Answer:
x = 0.5 to the nearest 1/10.
Step-by-step explanation:
3^-x = x^3 + x
y = x^3 - 3^-x + x = 0
Using a graphing calculator to draw the graph of the above:
The graph crosses the x-axis at x = 0.4798
Answer:
1
Step-by-step explanation:
.5 x 2 = 1
Answer:
the third one ithink
Step-by-step explanation:
Answer:
In alphabetic order:
x can be found with pythagorean theorem, since triangle ADC is right in D.
y and z are 7 times respectively the sine and cosine of angle ACB.
Finally, 
can be calculated by determining the arc sine (or inverse sine) of the ratio CD over AC
