Answer:
D. relation is a function
hope this helps :-))
15 + 6(x + 1)
Factor a 3 out of the expression.
3(5 + 2(x + 1))
Distribute the 2.
3(5 + 2x + 2)
Combine like terms.
3(7 + 2x)
3(7 + 2x) is your answer.
Answer: Rate of change of Area of the triangle = 2.75cm~/min
Step-by-step explanation:
If the present height of the triangle is 22cm and the height increases by 5cm/min. It means the height was 2cm four minutes earlier: 5cm for 1st min + 5cm for 2nd min + 5cm for 3rd min + 5cm for 4th min = 20cm after 4min.
Therefore height equals 22 - 20 = 2cm four minutes earlier.
Using the same four minutes for the base. Since the base shrinks at 1cm/min, for the base to shrink to 10cm it means it was 14cm four minutes earlier.
The Area of a triangle is given by
A = 1/2 × base × height
Therefore Area= 1/2× 10×22 = 110cm~
Since it took four minutes to get to this area, the rate of change of the area will be 110÷4 = 2.75cm~/min
The total area = 850 sq ft
The sub area of the square = 100 sq ft and the trapezoid = 750 sq ft.
Step-by-step explanation:
Given:
The diagram consist of two figure, a trapezoid ( green border)
To find:
The total area.
Formula
The area of square = side × side sq unit
The area of trapezoid = sum of the parallel sides × height
Now,
The area of square = 10 × 10 sq unit = 100 sq ft
The area of trapezoid = (10 + 20) × 25 sq unit
= 750 sq ft
So, the total area can be given as = 100 + 750 sq ft
= 850 sq ft
Answer:
disagree
Step-by-step explanation:
