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2 years ago

Can someone help me with this plzz

Mathematics

2 answers:

Bad White [126]2 years ago

4 0

14 times

Add up all the numbers in the table and you get 50. If every 50 spins it lands on 1 seven times. 50x2=100 so 7x2=14

topjm [15]2 years ago

3 0

Answer:

Step-by-step explanation:

We can see that the spinner is spun 50 times if we add all the "times spun" up.

7 + 8 + 7 + 8 + 11 + 9 = 50

So if we multiply this by 2, we should get the theoretical probability that 1 will be spun if the spinner was spun 100 times.

1 was spun 7 times when we spun the spinner 50 times, so we can predict that 1 will be spun 14 times if we spin the spinner 100 times.

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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

2 years ago

Solve 18q – 2q2 = 0

3241004551 [841]

Answer:q=9

Step-by-step explanation:

3 0

2 years ago

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Please helpp!!!!

fomenos

Answer:

Dom(gof)=Dom(f)={1,3,4}.

(gof)(1)=g{f(1)}=g(2)=3.

(gof)(3)=g{f(3)}=g(5)=1.

(gof)(4)=g{f(4)}=g(1)=3.

∴gof={(1,3),(3,1),(4,3)}.

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2 years ago

Y=x2 x=-3 -2 -1 0 1 2 3 y=

brilliants [131]

Answer:

see below

Step-by-step explanation:

Y=x^2

x=-3 -2 -1 0 1 2 3

y=(-3)^2 (-2)^2 (-1)^2 0^2 1^2 2^2 3^2

9 4 1 0 1 4 9

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2 years ago

Find the volume of the cube below.

rosijanka [135]

The answer is 125cm^3

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3 years ago

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