Let's say the number of days library book is late is X, and the total fee is Y.
Liability charges $0.30 dollars as a fee for being 1 day late,
For being 1 day late, fee charge is: 1* $0.30
So, for X days the charge would be: X*$0.30.
Total charge for being X days late is Y, Which means: Y= 0.30 * X.
Now We would have to check all the viable solutions in the answer to see if they satisfy the equation Y= 0.30 * X
Option one(-3, -0.9) and two (-2.5, -0.75) Would not be a viable solution because the value of number of days can not be negative and in option one and two, value of days -3 and -2.5 is negative.
Option three(4.5, 1.35) can not be correct because library charges fee for a full day so the number for days would be a whole number. Library would not charge for 4.5 days, they would either charge of 4 days or 5 days because 4.5 is not an whole number.
Option four(8, 2.40) is the correct answer because it satisfies our equation;
Y= 0.30 * X
2.40= 0.30 * 8
2.40 = 2.40.
Fourth option (8, 2.40) is the only viable solution to this question.
Answer:
see below ( i am not sure about the answers)
Step-by-step explanation:
positive
negative
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If you need explanation I can explain
Answer:
![s(u(2)) = 135](https://tex.z-dn.net/?f=s%28u%282%29%29%20%3D%20135)
Step-by-step explanation:
![u(t) = 7t - 2 \\ u(2) = 7(2) - 2 \\ u(2) = 14 - 2 \\ u(2) = 12 \\ \\ s(t) = {t}^{2} - 9 \\ s(u(2)) = {(12)}^{2} - 9 \\ s(u(2)) = 144 - 9 \\ \\ s(u(2)) = 135](https://tex.z-dn.net/?f=u%28t%29%20%3D%207t%20-%202%20%5C%5C%20u%282%29%20%3D%207%282%29%20-%202%20%5C%5C%20u%282%29%20%3D%2014%20-%202%20%5C%5C%20u%282%29%20%3D%2012%20%5C%5C%20%20%5C%5C%20s%28t%29%20%3D%20%20%7Bt%7D%5E%7B2%7D%20-%209%20%5C%5C%20%20s%28u%282%29%29%20%3D%20%20%7B%2812%29%7D%5E%7B2%7D%20%20-%209%20%5C%5C%20s%28u%282%29%29%20%3D%20144%20-%209%20%5C%5C%20%20%5C%5C%20s%28u%282%29%29%20%3D%20135)
I hope I helped you^_^
The answer is 90 degrees. Angle x and angle y form vertical angles, therefore x = y. Angle y forms a straight line with the 40° angle and the 50° angle which means that 50° + 40° + y = 180°. 90° + y = 180°. y = 180° - 90°. y = 90°. As mentioned earlier: x = y, so x = y = 90°.