4 years ago

Algebraic expression Seven points less than yesterday’s score

Mathematics

1 answer:

vovikov84 [41]4 years ago

5 0

X - 7 When it has a turn around word, you flip the equation around

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Did any of you army's go to the BTS concert, because I sadly didn't get to go.

kakasveta [241]

Answer:

No I didn't go

Step-by-step explanation:

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2 years ago

Combine the following fractions by addition or subtraction as directed.

Marina86 [1]

Answer: $\frac{6}{y^2-xy}-\frac{6}{x^2-xy}=\frac{6(x+y)}{xy(y-x)}$

Explanation:

Combining the fractions, we have:

$\begin{gathered} \frac{6(x^2-xy)-6(y^2-xy)}{(x^2-xy)(y^2-xy)} \\ \\ =\frac{6x^2-6xy-6y^2+6xy}{(x^2-xy)(y^2-xy)} \\ \\ =\frac{6x^2-6y^2}{x(x-y).y(y-x)} \\ \\ =\frac{6(x-y)(x+y)}{-xy(x-y)^2} \\ \\ =\frac{-6(x+y)}{xy(x-y)} \\ \\ =\frac{6(x+y)}{xy(y-x)} \end{gathered}$

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2 years ago

Determine the solution to the following system of equations: 2x+4y=-12 x+2y=-2

jolli1 [7]

Answer:

undefined/no solution

Step-by-step explanation:

you use elimination to solve. So multiply 2x+4y=-12 by 1 and x+2y=-2 by 2. then you subtract 2x+4y=-12 by 2x+4y=-4 and get 0y=-8. Anything divided by 0 is undefined/no solution because you can't divide anything by 0.

4 0

3 years ago

Read 2 more answers

I need help!!!!<br> [1 -4]<br> +[-2 6]<br> [3 5] [-2 4]

zimovet [89]

[ 1 - 4]
= 1- 4
= 1 + - 4
= - 3

+ [ - 2 6]
= - 12

[ 3 5][ - 2 4]
(3)(5)(( - 2)(4))
= 15(( - 2)(4))
= (15)( - 8 )
= - 120

4 0

3 years ago

Solve for V: V/9+-5 = 2

Vesna [10]

V=63

V-45=18

V=18+45

V= 63

6 0

4 years ago