Answer:
the answer is equation
number 3
Step-by-step explanation:
The cost is the cost per pound times the number of pounds minus the coupon.
If
pounds are purchased, she will pay
.
If 3 pounds are purchased, she will pay 3.50(3)-3.25=7.25.
Answer:
![f_r=0.45\hspace{3}or\hspace{3}45\%](https://tex.z-dn.net/?f=f_r%3D0.45%5Chspace%7B3%7Dor%5Chspace%7B3%7D45%5C%25)
Step-by-step explanation:
The relative frequency is the result of dividing the absolute frequency of a given value by the total number of data:
![f_r=\frac{f_a}{N}](https://tex.z-dn.net/?f=f_r%3D%5Cfrac%7Bf_a%7D%7BN%7D)
Where:
![f_r=Relative\hspace{3}frequency\\f_a=Absolute\hspace{3}frequency\\N=Total\hspace{3}number\hspace{3}of\hspace{3}data](https://tex.z-dn.net/?f=f_r%3DRelative%5Chspace%7B3%7Dfrequency%5C%5Cf_a%3DAbsolute%5Chspace%7B3%7Dfrequency%5C%5CN%3DTotal%5Chspace%7B3%7Dnumber%5Chspace%7B3%7Dof%5Chspace%7B3%7Ddata)
The absolute frequency is the number of times a value appears, so in this case:
![f_a=9](https://tex.z-dn.net/?f=f_a%3D9)
if the coin is flipped 20 times then:
![N=20](https://tex.z-dn.net/?f=N%3D20)
Therefore:
![f_r=\frac{9}{20} =0.45](https://tex.z-dn.net/?f=f_r%3D%5Cfrac%7B9%7D%7B20%7D%20%3D0.45)
You can also express the result as a percentage multiplying by 100:
![\%f_r=0.45*100=45\%](https://tex.z-dn.net/?f=%5C%25f_r%3D0.45%2A100%3D45%5C%25)
Answer:
C
Step-by-step explanation:
С Step-by-step explanation: (a / b) ^ 5 = a ^ 5 / (b ^ 5) Similarly , (- 11/14) ^ 5 = (- 11) ^ 5 / (14 ^ 5)