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sammy [17]
2 years ago
14

What is the slope of (1,3) and (1,0)​

Mathematics
2 answers:
Dima020 [189]2 years ago
7 0

Answer:

-3

Step-by-step explanation:

you can tell that the awnser is negative because the coordinates of Y go down from 3 to 0.

Neko [114]2 years ago
4 0

Answer:

formula is x2-x1

y2-y1

1-1

0-3

0

-3

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The area of the shaded segment is 100cm^2. Calculate the value of r.
Reil [10]
Hello, 

The formula for finding the area of a circular region is: A=  \frac{ \alpha *r^{2} }{2}

then:
A_{1} = \frac{80*r^{2} }{2}

With the two radius it is formed an isosceles triangle, so, we must obtain its area, but first we obtain the height and the base.

cos(40)= \frac{h}{r}  \\  \\ h= r*cos(40)\\ \\ \\ sen(40)= \frac{b}{r} \\ \\ b=r*sen(40)

Now we can find its area:
A_{2}=2* \frac{b*h}{2}  \\  \\ A_{2}= [r*sen(40)][r*cos(40)]\\  \\A_{2}= r^{2}*sen(40)*cos(40)

The subtraction of the two areas is 100cm^2, then:

A_{1}-A_{2}=100cm^{2} \\ (40*r^{2})-(r^{2}*sen(40)*cos(40) )=100cm^{2} \\ 39.51r^{2}=100cm^{2} \\ r^{2}=2.53cm^{2} \\ r=1.59cm

Answer: r= 1.59cm
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3 years ago
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Car is going at speed 40mph and travelled in 2 hours, what is the distance?
dalvyx [7]
Distance = speed * time
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3 years ago
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A researcher conducts a hypothesis test using a sample of n = 40 from an unknown population. What is the df value for the t stat
aliya0001 [1]

Answer:

Correct option: b 39.

Step-by-step explanation:

A one-sample (or one mean) t-test is applied to test whether the population-parameter is significantly different from some hypothetical value.

The degrees of freedom of the <em>t</em>-test is:

df = n - 1

It is provided that the sample size is, <em>n</em> = 40.

Compute the degrees of freedom as follows:

df = n - 1

   = 40 - 1

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Thus, the correct option is b.

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A sports writer makes his pre-season picks for the top ten team finish. If there are 40 teams, how many different lists could th
ziro4ka [17]

I think the answer is 30 because difference means subtract


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2) How many eggs would be used with 10 tablespoons of water?
Lynna [10]

Answer:

C

Step-by-step explanation:

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2 years ago
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