We can use trigonometry. The cosine of 15 will be the side adjacent to the 15-degree side (the one we are looking for) divided by 20, the hypotenuse. As cos(15) is about .966, we get 19.32 as the side we are looking for.
Answer:
3/4
Step-by-step explanation:
Find the number that can be divided into both numbers.
12÷4 =3 16÷4=3
Answer:
-2
Step-by-step explanation:
since the base are the same you add the exponent.
4x+2 + 2x-1= -3x-17
4x+2x +3x =-17-2+1
9x =-18
x=-2
A = 143 m^2 because the height is 11 m and the width is 13 m if you add 9+4.
