Answer:
Step-by-step explanation:
We are given the equation 
. To find y-value when or at x = 3, simply substitute x = 3 in which gives us 
then evaluate the value as we obtain the y-value or final answer to the question:
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Area of a square is side length ^2
To find the length of the side of a square from the area, that’s the square root of the area:
Length of side = sqrt(81) = 9 meters
Area of wall = length of side x height:
Area of wall = 9 x 5 = 45 square meters
Answer: 45 square meters
Answer:
h = b(√3)/2
Step-by-step explanation:
The ratio of base to height of an equilateral triangle is ...
... b/h = 2/√3
Multiplying both sides of the equation by (√3)h/2, we get
.. h = b(√3)/2 . . . . . . your equation with h as the subject
Answer:
(b) 21 (c) 36 (d) 42 (e) 45 (f) 18. (g) 28 (h) 49 (i) 40 (j) 8 (k) 9 (l) 4. (m) 7 (n) 7 (o) 9 (p) 0 (q) 0 (r) 0. 2. (a) 3 (b) 7 (c) 4 (d) 8 (e) 3 (f) 4 (g) .
