Answer:
Step-by-step explanation:
1) rewrite 60 as it's prime factors.
2) group the smae prime factors into pairs.
3) Rewrite each pair in exponent form.
4) use this role:
5) Simplify.
So, therefor, the answer is option 1.
Answer:
So roughly c x c = b/100
5 x 5 x 100 = $2500
Step-by-step explanation:
Lets say c = 5 and b = 1
= 5c =100c/5c x b
= 20c x b
We can also show
= 20c x b =5c
c = 20c/5c x b = 5c
1/20 x 5c = 5c
b=1
One example is 20% = 0.20 x 500 = 100c
= 7.12c = 7c
1= 100%
100 x 71.042 = 710.42 weekly pay. emergency tax 142 = 568
100 x 71.042 = 710.42 weekly pay, normal tax 15% 142.084 =107
710-107 = 603 a week
4.3/7 x 603/7 = 86.1428571429 x 30 = 2584.29
Answer:
137
Step-by-step explanation:
2(-9)^2+5(-9)+20
2(81)-45+20
162-45+20
117+20
137
Answer:
an=1*2.5^(n-1)
=2.5^(n-1)
Step-by-step explanation:
Complete question below:
What value, written as a decimal, should Lena use as the common ratio? Lena is asked to write an explicit formula for the graphed geometric sequence. On a coordinate plane, 3 points are plotted. The points are (1, 1), (2, 2.5), (3, 6.25).
Solution
Point (1, 1), (2, 2.5), (3, 6.25).
a=1
ar=2.5
ar^2=6.25
From ar and ar^2
r=6.25/2.5
=2.5
r=2.5
an=ar^(n-1)
Therefore, the explicit formula is
an=1*2.5^(n-1)
=2.5^(n-1)