The answer is cos70
the angles add up to 180, so 180 - 90 - 20 = 70 degrees.
In a triangle the sum of two sides is always greater than the third side.
9-9 < x < 9+9
0 < x < 18 ← answer
Answer:
∠4=135
Step-by-step explanation:
vertical angles are always equal
∠1=∠3
3x-9=x+27
3x-x=27+9
2x=36
x=36/2=18
∠1 =3x-9
∠1=3(18)-9
∠1=54-9=45
∠1+∠4=180 degrees
45+∠4=180
∠4=180-45
∠4=135
Answer:
A. 10. B. -12. C. 3.6
Step-by-step explanation:
You will do this:
a) If x=5 (what about 2x)
=2x times 5 divide by x .That makes the answer 10
b) If y=-3(what about 4y)
=4y times -3 divide by y .That makes the answer -12.
c) If z=1.2(what about 3z)
=3z times 1.2divide by z. That makes the answer 3.6.
Answer:
The hat cost £5 while the a shirt cost £6
Step-by-step explanation:
What I did was Guess and check until I finally found each of there amount.