3 years ago

14 divided by 5 turned into a mixed number

1 answer:

3 0

14 divided by 5 is 2.8 and 2.8 you can change 2.8 to 28/10 simplify that to 14/5 and turn it to a mixed number you get 2 4/8

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Is the GCF of of any two odd numbers always odd? And please an explaination or counter example

Marat540 [252]

Yes because of you find the gcf for 9 and 15, the answer would be 3 so the asnwer is still odd.

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3 years ago

Determine if b is a linear combination of a1 a2, and a3. a1 = [ 1 -2 0 ], a2 = [ 0 1 3 ], a3 = [ 6 -6 18 ], b = [ 2 -2 6 ] Choos

marysya [2.9K]

Answer: Vector b is not a linear combination

Step-by-step explanation:

First of all we put the vectors in terms of different variables, such as:

a1(1,-2,0)=(a,-2a,0);

a2(0,1,3)=(0,b,3b);

a3(6,-6,18)=(6c,-6c,18c);

To know that a vector is a linear combination we need to express it like a sum of other different vectors.

(2,-2,6)=(a,-2a,0)+(0,b,3b)+(6c,-6c,18c)

(2,-2,6)=(a+0+6c,-2a+b-6c,0+3b+18c)

We express this sum like a system of equations.

a+6c=2

-2a+b-6c=-2

3b+18c=6

We solve this system of equations and we can note that the system don't have a solution, so the vector b is not a linear combination of a1, a2, and a3.

8 0

3 years ago

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The sum of negative eighteen and a number is eleven. what is the number? which equation could be used to solve the problem? x -

Zepler [3.9K]

Sum means addition
negative 18 means -18
a number can be x
Sum of negative 18 and x should be 11
thus the equation is
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3 years ago

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Sladkaya [172]

Answer:

Step-by-step explanation:

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The solution is (7,7)

Georgia [21]

B is the answer I chose but there are the steps so you can see how to solve it

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2 years ago