The volume of a certain graduated cylinder that Benjamin Banneker found in a lab is 490 π cubic cm
The radius of the base is 7 cm. What is the height?

Answer is not 3.18, I've already tried that.

The height is 10cm.

Step-by-step explanation:

The volume of a cylinder with base radius and height is given by

.

The volume of the cylinder we are given is , and the radius of the base is ; therefore, we have

solving for we get:

The height of the graduated cylinder is 10cm.  

option a, c,d are correct.

step-by-step explanation:

from the given figure, it is given that z is equidistant from the sides of the triangle rst, then from triangle tzb and triangle szb, we have

tz=sz(given)

bz=zb(common)

therefore, by rhs rule,δtzb ≅δszb

by cpctc, sz≅tz

also, from δctz and δasz,

tz=sz(given)

∠tcz=∠saz(90°)

by rhs rule, δctz ≅ δasz, therefore by cpctc, ∠ctz≅∠asz

also,from δasz and δzsb,

zs=sz(common)

∠zbs=∠saz=90°

by rhs rule, δasz ≅δzsb, therefore, by cpctc, ∠asz≅∠zsb

hence, option a, c,d are correct.

i dont know sorry

step-by-step explanation: