To solve this problem you need to know the law of cosines.
Answer: 2
Step-by-step explanation:
try each value in the equation
2(0) + 1 = 3
0 + 1 = 3
1 ≠ 3
so 0 doesn’t work
2(1) + 1 = 3
2 + 1 = 3
3 = 3
this works, so the answer is 1
Answer:
4
Step-by-step explanation:
24 = 3 * 2x
1. Switch sides.
3 * 2x = 24
2. Divide both sides by 6.
3 * 2x / 6 = 24 / 6
3. Simplify.
4
See the picture to better understand the problem
F________G_______H_______I
we know that
FI=FG+GH+HI-----> solve for GH
GH=FI-FG-HI
FI=7 units
FG=2 units
HI=1 unit
substitute
GH=7-2-1-----> GH=4 units
the answer is
GH=4 units
