Answer:
a is, A to c, B E to f, c is g to h I think? 2 a is no, cause it doesn't add up to 90, b is no for the same reason and c is no.
Step-by-step explanation:
i hope I helped I'm iffy on A)c
In a. hypotenuse is AC
In b. hypotenuse is EF
In c. hypotenuse is HG
2.
a. is right triangle
b. is not right triangle
c. is right triangle
in first question we have to find the hypotenuse and hypotenuse is always the side opposite to 90 degree angle
in second question we have to square each of the sides if sum of two squared side equal to the third one that triangle is right angle triangle
After removing one black marble:
3y^2 - (y + 2) (y - 2) = 0
<=> 3y^2 - (y^2 - 4) = 0
<=> 2y^2 + 4 =0
<=>y^2 + 2 = 0
=> Because y^2 is always equal or larger than 0, there is no real solution.
Hope this helps!
:)
The factor is: x(x − 9).
F=100
E=80
D=90
C. Determine the principal square root of both sides of the equation.
