Answer:
y=x-9
Step-by-step explanation:
20 is the answer because it is the only number that has positive and it says sum
230cm^2
Seperate the triangle, 9x 20 the divide by 2, 90.
Then the rectangle is 7x20 so 140, and add them together to get 230
Answer:
Option C. −4≤t≤−3
Step-by-step explanation:
we have

This is the equation of a vertical parabola written in vertex form
The parabola open upward (the leading coefficient is positive)
The vertex is a minimum
The vertex is the point (-3,5)
The function is increasing in the interval [-3,∞)
The function is decreasing in the interval (-∞,-3]
The function will have a negative average rate when the function will be decreasing
therefore
the answer is option C
In the complex plane, the two given points are represented by

and

. The midpoint would then be

which represents the complex number

.