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gulaghasi [49]
2 years ago
9

Please help asap will give lots of points

Mathematics
2 answers:
horsena [70]2 years ago
8 0
I think it’s the last one I am not sure tho
xz_007 [3.2K]2 years ago
5 0

Answer:

60 is the answer got tho

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What is the equation of a line that passes through the points (3,6) and (8, 4)?
Delvig [45]

Answer:

In the equation y=mx+b, 'm' is the slope of the line and 'b' is the y-intercept.  

First, you should find the slope of the line.  To do this, use the equation M=y2-y1/x2-x1.  Using the two given points (3,6) and (8,4), you can solve for M.  

M=4-6/8-3

M=-2/5 (-0.4 in decimal form)

Now, your equation is y=-0.4x+b

Next you must solve for b to find the y-intercept.  You can do this by subbing one of the given points in for x and y.  

Using the point (3,6):

y=-0.4x+b

6=-0.4(3)+b

6=-1.2+b

Isolate b:

6+1.2=b

b=7.2

And now you have the equation of the line!

y=-0.4x+7.2 (IN FRACTION FORM: y=-2/5x+36/5)

Step-by-step explanation:

7 0
3 years ago
About 9% of the population has a particular genetic mutation. 400 people are randomly selected. Find the mean for the number of
never [62]

Answer:

36 people

Step-by-step explanation:

The expected value E(X) = mean of sample = np

Where, p = population proportion, p = 9% = 0.09

n = sample size, = 400

The mean of the number of people with genetic mutation, E(X) = np = (400 * 0.09) = 36

36 people

7 0
2 years ago
you are attending a pumpkin chunkin event where they launch pumpkins by air cannon into a field. Calculate the acceleration of a
Citrus2011 [14]

Answer:

The acceleration is 965 kg•ms^-2

Step-by-step explanation:

Mathematically;

Force = mass * acceleration

From the question;

Force = 1930 N (kg• ms^-2)

mass = 2kg

Acceleration = Force/mass = 1930/2 = 965 ms^-2

7 0
3 years ago
The quotient of r and 12​
olchik [2.2K]
R/12 is the solution because it is how many times you can put r into 12
4 0
3 years ago
The parent function, f(x) = 5^x, has been vertically compressed by a factor of one-half, shifted to the right three units and do
KatRina [158]

Answer:

½[5^(x-3)] - 2

Step-by-step explanation:

After being compressed:

½(5^x)

3 units right

½[5^(x-3)]

2 units down

½[5^(x-3)] - 2

6 0
3 years ago
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