Answer:
6
Step-by-step explanation:
The absolute value function always returns a positive value, that is
| a | = | - a | = a
Given
b(x) = | x + 4 | , then
b(- 10) = | - 10 + 4 | = | - 6 | = 6
Answer:
On second day: 500 cm^3
On third day: 250 cm^3
Step-by-step explanation:
Let x be the initial amount of helium gas in the balloon.
As it is mentioned in the question that the balloon loses half of it's gas in one day. So after one day the gas will be half of the current volume. And to calculate the volume of gas the next day, the reduced volume will be divided by two.
So,
x = 1000 cm^3
Volume on second day,
x1 = 1000/2
=> 500 cm^3
Volume of gas on third day
x2 = x1/2
=> 500/2
=> 250 cm^3
volume = l x w x h
12 x 8 x 4 = 384 cubic inches
Find a number between 2.15 and 2.17 so one of the answers could be 2.16
Answer: 0.031 .
Step-by-step explanation:
The standard error of the sample proportion is given by :-
, where p= Sample proportion and n is the sample size.
As per given , we have
In an opinion poll, 25% of a random sample of 200 people said that they were strongly opposed to having a state lottery.
i.e. p= 0.25 and n= 200
Then , the standard error of the sample proportion
Hence, the standard error of the sample proportion is approximately <u>0.031 </u>.