She needs to have 4 hours a week for the next 7 weeks.
To make this true we know need 4x, x as for week (time).
We also need to have it done with 7 weeks, so we will need 7 weeks x 7 days which would be 49 days total.
Now to put it together,4(x) and place the number of weeks to get the total number of hours. Example on week 7 hour number of hours she played is (4*7)=28 hours total.
f(x) = 4x + 14 is the function.
14 is from the first week. Therefore, that's the function of the total hours she played.
I'm not sure what this is asking but I tried, I hope this helps...
18 weeks: $4.26 per class
36 weeks: $3.70 per class
You save $0.56 per class. So the answer be A) less than 1$
You start by plugging in x=-2 into f(x)
f(-2) = 3^-2
Which gives you
f(-2) = 1/3^2 since negative exponents change the number to a dividend.
Then you square the 3
f(-2) = 1/9 or .111 repeating
Answer:
Step-by-step explanation:
Given that The data to represent average test scores for a class of 16 students includes an outlier value of 78.
We can find sum of all 16 test scores = 84(16) = 1344
Outlier found = 78
If outlier is removed new sum = 1344-78 = 1266
Number of entries without outlier = 15
New average = 1266/12 =84.4
We find that average of new data increases.
Also whenever we remove outlier std deviation also would be reduced.
Answer:
She must work at least 7 hours. All possible values are 7, 8, 9, 10
Step-by-step explanation:
14 - 4 = 10
4($7)=$28
$130-$28=$102
$102÷$15=6.8
$15x7=$105
$105+$28=$133
$15x8=$120
$120+$28=$148
$15x9=$135
$135+$28=$163
$15x10=$150
$150+$28=$178
