Answer:
7 1/8 cups of water
Step-by-step explanation:
You can multiply 2/3 by 3 to get 2 and do the same to 4 3/4 to get 14 1/4. You then divide 2 by 2 and 14 1/4 by 2 to get 7 1/8 per cup of lemonade concentrate.
Answer:
f(-2)=-12
Step-by-step explanation:
just plug in -2 for x values
and solvee
f(-2)=-2^2+3(-2)-2
should be -12
f(-2)=-12
Given the assumption of a normal distribution with a mean of 100 and a standard deviation of 15, a score of 130 represents a z-score of 2. In different mostly older handbooks of descriptive statistics you can find a ‘from z to percentile-table’. Nowadays it’s more easy to use the computer. Using R, a free and open source statistical environment (www.r-project.org), you can use the command pnorm (130, 100, 15) and it will give 0.9772. Because yo want the proportion above that score you use 1-pnorm (130, 100, 15). Another way of writing in R and with for example 3 IQ-scores:
perc = pnorm (c (70, 100, 130), 100, 15)
(1 - perc)
gives you the above-proportion of the IQ-scores of respectively 70, 100 and 130.
The correct answer is D. The numerator and the denominator must be divided by the same number, and 16 is the highest number they can both be divided by. It would simplify down to 3/4.
Answer:
False
True
False
False
Step-by-step explanation:
1. We have to get the sum as follows :
= 
= 
= 
= 
So, this is false.
2. We have to get the sum as follows :
= 
= 
= 
= 
So, this is true.
3. We have to get the difference as follows :
= 
= 
= 
= 
So, this is false.
4. We have to get the difference as follows :
= 
= 
= 
= 
So, this is also false. (Answer)
