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masya89 [10]
3 years ago
7

Wats the answer ~!!!!!!!

Mathematics
1 answer:
shtirl [24]3 years ago
6 0
The answer is c. My dude good luck
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Which expression is equal to (−4x2−1)(2x2+3)?
Leya [2.2K]

Answer:

The first one:

−8x4−14x2−3

Step-by-step explanation:

(-4•2-1)(2•2+3)

-4•2 = -8

-8 - 1 = -9

(-9)(2•2+3)

2•2 = 4

4+3 = 7

(-9)(7) = -63

Now we find the one that equals -63:

-8•4-14•2-3

(-8•4)-14•2-3

-32-14•2-3

-32-(14•2)-3

-32-28-3

(-32-28)-3

-60-3

-60-3 = -63

BAM! THE ANSWER!

7 0
3 years ago
Read 2 more answers
HELPPPPPPPPPPPPPPPPPPPPPPPPP
kenny6666 [7]

Answer:

<em>$528</em>

Step-by-step explanation:

A. Calculating The Markdown Price

X=Markdown price

Original price: $600

Markdown rate: 20%

100%-20%=80%

The TV's price is now 80% of what it originally was.

\frac{x}{600} =\frac{80}{100\\}

100x=48000

x=480

The price of the TV after being marked down is $480.

B. Calculating The Sales Tax

Y=Total sales tax

TV price: $480

Sales tax: 10% or 0.1

y=480*0.1

y=48

The total sales tax is $48

C. Calculating Your Total

x+y=total

480+48=total

total=528

You in total pay $528 for the TV.

4 0
3 years ago
What set of reflections would carry trapezoid ABCD onto itself? (1 point)
blondinia [14]

Answer:

Umm text me at (623) 300-4928 if you find the answer

3 0
3 years ago
Factor -4x^2+16x-24 completely
Lana71 [14]
-4x²+16x-24=-1(4x²-16x+24)=-4(x²-4x+6)
x²-4x+6 has no real roots. ☺☺☺☺
8 0
3 years ago
Read 2 more answers
I need some assistance
motikmotik

I think B I'm not sure but if I think it's B, if it is not, let me know.

8 0
3 years ago
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