x = 8
Solution:
Side-splitter theorem:
<em>If a line is parallel to one side of a triangle and the line intersects the other two sides, then this line divides those two sides proportionally.</em>

Do cross multiplication, we get
⇒ 4 × 42 = 21x
Divide by 21 on both sides, we get
⇒ 4 × 2 = x
⇒ 8 = x
Switch the sides.
⇒ x = 8
The value of x is 8.
4x^3-16x^2+12-3x
Rearrange: (4x^3-16x^2)-(3x+12)
Factor out GCF : 4x^2(x-4)-3(x-4)
Answer: (4x^2-3)(x-4)
I hope this helped! :)
Cosθ = adjacent / hypotenuse

I hope I helped you^_^
This will be half of the fraction 3/7
3/7 * 1/2 = 3/14
Answer:

Step-by-step explanation:
The number of people who receive the email after t weeks can be modeled by the following equation.

In which P(0) is the initial number of poeple who received the email and r is the factor.
Karim sent a chain email to 10 of his friends.
This means that 
The number of people who got the email increases by a factor of 1.4 every week.
This means that 
So

Which expression gives the number of people who got the email after 6 weeks?
