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
Marina CMI [18]
2 years ago
13

Which of the lists of letters all have line symmetry?

Mathematics
2 answers:
babymother [125]2 years ago
8 0
<h3>Answer:  1. (A, B, C, D)</h3>

==================================================

Explanation:

Check out the diagram below to see where the lines of symmetry are located.

For the letter A, we have a vertical line through the center that is the mirroring line. Reflecting one half over that line generates the other half.

For letter B, we have a horizontal line through the center. This applies to letters C and D as well.

This is why answer choice 1 is the final answer.

-----------

For letter Z, we have neither a vertical nor a horizontal mirror line. This letter doesn't have any lines of symmetry (though it does have rotational symmetry). So we can rule out answer choice 2.

Letter N is pretty much the same idea as letter Z. There aren't any lines of symmetry but we do have rotational symmetry. So we can rule out answer choice 3.

Lastly, we can rule out answer choice 4 because letter S has the same properties as letters Z and N.

Sunny_sXe [5.5K]2 years ago
6 0

Answer:

The first row

Step-by-step explanation:

Letters A,B,C,D

You might be interested in
Question 3*
il63 [147K]
Please help me with the last question just write the equation in vertex form
I’ll mark as brainliest

8 0
2 years ago
Read 2 more answers
The radius of a circular candle is 5 mm. If I want to attach a ribbon to the outside, how much ribbon do I need?
fredd [130]

Answer:

B

Step-by-step explanation:

5 x 2 = diameter

10 x 3.14 (pie)

= 31.4 = D

5 0
3 years ago
Read 2 more answers
Find m\angle Am∠Am, angle, A. Note that m\angle Am∠Am, angle, A is acute. Round to the nearest degree. \Large{^\circ} ∘ degrees
marysya [2.9K]

Answer:

The answer is that the measure of ∠α is ≈ 20° when rounded to the nearest °

Step-by-step explanation:

To find the measure of ∠α you need to use the reciprocal of the formula for the law of sine which says that a/Sinα = b/Sinβ = c/Sin C. The reciprocal of this gives the new equation that states Sinα/a = Sinβ/b = Sin C/c, and this will help you to find the measure of the missing angle in °'s.

In the triangle line segment BC = 5units is opposite to point A & ∠α. Line segment AC = 7units  is opposite of point and ∠β which is = 28°. And finally, the hypotenuse length and the values of point C & ∠C are unknown, so they aren't important to solving the problem. Knowing all this you can plug in all the known values into the new formula, and start working on figuring things out.

To find the measure ∠α, you first write down everything, putting things into their proper places, so since you're solving for sinα you want the equation to look like this:

sinα/5 = sin28°/7

Then for the second step, you want to isolate the sinα. (To get it by itself × both left and righthand sides by 5 to begin simplifying).

This leaves you with :

sinα = sin28°÷7 · (5)    [And allows you to now solve for the right side of the equation, bringing us to our third step which is to once again simplify. So what you want to do is whip out your calculator and set it to degree mode, so you can find the of sin28° which is = 0.46947156278. Then ÷ that by 7, which will get you a number = 0.06706736611. Finally, take 0.06706736611 × 5,  and you will get the value = 0.33533683056, as your final answer in the third step]

Your equation should now look something like this :

sinα = 0.06706736611 × 5 or 0.33533683056

Moving onto the fourth step, you need to use the inverse of the trig function of sin to get your absolute value. (remember the inverse of sine or acrsin = sin^-1) Here you will need to multiply sin^-1 by 0.33533683056.

And also by now, you'll want to stop writing the equation as sinα = sin^-1 ×

0.33533683056, otherwise you won't get an answer, instead, you'll need to write:

α = sin^-1 × 0.33533683056

So once you do that for the fifth and final step, you'll need to simplify the equation on the righthand side one last time, and you should get the answer of α = 19.5930217327°. Which when rounded to the nearest ° is ≈ 20°.

8 0
2 years ago
Linear equation 5+3x=17​
azamat

Answer:

x=4

Step-by-step explanation:

5+3x=17

-5        -5

3x=12

3       3

x=4

3 0
2 years ago
Read 2 more answers
Solve using cross multiplication method, ax + by = a^2 ; bx + ay = b^2
zvonat [6]

Answer:

x=a²+ab+b²/a+b , y=-ab/a+b

Step-by-step explanation:

The system of the given equation may b written as:

ax+by-a²=0

bx+ay-b²=0

Here,

a1=a,b1=b,c1= -a²

a2=b,b2=a and c2= -b²

By cross multiplication we get

x/b*(-b²)-(-a²)*a = -y/a*(-b²)-(-a²)*b = 1/a*a-b*b

x/-b³+a³ = -y/-ab²+a²b  = 1/a²-b²

Now

x/-b³+a³ = 1/a²-b²

x=a³-b³/a²-b²

x=(a-b)(a²+ab+b²)/(a-b)(a+b)

x=a²+ab+b²/a+b

And,

-y/-ab²+a²b = 1/a²-b²

-y=a²b -ab²/a²-b²

y=ab²-a²b/a²-b²

y=ab(b-a)/(a-b)(a+b)

y= -ab(a-b)/(a-b)(a+b)

y= -ab/a+b

Hence x=a²+ab+b²/a+b , y=-ab/a+b....

8 0
3 years ago
Other questions:
  • Simplify the expression: 4(2a)+7(-4b)+(3b-5)
    15·1 answer
  • Matthew has saved a total of $10,400 of which 2600 is invested in the stock market whatpercent of his total savings is invested
    6·1 answer
  • ary Stevens earns $6 an hour at her job and is entitled to time-and-a-half for overtime and double time on holidays. Last week s
    6·1 answer
  • Phytagoras therom solving method​
    14·1 answer
  • Sam and Bruno were computing how many kilometers they rode in the 3 bike trips they took last month. In order, they rode 45.7, 4
    5·1 answer
  • The number of players in a tennis tournament is reduced by half (50%) after every round. In round 1 there are 256 player, in rou
    12·1 answer
  • ????!! Someone please explain this
    10·1 answer
  • Jessica is a custodian at Arco Arena she waxes 20m squared of the floor in 3/5 of an hour Jessica waxes the floor at a constant
    11·1 answer
  • A recipe for a pitcher of lemonade calls for 7/8 cup of sugar, 3/4 cup of lemon juice, and 3 3/4 cups of water. How many total c
    7·1 answer
  • Find the least number which when divisible by 20, 24, 32 and 38 leaves a remainder 5 in cach case
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!