A board measures 34.1 cm. What is the greatest possible error allowed for the measurement?

Mathematics

1 answer:

gladu [14]3 years ago

7 0

Greatest error is half smallest measuring unit. It's measured to 0.1 cm , half that is 0.05 cm answer D.

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Please help me I don’t understand

aliina [53]

To add fractions, find the LCD - lowest common denominater, and then Combine. answer is 8/9. Decimal form = 0.888888..........
For LCD find where both bottom numbers equal the same so in this case you would have to multiply 3 times 3 to equal 9. Once you do that the 2 thats on top of the 3 will also have to be multiplied by 3 so it could make sense. Now you must Combine - it would be 6/9 +2/9. you only add the top numbers and leave the bottom number.(that is what its out of). Thus the answer is 8/9.

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4 0

3 years ago

HELP!

loris [4]

<h3>Answer: Choice C, Ro, 270 </h3>

270 degree counterclockwise rotation around the origin

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Check out the diagram below. In the diagram, I only focus on points A and A'.

We have A = (-3,4) move to A ' = (4, 3). We see the x and y coordinates swap places. Then the new second coordinate -3 becomes positive, or it has flipped sign. So the rule applied here is $(x,y) \to (y,-x)$ which describes a 90 degree clockwise rotation; which is equivalent to a 270 degree counterclockwise rotation