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blsea [12.9K]
3 years ago
13

(m+3n) ^2 please help me solve this question, I really need it

Mathematics
1 answer:
Charra [1.4K]3 years ago
7 0

Answer:

=m2+6mn+9n2

Step-by-step explanation:

=(m+3n)(m+3n)

=(m)(m)+(m)(3n)+(3n)(m)+(3n)(3n)

=m2+3mn+3mn+9n2

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( 15 points and brainliest) The volume of a tighter cylinder is 87.92 cm ^3 (that means cubed, or to the 3rd power). The radius
blsea [12.9K]
Given that:
Volume of cylinder, V= 87.92 cm³
Radius, r= 2 cm
π=3.14
Formula for volume of cylinder:
V=πr²h
Put values in the formula.
87.92=(3.14)(2)²h
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7=h
or
h=7 cm

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6 0
4 years ago
What is the value of x in the equation 0.2(x + 1) + 0.5x = –0.3(x – 4)
almond37 [142]
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x=1
That's your answer.
8 0
4 years ago
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