Answer:
y = 2x +13
Step-by-step explanation:
when 2 lines are perpendicular, the product of the two gradients is -1
i.e. m x m1 = -1
so from 10y + 5x = 3, the gradient m is -0.5
m1 = -1 / -0.5 = 2
using m1 = 2 and pt(-7,-1),
the eqn is y = (m1)x +c
-1 = 2(-7) + c
c= 13
thus y = 2x +13
4 meters, since 100 centimeters equal 1 meter you'd divide 400 by 4 to get your answer of 4 meters. It's just basic math. Don't get so scared that you'll get your answer wrong and just focus.
Answer:
1b
2b
3a
Step-by-step explanation:
my guess would be c. but id wait for someone else to answer just to be sure
Answer:
The length of the rectangle is 
Step-by-step explanation:
The perimeter of a rectangle is calculated by 
where 
represents the length and 
represents the width of the rectangle.
The perimeter of a rectangular pool is 
.
