Answer:
The chocolate bar contains 29.2 grams of cocoa.
Step-by-step explanation:
Given that Lucy’s chocolate bar is 54% cocoa and the weight of the chocolate bar is 54 grams.
Hence, the amount of cocoa in the chocolate bar is given by
54% of 54 grams
54% percentage means 54/100 = 0.54
Hence, the amount of cocoa in the chocolate bar is

When rounded to the nearest tenth, 29.16 should be equal to 29.2
Hence, the chocolate bar contains 29.2 grams of cocoa.
D, B, and A are collinear. Yes they are coplanar because they all lay on the same plane. And I don’t understand the last question
Answer:
39785
Step-by-step explanation:
or,40596×2÷100=811
or,40596-811=39785
Answer:

Step-by-step explanation:

Answer:

Step-by-step explanation:

Differentiate:

Substitute
into
:

Therefore, 68 is the gradient of the tangent line at x=7:

when
, 

