Answer:
8x² + 11x - 9
Step-by-step explanation:
M - N
= 5x² + 7x - 4 - 1(- 3x² - 4x + 5) ← distribute parenthesis by - 1
= 5x² + 7x - 4 + 3x² + 4x - 5 ← collect like terms
= 8x² + 11x - 9
Answer:
Option (3). 120° will be the answer.
Step-by-step explanation:
By using the theorem of secants intersecting externally,
Measure of angle formed by two secants, from a point outside the circle is half the difference of the measures of the intercepted arcs.
m∠C = 
36° = 
72° =
°
= 72 + 48
= 120°
Therefore, Option (3) is the answer.
Answer:
x = 88/3 = 29.333
Step-by-step explanation:
The numbers are 3.5 and -10.5
Step-by-step explanation:
- Step 1: Sum of two numbers = -7. Let one number be x. Then, the other number = -7 - x. Difference = 14
⇒ x - (-7 - x) = 14
⇒ x + 7 + x = 14
⇒ 2x = 7
∴ x = 7/2 = 3.5
-7 - x = -7 - 3.5 = -10.5