Is (2, 6) a solution to this system of equations? y = -x + 8 y = 5x - 4 yes no

Mathematics

1 answer:

Alexxx [7]2 years ago

6 0

Answer:

Yes

Step-by-step explanation:

To see is (2, 6) is a system, we can plug it into the system to check if it gives us true statements:

6 = -2+8

6 = 6

6 = 5(2)-4

6 = 10-4

6 = 6

Both of the equations are true, therefore (2, 6) is a solution to this system.

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Please help me find x. I really don't get it.

inysia [295]

Answer:

x = 11

Step-by-step explanation:

The relationship between the sine and cosine functions can be written as ...

sin(x) = cos(90 -x)

sin(A) = cos(90 -A) = cos(B) . . . . substituting the given values

Equating arguments of the cosine function, we have ...

90 -(3x+4) = 8x -35

86 -3x = 8x -35

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121 = 11x . . . . . . . . . . . . collect terms

121/11 = x = 11 . . . . . . . . divide by 11

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<em>Comment on the solution</em>

There are other applicable relationships between sine and cosine as well. The result is that there are many solutions to this equation. One set is ...

11 +(32 8/11)k . . . for any integer k

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3 0

3 years ago

I need help with this math problem

vivado [14]

A cannot be the answer.
The maximum distance he can travel is 420 miles. He has gone 180. He still has 420 - 180 = 240 miles left to go.

C The distance is correct in the first set of brackets, but you cannot add distance divided by time (which is a speed) to distance.

D is incorrect. The first set of brackets is correct, but the second set is meaningless. Distances and rates do not mix.

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B <<<< answer.

4 0

3 years ago

I need help please and thx you

NARA [144]

Answer:

1- 3/4

2- 5/6

3- 2/3

4- 7/10

Step-by-step explanation:

1= a

2=b