2y-4=3y-5
-4=y-5
1=y
Answer: y=1
Answer:
63 & 197
Step-by-step explanation:
Thus second number is 3*63+8=197
This is a system of equations, meaning you find the value of one variable and substitute it into the other equation
if y=-x^2-4x+23 we can put that into the second equation for y
This gives us 2x+(-x^2-4x+23)=15
Lets simplify this and set it equal to 0 by moving the 15 over
-x^2-2x+8=0
This gets us x=-4, 2
Lets try plugging both those back into our first equation and see what value of y we get
y=-(-4^2)-4(-4)+23; y=23
y=-(2^2)-4(2)+23; y=11
So you get two sets of solutions
(-4,23) and (2,11)
Pyramid: V=Sb×h/3, where Sb is base area, and h is the height.
Prism: V=Sb×h=3×V_pyramid
Prism: V=3×118.2=354.6m³
Answer:
Step-by-step explanation:
figure out 4a(x) and 2b(x) separately by distributing, and then add them together to get your answer.
hope this helps :)
