Answers:
11.) B. -1/3
12.) A. -1
Answer:
Step-by-step explanation:
The directrix given is vertical , so we will use the formula :
P is the distance between the focus , that is 5 - 0 = 5
Therefore : p = 5
(h,k) is the mid point between the focus and the directrix , that is
(h,k) = = =
Therefore:
h =0
k = 0
substituting into the formula : we have
= 4(5)(
Therefore : the equation in vertex form is
No solution 7x square and -3 cant equal you a positive or a negative answer
Answer:
units
Step-by-step explanation:
Considering an equilateral triangle, the measure of the angles are 60ᵒ each and the sides have equal length of 2 units. If the equilateral triangle is divided into two equal right triangles, we have angles 30ᵒ, 60ᵒ and a right angle.
Let the value of the side opposite 60ᵒ angle be represented by x., the side opposite the right angle is 2 units, and that opposite the 30ᵒ is 1 unit.
Applying the Pythagoras theorem to determine the unknown side of the triangle, we have;
= +
= +
4 = + 1
= 4 - 1
= 3
⇒ x =
The length of the side opposite 60ᵒ angle is units.