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
Maru [420]
3 years ago
10

Reflectional symmetry is the quality a design has if it maintains all

Mathematics
1 answer:
stiks02 [169]3 years ago
8 0
I think the answer is b
You might be interested in
An insurance company collected data from a class of high school sophomores on whether or not they have a cell phone and whether
NeX [460]

Answer:

C. Those who have a car tend to have a cell phone.

Step-by-step explanation:

The relative frequency for a data set n is calculated by dividing each frequency x_i by n.

We have a table that relates the use of cars and cell phones.

First, we take from the table the population that has a car.

n = 18

Then, of the students who have a car, 12 have a cell phone and 6 do not have a cell phone.

Then we calculate the relative frequencies f_{x_i} for those who have a cell phone and those who do not.

______________________________________________

Relative frequency   Students with car  n = 18.

-------------------------------------------------- --------------------------------------

C<em>ell phone     No cell phone      Total n</em>

 12/18                    6/18                     18

_______________________________________________

_______________________________________________

Relative frequency   Students with car  n = 18.

-------------------------------------------------- --------------------------------------

C<em>ell phone     No cell phone      Total n</em>

  0.666              0.333                   18

________________________________________________

Most students who have a car also have a cell phone.

Now we calculate the relative frequency for students who do not have a car.

_______________________________________________

Relative frequency  Students without a car  n = 7

-------------------------------------------------- --------------------------------------

<em>Cell phone       No cell phone             Total  n</em>

 2/7                     5/7                          7

_______________________________________________  

_______________________________________________

Relative frequency  Students without a car  n = 7

-------------------------------------------------- --------------------------------------

<em>Cell phone</em>      <em>  No</em> <em>cell phone           Total  n</em>

 0.286                 0.714                              7

_______________________________________________

Most students who do not have a car do not have a cell phone either.

<em>Then these data suggest that. Those who have a car tend to have a cell phone.</em>

Option C

6 0
3 years ago
Eli and Claire work at a dry cleaners ironing shirts. Eli can iron 15 shirts per hour,
shusha [124]

Answer:

∴ Eli worked for 8 hours and Claire worked for 9 hours

Step-by-step explanation:

Let us form the two equations then graph them

∵ Eli worked for x hours

∵ Claire worked for y hours

∵ Eli and Claire worked a combined 17 hours

∴ x + y = 17 ⇒ (1)

∵ Eli can iron 15 shirts per hour

∵ Claire can iron 20 shirts per hour

∵ They ironed 300 shirts together in 17 hours

→ Multiply x by 15 and y by 20, then add the products and equate their

   sum by 300

∴ 15x + 20 y = 300 ⇒ (2)

Now let us find 2 points in each equation and draw the two lines which represent the two equations

→ In equation 1, put x = 0

∵ x = 0

∵ 0 + y = 17

∴ y = 17

∴ The first point is (0, 17)

→ Put y = 0 and find x

∵ y = 0

∴ x + 0 = 17

∴ x = 17

∴ The second point is (17, 0)

→ In equation 2, put x = 0

∵ x = 0

∵ 0 + 20y = 300

∴ 20y = 300

→ Divide both sides by 20

∴ y = 15

∴ The first point is (0, 15)

→ Put y = 0 and find x

∵ y = 0

∴ 15x + 0 = 300

→ Divide both sides by 15

∴ x = 20

∴ The second point is (20, 0)

Draw the first line using points (0, 17) and (17, 0)

Draw the second line using points (0, 15) and (20, 0)

The graph is attached down

From the graph

The red line represents equation (1)

The blue line represents equation (2)

The two lines intersected at point (8, 9) which is the solution of the system of equations

∴ The solution of the two equations is (8, 9)

∴ Eli worked for 8 hours and Claire worked for 9 hours

8 0
3 years ago
Abag contain 3 red ,5 black and 4 white marbles. one marble is drawn at random. what is the probablity not black marble​
kondaur [170]
<h3>Answer:    7/12</h3>

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

Explanation:

There are B = 3+5+4 = 12 marbles total, of which A = 12-5 = 7 are not black. Or you could note that we have A = 3 red + 4 white = 7 marbles that are not black.

The probability of selecting a non-black marble is A/B = 7/12

7/12 = 0.5833 = 58.33% approximately

8 0
3 years ago
Find the equation of the line that passes through the points (6,14) and is parallel to y=-4/3x-1
Yuri [45]

Answer:

y= -4/3 + 22

Step-by-step explanation:

y= -4/3x -1

14 = -4/3 (6) + b

14= -8 + b

22= b

8 0
3 years ago
Please help and show work please and thank you ! :) I’ll give brainliest
lina2011 [118]

Answer:

216 yds

Step-by-step explanation:

6 0
3 years ago
Other questions:
  • A pentagonal prism is cut by a plane perpendicular to the base. What is the shape of the cross section that is formed?
    11·1 answer
  • Please help me asap
    10·1 answer
  • GIVE OUT BRAINLY 2) Kathleen is a sales associate in a jewelry store. She earns $560/wk plus an 8% commission on sales. How much
    7·1 answer
  • Forty-eight pens are packaged in 4 boxes. how many pens are packaged in 9 boxes
    15·1 answer
  • Evaluate 3^4<br><br> A. 81<br> B. 12<br> C. 27<br> D. 64<br><br> Can y’all pls help me
    12·1 answer
  • Miss David's birthday is in April, and she is going to have a party. She is looking to buy a bag of decorations. Each bag has tw
    12·1 answer
  • Two sides of a triangle measure 15 cm and 21 cm. which of the following could be the measure of the third side
    9·2 answers
  • Please help NO LINKS
    14·1 answer
  • Explain what the slope of each line below represents. Then find the slope and give its units
    8·1 answer
  • Marsha gave the cashier $20 to pay for 3 pairs of socks. The cashier gave her $5.03 in change. Each pair of socks costs the same
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!