Is the domain discrete or continuous? Minutes, x
Gallons, y
0
60
5
45
10
30
15
15

1/4 because there is 4 grades.

225x²+4=0

225x²=0-4

225x²=-4

x²=-4/225

x=±√-4/225

1. 180°. the sum of the interior angles of a triangle is 180°, for the equilateral triangle that it has three equals side is 60°+60°+60°=180°.

2. 60°. each interior angle of a equilateral triangle is 60°

3. 120°. the measure of ∠m is 120°, the sum of the angles ∠m and ∠n is equal to 180°. so, in order to find the measure of ∠m, we have ∠m+∠n=180° > ∠m=180°-∠n > ∠m=180°-60°=120°.

4. 360°. the sum of the exterior angles of an equilateral triangle is ∠m+∠r+∠x=120°+120°+120°=360°. the exterior angles of any triangle always add 360°.

this is a good question! i’ll do some research and what i find, i’ll contact you asap when i have something! ✊