I NEED HELP PLEASE GUYS I BEG YOU IVE BEEN SPAMMING MY QUESTION LIKE CRAZY BECAUSE I RLLY NEED THIS QUESTION ANSWERED PLEASDE

(a) the volume of the cone is 20/3 in3

hence, option a is correct.

5=812a+9+3

step 1: simplify both sides of the equation.

5=812a+9+3

5=(812a)+(9+3)(combine like terms)

5=812a+12

5=812a+12

step 2: flip the equation.

812a+12=5

step 3: subtract 12 from both sides.

812a+12−12=5−12

812a=−7

step 4: divide both sides by 812.

812a /812 = -7/812

a= -1/116

so the answer is

a=   -1/116

hm let me think hm think think hm think yes

11) obtuse

13)right

15) acute