Answer:
No
Step-by-step explanation:
For the calculation for triangle area is wrong
<span>Hilda
wants to save 825 digital photograph in an online album.
Each folder of the said album can only save 6 photographs.
Now, let’s find out how many pages of the album will Hilda need to be able to
store the 825 photograph,
=> According to the problem, she used division to get the answer.
Solution
=> how many 6s are there in 825:
=> 825 / 6
=> 137.5
The first digit in the quotient is in hundreds place.
</span>
Answer:
z = - 24
Step-by-step explanation:
Given
- 0.4(0.5z + 4) = 3.2 ( divide both sides by the multiplier - 0.4 )
0.5z + 4 = - 8 ( subtract 4 from both sides )
0.5z = - 12 ( divide both sides by 0.5 )
z = - 24
Answer:
Z= (X1`-X2`)- (u1-u2)/
(here s1=σ1 and s2= σ2)
Step-by-step explanation:
Let X1` be the mean of the first random sample of size n1 from a normal population with a mean u1 and known standard deviation σ1.Let X2` be the mean of the second random sample of size n2 from another normal population with a mean u2 and known standard deviation σ2. Then the sampling distribution of the difference X1`-X2` is normally distributed with a mean of u1-u2 and a standard deviation of
. (here s1=σ1 and s2= σ2) In other words the variable
Z= (X1`-X2`)- (u1-u2)/
(here s1=σ1 and s2= σ2)
is exactly standard normal no matter how small sample sizes are . Hence it is used as a test statistic for testing hypotheses about the difference between two population means.
The procedure is stated below.
1) Formulate the null and alternative hypotheses.
2) Decide on significance level ∝
3) Use the test statistic Z= (X1`-X2`)- (u1-u2)/
(here s1=σ1 and s2= σ2)
4) Find the rejection region
5)Compute the value of Z from the sample data
6) Rehect H0 if Z falls in the critical region, accept H0 , otherwise.
so let's say the sale price is "P", so Nicole would want to know how much will it be P discounted by 18% of P.
Well, the sale price will just be P or 100% of P, minus 18%, the discounted price will be 100% - 18% = 82%, so the discounted price will be 82% of P.
