Answer:
EACH central angle = 360 / number of sides
number of sides = 360 / each central angle
number of sides = 360 / 40
number of sides = 9
Answer:
y = 9x - 11
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
Calculate m using the slope formula
m = (y₂ - y₁ ) / (x₂ - x₁ )
with (x₁, y₁ ) = (- 3, - 38) and (x₂, y₂ ) = (8, 61)
m = = = 9, thus
y = 9x + c ← is the partial equation
To find c substitute either of the 2 points into the partial equation
Using (8, 61), then
61 = 72 + c ⇒ c = 61 - 72 = - 11
y = 9x - 11 ← equation of trend line
Answer:
x=10/7
Step-by-step explanation:
simplify both sides of the equation
2 * 2 + 6 = 7x
4 + 6 = 7x
combine like terms
(4 + 6) = 7x
10 = 7x
flip the equation
7x = 10
divide both sides by 7
7x/7 = 10/7
answer is 10/7
We know that
<span>the length of the straw before it was folded is equal to the perimeter of the triangle
perimeter=12x</span>²-6 in
substitute the value of x
x=1.5 in
perimeter=12*(1.5)²-6-----> 21 in
the answer is
21 in