$\bf _nP_r=\cfrac{n!}{(n-r)!}\qquad \qquad \stackrel{\textit{25 books off a total of 27}}{_{27}P_{25}=\cfrac{27!}{(27-25)!}} \\\\\\ _{27}P_{25}=\cfrac{27!}{2!}\implies 5444434725209176080384000000$

you can always check your calculator also for a [ ₙPᵣ ] button.

4 0

2 years ago

A trapezoid has a base of two and six and an area of 24 square units. What is the height?

Nezavi [6.7K]

$\bf \textit{area of a trapezoid}\\\\ A=\cfrac{h(a+b)}{2}~~ \begin{cases} a,b=&\stackrel{bases}{parallel}\\ &sides\\ h=&height\\ \cline{1-2} a=&2\\ b=&6\\ A=&24 \end{cases}\implies 24=\cfrac{h(2+6)}{2}\implies 24=\cfrac{h(8)}{2} \\\\\\ 24=4h\implies \cfrac{24}{4}=h\implies 6=h$

8 0

2 years ago

Analyze the diagram below and complete the instructions that follow.

lapo4ka [179]

Answer:

I've looked at this over and over the answer it's yes.

Step-by-step explanation:

3 0

3 years ago

Look at the orange points on the graph. If the x-values a and c are 1 unit apart, how are the y-values b and d related?

ankoles [38]

Answer:

multiply 2 by b to get d

Step-by-step explanation:

4 0

2 years ago

What structural decition does a translator make when translating an original text​

What structural decition does a translator make when translating an original text