Answer:
9x²
Explanation:
The given expression is:
7x² + 2x²
Since both terms have x², we can take it as a common factor as follows:
x² (7+2)
Now, we will add the number within the brackets. Thsi will give us the final answer:
9x²
Hope this helps :)
Answer:
4/5.
Step-by-step explanation:
The right triangle with this angle in it has sides 3, 4 and 5. ( 5^2 = 3^2 + 4^2).
So as sin∅ = 3/5, the opposite side to angle ∅ is 3 , the hypotenuse is 5 and the adjacent side must be 4 units long.
So cos∅ = adjacent side/hypotenuse = 4/5.
18-14 = 4 mph difference
4 *2 = 8 miles apart in 2 hours
