Answer:
v = sqrt(473)
Step-by-step explanation:
v^2 = u^2 +2as
Let u = 9 a = 7 and s = 28
v^2 = 9^2 +2(7)(28)
v^2 = 81 + 392
v^2 = 473
Take the square root of each side
sqrt(v^2) = sqrt(473)
v = sqrt(473)
Answer: 51m²
Step-by-step explanation:
To solve this type of problem , you first of all consider the diagram asba complete block.The diagram is a complete block or rectangle upon which a triangle is superimposed. To find the area of the shaded region , just find the area of the whole block and removed the area of the triangle that was superimposed.
Now, let move to the real work
Area of the whole block
= length × breadth
= 7m × 9m
= 63m²
Step ii,
Area of the right angle triangle
= (1/2)bh
= 1/2 × b × h
Now to get the dimensiona of the triangle, we need to do some deductions. Since the widths of the triangle is 9m, therefore, the height of the triangle wil
= 9m - 3m
= 6m.
h = 6m.
Since the length of the triangle is 7m, therefore, the base of the triangle will be
= 7m - 3m
= 4m.
Step iii, to find the area of the triangle now , we applied the formula.
Area = 1/2 × 6 × 4
= 12m².
Now to find the area of the shaded region , we carry out subtraction
Area = 63m² - 12m²
= 51m².
Answer:
-2x+6
Step-by-step explanation:
Follow PEMDAS. First, we have to do the exponent. 4^2 is 4(4), which is 16. Add 25+16. The answer is 41.
