You combine like terms
Your answer will be -7x^5 - 2x^3 - 6x^2 -9
Answer:
i don't get the question
Step-by-step explanation:
Answer:
a.380
b.1225
c.21
d.28
e.360
Step-by-step explanation:
a. In this problem permutation is used because order is important. The president and vice president plays different role in a club committee. So, nPr=20P2=20!/18!=380 .
b.In this problem combination is used because order is not important. The two co-captains plays same role in a football team. So, nCr=50C2=50!/2!*48!=1225.
c.In this problem combination is used because order is not important. The hand shakes made are unique. So, nCr=7C2=7!/2!*5!=21.
d.In this problem combination is used because order is not important. The two side dishes order does not matter. So, nCr=8C2=8!/2!*6!=28.
e.In this problem permutation is used because order is important. There is no repetition of letters and every sequence of letter will be unique even with same letters such as BCDE and EDCB are different still have same letters . So, nPr=6P4=6!/2!=360.
Answer:
92.99 units squared
Step-by-step explanation:
area of a circle is
just multiply that by 74/360, the fraction of a full circle we got here
