Using the method of u-substitution, ∫53(4x−6)4dx=∫baf(u)du where u= 4x-6 (enter a function of x) du= (2x^2-6x) dx (enter a function of x) a= 6 (enter a number) b= 14 (enter a number) f(u)= ((u)^5)/5 (enter a function of u). the value of the original integral is 132512/5 . note: you can earn full credit if the last answer box is correct and all other answer boxes are either blank or correct.

step-by-step explanation:

i think you should think about the question and not look online.

answer: bea's uncle is 25 years old.

step-by-step explanation:

given the equation , we can say that the variable "x" represents the age of bea's uncle. then to find his age, we need to solve for "x":

we must add 15 to both sides of the equation:

now we need to divide both sides of the equation by 3:

therefore, we can conclude that bea's uncle is 25 years old.

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.

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