1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
pentagon [3]
3 years ago
11

What is the rule for the reflection?

Mathematics
1 answer:
sweet-ann [11.9K]3 years ago
6 0

Answer:

<em>Any incident ray traveling parallel to the principal axis on the way to the mirror will pass through the focal point upon reflection. Any incident ray passing through the focal point on the way to the mirror will travel parallel to the principal axis upon reflection.</em>

Step-by-step explanation:

You might be interested in
Please help pls and ty​
natali 33 [55]
No because the exact opposite of -3 would be 3.
7 0
3 years ago
Please help:<br><br> 3/4 of 24 cm
anzhelika [568]

Answer:

18

Step-by-step explanation:

24*.75=18

6 0
3 years ago
Read 2 more answers
In ∆ KLM above, NO // ML and &lt; KNO = &lt; KON. Find m &lt; MNL =
4vir4ik [10]

Answer: In ∆ KLM above, NO // ML and < KNO = < KON. Find m < MNL =

Step-by-step explanation: dUNNO

6 0
2 years ago
Suppose in the University of Manitoba, 40% of the students live in apartments. If 600 students are randomly selected, then the a
just olya [345]

Answer:

P(200\leq X\leq 400)=P(\frac{200-240}{12}\leq \frac{X-\mu}{\sigma}\leq \frac{400-240}{12})=P(-3.33\leq Z \leq 13.33)

=P(Z

So then the correct answer would be:

B) .9996

Step-by-step explanation:

The exact way to solve this problem is using the binomial distribution, assuming that our random variable of interest is "number of students living in apartments" represented by X and X \sim Bin(n=600, p =0.4)

And we want this probability:

P(200 \leq X \leq 400) [tex]In order to find this probability we can use the foloowing excel code:"=BINOM.DIST(400,600,0.4,TRUE)-BINOM.DIST(199,600,0.4,TRUE)"And we got:[tex] P(200 \leq X \leq 400) =0.999675[tex]But for this case the problem says that we need to approximate, so then we can use the normal approximation to the normal distribution. We need to check the conditions in order to use the normal approximation.&#10;[tex]np=600*0.4=240\geq 10

n(1-p)=600*(1-0.4)=360 \geq 10

So we see that we satisfy the conditions and then we can apply the approximation.

If we appply the approximation the new mean and standard deviation are:

E(X)=np=600*0.4=240

\sigma=\sqrt{np(1-p)}=\sqrt{600*0.4(1-0.4)}=12

And then X \sim N (\mu = 240, \sigma= 12)

And we are interested on the following probability:

P(200\leq X\leq 400)=P(\frac{200-240}{12}\leq \frac{X-\mu}{\sigma}\leq \frac{400-240}{12})=P(-3.33\leq Z \leq 13.33)

=P(Z

So then the correct answer would be:

B) .9996

6 0
3 years ago
Need help plz!!!!? Help would be appreciated
kolbaska11 [484]

Answer:

118•

Step-by-step explanation:

The interior side lengths are:

90

180-34

180-x

180-x

The sum of these are 360º

90 + 180-34 + 180-x + 180-x = 360

-2x = -236

x = 118º

3 0
3 years ago
Other questions:
  • tim earns $150 a week plus $15.50 for each desk he assembles. write an inequality to represent how many desks he needs to assemb
    14·1 answer
  • What is 3x-4=18+5x ?
    9·1 answer
  • What is the next term in the geometric sequence? 54,36,24
    6·2 answers
  • How many solutions does this equation have 3x-2x+4=2+x+2
    8·1 answer
  • Variable - ?<br> Equation -?<br> Soulution -?
    11·1 answer
  • A farmer ships oranges in wooden crates that each weigh 15 pounds when they are empty. The total weight of the crate when filled
    15·2 answers
  • Given the midpoint and one endpoint of a line segment, find the other endpoint.
    9·1 answer
  • What is the solution to –4(8 – 3x) ≥ 6x – 8?<br><br> x ≥ –<br> x ≤ –<br> x ≥ 4<br> x ≤ 4
    13·2 answers
  • What is the operation of (ab)c = c(ab)
    15·1 answer
  • 10 points
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!