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Ne4ueva [31]
3 years ago
9

Which expression is equivalent to the following expression? -4(3x + 4)

Mathematics
2 answers:
cricket20 [7]3 years ago
7 0

Answer:

7x

Step-by-step explanation:

Taya2010 [7]3 years ago
3 0

Answer:

-12x - 16

Step-by-step explanation:

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Estimate.<br><br> 2.8 x 9.1
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25.50 depending on what you rounding to

Step-by-step explanation:

.

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2 years ago
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(cos2A−cos2B)2+(sin2A+sin2B)2=4sin2(A+B)​
lbvjy [14]

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{( \cos2A -  \cos2B)  }^{2}  +  {( \sin2A +  \sin2 B  }^{2}\\    =  ( - 2\cos2A \cos2B  +  { \cos {}^{2} 2A } +  \cos {}^{2} 2B) + (2 \sin2A \sin2B +  \sin {}^{2} 2A +  \sin {}^{2} 2B)\\  \\  { =  - 2(  \sin2A +  \sin 2 B -  \cos2 A -  \cos2B) }\\  \\ { = -  2( - 4 \sin( A + B) \cos(A + B) } \\  \\  =    {\tt{double \: angle \: of \: sine}}\\  \\ { = 2 \times 2(2 \sin (A + B) \cos(A + B)) }\\  \\  { = 4 \sin2(A + B)}

8 0
2 years ago
Please help answer this question
posledela

Answer:

8

Step-by-step explanation:

\frac{3}{4}x=6

Find: x

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

\frac{3}{4}x=6

Also equals to:

\frac{3}{4} * x=6

In that case, we can divide by \frac{3}{4} on both sides.

\frac{3}{4} * x=6

÷\frac{3}{4}       ÷\frac{3}{4}

x=6÷\frac{3}{4}

x= 8

5 0
3 years ago
How do you put y=x+5 in a linear function?
aksik [14]
I believe what you are wanting is f(x)= x+5.
3 0
3 years ago
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8. Find the area and the perimeter of
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the answer is DBC=90°

because the midpoint of the perimeter of quadrilateral is B

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