You could answer this question easily by applying synthetic division:
_______________
-5 / 4 14 -9
-20 30
---------------------------
4 -6 21
Work shown above! x = 7
To solve use the supplementary angle next to the unknown angle to find an expression for that unknown angle and use that with the expressions inside the triangle to set equal to 180 and solve for x.
hope this helps c:
Answer:
She should have multiplied by 4, not divided
Step-by-step explanation:
Given
- 11 = 13 ( add 11 to both sides ) ← correct
= 24 ( multiply both sides by 4 to clear the fraction )
H = 4 × 24 = 96
H is divided by 4, thus the inverse operation is to multiply
-3<11
Step-by-step explanation:
-3x+2<11
-3x<11-2
-3x<9
x>-3