1) To create an equation with r isolated, you divide both sides by π and square root both (it is given that all variables are positive). The equation is √A/π = r.
2) Plugging in the numbers give us <em>√54/(22/7) = r</em>.
√54(22/7) can be rewritten as √54*7/22, which is √378/22, which can be simplified to √189/11, or about 17.18.
The answer is b) cubic units / metre
Answer:
B
Step-by-step explanation:
Given
2x + 3y = 36 ← substitute y = 6
2x + 3(6) = 36
2x + 18 = 36 ( subtract 18 from both sides )
2x = 18 ( divide both sides by 2 (
x = 9 → B
Answer:
I dont have part b tho...
Step-by-step explanation:
Answer:
8 units
Step-by-step explanation:
The area of a triangle is given by
A = 1/2 bh where b is the base and h is the height
16 = 1/2 (4)*x
16 = 2x
Divide each side by 2
16/2 = 2x/2
8 =x