MATHEMATICS HIGH SCHOOL

8n + 2 = 5n + 11 , does anyone one know the answers

Answers

Answer 1

Answer:

Answer:

n=3

Step-by-step explanation:

8n + 2 = 5n + 11

Subtract 5n from each side

8n-5n + 2 = 5n-5n + 11

3n+2 = 11

Subtract 2 from each side

3n+2-2 = 11-2

3n = 9

Divide by 3

3n/3 = 9/3

n =3

Answer 2

Answer:

Answer:

n=3

Step-by-step explanation:

Let's do the algebra step-by-step.

8n+2=5n+11

-2 -2

8n=5n+9

-5n -5n

3n=9

/3 /3

n=3

Hope this helps :D

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List all the factors of 22. 1, 2, 4, 6, 11, 22
1, 22
1, 2, 4, 11, 22
1, 2, 11, 22

Answers

1,4,22,11,1,2 those are the factors of 22 I hope i could help if u need them in order just tell me :)

Answer:

1,2,4,11,22

Step-by-step explanation:

A car travels 180 miles in 3 hours, which is a rate

Answers

The rate at which the car is traveling is 60 miles per hour when a car travels 180 miles in 3 hours .

The rate of a car's travel is calculated by dividing the distance traveled by the time taken. In this case, the car travels 180 miles in 3 hours .

Rate = Distance / Time

Rate = 180 miles / 3 hours

Rate = 60 miles per hour

So, the rate at which the car is traveling is 60 miles per hour. This means that the car covers a distance of 60 miles in one hour of travel .

To know more about rate click here :

brainly.com/question/22037050

#SPJ3

Answer:

it is 60 miles per hour

Step-by-step explanation:

Find the probability that the number is in set A’ giving your answer as a decimal

Answers

Answer:

0.7

Step-by-step explanation:

The probability that the number is in set A’ is the probability that a number is not in set A.

From the venn diagram attached below, they are two sets, set A and set B. Set A has 3 elements {15, 12 18}, Set B has 5 elements {12 18 10 14 16}.

The total number of elements in the universal set is 10 i.e {10 11 12 13 14 15 16 17 18 19}

therefore the number of elements in set A' is 7, i.e {10 11 13 14 16 17 19}.

the probability that the number is in set A’ = number of elements in set A'/number of elements in the universal set

probability that the number is in set A’ = 7 / 10 = 0.7

Answer:

0.7

Step-by-step explanation:

count them up and decide by how many there are then simplify

The equation of the line of best fit of a scatter plot is y = 6x − 9. What is the slope of the equation?−6

−9

9

6

Answers

The slope of the equation is 6

Answer:

The answer would be 6.

Step-by-step explanation:

What are the vertex, focus, and directrix of the parabola with the given equation?12y = x^2 –6x + 45 (1 point)

Answers

Answer:

Vertex is (3,3)

Focus (3,6)

Directrix y=0

Step-by-step explanation:

We are given that an equation of parabola

$12y=x^2-6x+45$

Subtract 45 on bot sides then we get

$12y-45=x^2-6x$

To make complete square on right side

We add 9 on both sides

$12y-45+9=x^2-6y+9$

$12y-36=(x-3)^2$ ( $(a-b)^2=a^2+b^2-2ab,(x-3)^2=x^2-6x+9)$

$12(y-3)=(x-3)^2$

Compare it with the equation of parabola along y- axis

$(x-h)^2=4p(y-k)$

Then, we get h=3,k= $3$

$4p=12$

$p=(12)/(4)=3$

Vertex of parabola =(h,k)=(3,3)

Focus of parabola=(x,p+k)=(3,3+3)=(3,6)

Equation of directrix of parabola ,y=k-p=3-3=0

y=(((x^2)-(6*x)+45)/12)

What is the GCF of 9 and 18?

Answers

9=1,3,9
18=1,2,3,6,9,18

Answer: 9

Step-by-step explanation:

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