Answer:
Step-by-step explanation:
The detailed step by step calculation is as shown in the attached file
Answer:
x = 5 and y = 1 is the answer.
Step-by-step explanation:
(-5)(x+4y=1)
(-4)(-3x-5y=-10)
-5x + -20y = -5
12x + 20y = 40
———————
7x + 0 = 35
7x= 35
7x/7 = 35/7
x = 5
subtitution:
x= 5
x + 4y = 1
5 + 4y = 1
4y = 1 - 5
4y = 4
4y/4 = 4/4
y = 1
F(x) = 11/5 i think sorry if not :(
Answer:
<h2>S.A. = 62</h2>
Step-by-step explanation:
We have:
two rectangles 2 × 3
two rectangles 3 × 5
two rectangles 2 × 5
Calculate the areas:
A₁ = (2)(3) = 6
A₂ = (3)(5) = 15
A₃ = (2)(5) = 10
The Surface Area:
S.A. = 2A₁ + 2A₂ + 2A₃
S.A. = (2)(6) + (2)(15) + (2)(10) = 12 + 30 + 20 = 62
Answer:
x=-1
y=4
z=7
Step-by-step explanation:
3x + y - z= -6(1)
2x - y + 2z = 8(2)
4x + y - 3z = -21(3)
(1)+(2): 5x+z=2(4)
(2)+(3): 6x-z=-13(5)
(4)+(5): 11x=-11
x=-1
so z=2-5x=7
y=-6-3x+z=4
