The order of the vertices counts; we're mapping X to X', Y to Y' and Z to Z'. So the image of Y is
Answer: Y'
Answer:
12.56 m
Step-by-step explanation:
The circumference of a circle is given by
C = 2 * pi *r
C = 2 * (3.14) * 2
C =12.56
Answer:
a) 11.283 dollars
b) 1.435 hour
Step-by-step explanation:
1 kilo watt of electricity used for 1 hour
Charges of electricity per unit = $0.05224
Laura uses 5 heaters to warm her house. The electricity consumed by each use 1800 wats or 1.8 kilo wats
a) Charges in one day = 5 heaters * 1.8 kilo wats per hour * 24 hour* $0.05224 per kilowats per hour
= 11.283 dollars
b) 75 wat light bulb consumes 0.075 kilo wats per hour
Charge per kilowat per hour = $0.05224
In order to cost 1 $, the 75 wat bulb need to be on for 1.435 hour
Answer:
12.30
Step-by-step explanation:
Soh Cah Toa
You know the angle, and the opposite. You want to find the adjacent. So you will you Toa.
tan(°) = O/A
tan(26°) = 6/A
Rearrange to get A on its own.
Atan(26°) = 6
A = 6/tan(26°)
A = 12.301 = 12.30 (2dp)
The grouping has changed in the equation.
3(mn) = (3m)n
This is the associative property of multiplication.
