Answer:
the answer is D
Step-by-step explanation:
If you take wha it says and plug it in, it makes the most sense
The answer would be D. (3, -4).
Work:
3 = x
-4 = y
3 • 5 = 15
-4 • 2 = -8
15 + -8 = 7
To check: y = x - 7
-4 = 3 - 7
3 - 7 = -4
Answer:
Step-by-step explanation:
The points are plotted and the figure is a parallelogram with base and height both of 3 units long.
<u>The area is:</u>
Answer:
<h2>Yes, because 5²+12²=13²</h2>
Step-by-step explanation:
Yes
Step-by-step explanation:
This is known as the triple tangent identity. Start with the fact that the three angles add up to 0.
(x − y) + (z − x) + (y − z) = 0
Subtract two terms to the other side and take the tangent:
x − y = -((z − x) + (y − z))
tan(x − y) = tan(-((z − x) + (y − z)))
Use reflection property:
tan(x − y) = -tan((z − x) + (y − z))
Now use angle sum identity:
tan(x − y) = -[tan(z − x) + tan(y − z)] / [1 − tan(z − x) tan(y − z)]
tan(x − y) = [tan(z − x) + tan(y − z)] / [tan(z − x) tan(y − z) − 1]
tan(x − y) [tan(z − x) tan(y − z) − 1] = tan(z − x) + tan(y − z)
tan(x − y) tan(z − x) tan(y − z) − tan(x − y) = tan(z − x) + tan(y − z)
tan(x − y) tan(z − x) tan(y − z) = tan(x − y) + tan(z − x) + tan(y − z)
