$\bf _nC_r=\cfrac{n!}{r!(n-r)!}\qquad 
\begin{cases}
n=\textit{total elements}\\
r=\textit{partials}\\
--------\\
n=7\\
r=6
\end{cases}\implies _7C_6=\cfrac{7!}{6!(7-6)!}$

5 0

3 years ago

Read 2 more answers

How do you solve x/3>-1

Goryan [66]

x/3>-1

Isolate the x. Multiply 3 to both sides

(x/3)3 > -1(3)

x > -1(3)

x > -3

x > -3 is your answer

hope this helps

7 0

3 years ago

HELLLLLLLLPPPP The value of x is

NeTakaya

Angle QRT is an exterior angle to the triangle. The rule is that the exterior angle of a triangle is equal to the sum of its remote interior angles. Those remote interior angles are angle RTS and angle TSR. So our equation is $9x=(5x)+(9+x)$ . We can remove the parenthesis and simplify by combining like terms to get 9x = 5x + 9 + x and 9x = 6x + 9 and 3x = 9. That means that x = 3.

3 0

3 years ago