Answer:
The fraction of the book Omarion read over the weekend=3/5
Step-by-step explanation:
Step 1
Determine the initial number of pages in a book that's remaining as follows;
Initial number of pages remaining=9/10 of the book
Step 2
Determine fraction of the book read over the weekend as follows;
fraction read over the weekend=fraction of the remaining read×initial number of remaining pages read
where;
fraction of the remaining read=2/3
initial number of remaining pages read=9/10
replacing;
fraction read over the weekend=(2/3)×(9/10)=3/5
The fraction of the book Omarion read over the weekend=3/5
1 sum
because of the commutative property of addition
a+b=b+a
we can furthuer expand it
a+b+c=a+c+b=b+a+c=b+c+a=c+b+a=c+a+b
same sum
you can test it with numbers
Answer:
14m
Step-by-step explanation:
The area of a circle is given by
A = pi r^2
153.86 = 3.14 r^2
Divide each side by 3.14
153.86 /3.14 = r^2
49 = r^2
Take the square root of each side
sqrt(49) = sqrt(r^2)
7 = r
We want the diameter which is twice the radius
d = 2r
d =2*7
d =14
Answer:
a. There is sufficient evidence at the 0.05 level of significance that the medicine relieves pain in more than 325 seconds.
Step-by-step explanation:
With the info provided let the parameter of interest 
who represent the mean that the medicine relieves pain, the system of hypothesis would be:
Null Hyp: 
Alternative Hyp : 
If we know the population deviation, is better apply a z test to compare the actual mean to the reference value, and the statistic is given by:
z-test: "Is used to compare group means. Is one of the most common tests and is used to determine if the mean is (higher, less or not equal) to an specified value".
If the deviation is not known we can use the t test with the following statistic:
On this case the decision was REJECT the null hypothesis. That means that we obtain a significant result with a p value lower than the signficance level
So then we can conclude this:
a. There is sufficient evidence at the 0.05 level of significance that the medicine relieves pain in more than 325 seconds.
Answer:
x= - 8/3
Step-by-step explanation:
1- Multiply the monomials
2- Combine like terms
3- Rearrange variables to the left side of the equation
4- Divide both sides of the equation by the coefficient of the variable
5- Cross out the common factor
