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-Dominant- [34]
3 years ago
7

Expand. If necessary, combine like terms (2+x)(2-x)

Mathematics
1 answer:
Anastaziya [24]3 years ago
5 0

Answer:

-x^2+4

Step-by-step explanation:

2*2=4

2(-x)+2(x)=0

x(-x)=-x^2

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I need help figuring this out asap please
Vera_Pavlovna [14]

Answer:

38.13 ft squared

Step-by-step explanation:

Since it is half of a circle we first find the area of a normal circle then divide by two.

So to find the area of  a circle it is pi times radius squared which in this case it would be 3.14 times 9 = 28.26

Then since it is a half circle we divide by two so

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Then to find the area of the triangle we do 4 times 6 which is 24.

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4 0
3 years ago
3)
strojnjashka [21]

Answer:

2500 pence (C = 2500)

Step-by-step explanation:

C = 10t + 20m

From the given information, t is the number of texts so essentially you will plug in the number of texts provided (150) in the place of the variable t.

C = 10(150) + 20m

Apply the same thing to minutes, plug in the number of minutes (50) in the place of the variable m.

C = 10(150) + 20(50)

Now multiply the substitutes with the co-efficient.

C = 1500 + 1000 (10*150=1500 & 20*50=1000)

Add the addends

C = 2500

7 0
3 years ago
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