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2 years ago

It say to state weather each figure is a polyhedron

1 answer:

3 0

A polyhedron is a three dimensional figure in which each side is made up of other two dimensional geometric figures, like triangles, hexagons, etc.

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The diagram shows the number of dollars each child has a family how can you redistribute the money oth at each child

xeze [42]

Answer:

0.24

Step-by-step explanation:

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2 years ago

The probability of an outcome that lies within 68% of the mean is a good indicator that it lies in which standard deviation?

kotegsom [21]

Yes the probability of an outcome that lies within 68% is a good indicator that lies in which standard deviation.

8 0

2 years ago

Give the line that is parallel to the line y=-5x-2 and goes through (3,-9)

igor_vitrenko [27]

Answer: I don’t think there is such a line. A Line that passes through the point (3,-9) must have a positive slope, unlike the line y=-5x-2, which has a negative slope. If a line where to go through (3,-9), is would intersect the line you presented.

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1 year ago

The price of a computer component is decreasing at a rate of 15% per year. State whether this decrease is linear or exponential

Margaret [11]

Answer:

Since the price is given by an exponential function, the decline in price is exponential.

The component will cost $36.8475 in three years.

Step-by-step explanation:

The equation for the price of a component has the following format:

$P(t) = P(0)(1-r)^{t}$

In which P(t) is the price after t years, P(0) is the initial price, and r is the rate that the price decreases.

Since the price is given by an exponential function, the decline in price is exponential.

The price of a computer component is decreasing at a rate of 15% per year.

This means that $r = 0.15$

Component costs $60 today

So P(0) = 60. Then

$P(t) = P(0)(1-r)^{t}$

$P(t) = 60(1-0.15)^{t}$

$P(t) = 60(0.85)^{t}$

What will it cost in three years?

This is P(3).

$P(t) = 60(0.85)^{t}$

$P(3) = 60(0.85)^{3} = 36.8475$

The component will cost $36.8475 in three years.

6 0

2 years ago

-| 15| simplify the expression

Viefleur [7K]

Answer:

-15

Step-by-step explanation:

The negative is outside of the absolute value signs/lines. The absolute value is how far the number is from 0. So, it doesn't matter whether or not there is a negative sign inside of the absolute value lines it will always be positive. But, if it's outside of it, then it will be negative.

5 0

3 years ago

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