Answer:
WY = 180
Step-by-step explanation:
the diagonals of an isosceles trapezoid are congruent , so
ZX = WY , that is
8y - 4 = 7y + 19 ( subtract 7y from both sides )
y - 4 = 19 ( add 4 to both sides )
y = 23
Then
WY = 7y + 19 = 7(23) + 19 = 161 + 19 = 180
Number 3 is .4 i think just minus 1.2 - .8
Answer:
Answer: The percentage increase is 78.68%
Step-by-step explanation:
<u>ANSWER</u>
True
<u>EXPLANATION</u>
The given trigonometric equation is

Recall the double angle identity:

We apply this identity to obtain:

We maintain the LHS and simplify the RHS to see whether they are equal.
Expand the parenthesis


Recall that:


We apply these identities to get:




Also



Therefore the correct answer is True