To find the surface area of the rectangular prism, use the formula:
A=2(wl+hl+hw)
Note that: w = 4, l = 12, h = 3
plug into the equation
A = 2((4)(12) + (3)(12) + (3)(4))
Simplify
A = 2(48 + 36 + 12)
A = 2(96)
Multiply
A = 96 x 2
A = 192
192 m³ is the surface area of the rectangular prism.
hope this helps
Answer:
y=1/3x+2
Step-by-step explanation:
3y=x+6
Divide these all by 3
Solve it.
x * y = 14
x + y = 8
You should get back 2.5858 and 5.4142
Answer:
B. 28
Step-by-step explanation:
Since (4x + 10) and 122 degrees are angles that are across from each other (vertical angles), they equal each other.
4x + 10 = 122
-10 -10
4x = 112
/4 /4
x = 28