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Stolb23 [73]
3 years ago
15

Plz help will mark as brainliest ​

Mathematics
1 answer:
fgiga [73]3 years ago
4 0

Step-by-step explanation:

a)

(3x-4y+2z)^2\\=9x^2+16y^2+4z^2+2.3.(-4)xy+2.3.2xz+2.(-4).2yz\\=9x^2+16y^2+4z^2-24xy+12xz-16yz

b)

(4a+1)^3\\= 64a^3+3.(4a)^2.1+3.4a.1^2+1\\=64a^3+48a^2+12a+1\\

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The remaining 15 athletes did not participate in any type of flexibility program

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Complete the statement. 469.1 mg = g
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469.1 mg = .4691 g. Hope I helped. =)
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Solve #2 with an explanation please
KatRina [158]
The fence is 210 ft long.
There is a post every 3.5 ft.
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The fence starts with a post. Then there is 3.5 ft of fencing. Then there is another post. Then there is another 3.5 ft of fencing followed by a post. In total there are 61 posts.

Here's another way of thinking of why you end up with 60 posts.
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3 years ago
What is the greatest common factor of 6a , 8a^2 and 14?
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The ratio of x to y is 1/2 . If the ratio of x + 2 to y + 1 is 2/3 , then what is the value of x?​
Natali5045456 [20]

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5 0
3 years ago
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