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2 years ago

I need help please tell me how to get the answer and the answer please

Mathematics

1 answer:

MrRa [10]2 years ago

4 0

Answer:

zero

Step-by-step explanation:

because when u equate both equation ,

-2x-5= -2x+7

or, -2x+2x=7+5

or, 0=12

which is invalid so it has no solution

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Find g(1) if g(x) = 1x+5

Nikitich [7]

Answer:

g(1) = 6

Step-by-step explanation:

Substituting 1 into g(x):

g(1) = 1(1) + 5

= 1 + 5

= 6

<em>Hope this helps and be sure to have a wonderful time ahead at Brainly! :D</em>

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2 years ago

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Answer:

0.583

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Step-by-step explanation:

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3 years ago

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2 years ago

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Help please with 9 and 10 please !

Lana71 [14]

Answer:

9. The scale factor is 1.5.

10. scale factor = 0.75

the missing side is 9m

Step-by-step explanation:

9. 3/2 = 1.5

9/6 = 1.5

6/4 = 1.5

10. 12/16 = 0.75

12*0.75 = 9

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2 years ago

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A dealer sells a certain type of chair and a table for $40. He also sells the same sort of table and a desk for $83 or a chair a

vesna_86 [32]

$Chair=x$

$Table=y$

$Desk=z$

$\begin{Bmatrix}x+y&=&40\\y+z&=&83\\x+z&=&77\end{matrix}$

keep the first row as normal, then in the other ones, we can isolate Y and X

$\begin{Bmatrix}x+y&=&40\\y&=&83-z\\x&=&77-z\end{matrix}$

now we can replace at first row...

$\begin{Bmatrix}(77-z)+(83-z)&=&40\\y&=&83-z\\x&=&77-z\end{matrix}$

$\begin{Bmatrix}160-2z&=&40\\y&=&83-z\\x&=&77-z\end{matrix}$

$\begin{Bmatrix}-2z&=&40-160\\y&=&83-z\\x&=&77-z\end{matrix}$

$\begin{Bmatrix}-2z&=&-120\\y&=&83-z\\x&=&77-z\end{matrix}$

$\begin{Bmatrix}z&=&60\\y&=&83-z\\x&=&77-z\end{matrix}$

now we can replace the Z to discovery the other value

$\begin{Bmatrix}z&=&60\\y&=&83-60\\x&=&77-60\end{matrix}$

$\boxed{\boxed{\boxed{\begin{Bmatrix}Chair&=&17\\Table&=&23\\Desk&=&60\end{matrix}}}}$

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3 years ago