The chance of winning the race of the horse A is 1/15 and that of horse B is 1/6. What is
1 answer:
You might be interested in
Answer:
D
Step-by-step explanation:
Given a quadratic equation in standard form : ax² + bx + c = 0
We can solve for x using the quadratic formula
x² + 2x + 9 = 0 ← is in standard form
with a = 1, b = 2 and c = 9
x = ( - 2 ± ) / 2
= ( - 2 ± ) / 2
= (- 2± ) / 2)
= (- 2 ± ) / 2
= ( - 2 ± 4i) / 2
= ±
= - 1 ± 2i → D
Answer:
,
,
∠
°,
∠
°
Step-by-step explanation:
In a parallelogram, opposite sides are congruent and therefore have the same length. Thus, and
.
Similarly, opposite angles in a parallelogram are congruent and therefore have the same measure. Thus, ∠
∠
° and
∠
∠
°. Hope this helps!