Answer:
-1
Step-by-step explanation:
ssdsdsdsd
Ok, first you need to change the 2,000 cm into meters and then you just multiply all the sides.
Answer:

Step-by-step explanation:
Given
The attached triangle
Required
Find x
Considering angle 30 degrees,


Using the tangent formula:

Make x the subject




Answer:
A=z
B=-2
C=0
D=30
Step-by-step explanation:
First lets simply the equation
21 - (2x +3)2 + 4(1-1) + z^3
21 - (2x^2 + 9) + 4(0) + z ^3
21 - 2x^2 + 9 + z^3
- 2x^2 + z ^3 + 30
This means that:
A=z
B=-2
C=0
D=30
87
66 -----
| 5784
-528
--------
4504
- 462
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42
87 42/66