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3 years ago

Please I don’t understand this can someone help

Mathematics

2 answers:

ANEK [815]3 years ago

7 0

Answer:

Step-by-step explanation:

The question is hard and i understand why youre confused but its C because i learned about stuff like this in 5th grade and im good at it im so sorry if im wrong but im almost positive its C hope i helped!

Wittaler [7]3 years ago

5 0

y = f(x + c) will shift f(x) left by c units

For a reflection about the x-axis, a NEGATIVE SIGN in placed in front of f.

Knowing this fact, the answer is -f(x + 4).

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2 years ago

What is the value of n in the equation 1/2 (n-4)-3=3-(2n+3)?

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Step-by-step explanation:

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2 years ago

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What is the explicit formula for the sequence? 7, 2, –3, –8, –13, . . .

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3 years ago

Use the substitution method to solve the system of equations. x+y=11 -x=-y-9

allochka39001 [22]

<h2>Answer:</h2>

Like you said, we need to use substitution to solve for y.

$x + y = 11\\-1(-x = -y - 9)\\\\x + y = 11\\x = y + 9\\\\y + 9 + y = 11\\\\2y + 9 = 11\\\\2y = 20\\\\y = 10$

Now that we've solved for y, we can plug in the number we got into one of the original equations. (You can choose either equation, but I will use the first one.)

$x + 10 = 11\\\\x = 1$

Now we have the solution of this system.

$(1, 10)$

4 0

2 years ago