First you want to find 2√5+3√7, which is ≈12.40938989. Then you would square that number and you would get ≈153.9929574 rounding to the nearest number you would get ≈154.
So the answer is ≈154.
16 = 1/4x + 2.5...where x stands for diameter of large gear
16 - 2.5 = 1/4x
13.5 = 1/4x....multiply both sides by 4, eliminating the 1/4 on the right side
13.5 * 4 = x
54 = x.....the large gear is 54 cm
Answer:
The height of the triangular prism is 
Step-by-step explanation:
see the attached figure to better understand the problem
we know that
The volume of the triangular prism is equal to

where
B is the area of the triangular base
h is the height of the prism
<em>Find the area of the base B</em>

we have


substitute and solve for x


Answer:
, 
Step-by-step explanation:
In a 45-45-90 relation triangle the two shortest sides will have equal length, meaning:

To find the hypotenuse we must multiply the shortest side by
, both sides are equal so it doesn't matter which we multiply.

Answer:
5.48
Step-by-step explanation:
add 1.28 and 4.2 together to get 5.48