Mathematics High School

here is a list of numbers: 12, 13, 19, 16 ,32, 15, 13.a)work out the range of the numbers in the list.b)work out the mean of the numbers in the list

Answers

Answer 1

Answer: Mean: 17.14 Range: 20.

Step-by-step explanation: 12+13+13+15+16+19+32 25+13+15+16+19+32 38+15+16+19+32 53+16+19+32 69+19+32 88+32 120/7 17.14

32-12 20

Related Questions

y=6x+8 what is the y and x value. find y when x = -3 and find x when y = 2

Answers

Answer:

y= -13 x= -1

Step-by-step explanation:

y=6x+8

y=6(-3)+8

y= -21+8

y=-13

2=6x+8

-8=6x

-6=6x

x= -6/6= -1

Slove system of equation.

2x - 6y = 8
-3x + 9y = 12

Answers

answers:

2x - 6y = 8 -> x = 4 + 3y

-3x + 9y = 12 -> x = -4 + 3y

Find the value of y.

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Answer:

200 I think just kidding or you ca

The ratio of the number of girls to the number of boys is 3:5 . if the number of boys os 12 more than the number of girls ,calculate the total number of students in the class.

Answers

Answer:

48 students in the class

Step-by-step explanation:

The ratio of girls to boys is 3 : 5 = 3x : 5x ( x is a multiplier ) , then

5x = 3x + 12 ( 12 more boys than girls )

Subtract 3x from both sides )

2x = 12 ( divide both sides by 2 )

x = 6

Then

number of girls = 3x = 3 × 6 = 18

number of boys = 5x = 5 × 6 = 30

total students in class = 18 + 30 = 48

A Create a linear expression

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Answer:

(2x+A)(2x+B) = 4x2 + (2B+ 2A)x + AB. Trial and error gives the factorization 4x2 - 3x - 10 - (4x+5)(x- 2) .Step-by-step explanation:

What is the greatest common factor of 49, 62 and 80?

Answers

Answer:

literally 1

Step-by-step explanation:

scooby ate my scooby snax

Answer:

Your answer is...

Step-by-step explanation:

To find the greatest common factor, you have to list the prime factors of each number. That is how you find any GCF.

[tex]\boxed{\sf x+3=12}[/tex]

Answers

Answer:

x = 9

Step-by-step explanation:

x+3 = 12x+3-3 = 12-3x = 9

Answer:

x=9

Step-by-step explanation:

[tex]x+3=12[/tex]

[tex]x+3-3=12-3[/tex] ( Subtract 3 from both sides)

[tex]x=9[/tex]

help me!!! Luis wants to buy a skateboard that usually sells for $79.19. All merchandise is discounted by 12%. What is the total cost of the skateboard if Luis has to pay a state sales tax of 7.25%. Round your intermediate calculations and answer to the nearest cent.Luis wants to buy a skateboard that usually sells for $79.19. All merchandise is discounted by 12%. What is the total cost of the skateboard if Luis has to pay a state sales tax of 7.25%. Round your intermediate calculations and answer to the nearest cent.

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Answer: 64.60 i believe. By using economics, it was pretty easy. Also you had to round to the nearest cent, not dollar.

Suppose you are looking to purchase a new TV. You are placing it in an opening that is 136 cm wide but want to leave at least 2 cm of room on either side of the TV. If the TV screen measures 86 cm high, which is the correct equation to use to find the largest size TV that will fit? TV’s are measured based on the diagonal measure.

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pa brainliest answer po

Fizza had 9 bags of rice.She sold 1/3 of them.Find number of bags left.

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If Fizza sold 1/3 of 9 bags of rice only 6 bags would remain.

If you put 9 into three equal groups, it's three groups of three. Then you take aways one group (1/3) and you only have two groups of three (6).

Answer:

26/3

Step-by-step explanation:

first 9-1/3 then

27-1/3 =26/3

Help
I need help with this part

Answers

Answer:

[tex]3)y = kx \\ 4)y = kx \\ 5)y = - kx[/tex]

COS Find the quotient when the polynomial expression is divided by a binomial Find the quotient ANSWER SOLUTION CHOICES X2+11x+ 10) = (x+1) = Long Division Synthetic Division Answer: X2 + 5x + 1

Answers

Answer:

x=−1 or x=−9

Step-by-step explanation:

x2+11x+10=x+1

Step 1: Subtract x+1 from both sides.

x2+11x+10−(x+1)=x+1−(x+1)

x2+10x+9=0

Step 2: Factor left side of equation.

(x+1)(x+9)=0

Step 3: Set factors equal to 0.

x+1=0 or x+9=0

x=−1 or x=−9

Triangle ABC has perimeter 22 cm.
AB = 8cm
BC = 5cm
By calculation, deduce whether triangle ABC is a right-angled triangle.

