Answer:
Na+ and Cl- should be examples of an ion.
<Hope I answered your question>
Answer:
Step-by-step explanation:
2 1/5 is equivalent to 0.022. Yes, 0.0215 is less than 0.022.
This is clearer if you write the two values in a column:
0.0220 (larger than 0.0215)
0.0215 (smaller than 0.0220)
Answer:
Obtuse triangle.
Step-by-step explanation:
Obtuse = angle that is bigger than 90°
Answer:
Sorry
Step-by-step explanation:
Cables are forming 3 right angled triangles the pole being the shared height of them;
(height) b= 12yd
(base) a= 9yd
(hypotenuse) c= ?
Need to find the long side (hypotenuse);
a^2 + b^2 = c^2
12^2 + 9^2 = 225
Take square root of 225 = 15
Then you have;
1x 12yd = 12
3x 9 yd = 27
3x 15yd = 45
Add them up = 84yd of cable needed
