To evaluate the expressions, you substitute -9 for x and 3 for y into the expressions
(4y)^2 - (2x)
= (4(3))^2 - (2(-9))
= (12)^2 - (-18)
= 144 + 18
= 162
4y^2 - 2x^2
= 4(3)^2 - 2(-9)^2
= 4(9) - 2(81)
= 36 - 162 = -126
Answer:
(y+8) (y-3)
Step-by-step explanation:
y2+5y-24
=y2+8y-3y-24
=y(y+8)-3(y+8)
=(y+8) (y-3)
Answer:
right angle ( right )
Step-by-step explanation:
Pythagoras' theorem only works for right-angled triangles, so you can use it to test whether a triangle has a right angle or not. In the triangle above, if a 2 < b 2 + c 2 the angle is acute.
Answer:
3
Step-by-step explanation:
If there is a negative sign in front of a number when trying to find absolute value, remove the negative sign. This is vice-versa if there is no negative sign. Have a Great Day and Hope this Helps :)
Answer:
cool
Step-by-step explanation:
