Standard form is ax²+bx+c
expand then simlify
-(x-4)²=-(x-4)(x-4)=-(x²-8x+16)=-x²+8x-16
now we gots
-x²+8x-16-1
-x²+8x-17 is standard form
Answer:
3
Step-by-step explanation:
Answer:
Step-by-step explanation:
a). By applying Pythagoras theorem in right triangle ABC,
AC² = AB² + BC²
20² = 16² + BC²
BC = 
= 12
Therefore, another leg of the triangular base = 12 cm
Area of the triangular base ABC = 
= 
= 96 cm²
Volume of a triangular prism = Area of the triangular base × height
960 = 96 × b
b = 10 cm
b). Area of the triangle ABC = 96 cm²
A and E are corresponding angles so A=E
Hey, so using the formula A squared + B squared = c squared, you should be able to work these out.
For example the second one would be 3 squared + 4 squared = c squared. So 9+16=25, and then we would root 25 which gives you 5!
Hope this helps!