Answer:
7/25
Step-by-step explanation:
Let so we have
As , we'll have
To determine , construct a right triangle with an opposite side of 3 and a hypotenuse of 5. This is because since
, then
. If you recognize the Pythagorean Triple 3-4-5, you can figure out that the adjacent side is 4, and thus,
. This means that
.
Hence,
Answer:
≈ 52m^2
Step-by-step explanation:
1)the face of a semicircle: (*r^2)/2
2)the face of a rectangle: 6*5
3)the face of a triangle: (3*5)/2
1) d=6m r=3m (3.14*3^2)/2=28.26/2=14.13
2) 6*5=30
3) (3*5)/2=15/2=7,5
Full surface: 14.13+30+7.5=51.63
answer: 51.63m^2 ≈ 52m^2
Answer:
x = 3 ±
or
x = 3 + , x = 3 -
Step-by-step explanation:
given f(x) = 2(x - 3)^2 - 8, find when f(x) = 40
So, we plug in 40 for f(x) in the 1st equation and solve for x. (Aim to got x on its own)
40 = 2 (x - 3)^2 - 8
+ 8 + 8
-----------------------------
48 = 2 (x - 3)^2
/2 /2
-----------------------------
24 = (x - 3)^2
square root both sides
--------------------
= x - 3
x = 3 ±
