Answer:
First side is: 12cm
Second side is: 36cm
Third side is: 16cm
Step-by-step explanation:
Let x represent the shorter side
Then 3x represents the second side, and
x + 4 represents the third side.
Perimeter of three sides:
P = x + 3x + (x + 4)
Perimeter is 64, so
64 = x + 3x + (x + 4)
64 = 5x + 4
60 = 5x
12 = x
First side is x: 12cm
Second side is 3x: 3(12) = 36cm
Third side is x + 4: 12 + 4 = 16cm
Answer:
=12
Step-by-step explanation:
4(34−4)−13=7
4(34−4)−13=7
Answer:
377
Step-by-step explanation:
f(x) = 3* 2^(x+2) -7
Let x=5
f(x) = 3* 2^(5+2) -7
Parentheses first
f(x) = 3* 2^(7) -7
Then exponents
f(x) = 3* 128 -7
Then multiply
f(x) = 384 -7
Then subtract
f(x) = 377
Answer:
x^-13
Step-by-step explanation:
Answer:
It is a solution
Step-by-step explanation:
To check and see if it is a solution, we can substitute it in
-16 +2(-24) = -64
-16 -48 = -64
-64=-64
Since this is true, it is a solution
