Answer:
<h3>
<u>7. Ans ;</u></h3>

<h3>
<u>8</u><u>.</u><u> </u><u>Ans</u><u> </u><u>;</u></h3>
<u>
</u>
Step-by-step explanation:
<h3>
<u>7. Ans ;</u></h3>

So ;

<h3><u>
8. Ans ;</u></h3>

So ;

I hope I helped you^_^
Answer:
t = -1/8.
Step-by-step explanation:
t / 5/12 = -3/10 Invert the 5/12 and multiply:
12t / 5 = -3/10
Cross multiply:
12t * 10 = 5 * -3
120t = -15
t = -15/120 = -1/8.
It has to be the second one and it’s part of that answer or maybe it’s the third one
Answer:
Step-by-step explanation:
Decrease = 100 - 49 = 51
Percentage of decrease =

= 51%
Answer:
688.7
Step-by-step explanation:
Top and Bottom
Area = 3/4 * pi * r^2
r = 6
Area = 3/4 * 3.14 * 6^2
Area = 84.78
Don't round yet.
Vertical surface
Vertical surface = 3/4 * pi * d * h
d = 12 inches (the diameter)
Vertical surface = 3/4 * 3.14 * 12 * 15
Vertical surface = 423.9
Two inner faces
They are both rectangles
Area = 2 * L * W
L = 15
w=6
Area = 2 * 15 * 6 <u> 180</u>
Total 688.68
Total = 688.7