Step-by-step explanation:
Given
8(x - 1) = - 4x + 136
8x - 8 = -4x + 136
8x + 4x = 136 + 8
12x = 144
x = 144 / 12
x = 12
I say it’s E
because 330 looks accurate
<span>they are perpendicular.</span>
Answer:
The 20th day
Step-by-step explanation:
On the first day, number of people who know the secret=2
Number of people On the second day =2X2=4
Number of people On the third day =4X2=8
We can see that on each passing day, the number keeps doubling.
This is an example of a geometric progression.
Now we are to determine the number of days when the number of people who know the secret will grow past 1,000,000
For the G.P. 2,4,8,...
a=2, common ratio, r= 2
Uₙ=arⁿ⁻¹
arⁿ⁻¹>1000000
2X2ⁿ⁻¹>1000000
2ⁿ⁻¹⁺¹>1000000
2ⁿ>1000000<2²⁰=1048576
2ⁿ<2²⁰
n<20
It means on the 20th day, more than 1 million people will have been told the secret
Answer:
y=4
Step-by-step explanation:
if we draw a function we see that y=4 is paralel to the x axis