Answer:
41.4
Step-by-step explanation: Since this isn't a right triangle and you're given side side side (SSS), you need the Law of Cosines.
cos(c) = (a^2 + b^2 - c^2)/2ab
(100+144-64)/2*12*10
cos(c) = 180/240
multiply both sides of the equation by cos^-1 to get ride of cos:
cos^-1(cos(c)) = cos^-1(180/240)
c = 41.4
Answer:
Step-by-step explanation:
For calculating the sales tax of a product, it is required to first multiply the original cost price of the product by the sales tax percentage.
Once the sales tax has been computed add it to the original cost price in order to determine the total cost of the product.
The formula of final amount is:
Here,
A = final amount
P = original cost price
S = sales tax percentage
Answer:
2.25
Step-by-step explanation:
-9/-4= 2.25
Y = -24x + 379
y represents money left
x represents weeks
We are finding the amount of weeks for the account to have $67 left.
Substitute y = 67
67 = -24x + 379
-312 = -24x
Divide both sides by -24 to get x by itself,
x = 13
Therefore the answer is 13 weeks!
Hope this helped!
