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Nikolay [14]
3 years ago
13

I will mark you BRAINLIST please help with all 3 and show work on a paper please I need this thank you !!

Mathematics
1 answer:
o-na [289]3 years ago
8 0
I hope you can understand this :)

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Help solve this picture
blagie [28]
X + y - z = 9
3x - y + z = -13
____________(+)___
4x =  -4 => x = -1 => y - z = 10;
But, x - 2y + 4z = -1 => -2y + 4z = 0 => -y + 2z = 0;

 y  -  z = 10
-y + 2z = 0
_________(+)__
/       z = 10 =>   y = 20 .

A. There is one solution. The solution is ( - 1, 20, 10 ).
6 0
3 years ago
Can i get help on these
JulsSmile [24]

Answer:

a) \frac{32}{21}

b) -14

c) -3

d) -96

Step-by-step explanation:

a) The parenthesis indicate multiplication.

b) Minus and plus gives subtraction, and the sign you put behind the number is the sign of the largest number you have (in this case it's 21 since we ignore the -)

c) They already have common denominators, all that's left is to do \frac{-7 -2}{3} = \frac{-9}{3} = -3

d) The parenthesis indicate multiplication.

Good luck!

6 0
3 years ago
Matthew and Ava have some money in the ratio of 5:2
aalyn [17]
Every $5 Matthew Has Ava has $2
3 0
3 years ago
Is this equation even or odd? Please answer asap
laila [671]

Answer:

The equation represents an even function

Step-by-step explanation:

For the function above, the value of f(x) is fixed at 3 for positive or negative values of x.

For the absolute value function below, the value of f(x) will always be positive due to the absolute symbol.

In general, a function f(x) is said to be even if;

f(-x) = f(x) such that the function is symmetrical with respect to the y-axis.

8 0
3 years ago
4. Bobbie scores m marks in a test. <br> Georgia scores three times as many marks as Bobbie.
xxTIMURxx [149]

Marks of Bobbie = x

Then, marks of Georgia

= 3 times marks of Bobbie

= 3 times m

= 3 × m

= 3m

6 0
3 years ago
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