A; b; c; d = first; second; third; fourth shelfa + b + c + d = 250 cmb = 2a + 18c = a - 12d = a + 4in terms of a, plug all equations into originala + (2a + 18) + (a - 12) + (a +4) = 2505a + 10 = 2505a = 240a = 48b = 2(48) + 18b = 96 + 18b = 114 cm/1.14 m
All the triangles are similar, so you know the long side is twice the length of the short side.
x = 2·16 = 32
From the Pythagorean theorem,
z = √(8² + 16²) = √320 = 8√5
Then
y = 2z = 16√5
The appropriate choice is the 2nd choice,
x = 32, y = 16√5, z = 8√5
You can use the Pythagorean theorem, a^2+b^2=c^2, to solve this.
b= square-root of (c^2)-(a^2)
b= square-root of (9^2)-(2^2)
b= 8.77.... which in the exact form is square root of 77.
Answer:
4x+1
Step-by-step explanation:
you just add the common terms together
To make y=-9x+8 equivalent to y=8x-9 x will have do 8x-9=-9+8
Combine like terms or try get everything on one side.
which is -9x=8x-17 then
you need to divide i think
x=1 ok x=1