9514 1404 393
Answer:
A) 504
B) 8
Step-by-step explanation:
The statement of proportionality can be written as the equation ...
m = kr²
Then we can find k from ...
k = m/r² = 14/2² = 7/2
That is, ...
m = (7/2)r²
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Using this relation, we can find m for r=12:
m = (7/2)·12² = 7·72
m = 504 . . . for r = 12
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And, we can use the same equation to solve for r when m=224.
224 = 7/2·r²
r² = 64
r = √64
r = 8 . . . for m = 224
Answer:
2(x+y+2)=49
Step-by-step explanation:
Answer:
x=29 CEF=103 BEF=58
Step-by-step explanation:
161=3x+16+2x
5x=145
x=29
Answer:
C) (-6, -17), (-3, -13), (3, -5), (9, 3)
Step-by-step explanation:
You can plot the points on a graph and see which line up. That is what has been done below.
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Otherwise realize that the first x-difference is half the remaining x-differences. so points on a line will have a first y-difference that is half the others. That situation is only true for the pairs in choice C.
- -3 -(-6) = 3 . . . . . first of the x-differences; half the other two
- 3 -(-3) = 6
- 9 -3 = 6
And for choice C, the y-differences are ...
- -13 -(-17) = 4 . . . . first of the y-differences; half the other two
- -5 -(-13) = 8
- 3 -(-5) = 8
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And for one of the bad choices (choice A), you get ...
- 13 -17 = -4
- 5 -13 = -8
- 3 -5 = -2 . . . . . not the same as the previous difference
Answer:
c. return a value
Step-by-step explanation:
Generally speaking, functions <em>return a value</em>, whereas procedures don't (so a procedure is just a function that doesn't return a value). ... By <em>returns a value, </em>we mean that the function creates some sort of results, which is passed back to the calling function.