Answer:
A.y=2x+1
Step-by-step explanation:
y = x+2
This is in the form y= mx+b
where m is the slope and b is the y intercept
m=1 we are doubling it
m=2
The y intercept is 2, we are dividing by 2
2/2 =1
b=1
y = mx+b
y = 2x+1
Answer:
P(x>278) is 0.16
Step-by-step explanation:
We are given that a normal distribution has a mean of 266 and a standard deviation of 12.
Mean =
Standard deviation =
We are supposed to find P(x > 278)
So, Formula :
Z=1
Refer the z table for p value
p value = 0.8413
P(x<278) is 0.84
P(x>278)=1-P(x<278)=1-0.84=0.16
Option A is true
Hence P(x>278) is 0.16
Answer:
The formula to calculate the account value in future (compounded monthly):
A = Principal x (1 + rate/12)^(month)
=> 2500 = 1300 x (1 + (3.5/100)/12)^(month)
=> (1 + 0.00291)^(month) = 2500/1300
=> 1.00291^(month) = 1.923
=> month = log(1.923)/log(1.00291) = 225
=> It will take 225 months to have 2500 dollar in account.
Hope this helps!
:)