Yeah, you’re right, I like to think that when the number is a decimal and I have to put it in scientific notation the exponent next to the 10 is negative and then when the number is a whole number and I have to change it to scientific notation then the exponent next to the ten is positive.
1/3 -7/3 = 9 ...i guess .
3. Right
5. Isosceles
Isosceles triangles have 2 sides measuring the same length and a right triangle contains a 90 degree angle