Answer:
D. x = 2
Step-by-step explanation:
Answer:
$13.75 , $11.25
Step-by-step explanation:
If they took off 45% of the original price, that means you gotta subtract
$25 - 45% = 13.75
to find the amount of the discount, subtract 13.75 from 25
$25-$13.75 = $11.25
Cos x = 1/√10
sin x = √( 1 - 1 /10 ) = √9/10 = - 3/√10 ( because x is in Q IV )
cot 2 x = cos 2 x/sin 2x = ( cos²x - sin²x)/ (2 sinx cosx ) =
= ( 1/10 - 3/10 )/(2 * (-3/√10)*1/√10)= (- 8/10 ) / (-6/10 ) = 8/6 = 4/3
Step-by-step explanation:
64 2/3 = 16
4 square root 256 = 64
16 3/2 =64
3 square root - 64 = - 24
16 - 24 64 64
X=6 or -6 either one is correct
