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PSYCHO15rus [73]
3 years ago
12

Which is not an equation of the line going through (6, 7) and (2,-1)?

Mathematics
1 answer:
atroni [7]3 years ago
3 0

Answer:

B. y-1=2(x+2)

Step-by-step explanation:

be the points  (6,7) and (2,-1)

replacing 7-1=2(6+2) → 6≠16 and -1-1=2(2+2) → -2≠8

for all equations the equalities are maintained

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A bag contains eight yellow marbles, nine green marbles, three purple marbles, and five red marbles. Two marbles are chosen from
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Answer:

The expression would give the probability that one marble is yellow and the other marble is red is,

P(Y\cdot R\ And\ R\cdot Y)=P(Y)P(R)+P(R)P(Y)

Step-by-step explanation:

A bag contains eight yellow marbles, nine green marbles, three purple marbles, and five red marbles. So in total there are 25 marbles.

Hence,

Probability of getting yellow ball = P(Y)=\dfrac{8}{25}

Probability of getting red ball = P(R)=\dfrac{5}{25}

Probability that one marble is yellow and the other marble is red is,

P(Y\cdot R\ And\ R\cdot Y)=P(Y)P(R)+P(R)P(Y)=\dfrac{8}{25}\cdot \dfrac{5}{25}+\dfrac{5}{25}\cdot \dfrac{8}{25}=0.128

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Step-by-step explanation:

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Step-by-step explanation:

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2. An Evergreen Eagle flies about 13 meters in one second. How many kilometers could it fly in 20 minutes? *
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Answer:

Evergreen Eagle can will fly 1.56 km in 20 minutes.

Step-by-step explanation:

Speed of Evergreen Eagle = \frac{\text{Distance}}{\text{Time}}

                                            = \frac{13}{1}

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With this speed Eagle can fly the distance in 20 minutes Or 120 seconds

= Speed × Time

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Since, 1000 meters = 1 Km

1 meter = \frac{1}{1000} km

Therefore, 1560 meters = \frac{1560}{1000}

                                       = 1.56 km

Therefore, Evergreen Eagle can will fly 1.56 km in 20 minutes.

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3 years ago
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