Explanation

Cross multiply: 15 × 18 = 9 × x →270 = 9x

Divide both sides by 9: x = 30

Explanation

Given: 3 × 2 - 5 + 12 ÷ 6

Using order of operations (PEMDAS):

= 6 - 5 + 2

= 1 + 2

= 3

Explanation

RCA connectors transmit audio and video signals between devices.

They are commonly used in TVs, DVD players, and sound systems.

Explanation

NVR (Network Video Recorder) is a device used to record video footage from IP (network) cameras.

It stores and manages surveillance video data digitally over a network.

Explanation

DSLR, CCTV, and Action Camera are recognized types of cameras.

"Indefinite" is not a camera type and does not exist in this context.

Explanation

Spreadsheets organize data in rows and columns, making analysis easier.

They allow calculations, sorting, and visualization of patient data efficiently.

Explanation

System errors can cause incomplete or inconsistent log entries.

This reduces the reliability and accuracy of usage logs.

Explanation

KPI (Key Performance Indicator) tracks progress toward goals.

It helps evaluate effectiveness and performance of processes or individuals.

Explanation

Percentage formula = Percentage = Part/Whole × 100

6/1000 × 100 = 0.6%

Explanation

Not listening carefully indicates the person is not giving full focus.

This leads to incomplete understanding and communication errors.