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Charra [1.4K]
3 years ago
11

Please help find the greatest common factor for these two problems

Mathematics
1 answer:
vekshin13 years ago
5 0

A greatest common factor is the largest number that goes into two or more numbers (in this case two). To find the GCF of two numbers, we have to find the prime factorization (how to express a number as a product of prime numbers) and then see which numbers are common in both of the prime factorizations.

13. The prime factorization of 8 is 2 * 2 * 2. The prime factorization of 26 is 2 * 13. Looking at the prime factorizations, we can see that both of them have 2. That means that the GCF is 1 * 2 which is 2.

12. The prime factorization of 105 is 3 * 5 * 7. The prime factorization of -30 is -5 * 6. We see that the number shared 5. That means that the GCF is 5 * 1 or 5.

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r-ruslan [8.4K]
Oh come on haha, .25 , 3/8 , 0.53 , 65% , 87.5% , 4/4 in that order

5 0
3 years ago
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What is 1 2/3 x 3 1/2 as a mixed number in simplest form ?
aivan3 [116]

1 \frac{2}{3}  \times 3 \frac{1}{2}  \\   \\  =  \frac{5}{3}  \times  \frac{7}{2} =  \frac{35}{6}  \\  \\   = 5.83 =  \frac{35}{6}  = 5 \frac{5}{6}

I hope I helped you^_^

7 0
3 years ago
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Simplify 2 + 3/5x - 1 - 1/5x​
balu736 [363]

Answer:

2/5x +1

Step-by-step explanation:

if you combine like terms you can check me to see if i'm right :) have a good day!

6 0
3 years ago
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Whoever does it I will Give a special thanks to them. Just answer 4.
Stolb23 [73]
For this question you have to solve the equation backwards.
A = 1/2 x (b1 + b2) x h
In order to get rid of the 1/2 (since it's division) multiply each side by 2
now we have: 2A = (b1 + b2) x h
Now do the same to the get rid of the (b1 + b2) (divide each side by it)
2A/(b1 + b2) = h
4 0
3 years ago
I need help with this question
nikdorinn [45]
The area of each triangular face is
.. A = (1/2)*b*h
.. Aside = (1/2)*(6 cm)*(5 cm) = 15 cm^2

The area of the triangular base is
.. Abase = ((√3)/4)*s^2 = (√3)/4*(6 cm)^2 = 9√3 cm^2

The total surface area is the base area plus the area of the three sides.
.. Atotal = Abase + 3*Aside
.. = 9√3 cm^2 +3*15 cm^2
.. = (45 +9√3) cm^2
.. ≈ 60.6 cm^2


Actually, there's an error in the picture. The height of the side should be 4, and the length of the edge should be 5. Making that adjustment, the total area is 51.6 cm^2.

It is hard to tell what is intended. Not all answers are showing, so we can't "reverse-engineer" the problem from the answers.
7 0
3 years ago
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