 18) - (8 × 8 )

= 216 - 64

= 152 cm²

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2 years ago

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The mass of a species of mouse commonly found in houses is normally distributed with a mean of 20.2 grams with a standard deviat

Sophie [7]

Answer:

12.1%

Step-by-step explanation:

Given that:

Mean (μ) = 20.2 grams and standard deviation (σ) = 0.18 grams.

The z score is a score used to determine the number of standard deviations by which the raw score is above or below the mean. A positive z score means that the raw score is above the mean and a negative z score means that the raw score is below the mean. It is given by:

$z=\frac{x-\mu}{\sigma}$

a) For x < 19.99 g:

$z=\frac{x-\mu}{\sigma}\\\\z=\frac{19.99-20.2}{0.18} \\\\z=-1.17$

From the normal distribution table, P(x < 19.99) = P(z < -1.17) = 0.1210 = 12.1%

The probability that a randomly chosen mouse has a mass of less than 19.99 grams is 12.1%

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2 years ago