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3 years ago

If x = 3 and y = 8 , evaluate the following expression: y − x

Mathematics

2 answers:

kotykmax [81]3 years ago

6 0

Answer:

Step-by-step explanation:

if x=3 and y =8 then you will have to do 8-3 which is 5

i hope this helps

VARVARA [1.3K]3 years ago

5 0

Answer:

Step-by-step explanation:

y-x

8-5 = 5

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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.

<u>Mean absolute deviation for Jason's scores.</u>

|84-80| = 4

|84-90| = 6

|84-95| = 9

|84-85| = 1

|84-70|= 14

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

<u>Mean absolute deviation for Jill's scores</u>

|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.

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3 years ago

Write an inequality that expresses the reason the lengths 5 feet, 10 feet, and 20 feet could not be used to make a triangle. Exp

Nadusha1986 [10]

Pythagoreon theorem
a^2+b^2=c^2
5^2+10^2=125 not 20^2

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3 years ago

Select the correct answer.

ValentinkaMS [17]

Answer:

The answer is A.

$g(x) = 2( {x}^{2} - 3x - 28)$

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3 years ago

Brainly.com fam help me fine the value of the x thank you so much

Thepotemich [5.8K]

First you subtract 47 from both sides (-47 from 47 and -47 from 32)
Then you get -3x = -15
Divide -3 from -3x and -3 from -15
Leaving you with X = 5

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3 years ago

Which points on the number line represent the quotients of these expressions? 12 divided by -6 and -15 divided by -3

yaroslaw [1]

Answer:

2,5

Step-by-step explanation:

basta isipin mo BWHAHAHAHAHHA balakadan

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3 years ago