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3 years ago

What is the gcf of 12 78 and 90

1 answer:

7 0

The greatest common factor of 12, 78, and 90 is 6.

Factors are the numbers, that when multiplied with another number, equal the product.

Factors of 12: 1, 2, 3, 4, 6, and 12.
Factors of 78: 1, 2, 3, 6, 13, 26, 39, and 78.
Factors of 90: 1, 2, 3, 5, 6, 9, 10, 15, 18, 20, 45, and 90.

The Greatest Common Factor is the highest factor shared among the products. Thus proving 6 is the GCF.

I hope this helps!

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Hi i need help with 15a(ii)

Art [367]

Answer:

x = 5/2

Step-by-step explanation:

log4(x^2+5x)-log8(x^3)=1/log3(4)

log(x^2 + 5 x) / log(4) - log(x^3) / log(8) = log(3) / log(4)

log(x (x+5))/log(4) - log(x^3) / log(8) = log(3) / log(4)

(3 log(x (x+5)) - 2 log(x^3)) / log(64) = log(3) / log(4)

3 log(x (x+5)) - 2 log(x^3) = 3 log(3)

log((3 x)/(x+5))=0

x=5/2

5 0

4 years ago

Read 2 more answers

1.The volume of a cube is 3,944.312 cubic centimeters. Find the length of a side. Round your answer to the nearest 10th and writ

eduard

When finding the volume of a cube, you would multiply the length x width x height. To find the volume, you would cube the length of one of the sides. For this problem, think of it as working backward because you're starting with the volume but need to know the length of a side. To do the opposite (or inverse) of cubing, you would instead find the cube root of the volume. The cube root of 3,944.312 cubic cm would give you 15.8 cm.

The formula for the volume of a cylinder is <em>v = $\pi r^{2} h$ . </em>Take the numbers you are given in the problem and put them into the equation to get: <em>v + $\pi (3.2 x^{2} )(5)$ . </em>After calculation this equation, you will get an answer of 160.8495. Just round to the nearest tenth to get 160.8.

6 0

3 years ago

N is an integer. Prove that (2n+1)(n+3)+(2n+1)(n-2) is not a multiple of 2. thanks.

KonstantinChe [14]

Answer:

(2n + 1)(n + 3) + (2n + 1)(n - 2)

= (2n + 1)(n + 3 + n - 2)

= (2n + 1)2n + 1)

= 4n² + 4n + 1

= 2(2n² + 2n) + 1

can see 2(2n² + 2n) is a multiple of 2 but 1 isnt a multiple of 2

=> 2(2n² + 2n) + 1 is not a multiple of 2

=> (2n + 1)(n + 3) + (2n + 1)(n - 2) is not a multiple of 2

Step-by-step explanation:

3 0

2 years ago

What is the answer to this problem?

Vera_Pavlovna [14]

CDEF. And 2. Ktjwbaofnwvsifbba

4 0

3 years ago

Find the lateral area of the square pyramid 8 m 8 m 22 m

Pie

The correct answer to the question that you asked is 421.770876400 for the problem given.

7 0

3 years ago