Answer:
Step-by-step explanation:
Sum and Difference Formula
cos( U +/- V ) = cosU*cosV -/+ sinU*sinV
cos( U - V ) = cos(70)cos(20) + sin(70)sin(20)
cos( U - V ) = cos (70 - 20)
cos( 50 ) = .642788
Answer:
35
Step-by-step explanation:
Answer:
3.1. g(x)=2x+1
for y-inter x=0
then y=2(0)+1
y=1
for x-inter y=0
then y=2x+1
0=2x+1
-1=2x
x=-1/2
3.2. f(x)= 3(x-1)'2 -12
y-inter x=0
=3(0-1)'2-12
= -9
x-inter y =0
0=3(x-1)(x-1)-12
0=3(x'2-2x+1) -12
0=3x'2 -6x +3 -12
0=3x'2 -6x -9
we devide by 3 since is a common factor
0=x'2-2x -3
0=(x - 3)(x +1)
x=3 or x = -1
Answer:
936 in
Step-by-step explanation:
1 yard is equal to 3 feet, and 1 foot is equal to 12 inches, so 1 yard is equal to 36 inches.
if we have 26 yds, we can multiply my 36 to get the total number of inches.
26 x 36 = 936