Answer:
6000 square millimeters
Step-by-step explanation:
Side length of the slanting side can be calculated using the Pythagorean theorem,
L = sqrt(30^2+40^2) = 50
sufrace area of a triangular prism
= surface area of the end sections + the surface area of the three side faces
= 2*(30*40/2) + 40*(30+40+50)
= 1200 + 4800
= 6000 mm^2
Answer:
a=6, b=-5
a=12, b=-5
Step-by-step explanation:
We have the equation
we will try to resolve for in terms of and
Then
Note that if the denominator is 0, then the division is undefined and therefore there would be no solution for x.
Then, the denominator is 0 if
.
Then, for the pairs
a=6, b=-5 and a=12, b=-5, there is no solution for x.
<span>m+4=12
</span><span>subtract 4 from both sides
m+4-4 = 12-4
m = 8
____________________________
</span>m+4=-12
subtract 4 from both sides
m+4-4 = -12-4
m = -16