Find the GCF for all of these

Mathematics

1 answer:

LiRa [457]3 years ago

6 0

Answer:

Step-by-step explanation:

I'm guessing we need to find the GCF of the numbers on the numerator and the denominator.

The GCF of two numbers is the greatest common factor that fits into both numbers evenly, with no other factor bigger than it that can fit into both numbers.

1. 24/36

GCF(24, 36)=12

2. 12/18

GCF(12, 18) =6

3. 48/72

GCF (48, 72)=24

4. 30/54

GCF(30, 54)=6

5. 42/56

GCF(42, 56)=14

6. 38/57

GCF(38, 57)=19

7. 120/192

GCF(120, 192)=24

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Korvikt [17]

Answer:

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3 years ago

Triangle abc is such that ab=4 and ac=8 if m is the midpoint of bc and am=3, what is the length of bc?

zavuch27 [327]

This is an interesting question. I chose to tackle it using the Law of Cosines.
AC² = AB² + BC² - 2·AB·BC·cos(B)
AM² = AB² + MB² - 2·AB·MB·cos(B)
Subtracting twice the second equation from the first, we have
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We know that MB = BC/2. When we substitute the given information, we have
8² - 2·3² = -4² + BC² - BC²/2
124 = BC² . . . . . . . . . . . . . . . . . . add 16, multiply by 2
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