Answer:
The supplement is 102
Step-by-step explanation:
Supplementary angles add to 180 degrees
Let x be the supplement
x+ 78 = 180
subtract 78 from each side
x+78-78 = 180-78
x = 102
Number one, is 430 divided by 18. 430/18 = 23.8888889 = rounding the number should make 23.4
<span>The formula fro the volume of a pyramid with a square base is:
Volume = L * L * H / 3
L * L * 9.6 / 3 = 147.97
L * L = (3 * 147.97) / 9.6
L * L = 46.24
Let's take the square root of both sides.
L = sqrt(46.24) = 6.8
The length of one edge of the square base is 6.8 units.</span>
Answer:
-20
Step-by-step explanation:
First, you just have to take off the negative sign:
Then, multiply:
Lastly, put the negative sign back on the 20:
That's your answer!