The Answer is 11.5 because 3•-8=-24+5=-19-4=-23%2 gives you 11.5
Answer:
6.25 pounds used
3.75 pounds lelft
Step-by-step explanation:
10 pounds/8=1.25 pounds
1.25 x 5 = 6.25pounds used
10 - 6.25 = 3.75 pounds left
Decimal places mean we just start counting immediately after the decimal point, so:
2dp: 0.00
1dp: 0.0
Significant figures, we start counting starting at the first non zero number
So we start counting at the 9, therefore:
2sf: 0.00097
3sf: 0.000965
Refer to the diagram below for the sketch of the position of the mirror, Michelle, and the flagpole.
Using similar triangle concept, to find the height of the flagpole, we first need to find out the scale factor of the horizontal distance.
We write this as ratio
Mirror to Michelle : Mirror to Flagpole
12ft : 48ft
1 : 4
So the ratio of the height is
Michelle : Flagpole
1 : 4
5ft : 20ft
Answer: A