Select the correct answer. The variable s varies directly as the square of t. When s= 4, t= 12. Nick's work finding the value of twhen s = 48 is shown:
s = kt2
12 = k : 42
12 = 16k
0.75 = k
48 = 0.752
64 = t2
8 = t
What is the first error, if any, in Nick's work?
OA. He did not make any errors.
ОВ. He used an equation that models inverse variation instead of direct variation.
OC. He substituted incorrectly when calculating the constant of variation.
OD.
He made an error when isolating t.

Its C. He substituted incorrectly when calculating the constant of variation.

Reason: He said so

In photo below

Explanation:

In photo below

I hope this helps

statement #3: proof- ang is congruent to ang ecd : angles are congruent.  

step-by-step explanation:

1: the missing angles in statement #3  

a.) acb  

reason- the reason why the answer is acb is because angle ecd and angle acb are both the same size *that's what the word congruent means this is really simple.  

2: the missing word in reason #3  

c.) vertical  

reason- the reason why the answer is vertical is because the angles in that diagram on figure 2 is slanted, which is vertical, and the e and a both lay on vertical lines. along with the other's, but e and a are the 2 main points you want to focus on. and c is kind of like your starting point, because c is for both angles, not just one.  

i hope that was and understanding.

step-by-step explanation:

tangent z: 4/3

cosine y: 4/5

cotangent y: 4/3