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KengaRu [80]
3 years ago
13

What is the area of a square with side length: 3cm

Mathematics
2 answers:
storchak [24]3 years ago
6 0
12cm :) the reason why it’s 12 is because a square has 4 sides so 3 by 4 is 12
ratelena [41]3 years ago
5 0

Answer:

Since every square has the same length in sizes...

3 x 3 = 9cm

Answer: 9cm

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If working together, brothers Tom and Jack can paint a wall in 4 hours, how much time would it take Jack to paint the wall alone
kiruha [24]
T+J=4 hours
x+2x=4 hours
3x=240 minutes
X=80 minutes
3 0
3 years ago
Determine algebraically whether the function is even, odd, or neither even nor odd.
ololo11 [35]

Answer:

odd

Step-by-step explanation:

Just so you know there are shortcuts for determining if a polynomial function is even or odd. You just to make sure you use that x=x^1 and if you have a constant, write it as constant*x^0 (since x^0=1)

THEN!

If all of your exponents are odd then the function is odd

If all of your exponents are even then the function is even

Now you have -4x^3+4x^1

3 and 1 are odd it is an odd function

This a short cut not the legit algebra way

let me show you that now:

For it to be even you have f(-x)=f(x)

For it be odd you have f(-x)=-f(x)

If you don't have either of those cases you say it is neither

So let's check

plug in -x  -4(-x)^3+4(-x)=-4*-x^3+-4x=-4x^3+-4x

that's not the same so not even

with if we factor out -1 .... well if we do that we get -(4x^3+4x)=-f(x)

so it is odd.

6 0
3 years ago
Equation of perpendicular line:<br><br> Equation of parallel line:
tamaranim1 [39]

1)Parallel means they have to have the same slope. Since our equation is y=2/3x+1, a line parallel to that would be(using out points) -5=2/3(-4)+b.

To find the y-intercept, solve for "b".

b=-7/3

Our equation would then be y=2/3x-7/3

2)Perpendicular lines have opposite-reciprocal slopes. our previous equation was y=2/3x+1, so our new equation would be -5=-3/2(-4)+b. Now lets solve for b.

b=-11

So our perpendicular equation would be y=-3/2x-11

Hope that was helpful. :)

8 0
3 years ago
Change 0.384 to a percent.<br> 384%<br> 3.84%<br> 38.4%<br> 38.4
anygoal [31]
Move over 2 decimal places
This would be 38.4%
8 0
2 years ago
Find the mean of the following numbers 7 21 2 17 3 13 7 4 9 7 9
Hitman42 [59]

Answer:

9

Step-by-step explanation:

sum of the terms

mean=------------------------------

number of the terms

6 0
3 years ago
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