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Vesnalui [34]
3 years ago
6

To determine the total score in a dance contest, the scores from three different judges are added together. The judges gave Joyc

e scores of 8.6, 7.9, and 9. What is Joyce’s total score?
Mathematics
1 answer:
Gnesinka [82]3 years ago
5 0

Answer: 25.5

Step-by-step explanation:

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What is the greatest number of relative maximum that a polynomial of degree 15 can have?
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i dont know

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2 years ago
PLZZ HELP BASIC ALGEBRA<br> Solve the equation <br> 8+2z=3(2-z)
iris [78.8K]

Answer:

z = -\frac{2}{5} or - 0.4

Step-by-step explanation:

8+2z = 6 - 3z

2z = 6 - 8 - 3z

2z + 3z = - 2

5z = -2

z = -\frac{2}{5} or - 0.4

4 0
3 years ago
Solve by combining equations <br> PLS HELP!<br> 3x - 2y = 12<br> -3x+8y= -6
andreyandreev [35.5K]

3x−2y=12;−3x+8y=−6

Step: Solve3x−2y=12for x:

3x−2y=12

3x−2y+2y=12+2y(Add 2y to both sides)

3x=2y+12

3x

3

=

2y+12

3

(Divide both sides by 3)

x=

2

3

y+4

Step: Substitute

2

3

y+4forxin−3x+8y=−6:

−3x+8y=−6

−3(

2

3

y+4)+8y=−6

6y−12=−6(Simplify both sides of the equation)

6y−12+12=−6+12(Add 12 to both sides)

6y=6

6y

6

=

6

6

(Divide both sides by 6)

y=1

Step: Substitute1foryinx=

2

3

y+4:

x=

2

3

y+4

x=

2

3

(1)+4

x=

14

3

(Simplify both sides of the equation)

Answer:

x=

14

3

and y=1

3 0
3 years ago
A carnival game has the possibility of scoring 50 points, 75 points, or 150 points per turn. The probability of scoring 50 point
MariettaO [177]

Answer:

The game’s expected value of points earned for a turn is 71.

Step-by-step explanation:

Here we know that:

Points     Frequency

50           55

75            32

150          13

Here points earned is a random variable.

We need to find its expected value,

Finding Expected value:

Expected value of a random variable is its mean value. So we will first find the mean value of points earned per turn from the table we are given.

Total number of turns = sum of frequencies

= 55 + 32 + 14 = 100

Total points earned = 50(55) + 75(32) + 150(13)

= 7100

Expected value of points earned for a turn = Mean value of points

= Total points/no. of turns

= 7100/100

= 71

8 0
3 years ago
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