X + y = 6
when x = -15
-15 + y = 6
y = 6 + 15
y = 21.....solution is (-15,21)
when x = -6
-6 + y = 6
y = 6 + 6
y = 12...solution (-6,12)
when x = -1
-1 + y = 6
y = 6 + 1
y = 7...solution is (-1,7)
so ur answer is : (-15,21) , (-6,12) , (-1,7)
Answer: x=−3 or x=13
Step-by-step explanation:
Step 1: Subtract 39 from both sides.
x2−10x−39=39−39
x2−10x−39=0
Step 2: Factor left side of equation.
(x+3)(x−13)=0
Step 3: Set factors equal to 0.
x+3=0 or x−13=0
x=−3 or x=13
Answer:
B
Step-by-step explanation:
2 walls are 30 x 9 and 2 walls are 20 x 9 and there are 4 units
30 x 9 = 270, 20 x 9 = 180
4(2)(270) + 4(2)(180) = 3600, so the answer is B
Answer:
Step-by-step explanation:
Given that a person’s body surface area (BSA) (in meters squared) using the formula

We are to calculate the rate of change of BSA with respect to mass for a person of constant height h = 180 from m =70 to m =80
For this we calculate BSA for 80 kg and BSA for 70 kg first
Rate of change = 
=
i.e. rate of change per 10 kg is 0.129
No BSA does not increase more rapidly