Answer:
143ft
Step-by-step explanation:
12in is 1 foot and 13x11 (11x13) is 143
Answer:
64
Step-by-step explanation:
128 divided by 2. Because the l on the lines mean its congruent
Answer:
In mathematics, there are some properties of numbers that are handy to know. For example, the identity property of multiplication says that any number times one is equal to the original number. So, according to that property 5 x 1 = 5.
Step-by-step explanation:
Answer:

Step-by-step explanation:
A pentagon's angle all add up to 540


Answer:
x = -0.4
Step-by-step explanation:
We have the equation:
-9x + 0.4 = 4
First, the operation to move all the constants to the right side is subtraction since we would have to subtract 0.4 from each side, let's see this:

Now, we have all the constants on the right side of the equation.
Now, the operation we need to perform to isolate the variable is division (since the x has a -9 that is being multiplied by x) we need to do the opposite operation:

<h3>Thus, the answer to this equation is x= -0.4</h3>