Q1 Q1 - Calculating volumes For these questions, give your answer correct to 1 decimal place.
Work out the volume of each solid. Use the a button on your calculator.
0
8
4 cm
>
V =
3
cm
Q2
V =
cm
[2]
0
7 cm
9
[2]
5 cm
5 cm
14 cm
The pipe has length 27 cm,
internal diameter 6 cm
and thickness 0.5 cm.
25 cm
14 cm
A
Total
V =
3
cm
V =
3
cm
0
17
[2]
[2]
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step-by-step explanation:

x = -4

step-by-step explanation:

- 20 - 4(x + 3) = 4x

=> -20 - 4x - 12 = 4x

=> - 32 -4x = 4x

=> -32 = 4x + 4x

=> - 32 = 8x

=> -32/8 = x

=> -4 = x

secant-secant formula:

(whole secant) x (external part) =           (whole secant) x (external part)

(8+y-2) *8=                                           (y+4+6) *6

(y+6)*8 = (y+10) *6

distribute

8y+48 = 6y +60

subtract 6y from each side

2y +48 = 60

subtract 48 from each side

2y = 12

divide by 2

y = 6

sv =     (y+4+6)

sv   = 6+4+6

sv = 16