Answers

Answer:

Step-by-step explanation:

A = 8 cm

B = 5 cm

C = 22 - 8 - 5 = 9 cm

Use the Pythagreom Theroem (a^2 + b^2 = c^2) if the two sides are equal to one another than it is a right triangle.

8^2 + 5^2 = 9^2

64 + 25 = 81

89 = 81

89 does not equal 81, so this is not a right triangle.

In 161616 years, Ben will be 333 times as old as he is right now.
How old is he right now?

Answers

Answer:

Step-by-step explanation:

I'm going to guess there's a typo in the question and it should be

In 16 years, Ben will be 3 times as old as he is right now.

x + 16 = 3x

subtract x from both sides

16 = 2x

Divide both sides by 2

8 = x

x = 8

The Picture is attached below

Answers

Answer:

Step-by-step explanation:

Amanda is 15 years old. She has two sisters, Britney, who is 12 years old, and Caitlin, who is the youngest. Amanda’s age is equal to 3 times the difference of Britney’s age and Caitlin’s age. How old is Caitlin? A. 3 years old B. 5 years old C. 7 years old D. 12 years old

Answers

Answer:

c. 7

Step-by-step explanation:

Amanda is 15. 15 is 3 times the age difference so you know the age difference is 5. Britney is 12 so subtract 5 and thats 7.

Answer:

C. 7 Years Old

Step-by-step explanation:

Did the quiz and got 100%

Cooper earned $214.50 at his job when he worked for 13 hours. How much money did he earn each hour?

Answers

Answer:

$16.50

Step-by-step explanation:

What is 16 1/2 as an improper fraction.

Answers

Answer: 16_1/2 improperly is simply 33/2.

What is the cost to make one flag?

Answers

Answer:

$1.75

Step-by-step explanation:

3.5*2.5=(8.75)/2=4.375*0.4=1.75 dollars

helpppppppppppppppppppppppppppppppp

Answers

Answer:

x ≤ -14

Step-by-step explanation:

does the graph represent a function? yea or no

Answers

Answer:

Step-by-step explanation:

Help plzzzz! I rlly need help asap

Answers

Answer:

x=0

Step-by-step explanation:

2x-9=0

2x=9

x=9/2

4x+10=0

4x=-10

x=-5/2

2(9/2)-9 =0

4(-5/2)+10=10

0.95929409956639. rational or irrational

Answers

Answer:yes

Step-by-step explanation:

2. Compare the weather on two different days using an inequality. Then see if their comparisons change by finding the absolute value of each.
Day 1: -3.5 F
Day 2: 5 F
Comparison of Day 1 and Day 2: __-3.5__ < __5___ or ___5__ > ___-3.5____
Comparison of days with absolute value: ____ < _____ or _____ > _______

WILL GIVE BRAINLIST FOR A CORRECT ANSWER

Answers

Answers:

-3.5 < 5

|-3.5| < |5|

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

Explanation:

Any negative number is always smaller than any positive number. So that's why -3.5 is smaller than 5 and where -3.5 < 5 comes from. It might help to set up a vertical number line. Stuff on top is larger than stuff down below.

---------

The vertical bars represent absolute value. The result of |-3.5| is 3.5 because this is the distance from -3.5 to 0 on the number line. Likewise, |5| = 5.

So that's how we get to |-3.5| < |5| which is effectively saying -3.5 is closer to zero than 5 is to zero.

What is the equation of this graphed line?

Enter your answer in slope-intercept form in the box.
__________

Answers

Answer:

y = 2x +2

Step-by-step explanation:

The general slope-intercept equation of a line is y=mx+b , where m is the slope and b is the y-intercept ( where the line intersects the y-axis)

From the graph we see that

m= difference in y/difference in x = (6 - -6)/ (2- -4) = 12/6 = 2

m=2 is the slope

b is where the line cuts the y-axis and is at 2

b=2 is the y-intercept

Substitute m and b in the general equation to find the equation of the graphed line.

y = 2x +2

PLZZZ HELP FOR BRAINLIST

Answers

Answer:

I D K GUESS ITS 1 2 4 I GUESS THINKING

Step-by-step explanation:

look at photo that is added

Answers

The slope intercept form using the two points would be : y= 2x-13

plz help!I hope you have a wonderful day!!

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18. It would be the second graph. The third graph is eliminated as the boy takes a time period to shave, which means there should be a constant point (horizontal line) right after the first incline. The first one is eliminated as the boy takes a bath which requires another constant point in the graph.

19.
C
E
D
A
B

find the value of x if possible

Answers

Answer:

Step-by-step explanation:

6x - 17 = 3x + 7

3x = 24

x = 8

Help...Question 1 Objective: Apply properties of rhombi to solve mathematical and real-world problems. Rhombus LMNO is shown with its diagonals. Angle MNO measures 119º. What is the measure of angle LMN? M P N o

Answers

Answer:

61°

Step-by-step explanation:

As in all parallelograms, adjacent angles are supplementary.

∠LMN = 180° -∠MNO

∠LMN = 180° -119° = 61°

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