A triangle has the side lenths of 3, 4, and 5. Classify this triangle. A. Scalene right triangle
B. Isosceles acute triangle
C. Equilateral triangle
D. Scalene acute triangle
E. Isosceles obtuse triangle

the correct answer is option ( D )

Reason

it a scalene triangle because a scalene triangle has 3 different side lengths

Step-by-step explanation:

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option 1 is correct.

step-by-step explanation:

y varies inversely with x and constant of variation is 4

the equation will be:

y = k/x

where k =4 so,

y = 4/x

if we put values of x of option 1 in the above equation and find values of y

y = 4/-2 => y =-2

y = 4/-1 => y = -4

y = 4/1 => y = 4

y = 4/2 => y =2

so, all the values of x and y are correct.

if we put values of x given in other options and find value of y we cannot find whole table satisfying the equation.

hence option 1 is correct.