Answer:
a = -⅓
b = 3
Step-by-step explanation:
-3a + b = 4
3a + b = 2
b = 4 + 3a = 2 - 3a
6a = -2
a = -2/6
a = - ⅓
-> b = 4 + 3(-⅓)
b = 4 - 1
b = 3
Answer:
(2, -5)
Step-by-step explanation:
<h2><em>Greetings from Brasil...</em></h2>
In angle A we have supplementary angles, that is
130 + X = 180
X = 180 - 130
X = 50
From the properties of the angles of a triangle - r<em>efer to attached</em>,
W = X + 105
as X = 50 - already calculated above, then
W = 50 + 105
<h3>W = 155</h3><h3 />
Answer:
54.9
Step-by-step explanation:
8.3 * 3 = 24.9
7.5 * 4 = 30
24.9 + 30 = 54.9