Well, plug in 3 to x, and -4 to y.
5(3) + 2(-4) = 7
15 - 8 = 7
7=7
Yes, (3, -4) is a solution.
Answer:
1
Step-by-step explanation:
<IHG = 162
<IHK = 4x + 4
<KHG = 8x + 2
<IHG + <IHK + <KHG = 180° (sum of angles in a triangle is equal to 180°)
See attachment for better illustration of the triangle
162 + (4x + 4) + (8x + 2) = 180
162 + 4x + 4 + 8x + 2 = 180
168 + 12x = 180
Collect liketerms
12x = 180 - 168
12x = 12
x = 1
Answer:
5 * 5 * 5 * 5
Step-by-step explanation:
Use the rules of Indices.
5⁶⁻²
= 5⁴
Answer:
1: 11b(exponent of 2) +6b -9c
2: -11xy -9x -5x(exponent of 2)y
Step-by-step explanation:
.15% 15/100 its 15 percent of 100 so it makes it 15/100