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3 years ago

Help please asap!!!!

Mathematics

1 answer:

Amanda [17]3 years ago

8 0

Since 90 degrees is 1/4 of a circle then 1/4 of 12 is 12/4 = 3m^2

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What is the behavior of?

GarryVolchara [31]

Answer:

i thin its option 1 or 2 because by looking at the problem it kinda click after starring at it for awhile

i hope this useful in a way

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3 years ago

Read 2 more answers

What is the geometric mean of 2 and 8?

asambeis [7]

Answer:

The geometric mean of 2 and 8 comes out to equal 4.

Step-by-step explanation:

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3 years ago

Apply Crammer's Rule to find the solution to the following quations .2x + 3y = 1, 3x + y = 5

Bond [772]

Answer:

The solution to the equation system given is:

x = 2
y = -1

Step-by-step explanation:

First, we must know the equations given:

2x + 3y = 1
3x + y = 5

Following Crammer's Rule, we have the matrix form:

$\left[\begin{array}{ccc}2&3\\3&1\end{array}\right] =\left[\begin{array}{ccc}x\\y\end{array}\right] = \left[\begin{array}{ccc}1\\5\end{array}\right]$

Now we solve using the determinants:

$x=\frac{\left[\begin{array}{ccc}1&3\\5&1\end{array}\right]}{\left[\begin{array}{ccc}2&3\\3&1\end{array}\right] } =\frac{(1*1)-(5*3)}{(2*1)-(3*3)} = \frac{1-15}{2-9} =\frac{-14}{-7} = 2$

$y=\frac{\left[\begin{array}{ccc}2&1\\3&5\end{array}\right]}{\left[\begin{array}{ccc}2&3\\3&1\end{array}\right] } =\frac{(2*5)-(3*1)}{(2*1)-(3*3)}=\frac{10-3}{2-9} =\frac{7}{-7}=-1$

Now, we can find the answer which is x= 2 and y= -1, we can replace these values in the equation to confirm the results are right, with the first equation:

2x + 3y = 1
2(2) + 3(-1)= 1
4 - 3 = 1
1 = 1

And, with the second equation:

3x + y = 5
3(2) + (-1) = 5
6 - 1 = 5
5 = 5

4 0

3 years ago

Change 0.384 to a percent. 384% 3.84% 38.4% 38.4

anygoal [31]

Move over 2 decimal places
This would be 38.4%

8 0

3 years ago

The top of a soup can has an area of 12.56 cm2. What is the radius of the can?

Wittaler [7]

Try to divide the diameter by two

6 0

3 years ago