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3 years ago

In 1992, there were 120 students in the freshmen class. in 2005, there were 224. find the rate of change from 1992 to 2005.

Mathematics

1 answer:

kolezko [41]3 years ago

7 0

b) 8

they were asking you about the rate of increase in students per year

so you take increase in students/years= (224-120)/(2005-1992)=104/13=8

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You draw a card at random from a deck that contains 333 black cards and 777 red cards. What is \text{P(draw a black card})P(draw

enot [183]

Answer:

The probability of picking a black card at random, from a deck with 3 black cards and 7 red ones is 0.3.

Step-by-step explanation:

We will assume that we have 3 black cards and 7 black cards, for a total of 10 cards. Since we are taking one card at random, we can assume that each card is equally likely to be drawn. We have the following event A: The drawn card is a black. We will find the probability of A as counting the number of outcomes that make A to occur and divide it by the total number of possibilities. We are drawing one card, so we have 10 possibilities to be picked. Out of those 10, only 3 cards are black, hence we have 3 possibilites of picking a black card.

Then,

P(A) = 3/10 = 0.3.

6 0

3 years ago

-2x+4=10 3/4x =2 Plz help ill give brainly

Archy [21]

Answer:

$a) \: - 2x + 4 = 10 \\ 4 = 10 + 2x \\ 4 - 10 = 2x \\ - 6 = 2x \\ \frac{ - 6}{2} = x \\ - 3 = x \: or \: x = - 3 \\ \\ b) \: \frac{3}{4x} = 2 \\ 3 = 2 \times 4x \\ 3 = 8x \\ x = \frac{3}{8} \\ 0.375 = x \: \: or \: x = 0.375$

Step-by-step explanation:

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2 years ago

Find the slope of the line passing through the points (-5,2) and (-8,8).

sattari [20]

Answer:

slope = -2

Step-by-step explanation:

(-5,2) (-8,8)

equation to find slope: $\frac{y1 - y2}{x1 - x2}$

$\frac{2-8}{-5+8}$ = $\frac{-6}{3}$ = $\frac{-2}{1}$ = -2

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2 years ago

. How many faces does a polyhedron with 20 vertices and 30 edges have?

Alisiya [41]

Answer:

Step-by-step explanation:

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2 years ago

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The coefficient of determination is used to: compute correlations for truncated ranges. compare the relative strength of coeffic

kozerog [31]

Answer: compare the relative strength of coefficients.

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2 years ago