1.
(a) |
v = 26 km/h |
(b) |
P = 26 cm |
(c) |
C = 55.8 cm |
(d) |
V = 30 cm3 |
(e) |
h = 10 m |
2.
(a) |
y = 2(x − 3) |
(b) |
|
(c) |
y = 4 − 2x |
(d) |
|
(e) |
|
(f) |
|
(g) |
3.
(a) |
|
(b) |
x = -5 ± √y |
(c) |
x = 3 ± √y |
(d) |
x = 1 ± √(y − 3) |
(e) |
x = y2 + 5 |
(f) |
x = (y + 2)2 − 3 |
(g) |
4.
(a) |
|
(b) |
|
(c) |
|
(d) |
|
(e) |
|
(f) |
|
(g) |