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3 years ago

Lexi is rehydrating after an intense workout. She

Mathematics

1 answer:

Anuta_ua [19.1K]3 years ago

5 0

Answer:

Step-by-step explanation:

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A business owner noted the features of the 100 cars parked at the business. Here are the results:

AlexFokin [52]

Complete Question

The complete question is shown on the first uploaded image

Answer:

The probability is $P(4 \ doors | sunroof ) = 0.40$

Step-by-step explanation:

From the question we are told that

The number of cars packed is $n = 100$

The objective of this solution is to find the probability that the car which has a sunroof also has four doors

This probability is mathematically represented as

$P(4 \ doors | sunroof )$

Baye's Rule define this probability mathematically as

$P(4 \ doors | sunroof ) = \frac{P(4 \ doors \ n \ sunroof )}{P(sunroof)}$

From the diagram

$P(4 \ doors \ n \ sunroof ) = 20$

and $P(sunroof) = 50$

$P(4 \ doors | sunroof ) = \frac{20}{50}$

$P(4 \ doors | sunroof ) = 0.40$

3 0

4 years ago

What is the constant of proportionality between y and x in the graph?

KatRina [158]

Answer:

y=3x

Step-by-step explanation:

y=kx, where k is constant

3y, 1x...so 3y = 1x

check: looking at the graph at 4.5y, 1.5x where y and x intersect...

4.5=3(1.5)

3 x 1.5 = 4.5

3 0

3 years ago

Find the following equation

adoni [48]

Answer:

$y=\frac{-1}{2}x+7$

Step-by-step explanation:

Slope intercept form: $y=mx+b$ when $m$ is the slope of the line and $b$ is the y-intercept (the y-coordinate of the point the line crosses the y-axis)

1) Find the slope ( $m$ )

$m=\frac{y_2-y_1}{x_2-x_1}$ when the points are $(x_1,y_1)$ and $(x_2,y_2)$

We can use any two points that the table gives us to plug into this equation. For example, we can use the points (14,0) and (0,7):

$m=\frac{0-7}{14-0}\\m=\frac{-7}{14}$

Simplify the fraction

$m=\frac{-1}{2}$

So far, our equation looks like this:

$y=\frac{-1}{2}x+b$

2) Find the y-intercept ( $b$ )

The y-intercept is the y-coordinate of the point the line crosses the y-axis, or in other words, it's the value of y when x is equal to 0.

Looking at the table, we can see that y is equal to 7 when x is equal to 0, so, therefore, $b=7$ .

Now, this is our final equation after plugging in $m$ and $b$ :

$y=\frac{-1}{2}x+7$

I hope this helps!

3 0

3 years ago

What is the slope for (-2,3) (6,-1)

TiliK225 [7]

Answer:

Step-by-step explanation:

The slope of the line between two points can be found with the following equation:

$\frac{y_{2} - y_{1}}{x_{2} - x_{1}}$

Plugging in the points $(x_{1}, y_{1})$ and $(x_{2}, y_{2})$ from the problem statement, we get the following:

$\frac{-1 - 3}{6 - (-2)$

$\frac{-4}{8}$

$\frac{-1}{2}$

3 0

3 years ago

-x+ 5 = 1/3x - 3 (3)

Inessa [10]

Answer:

X = 10.5 or x = 10 1/2 (same thing but one is in fraction form and one is in decimal form)

Step-by-step explanation:

Solve for x

5 0

3 years ago