Answer:
The total surface area is: 468 in^2 which agrees with answer a)
Step-by-step explanation:
The three lateral faces of the prism are rectangles, and the sums of their areas give:
12 * 10 + 9 * 10 + 15 * 10 = 360 in^2
The area of each triangular base (notice it is a right triangle) is given by:
9 * 12 / 2 = 54 in^2, so we add TWO of these to the three rectangular faces:
Total surface = 360 in^2 + 2 * 54 in^2 = 468 in^2
Answer:
2(x-2)≥ 24
Step-by-step explanation:
Answer:
pretty sure the answer is b if not im sorry
Step-by-step explanation:
<u><em>hope you have a good day sir/ma'am!!</em></u>
Answer:
x=4
Step-by-step explanation:
3x-5=7
Add 5 to both sides... (-5+5 = 0, 7+5=12)
3x=12
divide by 3 on both sides to get you your answer (3/3 cancels out, 12/3 =4)
x=4
