Answer:
d. a f
Step-by-step explanation:
i hope this helps :)
Answer:
Step-by-step explanation:
The increase is $725.
$725
-------------- * 100% = 25% = "percentage increase in the amount saved"
$2900
Answer:
The probability of a bulb lasting for between 480 and 526 hours=0.74454
Step-by-step explanation:
We are given that
Standard deviation of the lifetime,
hours
Mean,
hours
We have to find the probability of a bulb lasting for between 480 and 526 hours.





Hence, the probability of a bulb lasting for between 480 and 526 hours=0.74454
<h3><u>
The value of a is equal to 5.5</u></h3>
-22 = 11 - 6a
<em><u>Add 6a to both sides.</u></em>
6a - 22 = 11
<em><u>Add 22 to both sides.</u></em>
6a = 33
<em><u>Divide both sides by 6.</u></em>
a = 5.5
Answer: 2x^2+8x+1
Step-by-step explanation:
5x+3x=8x