Interval notation(-infinitive, -4)
Multiply the cost, 120, by 0.07
you will get 8.4
Janet will pay $8.40 in sales tax
Answer:
<h2>(3 + i)(4 + 2i) = 10 + 10i</h2>
Step-by-step explanation:
Use FOIL: (a + b)(c + d) = ac + ad + bc + bd
and i² = -1
![(3+i)(4+2i)\\\\=(3)(4)+(3)(2i)+(i)(4)+(i)(2i)\\\\=12+6i+4i+2i^2\qquad\text{combine like terms}\\\\=(12-2)+(6i+4i)\\\\=10+10i](https://tex.z-dn.net/?f=%283%2Bi%29%284%2B2i%29%5C%5C%5C%5C%3D%283%29%284%29%2B%283%29%282i%29%2B%28i%29%284%29%2B%28i%29%282i%29%5C%5C%5C%5C%3D12%2B6i%2B4i%2B2i%5E2%5Cqquad%5Ctext%7Bcombine%20like%20terms%7D%5C%5C%5C%5C%3D%2812-2%29%2B%286i%2B4i%29%5C%5C%5C%5C%3D10%2B10i)
1. Angle: <span>the union of two rays that have a common endpoint.
</span>2. Acute Angle: <span>an angle whose measure is greater than zero and less than 90°
</span>3. Right Angle: <span>an angle whose measure equals 90°.
</span>4. Obtuse Angle: <span>an angle with a measure greater than 90° but less than 180°.
</span>5. Bisector of an Angle: <span>a set of points which divides the angle into two angles of equal measure.
</span>6. Perpendicular Line: lines that intersect to form right angles.
Answer:a
Step-by-step explanation:hope this helps