Answer:
x=9
Step-by-step explanation:
see the attached figure to better understand the problem
we know that
----> by intersecting chords theorem
substitute the given values
solve for x
Answer:
20yd²
Step-by-step explanation:
6 × 6 = 36
4 × 4 = 16
36
-<u>1</u><u>6</u>
20
Answer:
Dulcina's collection has 57 pins
Eva's collection has 25 pins
Step-by-step explanation:
first we are going to represent the relation of pins by means of an equation
d = Dulcina
e = Eva
e + d = 82
and now we represent the relation of the collections of each one
d = e + 32
having the 2 equations we can replace the d by (e + 32) and place it in the other equation
e + d = 82
e + (e + 32) = 82
2e + 32 = 82
2e = 82 - 32
2e = 50
e = 25
Now we replace e with 25 in the second equation and get the value of d
d = e + 32
d = 25 + 32
d = 57
Answer:
Like a credit card
Step-by-step explanation: :)
let the first term is 
by the sum of first n term formula
substitute to sum of first 30 term
