Answer:
14 inches
Step-by-step explanation:
In the above question, the perimeter formula is given as:
P = 2L + 2W
We are asked to rewrite the formula to solve for L.
This means to make L the subject of the formula
P = 2L + 2W
2L = P - 2W
Divide both sides by 2
L = P - 2W/2
We are to use the above formula to find the length of a rectangle whose width is 7 inches and perimeter is 42 inches.
P = Perimeter
L = Length
W = Width
L = P - 2W/2
L = 42 - 2(7)/2
L = 42 - 14/2
L = 28/2
L = 14 inches
Therefore, the length of the rectangle = 14 inches
Answer:
2
Step-by-step explanation:
Factorization of the following.
6=3×2×1
8=2×2×8×1
Since, The common factor is 2.This implies that
H.C.F=2
Step-by-step explanation:
RS = 8 × cos(61°) = 2.9 [1 dp] = 3cm
Answer:
L = 19 yd
W = 15 yd
Step-by-step explanation:
2L + 2W = 68
L = W + 4
Substitute for L in the first equation
2(W + 4) + 2W = 68
2W + 8 + 2W = 68
4W = 60
W = 15 yd
Plug W in the second equation to find L
L = W + 4
L = 15 + 4
L = 19 yd
Plug both answers in both equations to check
First equation = 2 (19) + 2 (15) = 68
Second equation = 19 = 15 + 4
Hope that helps!
It's the third answer. This is because since there is no middle term where both variables are combined, that would lead to the signs of the 2 factors to be different. However, that still leaves 2 answers, 3 and 2. If we were to square i, you would get -1. This is because √-1 is equal to i. i^2 would be -1. Since the sign in the unfactored expression is positive and not negative, that would mean that the i in the factoring turned it around. that leads us to believe that answer 3 is the correct answer.