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2 years ago

Evaluate: 3x^2 + y when x=1 and y=-3

Mathematics

1 answer:

masya89 [10]2 years ago

3 0

Answer:

Step-by-step explanation:

3x^2 + y ( If x = 1, and y = -3)

= 3(1)^2 + (-3)

= 3 + -3

= 0

Cheers.

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3 years ago

You roll a 6-sided die two times. What is the probability of rolling a number greater than 5 and then rolling a 1?

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Answer:

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2 years ago

The life expectancy of a particular brand of tire is normally distributed with a mean of 40,000 and a standard deviation of 5,00

timama [110]

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Step-by-step explanation:

Since the life expectancy of a particular brand of tire is normally distributed, we would apply the formula for normal distribution which is expressed as

z = (x - µ)/σ

Where

x = life expectancy of the brand of tire in miles.

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σ = standard deviation

From the information given,

µ = 40000 miles

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3 years ago

Which of the following is defined by a line parallel to one side of a triangle

Katarina [22]

Answer:

Triangle Proportionality Theorem is defined by a line parallel to one side of a triangle divides the other two sides proportionally.

Step-by-step explanation:

Triangular Proportionality Theorem states that:

If a line parallel to one side of a triangle intersects the other two sides, then it divides those sides proportionally.

Let us consider the triangle ΔABC as shown in attached figure.

$DE$ ║ $AC$

then

$\frac{BD}{DA} = \frac{BE}{EC}$

Therefore, Triangle Proportionality Theorem is defined by a line parallel to one side of a triangle divides the other two sides proportionally.

Keywords: Triangle Proportionality Theorem, triangle, line segment

Learn more about Triangle Proportionality Theorem from brainly.com/question/11827486

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3 years ago