Answer:
Lines are parallel if the sum of external angles of same side is 180°.
Step-by-step explanation:
Let one of the external angle is α°.
and other external angle is β° which is equal to α°/11. (∵ Given on is 11 times smaller than the other.)
Also β° = 1/6 of the right angle = (1/6)×90° = 15°.
β° = α°/11 , ⇒ α° = 11×β° = 11×15° = 165°.
α°+β° = 165° + 15° = 180°.
Here, sum of the two external angles = 180° ⇔ the given lines are parallel.
☁️ Answer ☁️
10, x = 10
x/5=2
simplify the equation to the form
x/5=2
Simplifying:
+ 0.2x=2
move all terms containing x to the left and all other terms to the right.
+ 0.2x=+2
simplify left and right side of the equation.
+ 0.2x=+2
divide both sides of the equation by 0.2 to get x.
x=10
Hope it helps.
Have a nice day noona/hyung ￣▽￣
Answer:
c 
-207
Step-by-step explanation:
Create an inequality and solve for c:
-23
Multiply by 9 on each side:
c -207 is the answer
- The Temperatures are on the top column numbers.
- The Wind speeds are on the left lateral numbers.
Answer: D, 23°F.
Answer:
3rd option
Step-by-step explanation:
The equation of a parabola in vertex form is
f(x) = a(x - h)² + k
where (h, k) are the coordinates of the vertex and a is a multiplier
Here (h, k ) = (- 1, - 25 ) , then
f(x) = (x - (- 1) )² - 25 , that is
= (x + 1)² - 25 ← expand using FOIL
= x² + 2x + 1 - 25
= x² + 2x - 24
