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Leya [2.2K]
2 years ago
6

Find the slope of the line in each figure. If the slope of the line is undefined, it indicates. Then write an equation for the g

iven line. ASAP !! NEED IT

Mathematics
1 answer:
IRINA_888 [86]2 years ago
8 0

Answer:

-3

Step-by-step explanation:

<u>Easy way</u>:

Between the two marked points, you can count that you need to go down 6 and over 2. That means the rise/run is -6/2, or -3.

<u>Full way</u>:

Starting Point: (-1,3)

Ending Point: (1,-3)

Slope is given by (y₂-y₁)/(x₂-x₁)

To calculate this, (-3-(3))/(1-(-1))

Clean up the double negatives to get (-3-3)/(1+1), AKA -6/2

-6/2 = -3.

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D. is the correct answer


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Karen rides her bike 4 mi in 20 min. How many miles will she ride in 1 h and 20 min?
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a student found the slope of a line that passes through the point (-3,-10) and (5,-7) to be 3/8 what mistake did he make
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3 0
3 years ago
Assume that when adults with smartphones are randomly​ selected, 63​% use them in meetings or classes. If 7 adult smartphone
nlexa [21]

Answer:

5.78% probability that exactly 2 of them use their smartphones in meetings or classes.

Step-by-step explanation:

For each adult, there are only two possible outcomes. Either they use their smarthphone in meetings or classes, or they do not. The probability of an adult using their smartphone on meetings or classes is independent of other adults. So we use the binomial probability distribution to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

In which C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

And p is the probability of X happening.

63% use them in meetings or classes.

This means that p = 0.63

7 adult smartphone users are randomly selected

This means that n = 7

Find the probability that exactly 2 of them use their smartphones in meetings or classes.

This is P(X = 2).

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

P(X = 2) = C_{7,2}.(0.63)^{2}.(0.37)^{5} = 0.0578

5.78% probability that exactly 2 of them use their smartphones in meetings or classes.

8 0
2 years ago
Please help.............:)
Alex787 [66]

Answer:

113

Step-by-step explanation:

Multiply

6 0
3 years ago
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