Using the linear combination method, we can add 3x+7y=31 and -3x-2y=-1 together, which makes 5y=30.
Just divide both sides by 5, and your answer will be y = 6.
To solve for x, just substitute 6 in y in either equation and solve for x:
In short, the correct answer is B. -3 2/3
Answer: The area of the regions covered by grass is approximately 313.375 sq ft.
Step-by-step explanation:
Given: A company is building a new park in the shape of a circle with a 25 ft diameter.
Then radius =
Required area = Area of circle - Area of rectangle + Area of triangle
Formula: Area of circle =
Area of rectangle = length x width
Area of triangle = 0.5 x base x height
Area of circle =
Area of rectangle = 20 ft x 10ft = 200 ft²
Area of triangle = 0.5 x 7 x 6.5 = 22.75 ft²
Required area = 490.625 -200+22.75 = 313.375 ft²
Hence, The area of the regions covered by grass is approximately 313.375 sq ft.
Answer:
5
Step-by-step explanation:
125 ^ (1/3)
Rewrite 125 and a power
125 = 5^3
5^3 ^ (1/3)
We know that a^b^c = a^(b*c)
5^(3*1/3)
5^1
5
Answer:
x=49 or B)49
Step-by-step explanation:
its is a linear pair so that means it is equal to 180 degrees
you equation will be
x-18+149=180 simplify
x+131=180 subtract 131 from both sides
x=49