Hal makes an error when determining the difference quotient of f(x) = x2 + 11x + 2. His work is shown.

StartFraction ( (x + h) squared + 11 (x + h) + 2) minus (x squared + 11 x + 2) Over h EndFraction. StartFraction x squared + h squared + 11 x + 11 h + 2 minus x squared minus 11 x minus 2 Over h EndFraction. StartFraction h squared + 11 h Over h EndFraction. h + 11.

Which statement describes the error?

3

step-by-step explanation:

step-by-step explanation:

*calories burned = (weight)(calorie factor)*

calories burned = 180 (0.65)

calories burned = 117

the calories he used up is 117, which is 65% of his weight.  

answer:   the paragraph proof is mentioned below.

step-by-step explanation:

given: in a δxwy where

such that, ∠wzx ≅ ∠yzx and zw≅zy

we have to prove that: segment zx is a perpendicular bisector of segment wy.

prove: since, zw≅zy ⇒ ∠wzy is a supplementary angle.

then, ∠wzy= 180°

⇒∠wzx + ∠yzx = 180° ( because xz divides ∠wzy into two parts)

but, ∠wzx ≅ ∠yzx ( given)

⇒∠wzy+∠wzy=180° ( by substitution)

⇒2∠wzy=180°

⇒∠wzy=90°

⇒∠wzy=∠yzx =90°

therefore, xz⊥wy where wz=zy

⇒zx is a perpendicular bisector of wy.