If 3x^2 + y^2 = 7 then evaluate the second derivative of y with respect to x when x = 1 and y = 2. Round your answer to 2 decimal places. Use the hyphen symbol, -, for negative values.

-21/8

Step-by-step explanation:

3x^2 + y^2 = 7

6x dx + 2y dy = 0

dy/dx = -3x/y

at (1,2) =  -3/2

d^2y/dx^2 = (-3y +3 x (dy/dx))/ y^2

at (1,2) = (-6 + 3(-3/2) / 4

(-6-9/2)/4

-21/8

22.83 repeating

step-by-step explanation:

137 ÷ 6 is 22.8333333 therefore we understand that 3 is repeating.

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answer: (c) m∠qpo + (2x + 16)° = 180°

step-by-step explanation:

the opposite angles of a quadrilateral are supplementary.

so, ∠o + ∠q = 180°   and   ∠p + ∠r = 180°

since ∠r = 2x + 16°, we can use substitution as follows:

∠p + ∠r = 180°

∠p + (2x + 16)° = 180°