Answer: the number of shoppers on the first day is 125
Step-by-step explanation:
The number of shoppers is 20% more than the numbers of shoppers the day before. It means that the number of shoppers is increasing in geometric progression. The formula for determining the sum of n terms, Sn of a geometric sequence is expressed as
Sn = (ar^n - 1)/(r - 1)
Where
n represents the number of term in the sequence.
a represents the first term in the sequence.
r represents the common ratio.
From the information given,
r = 1 + 20/100 = 1.2
n = 4(first 4 days)
S4 = 671
Therefore, the expression for the first 4 days is
671 = (a × 1.2^(4) - 1)/1.2 - 1
671 = (a × 1.2^(4) - 1)/0.2
671 = 1.0736a/0.2
671 = 5.368a
a = 671/5.368
a = 125
Answer:
It can be a rigid or a nonrigid transformation depending on whether the corresponding side lengths have the same measures.
Step-by-step explanation:
Step-by-step explanation:
y = -( 2+2)
- to find the intercept/ zero substitute y=0
- 0 = -(x-2+2) solve the equation for x
- x = 0
B is correct since there is one output for every input !!
have a great day :))
Answer:
b = 25.03,
c = 32.67 to the nearest hundredth.
Step-by-step explanation:
To find b and c you can use the trigonometry of a right angled triangle.
tan 50 = b / 21
b = 21 tan 50
b = 25.03
cos 50 = 21 / c
c = 21 / cos 50
= 32.67
