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storchak [24]
2 years ago
14

Find the slope of a line that passes through the given pair of points: (-3 , -1) and ( 2 , -1) .

Mathematics
1 answer:
tatyana61 [14]2 years ago
5 0

Answer:

m=0

Step-by-step explanation:

m=y2-y1/x2-x1

m=-1-(-1)/2-(-3)

m=-1+1/2+3

m=0/5

m=0

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Trees planted by a landscaping firm have a 90% one-year survival rate, If they plant 10 trees in a park, what is the following p
Mnenie [13.5K]

Answer:

Pr(all will survive in one year) = 0.35 to 2 decimal places

Pr(at least 8 will survive) = 0.39 to 2 decimal places.

Step-by-step explanation:

Probability of a tree surviving one year is 0.9. While not surviving probability is 1 - 0.9 = 0.1

This is obtained from the 90℅ surviving rate for one year planted by the landscaping firm.

Probability that if 10 trees are planted, all will survive for one year is:

0.9x0.9x0.9x0.9x0.9x0.9x0.9x0.9x0.9x0.9 = 0.9^10 = 0.349

Probability that at least 8 will survive in one year can be expressed as

8 survived x 2 not survived +(or) 9 survived x 1 not survived +(or) 10 survived

= [(0.9^8)x(0.1^2) + (0.9^9)x(0.1^1) + (0.9^10)] = 0.391

6 0
3 years ago
Please may I have help with these questions. I’m really confused <br> Thank you
valina [46]

Answer:

Step-by-step explanation:

So what you need to do is take the two points (1, -5) and (3, -1) and subtract them. You take y of the second group and subtract y of the first group.

-1 - (-5) = 4

Now you do the first numbers in each group with the second set being the number you subtract from.

3 - 1 = 2

Now you do \frac{Rise}{Run}. Rise = 4 Run = 2

\frac{4}{2} = 2

Now the second part is saying y = 3x + c with your first set of numbers being x and y.

x = 1

y = -5

-5 = 3(1) + c

-5 = 3 + c

Subtract 3 from -5

-8 = c

The final answer is:

y = 3x - 8

4 0
2 years ago
Which is greater 12/13 or 17/18
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17/18
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3 years ago
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Answer:

The answer is A, 13, -13.

Step-by-step explanation:

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7 0
3 years ago
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What are all of the real roots of the following polynomial?<br> f(x) = x4 - 15x2 + 10x + 24
Ber [7]

Answer:

x = −1 ,2 , 3 , − 4

Step-by-step explanation:

7 0
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