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
MatroZZZ [7]
3 years ago
8

which uppercase letters will not appear reversed when they are held in front of a mirror? what type of symmetry do these letters

have?

Mathematics
1 answer:
Irina-Kira [14]3 years ago
3 0
A,H,I,M,O,T,U,V,W,X,Y --- these have vertical symmetry

a word whose reflection is also a word....YAM and MAY 
You might be interested in
Machine A and machine B both make car parts.
Klio2033 [76]
504+640=1144 hope this helps!
5 0
3 years ago
Question Help Suppose that the lifetimes of light bulbs are approximately normally​ distributed, with a mean of 5656 hours and a
koban [17]

Answer:

a)3.438% of the light bulbs will last more than 6262 hours.

b)11.31% of the light bulbs will last 5252 hours or less.

c) 23.655% of the light bulbs are going to last between 5858 and 6262 hours.

d) 0.12% of the light bulbs will last 4646 hours or less.

Step-by-step explanation:

Normally distributed problems can be solved by the z-score formula:

On a normaly distributed set with mean \mu and standard deviation \sigma, the z-score of a value X is given by:

Z = \frac{X - \mu}{\sigma}

After we find the value of Z, we look into the z-score table and find the equivalent p-value of this score. This is the probability that a score will be LOWER than the value of X.

In this problem, we have that:

The lifetimes of light bulbs are approximately normally​ distributed, with a mean of 5656 hours and a standard deviation of 333.3 hours.

So \mu = 5656, \sigma = 333.3

(a) What proportion of light bulbs will last more than 6262 ​hours?

The pvalue of the z-score of X = 6262 is the proportion of light bulbs that will last less than 6262. Subtracting 100% by this value, we find the proportion of light bulbs that will last more than 6262 hours.

Z = \frac{X - \mu}{\sigma}

Z = \frac{6262 - 5656}{333.3}

Z = 1.82

Z = 1.81 has a pvalue of .96562. This means that 96.562% of the light bulbs are going to last less than 6262 hours. So

P = 100% - 96.562% = 3.438% of the light bulbs will last more than 6262 hours.

​(b) What proportion of light bulbs will last 5252 hours or​ less?

This is the pvalue of the zscore of X = 5252

Z = \frac{X - \mu}{\sigma}

Z = \frac{5252- 5656}{333.3}

Z = -1.21

Z = -1.21 has a pvalue of .1131. This means that 11.31% of the light bulbs will last 5252 hours or less.

(c) What proportion of light bulbs will last between 5858 and 6262 ​hours?

This is the pvalue of the zscore of X = 6262 subtracted by the pvalue of the zscore X = 5858

For X = 6262, we have that Z = 1.81 with a pvalue of .96562.

For X = 5858

Z = \frac{X - \mu}{\sigma}

Z = \frac{5858- 5656}{333.3}

Z = 0.61

Z = 0.61 has a pvalue of .72907.

So, the proportion of light bulbs that will last between 5858 and 6262 hours is

P = .96562 - .72907 = .23655

23.655% of the light bulbs are going to last between 5858 and 6262 hours.

​(d) What is the probability that a randomly selected light bulb lasts less than 4646 ​hours?

This is the pvalue of the zscore of X = 4646

Z = \frac{X - \mu}{\sigma}

Z = \frac{4646- 5656}{333.3}

Z = -3.03

Z = -3.03 has a pvalue of .0012. This means that 0.12% of the light bulbs will last 4646 hours or less.

5 0
3 years ago
The flu fighter competed against 40 bands in the CHICKEN soup country battle of the bands. The top 15% will compete in the all v
Gemiola [76]
41 times 0.15 equals 6.15. as you can't have 0.15 of a band, that means only 6 bands will compete.
4 0
3 years ago
Use =, <, or > signs (ratios)
oksano4ka [1.4K]

Answer:

< > > I am pretty sure that is it

5 0
3 years ago
What are correct statements about the function f(x) = (x+3)(2x-4)(x+3)(2x-1)
labwork [276]
Hehejdjjdjehejididieidjejdjdjdususjds
8 0
3 years ago
Other questions:
  • The circumference of my circle is 45 inches. What is the diameter
    7·2 answers
  • What times what equals 12 but still equals 11? the equation is 5n to the 2nd power + 19+12
    13·1 answer
  • Can you help me with the first one
    14·1 answer
  • C
    12·2 answers
  • -2x+8x=20 ans can you please include the steps. Thank you
    10·2 answers
  • A 48$ shirts cost $22 more than one half the cost of a pair of pants. How much does the pair of pants cost?
    10·1 answer
  • Jasmine went shopping and spent $56 on accessories and clothes. she spent $18 more on clothes than accessories. write and solve
    5·1 answer
  • LMNO is a parallelogram, with and . Which statements are true about parallelogram LMNO? Select three options.
    13·2 answers
  • Please answer all the questions.
    9·1 answer
  • 1/2a - 4 = 6 try and answer this question
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!