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3 years ago

B) (2, 1) and (-2,3)

Mathematics

2 answers:

Anarel [89]3 years ago

6 0

The slope is -1/2 because of the axis

natka813 [3]3 years ago

3 0

Slope is -1/2. The y value decreases one every 2 increases in the x value. The y-intercept is y = 2. The equation is Y = -1/2x + 2

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Pls help I'll mark brainliest and it's 20 points, very important!

mafiozo [28]

Answer:

The solution h < 5.5 means that Melanie can rent the bike for no more than 5.5 hours.

Hope this helps :)

Explanation and Check part below.

Step-by-step explanation:

1. Isolate the variable by doing the inverse operation which is in this case subtracting 6 on bothsides of the equation.

8h + 6 < 50

- 6 - 6

8h < 44

2. Dive both sides of the equation by 8.

8h < 44

--- ----- <--------- fraction bar, divide

8 8

h < 5.5

4 0

1 year ago

1 and 5/6 + 2 and 2/11

lions [1.4K]

$1 \frac{5}{6} +2 \frac{2}{11} =\frac{(1\times6)+5}{6} +\frac{(2\times 11)+2}{11} =\frac{11}{6}+\frac{24}{11} \\\\=\frac{11\times 11}{6\times 11} +\frac{24\times6}{11\times6} =\frac{121}{66} +\frac{144}{66}=\frac{121+144}{66} =\frac{265}{66}\\\\=\boxed{\bf{4\frac{1}{66}}}$

3 0

3 years ago

A random sample of 747 obituaries published recently in Salt Lake City newspapers revealed that 344 (or 46%) of the decedents di

cupoosta [38]

Answer:

The probability value is almost equal to 0. Implying that the proportion of people dying in that particular interval if deaths occurred randomly throughout the year is unusual.

Step-by-step explanation:

The random variable X can be defined as the number of decedents who died in the three-month period following their birthdays.

A random sample of 747 obituaries published recently in Salt Lake City newspapers revealed that 344 (or 46%) of the decedents died in the three-month period following their birthdays (123).

The probability (p) of anyone dying in any quarter if people die randomly during the year is simply 0.25.

The random variable X follows a Binomial distribution with parameters n = 747 and p = 0.25.

But the sample selected is too large and the probability of success is small.

So a Normal approximation to binomial can be applied to approximate the distribution of p if the following conditions are satisfied:

np ≥ 10
n(1 - p) ≥ 10

Check the conditions as follows:

$np=747\times 0.25=186.75>10\\n(1-p)=747\times (1-0.46)=560.25>10$

Thus, a Normal approximation to binomial can be applied.

So, $p\sim N(\hat p,\ \frac{\hat p(1-\hat p)}{n})$ .

Compute the probability that 46% or more would die in that particular interval if deaths occurred randomly throughout the year as follows:

$P (p\geq 0.46)=P(\frac{p-\hat p}{\sqrt{\frac{\hat p(1-\hat p)}{n}}}>\frac{0.46-0.25}{\sqrt{\frac{0.25(1-0.25)}{747}}})$

$=P(Z>13.25)\\=1-P(Z$

*Use a z table for the probability.

The probability value is almost equal to 0. This probability is very low indicating that the proportion of people dying in that particular interval if deaths occurred randomly throughout the year is unusual.

3 0

3 years ago

About 100,000 cans are recycled every minute in the United states. about how many cans are recycled in 24 hours?

lana66690 [7]

The answer is C because 24 times 10 to the 5th power is the same as 100,000 times 24

8 0

3 years ago

Which of the following correctly describes the domain of the function shown

labwork [276]

Option D:

$\{x: x \neq 1\}$ is the domain of the function.