Answer:
<em>x = 3 and y = 0</em>
Step-by-step explanation:
3y+x=3
-2y+5x=15
Isolate y in 3y + x = 3 :

Substitute
in -2y + 5x = 15 :

Simplify the equation :

Isolate x in
:
Proving x = 3
Isolate y in
:
Proving y = 0
Your solved system of equations are x being 3, and y being 0.
Answer:
a,c,e,f
Step-by-step explanation:
scientific notations can only be less than 9
Answer:
f(4)= 3
Step-by-step explanation:
f ( x ) = 2 x - 5
then f(4)= 2(4)-5
f(4)= 8-5
f(4)= 3
Answer:
Step-by-step explanation:
Hence, the surface area of a triangular pyramid is 140 square units.
The Answer is:
(5a2-3a+8)+(-4a2-1)+(15a+11)