Answer:
C. A=1/2bh
The formula for the area of a triangle is 1/2bh
Use Pythagorean theorem.
X2 = 25 +144
X2= 169
Take square root
X = 13
I got 7 if you are trying to look for the value of x than you multiply the bottom by two to have the y's equal. It should be
3x+2y=25
12x-2y=80
Since the twos mark each other out it would be
3x=25
12x=80
You add the top and bottom so it becomes one like this
15x=105
Divide 15 on both sides and it should give you 7.
X=7
By SOH CAH TOA, the sine of an angle is its opposite side divided by the hypotenuse.
The opposite of ∠C is 12, the hypotenuse is 20.
sin(C)= 12/20=3/5=0.60
Good luck!
Answer:
Step-by-step explanation:
50+30=80 products which add up to £200
200/80=which is 2.5 or £2.50