Question

I need urgent help with this. please write out the working and the answer thank you

Answer 1

1. C = ⁵/₉F - 32
9C = 9(⁵/₉F - 32)
9C = 9(⁵/₉F) - 9(32)
9C = 5F - 288
- 5F - 5F
9C - 5F = -288
- 9C - 9C
-5F = -9C - 288
-5 -5
F = 1⁴/₅C + 57.6

2.
`H = w + (50)/(m^(2))`

`m^(2)(H) = m^(2)((50)/(m^(2)))`

`Hm^(2) = 50`

`(Hm^(2))/(H) = (50)/(H)`

`m^(2) = (50)/(H)`

`\sqrt{m^(2)} = \sqrt{(50)/(H)}`

`m = (√(50))/(√(H))`

`m = (5√(2))/(√(H))`

`m = (5√(2))/(√(H)) * (√(H))/(√(H))`

`m = (5√(2H))/(H)`

3. A = 5 + 4√x
- 5 - 5
A - 5 = 4√x
(A - 5)² = (4√x)²
A² - 10A + 25 = 16x
16 16
¹/₆A² - ⁵/₈A + 1⁹/₁₆ = x

4.
`A = (b + c)/(b)`

`Ab = b((b + c)/(b))`

`Ab = b + c`

`Ab - b = c`

`b(A) - b(1) = c`

`b(A - 1) = c`

`(b(A - 1))/(A - 1) = (c)/(A - 1)`

`b = (c)/(A - 1)`