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2 years ago

The graph below compares plant height to the age of the plant, in weeks.

Mathematics

2 answers:

Alexandra [31]2 years ago

7 0

Answer:

6 inches

Step-by-step explanation: Because of you put your finger on 5 on the weeks then you go up then line is really close to 6 on the inches side. how this helps!

slamgirl [31]2 years ago

6 0

Answer:

6 inches

Step-by-step explanation:

Go to x = 5. Go up to the line; we can see that the line is between 5 and 6 here, closer to 6. This means that the prediction at 5 weeks is 6 inches.

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toni bought an old bike for 50$. She fixed it up and sold it for $80. What percent of the original value was toni’s sale price

ikadub [295]

For this case what you must do is the following rule of three:
50 ---> 100
80 ----> x
We clear x:
x = (80/50) * (100)
x = 160%
160-100 = 60%
Answer:
toni added 60% of the original value for his sale price

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Read 2 more answers

SAT scores (out of 1600) are distributed normally with a mean of 1100 and a standard deviation of 200. Suppose a school council

fgiga [73]

Answer:

0.91517

Step-by-step explanation:

Given that SAT scores (out of 1600) are distributed normally with a mean of 1100 and a standard deviation of 200. Suppose a school council awards a certificate of excellence to all students who score at least 1350 on the SAT, and suppose we pick one of the recognized students at random.

Let A - the event passing in SAT with atleast 1500

B - getting award i.e getting atleast 1350

Required probability = P(B/A)

= P(X>1500)/P(X>1350)

X is N (1100, 200)

Corresponding Z score = $\frac{x-1100}{200}$

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