Answer:
multiply by 25 also.
Step-by-step explanation:
If the scores are multiplied by 25, that means that the mean will also multiply by 25. Since the mean and the scores all increased by 25 times, the standard deviation will increase by 25 times.
If instead, you added 25 (or any other number) to each score, then the standard deviation would not change. The mean and each score will increase by 25, bu the difference between them will not change.
a^2 +b^2=c^2
Step-by-step explanation:
its a formula to work out the biggest length of right angled triangles.,
only works on right angled triangles :D
Answer:
1.50d=total
Step-by-step explanation:
hope it's right
Answer:
36
Step-by-step explanation:
48=√(64*x)
2304=64*x
x=36
Answer: $18.19
step by step explanation:
first you must find the amount of money that lins father gets off on the coupon by using the equation 20•0.15=3 meaning that lin’s father gets 3 dollars off
next you find the pre-tax total which in this case would be by using the equation 20-3=17 so the pre-tax total is 17 dollars
then you find the percentage of the tax that you have to add on to the pre-tax total which would be using the equation 17•0.07 and that equals 1.19 dollars in tax
finally, you add the pre-tax total with the sales tax by adding the two (17+1.19) to get a total of 18.19 dollars or $18.18
