Answer:
52.88 degrees
Step-by-step explanation:
To find the angle of elevation, we just need to use the tangent relation of the angle, as this relation is expressed as the division of the opposite side (that is, the height of the tree) by the adjacent side (that is, the length of the shadow), so we have that:
tangent(angle) = 37/28 = 1.3214
angle = arc tangent (1.3214) = 52.88 degrees
Answer:
he got 8 books free and now has 24 books total
Step-by-step explanation:
16/2=8
that would be the answer for how many books he got for free because if there is a box of 16 books and for every2 books you get one free then you would divide 16 and 2 and get 8 then
16+8=24
add the number of books he got for free with the original 16 books he already had and get 24 total books.
Answer:
-6z - 5
Step-by-step explanation:
1 - 9z + 3z - 6
1 + (-6) + (-9z) + 3z
-5 - 6z or -6z - 5
2/5 + p = 4/5 + 3/5 pSimplifyp + 2/5 = 3/5 p + 4/5Subtract 3/5p from both sidesp + 2/5 -3/5p = 3/5p + 4/5 -3/5 p2/5 p + 2/5 =4/5Subtract 2/5 from both sides2/5 p +2/5 -2/5 = 4/5 -2/52/5 p = 2/5Divide both sides by 2/52/5 p / 2/5 = 2/5 /2/5p = 1
Given - Dimensions of brick - 30cm ×10cm ×7 1/2 cm
Dimensions of wall - 30cm long 2m high and 3/4m thick
Find - Number of bricks
Solution - The volume of both brick and wall will be calculated by the formula Length*breadth*height.
Volume of one brick = 30*10*15/2
Volume of one brick = 30*10*7.5
Volume of one brick = 2250 cm³
Now calculating volume of wall. Firstly converting height and thickness into centimetres.
Height = 2 metres
Height = 200 centimetres.
Thickness = 3/4 metres
Thickness = 75 centimetres
Volume of wall = 30*75*200
Volume of wall = 4,50,000 cm³
Number of bricks required = 450000/2250
Number of bricks required = 200
Thus, 200 bricks will be required for given wall.