Answer:
abc are correct
Step-by-step explanation:
i took the test
The correct answer is

In fact, this is a trinomial of the form

, whose solutions are given by

Using this formula for the trinomial of the problem, we find:

<span>we see that this trinomial has two coincident solutions (x=3 with multiplicity 2). This means that it can be rewritten as a perfect square, in the following form:
</span>

<span>
</span>
Answer:
46 and 277
Step-by-step explanation:
Given
f(x) =
- 8x - 11 ← substitute x = 3, x = - 4 into f(x)
f(3) =
- 8(3) - 11 = 81 - 24 - 11 = 81 - 35 = 46
f(- 4) =
- 8(- 4) - 11 = 256 + 32 - 11 = 288 - 11 = 277
Answer:
Step-by-step explanation:
By applying tangent rule in the given right triangle AOB,
tan(30°) = 


By applying tangent rule in the given right triangle BOC,
tan(60°) = 
OC = BO(√3)
OA + OC = AC

2√3(BO) = 60
BO = 10√3
OC = BO(√3)
OC = (10√3)(√3)
OC = 30
By applying tangent rule in right triangle DOC,
tan(60°) = 
OD = OC(√3)
OD = 30√3
Since, BD = BO + OD
BD = 10√3 + 30√3
BD = 40√3
≈ 69.3
Answer:
y = -1x + 1
Step-by-step explanation: