Answer:
Two or more points are collinear, if there is one line, that connects all of them.
Step-by-step explanation:
please give brainliest.
Answer:
a=3, b=3, c=-9, d=-9
Step-by-step explanation:
Expand the left side, Then combine like terms, then set the term on the left side equal to the term on the right with the same power of x (ex. set ax^3=3x^2) Then a=3. Do this for a,b,c, and d
Answer:
7. 
8. 
9. 
10. 
Step-by-step explanation:
7. Solve for x:
Separate variable and numbers into different sides of inequality:
Divide the inequality by 3:
8. Solve for x:
Eliminate the brackets:
Separate variable and numbers into different sides of inequality:
Divide the inequality by 10:
9. Solve for x:
Solve two inequalities 
and 
separately:
and
So,
10. Solve for x:
Add 1:
Divide by 3:
Hi!
Rules for solving 30-60-90 triangles are as follows:
* The hypotenuse is double the short leg.
* The short leg times √3 is the long leg
To solve then, we divide 4√21 by √3 and get 4√7. That is x, and to get y we multiply by 2. That is 8√7.
Hope this helps! :D
