Answer:
The correct answer is c) 18 centimeters
Step-by-step explanation:
Given:
A = 18 cm²
We know that the formula for calculating area of a rectangle is
A = a · b where a is length and b is width
Possible choices is 6 · 3 and 9 · 2
Formula for calculating perimeter is
P = 2 ( a + b)
P₁ = 2 (6 + 3) = 2 · 9 = 18 cm²
P₂ = 2 (9 + 2) = 2 · 11 = 22 cm²
The obvious choice is P₁ = 18 cm²
God with you!!!
Y = 2 + 3x
x + y = 26
Substitute:
x + (2 + 3x) = 26
4x + 2 = 26
4x = 24
x = 6
6 + y = 26
y = 20
72 I think it is I believe
Answer:
y=-x^2 is just y=x^2 reflected over the x-axis. In other words, the parabola is upside-down.
Step-by-step explanation: