Write a positive or a negative number ro repersent each situation
1 answer:
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Answer:
The length of the rectangle is 15 cm.
Step-by-step explanation:
breadth(b)=?
length(l)= 3+2b
perimeter(P)= 42 cm
Now,
P = 2 ( l+b )
or, 42= 2 ( 3+2b+b)
or, 42 = 2 ( 3+3b)
or, = 3+3b
or, 21 = 3+3b
or, 21-3 =3b
or, 18 = 3b
or, = b
or, 6 = b
Here, Breadth(b)= 6 cm
Length (l) = 3 + 2*6
= 3 + 12
=15 cm
F(x) = -52x + 4
g(x) = -12x - 4
To find the solution of the system of equation, we have to just equate the equation to each other.
f(x) = g(x)
-52x + 4 = -12x - 4
-52x + 12x = - 4 - 4
-40x = -8
x =
x = 0.2
g(x) = -12x - 4
To find the solution of the system of equation, we have to just equate the equation to each other.
f(x) = g(x)
-52x + 4 = -12x - 4
-52x + 12x = - 4 - 4
-40x = -8
x =
x = 0.2