There are 792 different ways of choosing 5 books from a shelf containing 12 books. This problem can be solved using the combination formula of mathematics. The combination formula of mathematics is a number of way of selecting thing from a collection and the formula stated as n(n-1)...(n-k+1)/k(k-1)...1 (Calculation: 12*11*10*9*8/5*4*3*2*1 = 95040/120 = 792)<span>.</span>
For the first question you just need to add up all the sides. so first add all the x numbers and then add all the plain numbers.
a perimeter is the total length around the shape.
Answer:
46°
Step-by-step explanation:
BE is the bisector so abe is the same as ebc
2x+20=4x-6
26=2x
13=x
so now plug x back into abe to find its measure
2(13)+20
26+20
46
Answer: I think its 1
Step-by-step explanation:
Answer: 31 cents
Step-by-step explanation: Since sales tax is 6%, in decimals, that is 0.06. Then you multiply the total of the bill by the tax amount to get how much she will be paying in tax.
5.20 x 0.06 = 0.312
Then you round to the nearest hundreth since you can't have a fraction of a cent to get 0.31
