Answer:
x = -1
Step-by-step explanation:
AB + BC = AC = 28
the way from A to C goes through B.
so, the total way of A to C is the sum of the way from A to B and then from B to C.
=>
(5x + 10) + (2x + 25) = 28
7x + 35 = 28
7x = -7
x = -1
Answer:
Step-by-step explanation:
I dont even know
9514 1404 393
Explanation:
As written, the equation is not an identity. Perhaps you want to show ...
(csc(x) +cot(x))² = (cos(x) +1)/(1 -cos(x))
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We will transform the left-side expression to the form of the right-side expression.
Answer:
$14.40
Step-by-step explanation:
a. (18) (80%) = (18) (.80) = $14.40 is discount
b. (x)(.80)= discount price
c. 18/80% =$22.50 is regular price
