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marysya [2.9K]
3 years ago
10

I the radius of a circle is x cm ,what is the length of circufernece?​

Mathematics
1 answer:
nordsb [41]3 years ago
4 0

Answer:

44x/7

Step-by-step explanation:

Radius=r=xcm

Circumference=2πr

➜2πx

➜2×22/7×x

➜44/7×x

➜44x/7

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cestrela7 [59]

Answer:

See the attachment for what goes on your X diagram.

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Step-by-step explanation:

The given quadratic is ...

... x² -3x -28 . . . . . a=1, b=-3, c=-28

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b) Since the two values on the sides of the diagram add up to give "b", the value of "b" in the equation can be rewritten as the sum of these two numbers. Doing that, we have ...

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c) We can group pairs of terms in the rewritten expression and factor each pair.

... = (x² -7x) +(4x -28) . . . . . first pair has a common factor of x; second pair, 4

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... = (x +4)(x -7) . . . . . . . . . . the complete factorization of x² -3x -28

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