2 1/2 = x
1 = 4/5
2 = 8/5 = 1 3/5
1/2 = 2/5
1 3/5 + 2/5 = 2
Answer:
Step-by-step explanation:
hello :
Ax + 3x = bx + 5
Ax + 3x-bx = bx-bx + 5
x(A+3-b) =5
x= 5/(A+3-b)
26 goes into 50 once. so put a 1 on top of the 5. multiply the 1 by 26, which is 26. write 26 underneath the "50" in 503. 50-26 = 24. bring down the 3 so you now have 243. how many times can 26 go into 243 evenly? the answer is 9. so put a 9 on top of the 0. multiply the 9 by 26 and you get 234. so whatever 243 - 234 equals, thats your decimal
Answer:
Area of a regular decagon with a perimeter of 60 ft. = 277 squared ft
Step-by-step explanation:
Decagon has 10 sides So 60/10 = 6 (each side = 6ft )
The sum of the interior angles of a decagon is 1 440 degrees.
There are 10 equal isosceles triangles of base angles 72 degrees in a decagon
Each isosceles triangle can subdivided into 2 right-angled triangles with height h and base length = (6/2) = 3 cm and base angle 72 degrees.
Height of right-angled triangle h = 3 tan 72 ft.
Area of 1 right-angled triangle = (1/2)(3)(3 tan 72) = 13.85 squared ft
Area of decagon = 20 right-angled triangles = 277 squared ft
Answer:
-sin x
Step-by-step explanation:
sin(3π/3+x)=sin (π+x)=-sin x
or
sin (π+x)=sin πcos x+cos π sin x=(0)cos x+(-1)sin x=0-sin x=-sin x