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Anna35 [415]
3 years ago
14

1. What is the y-inter slope of the graph? What does it mean in terms of this situation?

Mathematics
1 answer:
notka56 [123]3 years ago
8 0

Answer:

1. the y-intercept is 9.5 and it means the starting length of the candle

2. the slope is -1/2 and it means that the candle burns 1/2 an inch every hour

3. it burns an inch every 2 hours, it is 9.5 inches long, so 19 hours it'll take to burn.  

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Can you help me to solve this​
Ber [7]

Answer:

\frac{4a-2}{2a+1}

Step-by-step explanation:

Factorise the numerator and denominator

8a² - 2 ← factor out 2 from each term

= 2(4a² - 1) ← 4a² - 1 is a difference of squares

= 2(2a - 1)(2a + 1)

4a² + 4a + 1 ← is a perfect square

= (2a + 1)²

Thus

\frac{8a^2-2}{4a^2+4a+1}

= \frac{2(2a-1)(2a+1)}{(2a+1)(2a+1)} ← cancel (2a + 1) on numerator/ denominator

= \frac{2(2a-1)}{2a+1}

= \frac{4a-2}{2a+1}

3 0
3 years ago
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Raleigh went to a gaming arcade for his birthday. His parents gave him $55 to spend. He purchased $14.25 in
amid [387]

Answer:

23 games

Step-by-step explanation:

40.75 divide by 1.25 comes out 23.28

8 0
3 years ago
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A bacteria culture starts with 120 and after 3 hours the population consists of 200 bacteria. What is the rate of the increase t
posledela
The rate of the increase to the nearest percent is 30 percent
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3 years ago
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The math department faculty at a large university wanted to know what portion of the student body believes students should be ab
Leya [2.2K]

Answer:

The population of interest for this student is the students whom are enrolled in statistics classes.

Step-by-step explanation:

Sampling

This is a common statistics practice, when we want to study something from a population, we find a sample of this population.

For example:

I want to estimate the proportion of New York state residents who are Buffalo Bills fans. So i ask, lets say, 1000 randomly selected New York state residents wheter they are Buffalo Bills fans, and expand this to the entire population of New York State residents.

The population of interest are all residents of New York State.

A simple random sample of 500 students was selected from all the students enrolled in statistics classes.

This means that the population of interest for this student is the students whom are enrolled in statistics classes.

3 0
2 years ago
Find the area of a circle whose circumference is 18.84.
ivann1987 [24]

Answer:

310.23

Step-by-step explanation:

circumference is radius * 2

to get radius from circumference, divide circumference by 2

18.84 / 2 =9.42

area for circle:

pi * r^2

3.14 * 9.94^2

3.14 * 98.8

310.23

7 0
1 year ago
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