Answer: x=3
Step-by-step explanation:
16 = 7 + 3x
9 = 3x
3 = x
:0
Answer:
7.
lateral surface area of traingular prism=perimeter of traingle ×length=[5+3+4]×6=72cm²
curved surface area=2[area oftraingle]=2×1/2×4×3
=12cm²
now
total surface area=72cm²+12cm²=84cm²
8.
volume of traingular prism=area of traingle ×length
=1/2×12×3.4×4=81.6cm³
Answer:
6b - 2
Step-by-step explanation:
Product of b and 6 : b*6 = 6b
6b decreased by 2: 6b - 2
Answer:
Step-by-step explanation:
h(t)=-16t²+32t+64
=-16(t²-2t)+64
=-16(t²-2t+1-1)+64
=-16(t-1)²+16+64
=-16(t-1)²+80
maximum value=80 and is obtained at t=1