D because it’s a 1:2 scale so you’ll take the area times 2 so D:20
Answer:
(-1,-3)
Step-by-step explanation:
The given system of equations is;
and
Let us equate the two equations to get;
Group similar terms;
Simplify;
Divide both sides by 9.
Put x=-1, into any of the equations, say (2);
The solution is;
(-1,-3)
-4x + 7y = 9 ⇒ -4x + 7y = 9 ⇒ 8x - 14y = -18
2y = -5x - 22 ⇒ -5x - 2y = 22 ⇒ <u>-35x - 14y = 154</u>
<u>43x</u> = <u>-172</u>
43 43
x = -4
-4x + 7y = 9
-4(-4) + 7y = 9
16 + 7y = 9
<u>- 16 - 16</u>
<u>7y</u> = <u>-7</u>
7 7
y = -1
(x, y) = (-4, -1)
Answer:
16/65 = 0.2462
Step-by-step explanation: "CAH" = Cosx= adjacent/ hypotenuse