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Effectus [21]
2 years ago
9

7TH GRADE MATH!!! PLZ HELP WILL MAKE BRAINLIEST AND THANKS!

Mathematics
1 answer:
ivanzaharov [21]2 years ago
3 0

Answer: A, C, D

If you try plugging in a few different numbers into these equations, you will get only 1 result.

:)

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Multiply: (x + 3)(x-4)
Ratling [72]

Answer:

X^2-x-12

Step-by-step explanation:

FOIL

First, Outside, Inside, Last

First: X*X=X^2

Outside: x*-4=-4x

Inside: x*3=3x

Last:3*-4=-12

All together: X^2-4x+3x-12

Simplify: X^2-x-12

5 0
3 years ago
In what direction and by how many units is the graph of f(x) = −7 sin(3x + π) − 2 vertically and horizontally shifted?
aev [14]

Answer:

Option 1. Down 2, right pi over 3.

Step-by-step explanation:

In a given function f(x) = -7 sin(3x+π)-2 we have to find the shift horizontally and vertically.

As we know  in a sine equation represented as y = a sin(bx+c) +d

Amplitude of the wave = a

Period = \frac{2\pi }{b}

Horizontal shift = \frac{\pi }{b}

Vertical shift = d

From the given sine function we can get the following values

a = 7

period = \frac{2\pi }{3}

horizontal shift = \frac{\pi }{3} in the right side since it's with positive sign.

Vertical shift = -2 down with 2 ( since it's with negative sign)

Therefore Option 1 is the correct one.

8 0
2 years ago
Find two numbers whose sum is 58 and whose difference is 16 <br> Can anyone help me out
White raven [17]
X, y - the numbers

x+y=58 \\&#10;\underline{x-y=16} \\&#10;x+x+y-y=58+16 \\&#10;2x=74 \\&#10;x=37 \\ \\&#10;x+y=58 \\&#10;37+y=58 \\&#10;y=21

The two numbers are 37 and 21.
7 0
3 years ago
All numbers that can be expressed as
aev [14]
Fractions? i dont really know
7 0
3 years ago
Help pleaseeeeeee :(
Vikki [24]

Answer:

Do 16 times pi.

Step-by-step explanation:

The closest answer is D.

5 0
2 years ago
Read 2 more answers
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