Answer:
-3 - - 6 = 3
2 - - 8 = 10
Step-by-step explanation:
You use keep change change. When subtracting negative you get the first number change the sign to the opposite, then change the second numbers sign
<h2>example
- -3 - - 6</h2><h2> -3 + 6</h2><h2> 2 - - 8</h2><h2> 2 + 8</h2>
The scale factor from the first map to the second map can be determined by:
scale factor = (length of trail in first map) / (length of trail in second map)
8 cm / 6 cm = 1.33
The landmark on the first map is a triangle with side lengths of 3mm, 4mm, and 5mm.
3mm = 3 * 1.33 mm = 3.99mm
4mm = 4 * 1.33 mm = 5.32mm
5mm = 5 * 1.33 mm = 6.65mm
try asking the teacher if you could get some help Step-by-step explanation:
Let the shorter diagonal be x, then
x^2 = 6^2 + 10^2 - 2 x 6 x 10 x cos 70 = 36 + 100 - 120 cos 70 = 136 - 41.04 = 94.96
x = sqrt(94.96) = 9.7 cm
The other angle of the parallelogram is 1/2(360 - 2(70)) = 1/2(360 - 140) = 1/2(220) = 110
Let the longer diagonal be y, then
y^2 = 6^2 + 10^2 - 2 x 6 x 10 x cos 110 = 36 + 100 - 120 cos 110 = 136 + 41.04 = 177.04
y = sqrt(177.04) = 13.3 cm.
Therefore, the length of the diagonals are 9.7 cm and 13.3 cm.
