1. using point-slope formula:
(y2-y1)/(x2-x1)=
(-8-7)/(1-(-2))=
-15/3=
-5
The slope is -5
The equations will be:
y-7=-5(x+2)=
<h2><u><em>
y=-5x-3</em></u></h2>
The value of a particular trigonometric expression that is cos 2θ under the third quadrant is -119/169
Given:
sin θ = -⁵/₁₃
This can be seen from the trigonometric identity.
cos 2θ = 1 - 2sin²θ
From trigonometric identities, we know that;
cos 2θ = 1 - 2sin²θ
Thus;
cos 2θ = 1 - 2(-⁵/₁₃)²
cos 2θ = 1 - 2(25/169)
cos 2θ = 119/169
since cos θ is negative in the third quadrant, then we have;
cos 2θ = -119/169
so; cos θ is negative in the third quadrant, so ;
cos 2θ = -119/169
For more information about trigonometric ratio visit brainly.com/question/13276558
Answer:
circumference: 37.7
area: 113.1
Step-by-step explanation:
Answer:
144m
Step-by-step explanation:
To find the area of trapezoidal prism, you would have to multiple the area of the trapezoid by the height of the prism.
The formula for trapezoid is 1/2(L+W) x H
So the area of trapezoid would be 1/2(10+6) x 2 = 16
The height is 9m so it would be 16 x 9, which is 144m
