2 goes into 400, that is
,
However, 2 goes into 400,
200 times.
1. x^2 + x - 90
2. (x+10)(x-1)
3. x= -10 and 1
Answer:
Step-by-step explanation:
BD is opposite the 30° angle. The sine of 30° is 0.5. The sin of an angle in a right triangle is opposite/hypotenuse so BD = sin 30°x8.
Now you have two known lengths The third can be found by applying the Pythagorean theorem: BC²+BD²=CD², from which you can establish a numerical value for BC.
83-63=20
So your answer is 20
B i hope it helps if not sorry
