Answer:
111.6ft^2 for the two stacks
Step-by-step explanation:
0.75inch × 11 = 8.25 inches
8.25 inches = 0.69ft
Here dimensions are 3 ft. Wide, and 7 ft. Long and height of stack = 0.69ft
Surface area of one stack =
2*(LW+WH+LH)
= 2*(7*3 +3*0.69+7*0.69)
= 55.8 ft^2
Multiply by 2 to to get surface area of 2 stacks separately
55.8 × 2 = 111.6ft^2
Answer:
18) Area= 5*5/2=25/2=12.5 unit ^2
19) Area=AB^2V3/4=8a^2*V3/4=2V3a^2
Step-by-step explanation:
18. A(-3,0)
B(1,-3)
C(4,1)
AB=V(-3-1)^2+(0+3)^2=V16+9=V25=5
AC=V(-3-4)^2+(0-1)^2=V49+1=V50=5V2
BC=V(1-4)^2+(-3-1)^2=V9+16=V25=5
so AB=BC=5
and AC^2=AB^2+BC^2
so trg ABC is an isosceles right angle triangle (<B=90)
Area= 5*5/2=25/2=12.5 unit ^2
19. A(a,a)
B(-a,-a)
C(-V3a, V3a)
AB=V(a+a)^2+(a+a)^2=V4a^2+4a^2=V8a^2
AC=V(a+V3a)^2+(a-V3)^2=Va^2+2a^2V3+3a^2+a^2-2a^2V3+3a^2=V8a^2
BC=V(-a+V3a)^2+(-a-V3a)^2=V8a^2
so AB=AC=BC
Area=AB^2V3/4=8a^2*V3/4=2V3a^2
Answer:
y = -4x + 28
Step-by-step explanation:
yeah-ya........ right?
(angle of section / 360) x (pi x diameter)
Answer:
$122
Step-by-step explanation:
amount she had + amount she earns = amount she has now
55 + 67 =
122
