Answer:
1548
Step-by-step explanation:
10 percent *15840 =
(10:100)*15840 =
(10*15840):100 =
158400:100 = 1584
Using cross multiplication

(x-4)(x+2)=0
x-4=0
x+2=0
Thus x=4,-2
Answer:
Rewrite tan(w + Pi) using the tangent sum identity. Then simplify the resulting expression using tan(Pi) = 0
Step-by-step explanation:
According to tangent sub identity
Tan(A+B) = TanA+TanB/1-tanAtanB
Applying this in question
Tan(w+Pi) = tan(w)+tan(pi)/1-tan(w)tan(pi)
According to trig identity, tan(pi) = 0
Substitute
Tan(w+Pi) = tan(w)+0/1-tan(w)(0)
Tan(w+Pi) = tan(w)/1
Tan(w+Pi) = tan(w) (proved!)
Hence the correct option is
Rewrite tan(w + Pi) using the tangent sum identity. Then simplify the resulting expression using tan(Pi) = 0
Given:
The inequality is

To find:
The solution of the given inequality.
Solution:
We have,

Isolate the variables terms on the left side.


Divide both sides by -5 and change the inequality sign as we divide the equality by a negative value.


Therefore, the correct option is D.