Answer:
8000 homes
Step-by-step explanation:
Given
See attached for result of the survey
Required
Number of homes to have 4 or more telephones in 100000
First, we calculate the proportion of homes with 4 or more telephones
So, we have:
Multiply this by 100000 to get the predicted value
Answer:
A 40, 80, 160
Step-by-step explanation:
Given:
2.5, 5, 10, 20, ...
geometric sequence has a constant ratio r and is given by
an=a1r(r)^(n-1)
where
an=nth term
r=common ratio
n=number of term
a1=first term
In given series:
a1=2.5
r= a(n+1)/an
r=5/2.5
r=2
Now computing next term a5
a5=a1(r)^(n-1)
= 2.5(2)^(4)
= 40
a6=a1(r)^(n-1)
= 2.5(2)^(5)
=80
a7=a1(r)^(n-1)
= 2.5(2)^(6)
=160
So the sequence now is 2.5, 5, 10, 20,40, 80, 160!
You find the LCM of the denominators in the fractions, then you multiply both fractions as needed till both have like denominators. Then you subtract.
For example:
5/9 - 2/4
LCM of 9 and 4 is 36
[(5 x 4)/(9 x 4)] - [(2 x 9) - (4 x 9)]
= 20/36 - 18/36
20/36 - 18/36 = 2/36
2/36 = 1/18
hope this helps ya!
Answer:
B
Step-by-step explanation:
Using the rule of exponents
⇔
Given
=
= 17²
Answer:
Your answer will be B
Step-by-step explanation:
Because you find the difference between 14 and 22 or the difference between 22 and 30 or the difference between 30 and 38. and so on then it will be 8
You then say ok 8 times x so for example 8×1 = 8 then you say ok 22 - 8= 22. So it will be 8x+14...
I hope this helped if not tell me please....❤