Answer:
the slope that is perpendicular to line y=-7x-12 is 1/7
1/7 is the perpendicular slope
Step-by-step explanation:
Not sure but I think it's (3)
Answer:

or
5.32cm correct to 2 decimal places
Step-by-step explanation:
This is a right angled triangle from what I know so we have to apply pythagoras theorem.

we need to rearrange this to find a²


This can either be written as a fraction or decimal.

OR

correct to 2 decimal places
Answer:
3
Step-by-step explanation:
15g
g=1/5
15×1/5
15/1×1/5=3