Answer:
Step-by-step explanation:
Take the derivative of all terms with respect to x:
-2(dy/dx) + 16x = -7 + 18y(dy/dx). Grouping the (dy/dx) terms on the left, we get:
(dy/dx)(-2 - 18y) = -7 - 16x, or
-7 - 16x
dy/dx = ------------------
-2(1 + 18y)
Substituting 2 for x and -3 for y, we obtain the desired derivative:
-7 - 16x -7 - 32 -39
dy/dx = ------------------ = --------------- = ----------- = -0.368
-2(1 + 18y) -2(1 - 54) 106
<h2>Given :- </h2>
- wide of the hall (Breadth) = 10m
<h2>To Find :- </h2>
- Surface area of the walls (Four walls area)
<h2>Formula :- </h2>
Four walls area of the hall = 2h(l+b)
where,
<h2>Solution : - </h2>
By substituting values according to the formula,
➙ 2 × 4m(12m + 10m)
➙ 8m(22m)
➠ 176m²
It's option B
<h3><u>Hence, The surface area of the walls is (B) 176m²</u></h3>
<h2 /><h2 />
Answer:
0.51
Step-by-step explanation:
since there are 3 pounds, we divide 1.53 by 3 to find the unit rate for one pound.
dividing 1.53 by 3 equals 0.51.
The answer is 0.51
