Answer:
(2,6)
Step-by-step explanation:
x-y=-4 -----> Get the one of the variables by themselves
x=-4+y -----> All i did was adding the y to the the other side to get x by itself
Now all you do is to substitute the in the equation into the other equation
x=-4+y --------------> 6(-4+y)-4y=-12
Then solve
Now since you have your y now all you need to do is to do the same thing
Substitute the y in for the other equation
Then there you go
Answer:
1. b
2. I'm not sure about this one
Step-by-step explanation:
A. (5,40) and B. (13,104) and C. (9,72)
Answer:
Young boy will grow to height 132 cm in 12 months.
Step-by-step explanation:
Given:
Growing rate = 3.5 cm per month
Current height = 90 cm
Let the number of months be x
Required height = 132 cm
We need to find the number of months required to grow the height till 132 cm.
Hence Number of months required can be calculate by subtracting Required height with Current height and then dividing it with growing rate.
Framing the above statement in equation form we get;
Hence Young boy will grow to height 132 cm in 12 months.
Answer:
Perimeter of rectangle ABCD = 32.8 unit (Approx.)
Step-by-step explanation:
Given:
Hypotenuse BD = 12 unit
Angle θ = 30°
Find:
Perimeter of rectangle ABCD
Computation:
Using trigonometry function
Sin θ = Perpendicular / Hypotenuse
Sin 30 = CD / BD
0.5 = CD / 12
Length of CD = 6 unit
Cos θ = Base / Hypotenuse
Sin 30 = BC / BD
0.866 = BC / 12
Length of BC = 10.4 unit
Perimeter of rectangle ABCD = 2[Length + Width]
Perimeter of rectangle ABCD = 2[6 + 10.4]
Perimeter of rectangle ABCD = 2[16.4]
Perimeter of rectangle ABCD = 32.8 unit (Approx.)
