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Anika [276]
3 years ago
7

A ruler is 12 inches long. What is the length of this ruler in centimeters?

Mathematics
2 answers:
LekaFEV [45]3 years ago
8 0
Answer:

24CM

Explanation:
Elza [17]3 years ago
5 0

Answer:

the length of a ruler in cm is 30.48.

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Do the three points lie on one line?
padilas [110]

Answer:

Yes. No graph paper.

Step-by-step explanation:

Let's say the 3 points are A, B, C.

If A, B and C lie on one line then m_{AB} = m_{BC} = m_{AC}

m_{AB} = \frac{y_{B}-y_{A} }{x_{B}-x_{A}} = \frac{2-6}{3-5} = \frac{-4}{-2} = 2\\m_{BC} = \frac{y_{C}-y_{B} }{x_{C}-x_{B}} = \frac{8-2}{6-3} = \frac{6}{3} = 2\\\\m_{AC} = \frac{y_{C}-y_{A} }{x_{C}-x_{A}} = \frac{8-6}{6-5} = \frac{2}{1} = 2\\\\

Hence, they lie on one line.

You don't need to use a graph paper to prove it.

4 0
2 years ago
There are 30 students in Mrs. Taylor's kindergarten class. If there are twice as many students with blond hair as with blue eyes
weqwewe [10]

Answer:

  11

Step-by-step explanation:

Let e represent the number of students with blue eyes. Then the number of students with blond hair is 2e. The total number of students is ...

  3 + e + 2e -6 = 30

We subtracted 6 because the expressions e and 2e cause the 6 students with both blond hair and blue eyes to be counted twice.

  3e = 33 . . . . add 3 and simplify

  e = 11

11 students have blue eyes.

5 0
3 years ago
Helpppp! please i'll put brainliest
Anna35 [415]

Answer: -1

Step-by-step explanation:

Subtract each fraction by each other than simplify

4 0
3 years ago
Read 2 more answers
Assume y=x²+3x+6. what is the avg rate of change of y with respect to x as x changes from -4 to -2
AURORKA [14]
The average rate of change is 3
5 0
3 years ago
Rodney has 83 goldfish in his pond. In the winter, he wants to put the goldfish into one or more smaller fish tanks inside his h
Leviafan [203]

Answer:

0

Step-by-step explanation:

no number of tanks will hold the same amount of fish. 83 is a prime number, no numbers can be equally divided into it

8 0
3 years ago
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