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REY [17]
3 years ago
6

What is the solution to this system of linear equations 7x-2y=-6 8x+y=3

Mathematics
2 answers:
mestny [16]3 years ago
7 0

Answer:

(0,3)

Step-by-step explanation:

7x-2y=-6  

8x+y=3

Multiply the second equation by 2 so we can eliminate y

2(8x+2y) = 2*3

16x+2y=6

Add the first equation to the modified second equation

7x-2y=-6  

16x+2y=6

--------------------

23x = 0

Divide by 23

23x/23 = 0/23

x =0

Now we need to find y

8x+y = 3

0+y =3

y=3

(0,3)

kipiarov [429]3 years ago
3 0

Answer: B

Step-by-step explanation:

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MAVERICK [17]

Answer:

6 t + 4  p   ≤  150   is the required inequality.

Step-by-step explanation:

Here, the area required for 1 tomato plant = 6 sq ft

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3 years ago
If f(x) is a function and f(1) = 5, then which of the following could not be true?
Natasha_Volkova [10]
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Which of the following is true for the relation f(x) = x2 + 8? Only the inverse is a function. Both the equation and its inverse
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<u>ANSWER</u>

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<u>EXPLANATION</u>

f(x)=x^2+8 is graphed above with its inverse f^{-1}(x)=\pm \sqrt{x-8}.


We perform the vertical line test for both the equation and its inverse.


The equation f(x)=x^2+8 passed the vertical line hence it is a function.

However, f^{-1}(x)=\pm \sqrt{x-8} failed the vertical line test, hence it is not a function.


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