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Colt1911 [192]
2 years ago
10

If two lines are perpendicular, then they form right angles. If two lines meet at 90 angles. then they are perpendicular. Two li

nes meet at a 90 angle.
a
Conclusion: The lines are perpendicular and meet at a 90 angle.

b
Conclusion: The lines are parallel.

c
Conclusion: The lines form a right angle.

d
Conclusion: The lines meet at a 90 angle.
Mathematics
2 answers:
Luba_88 [7]2 years ago
5 0
The lines are Parallel
Galina-37 [17]2 years ago
3 0

Answer:

A — conclusion: the lines are perpendicular and meet at a 90 angle

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goldenfox [79]

Answer:

n = 150

Step-by-step explanation:

If n is the number of T-shirt sell each month, then the revenue function of Sophia's store is r = 21n .......... (1)

and the cost function of her store is C = 16n + 750 ........ (2)

Now, at break-even point, the revenue of a business is equal to its cost.

Therefore, r = C {From equations (1) and (2)}

⇒ 21n = 16n + 750

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⇒ n = 150

So, the break-even point of the store will occur when the number of T-shirt production is 150. (Answer)

8 0
3 years ago
Represent the geometric series using the explicit formula.
Dennis_Churaev [7]

The correct answer is:

b.) f(n) = 3 • (-2)^(n-1)

Further explanation:

Given sequence is:

3, -6, 12, -24, ...

We have to find the common ratio first.

Common ratio is the ratio between two consecutive terms of a geometric sequence.

It is denoted by r.

So,

Here,\\a_1=3\\a_2=-6\\a_3=12\\a_4=-24\\r=\frac{a_2}{a_1}=\frac{-6}{3}=-2\\\frac{a_3}{a_2}=\frac{12}{-6}=-2

General formula for geometric sequence is:

a_n=a_1r^{n-1}\\Here\\a_n\ is\ the\ nth\ term\\a_1\ is\ the\ first\ term\\and\\r\ is\ common\ ratio

Putting the values of a1 and r

a_n=3.(-2)^{n-1}\\f(n)=3.(-2)^{n-1}

Hence,

The correct answer is:

b.) f(n) = 3 • (-2)^(n-1)

Keywords: Geometric Sequence, Explicit formula

Learn more about geometric sequence at:

  • brainly.com/question/2048256
  • brainly.com/question/2115122

#LearnwithBrainly

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Gnom [1K]

ur answer is B Step-by-step explanation:

I said so just do it

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3 years ago
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