Answer:
- x² + 11x - 28
Step-by-step explanation:
y = - (x - 4)(x - 7) ← expand factors using FOIL
= - (x² - 11x + 28) ← distribute parenthesis by - 1
y = - x² + 11x - 28 ← in standard form
Answer:
the one where your mouse is at
Step-by-step explanation:
first one
Answer:
7, 24, 26
Step-by-step explanation:
The correct triple should be 7,24,25
That numer loks like "S" or it could be an eight.
3 < (S + 4) OR
3 < (8 + 4)
1. consider one angle of a (convex) heptagon. From that angle you can construct 7-3=4 diagonals. (-3 because we cannot create diagonals with the adjacent vertices and the angle itself )
2. 4 diagonals create 5 triangular regions. (check the picture)
3. So the sum of the measures of the interior angles of the heptagon is 180°*5=900°.
4. The measure of the remaining 7th interior angle is 900°-(120+150+135+170+90+125)°=110°.
5. The largest exterior angle is when the interior angle is the smallest.
6. The smallest interior angle is 90°, so the largest exterior angle is 180°-90°=90°
Answer: 90°