Answer:
7.75 cm
Step-by-step explanation:
Let a circle having centre O and AB is a tangent of the circle and OB is the radius of the circle = 2 cm. And join AO such that AO = 8 cm.


Answer:
0.89 g/cm³
Step-by-step explanation:
used the formula d=M/V
M is mass which is = 80g
V is volume which is = 90cm³
d = 80/90
d = 0.89 g/cm³
Answer:
d.4
Step-by-step explanation:
28−(5)(4)−4
=28−20−4
=8−4
=4
This is a good expression. x+2. This is simple. x is the variable and 2 is the constant.