Step-by-step explanation:
5r+1=a(m+r)
or , 5r+1=am+ar
or, 5r-ar=am-1
or , r(5-a)=1(am-1)
: <u>r</u><u> </u> =<u>(</u><u>am-1)</u>
1 (5-a)
Answer:
y = - 3, x = 6
Step-by-step explanation:
15x + 31y = - 3
x = - y + 3
15(- y + 3) + 31y = - 3
-15y + 45 + 31y = - 3
16y + 45 = - 3
16y = - 48
y = - 3
x = - (- 3) + 3
x = 3 + 3
x = 6
We have that
<span>x - y = 4-------> multiply by -1-----> -x+y=-4-----> equation 1
x+ 2y = 4------> equation 2
add equation 1 and equation 2
-x+y=-4
x+2y=4
-----------------
0+3y=0-----> y=0
x+2y=4------> x+0=4------>x=4
the solution is the point (4,0)</span>
110, 220, 330, 440, 550
hope this helps
Answer:
I think it's A, y = 1/2 cos(x + π/4)
