Answer:
Height of tree= 13.8m
Step-by-step explanation:
When finding the value of a in your working, I suggest to leave the answer to 5 significant figures so that your final answer is more accurate. The value of a should be 26.048m to 5 s.f.
Then multiplying 26.048 with sin 32° would give you 13.8m too when rounded off to 3 significant figures :)
I have attached my working too.
Answer:
d) 2x²(6x³ + 3x + 4)
Step-by-step explanation:
In order to factor the given polynomial, you need to find the greatest common factor of all three terms: 
The greatest common factor is '2' and the variable is x². If we factor out 2x² from each term, we get:
2x²(6x³ + 3x + 4)
Easy!!!!! its zero!!!!! LOL
Answer: y= (-1/5)x -4
First move the x over t the other side of the equation. Now we have 5y=-x-20. Next divide everything by 5 to get y= (-1/5)x -4