Answer:
164 inches
Step-by-step explanation:
A=2(wl+hl+hw)
you subsitute your l width and height
2(3(10)+4(10)+4(3))
2(30+40+12)
2(82) gets you to 164 inches squared
Answer:
The answer is 9
Step-by-step explanation:
You each exponent to get 81/9. You simplify and it gives you 9.
(3m^2n) x (-6m^2n)
Answer is
-18m^4n
7(3x-2)+4(x+5)
= 7*(3x)-7*2+4x+4*5 (distributive property)
= 21x -14 +4x +20
= 25x +6
Final answer: 25x+6.
Hope this helps~
Answer:
80 square units
Step-by-step explanation:
The area formula refers to a generic triangle ABC in which side lengths 'a' and 'b' are known and angle C is between those sides.
In the given figure, we have known side lengths of 12 and 14, and the angle between them is 72°.
Putting these numbers into the formula, we find the area to be ...
A = (1/2)(12)(14)sin(72°) ≈ 79.9 ≈ 80 . . . . square units
The area of the triangle is about 80 square units.