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
suter [353]
3 years ago
10

How many lines of symmetry does the figure have? If the figure has no line symmetry, enter the number

Mathematics
1 answer:
Arlecino [84]3 years ago
8 0

Answer:

One

Step-by-step explanation:

Line of symmetry of a figure is an imaginary line about which the figure can be divided into two equal halves.

In other words, a line passing the center of the figure about which we can fold the figure into two halves overlapping each other.

For the trapezoid given in the figure, line of symmetry will be a vertical line perpendicular to the parallel sides.

Therefore, The figure has 1 line of symmetry.

You might be interested in
Help please it’s for home work
Dmitry [639]
Slope would be 2
Y intercept would be 2
y = 2x + 2
6 0
3 years ago
What is the volume in cubic inches of the right rectangular prism with a length of 5 inches a width of 8 inches, and a height of
Karo-lina-s [1.5K]

Answer:

800 in^{2}

Step-by-step explanation:

Volume = lwh

3 0
3 years ago
Read 2 more answers
Simplify<br> Three over five<br> Or three fifths
serg [7]

3/5 cannot be simplified into a smaller fraction.


7 0
3 years ago
Read 2 more answers
Many high school students take the AP tests in different subject areas. In 2007, of the 144,796 students who took the biology ex
Nataly [62]

Answer:

(0.582-0.485) - 1.64 \sqrt{\frac{0.582(1-0.582)}{144796} +\frac{0.485(1-0.485)}{211693}}=0.0942  

(0.582-0.485) + 1.64 \sqrt{\frac{0.582(1-0.582)}{144796} +\frac{0.485(1-0.485)}{211693}}=0.09978  

And the 90% confidence interval would be given (0.0942;0.09978).  

We are confident at 90% that the difference between the two proportions is between 0.0942 \leq p_A -p_B \leq 0.09978

Step-by-step explanation:

Previous concepts

A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".  

The margin of error is the range of values below and above the sample statistic in a confidence interval.  

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".  

p_A represent the real population proportion female for Biology

\hat p_A =\frac{84199}{144796}=0.582 represent the estimated proportion female for biology

n_A=144796 is the sample size for A

p_B represent the real population proportion female for calculus AB

\hat p_B =\frac{102598}{211693}=0.485 represent the estimated proportion female for Calculus AB

n_B=211693 is the sample size required for B

z represent the critical value for the margin of error  

The population proportion have the following distribution  

p \sim N(p,\sqrt{\frac{p(1-p)}{n}})  

The confidence interval for the difference of two proportions would be given by this formula  

(\hat p_A -\hat p_B) \pm z_{\alpha/2} \sqrt{\frac{\hat p_A(1-\hat p_A)}{n_A} +\frac{\hat p_B (1-\hat p_B)}{n_B}}  

For the 90% confidence interval the value of \alpha=1-0.90=0.1 and \alpha/2=0.05, with that value we can find the quantile required for the interval in the normal standard distribution.  

z_{\alpha/2}=1.64  

And replacing into the confidence interval formula we got:  

(0.582-0.485) - 1.64 \sqrt{\frac{0.582(1-0.582)}{144796} +\frac{0.485(1-0.485)}{211693}}=0.0942  

(0.582-0.485) + 1.64 \sqrt{\frac{0.582(1-0.582)}{144796} +\frac{0.485(1-0.485)}{211693}}=0.09978  

And the 90% confidence interval would be given (0.0942;0.09978).  

We are confident at 90% that the difference between the two proportions is between 0.0942 \leq p_A -p_B \leq 0.09978

5 0
3 years ago
Write a rule for the nth term of the arithmetic sequence. -23,-30,-37,-44...
n200080 [17]
You can try khan academy
8 0
3 years ago
Other questions:
  • Cual valor de 3 en 530 es 30 veces mayor que el valor de 3 en 300
    15·1 answer
  • Prompt: What does Lincoln hope to gain by using the statement, "let us judge not, that we be not
    7·2 answers
  • There are a total of 135 seats, 118 front handlebars and 269 wheels. How many bicycles, tandem bicycles, and tricycles in the wh
    14·1 answer
  • Four pencils are held together with a band.
    13·1 answer
  • Which of the numbers below is greatest? <br><br> -2, -2.3, -2.5, -2 2/3
    6·2 answers
  • Solve this system with substitution:<br> 2x - 5y = 22<br> x + 5y = -4
    5·1 answer
  • Rectangle ABCD is reflected over the y-axis. What rule shows the input and output of the reflection, and what is the new coordin
    13·1 answer
  • What is 15 x minus 3 y = 0 written in slope-intercept form? y = 5x y = negative 5 x x = one-fifth y x = 5 y
    14·1 answer
  • Barry orders a wallet for $8.99, a sweater for $14.49, and a watch for $72.49 from mail order catalog he adds $11.52 for tax shi
    10·2 answers
  • Diego measured the length of a pen to be 22 cm. The actual length of the pen is 23 cm. Which of these is closest to the percent
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!