Answer:
no
Step-by-step explanation:
3,230
For future reference, scientific notation is used to write really big or small numbers faster. Whatever power the ten is raised to is how many zeros are before or after the point.
Cos38 = 7,8/x
X= 7,8/cos38
= 9,90
Answer:The roots are -3+√6 and -3-√6
Explanation:First, we would need to put the equation in standard form which is as follows:
ax² + bx + c = 0
This can be done as follows:
x² + 6x + 9 - 6 = 0
x² + 6x + 3 = 0
By comparison:
a = 1
b = 6
c = 3
Now, to get the roots, we will need to used the quadratic formula shown in the attached image.
By substitution, we would find that:
either x = -3 + √6
or x = -3 - √6
Hope this helps :)