Question

Help with 4.), 5.), 8.), 10.), 12.) ? It due at 8:00, it’s 5:12 rn

Answer 1

see explanation

Explanation:

(4)

6 = hj + k ( subtract k from both sides )

6 - k = hj ( isolate j by dividing both sides by h )

`(6-k)/(h)` = j

(5)

`(v)/(w)` = 9 ( multiply both sides by w to clear the fraction )

9w = v ( divide both sides by 9 )

w =
`(v)/(9)`

(8)

A =
`(1)/(2)` bh ( multiply both sides by 2 to clear the fraction )

2A = bh ( divide both sides by h )

`(2A)/(h)` = b

(10)

V =
`(1)/(3)` πr²h ( multiply both sides by 3 to clear the fraction )

3V = πr²h ( isolate h by dividing both sides by πr² )

`(3V)/(\pi r^2)` = h

(12)

V = πr²h ( isolate r² by dividing both sides by πh )

`(V)/(\pi h)` = r² ( take square root of both sides )

`\sqrt{(V)/(\pi h) }` = r