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3 years ago

What is the rotational symmetry of a wheel

Mathematics

2 answers:

Marianna [84]3 years ago

8 0

Answer:

Step-by-step explanation:

I did the answer on usatestprep

lianna [129]3 years ago

4 0

That's when an object appears the same after spinning.

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Please help me♡

soldier1979 [14.2K]

Answer:

i think it is no solution

one

many

Step-by-step explanation: i dont know for sure if i am right so i wold double check tried my best

3 0

2 years ago

Jason and Jill or two students in mr. White's math class. On the last 5 quizzes Jason scored an 80 90 95 85 and 70. Jill scored

Mrac [35]

Jason's scores : 80 90 95 85 70 and

Jill's score : 70 75 90 100 95.

Mean of Jason's scores = $\frac{80 + 90 + 95 + 85 + 70}{5}=\frac{420}{5}=84.$

Mean of Jill's scores = $\frac{70+75+90+100+95}{5}=\frac{430}{5}=86$

Now, in order to find the mean absolute deviation, need to find the difference of each score from means.

Mean absolute deviation for Jason's scores.

|84-80| = 4

|84-90| = 6

|84-95| = 9

|84-85| = 1

|84-70|= 14

$\frac{4+6+9+1+14}{5}=\frac{34}{5}=6.8$

Mean absolute deviation for Jill's scores

|86-70| = 16

|86-75| = 11

|86-90| = 4

|86-100| = 14

|86-95|= 9

$\frac{16+11+4+14+9}{5}=\frac{54}{5}=10.8$

Jill got average quiz score 86 and Jason got 84.

Therefore, Jill got better quiz average.

Also, the mean absolute deviation for Jason scores is less that is 6.8 than 10.8.

Therefore, Jason got more consistent grades.

8 0

3 years ago

2 Which is a factor of 4x + x - 14

kiruha [24]

Answer: 5x - 14

Step-by-step explanation: Combine like terms 4x + x - 14 and turn it into 5x - 14

4 0

2 years ago

What is 1/5 divided by 1/3? a. 3/5 b. 15 c. 5/3 d. 1/15

torisob [31]

The answer should be 3/5

4 0

3 years ago

Read 2 more answers

Find the solution of the system of equations. 15x -4y = -50 3x - 2y = -16

Fittoniya [83]

Answer:

15x - 4y =-50 -----(i)

3x - 2y=-16 --------(ii)

Using Substitution

From (i)

15x=4y-50

x=4y-50/15

Substitute x=4y-50/[15] into eqn (ii)

3x - 2y= -16

3[4y-50]/15 - 2y =-16

Multiply through by 15 to clear the fraction

3(4y - 50) - 30y=-240

12y - 150 -30y=-240

12y-30y=-240+150

-18y = -90

y=90/18

y=5.

Substitute into any eqn of choice to get x

3x - 2y=-16

3x - 2(5)=-16

3x - 10=-16

3x=-16+10

3x=-6

x=-6/3

x=-2.

x= -2

y=5

5 0

2 years ago