25x25+20x25+20x15+15x25=1800 the answer is D.
Answer:
$80
Step-by-step explanation:
$5 per hour, then for 16houurs. 5*16=80
Answer:
A
Step-by-step explanation:
We know that identity:
cos^2x+sin^2x=1.
From that we have:
cos^2x=1-sin^2x.
So it is:
cos^2x-sin^x=(1-sin^2x)-sin^2x=1-2sin^2x.
And this is A).
B) is not treu because cos^2 is not sin^2x+1
C) is not true because cos^2x-sin^x=1 is false.
D) is not treu because cos^2x is not sin^2x-1
140 + 10w = m
10w = $10 per week
140 = what he started with
Answer:
z=62 degrees
y=117 degrees
Step-by-step explanation:
z is just supplement of 118 degree angle. So z is just 180-118=62.
The sum of all angles in the four sided shape is ((number of sides)-2)180.
(4-2)180=360.
We know three angles already.
360-62-97-84=117
Thus, y is 117 degrees.
