Simplify 2 x2 - y for x = 3 and y = -2.

A. 10
B. 14
C. 20
D. 16

Answer:

The answer is D, or 5/7

Answer:

The slope is 5/7

Step-by-step explanation:

From a point to get to the next point, you would need to go 5 up and 7 to the right in this graph.

Answer:

C) 0

Step-by-step explanation:

Hi there!

We are given these two points: (11, -10), and (-16, -10)

We want to find the slope of these two points
The formula for the slope (m) calculated from two points is [tex]\frac{y_2-y_1}{x_2-x_1}[/tex], where [tex](x_1, y_1)[/tex] and [tex](x_2, y_2)[/tex] are points

We have 2 points, but let's label their values to avoid any confusion.

[tex]x_1=11\\y_1=-10\\x_2=-16\\y_2=-10[/tex]
Now substitute these points into the formula (remember: the formula has SUBTRACTION)

m=[tex]\frac{y_2-y_1}{x_2-x_1}[/tex]

m=[tex]\frac{-10--10}{-16-11}[/tex]

simplify

m=[tex]\frac{-10+10}{-16-11}[/tex]

m=[tex]\frac{0}{-27}[/tex]

divide

m=0

The answer is 0, which is option C.

Hope this helps!

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Answer:

Step-by-step explanation:

Step one:

given data

we are told that she earned $3 every 20minute for gutter cleanup

and for mow, she earns $3.6 every 20 minutes.

Step two;

1. For a 40 minutes gutter cleanup she will make

=3*40/20

=3*2

=$6

1. For a 2 hours mow she will make

2 hours is 120 minutes

=3.6*120/20

=3*6

=$18

So in total she earned 6+18= $24

Answer:

-3/7

Step-by-step explanation:

slope = (y2-y1)/ (x2-x1) = 4-1/3-10 = 3/-7

Answer:  The required amount of money spent on each of the two video games is less than or equal to 45.25.

Step-by-step explanation:  Given that Zachary is planning to send a video game to each of his two brothers. He buys the same game for both brothers and pays $4.75 to ship each game.

We are to write and solve an inequality find the amount spent on each game without spending more than $100.

Let $x be the amount that is spent on each of the two video games.

Then, according to the given information, the inequality can be written and solved as follows :

Thus, the required amount of money spent on each of the two video games is less than or equal to 45.25.

Answer:

820

Step-by-step explanation:

779/x = 95/100

779×100

77,900 ÷ 95

820

Answer:

How does the number trick work?

Trick 1: Think of a number

Pick a whole number between 1 and 10.

Add 2.

Multiply by 2.

Subtract 2.

Divide by 2.

Subtract your original number.

Everyone's final answer will be 1.

Step-by-step explanation:

The Number 5 Trick. Ask somebody to think of a number and keep it secret. Then ask that person to double the secret number and then multiply by 5. Ask for the total. Whatever the total is, knock off the last digit and you will have the secret number the person mentally chose at the start.

LEMMEBE HONEST

I HAVE NO IDEAAAA

“Think-of-a-number” tricks

These tricks come in two types: Think of a number (but don't tell me), do some arithmetic with that number, and I can predict your result. Think of a number, do some arithmetic, tell me your result, and I can instantly say what number you started with.

Hope this helps!

Sending U good luck!

Answer:

The answers are B,D,E

Step-by-step explanation:

Answer:

bde

Step-by-step explanation:

Answer:

5x+3y=8.50 and 3x+2y=5.25

Step-by-step explanation:

because i got it correct

Answer:

b and c

Step-by-step explanation:

Answer: this is the answer please follow to the explanation

Step-by-step explanation:

21x + 14y = 168. X=2y

14y = -21x +168. 2y=x

14 divided by 14 on one side and

-21 + 168 divided by 14 on the other side

You should get...

Y= -3/2x +12

For part 2 where they want you to put the 2 numbers in, you should put the point they intercept which is (6,3).

Well, have a good day

Answer:

8x+(-27)=y

Step-by-step explanation:

To find an equation of a line, you use the formula mx+b=y

M=slope

x=x cooridnates

y=y coordinates

b=y intercept

Slope:

You use the formula y2-y1/x2/x1 to find slope.

5-(-3)/2-5

5+3/-3

8/-3

8

Y intercept:

8(5)+b==3

40+b=-3

b=-37

Equation: 8x+-37=y

The equation of the line that passes through each pair of points (5,-3), (2,5) is 3y = -8x+31

An equation is a mathematical statement that shows that two mathematical expressions are equal.

Given that, a line passes through each pair of points (5,-3), (2,5)

We know that, the equation of a line passing through two points (x1, y1) and (x2, y2) is given by,

(y-y1) = (y2-y1)/(x2-x1)(x-x1)

Where, (y2-y1)/(x2-x1) is, representing the slope of the line.

Here, x1 = 5, x2 = 2 and y1 = -3, y2 = 5

Equation of the line =

(y+3) = (5+3)/(2-5)(x-5)

y+3 = -8/3(x-5)

3y+9 = -8x+40

3y = -8x+31

Hence, The equation of the line that passes through each pair of points (5,-3), (2,5) is 3y = -8x+31

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The like terms combined and equivalent expressions are given below.

Given are the following expressions -

a. 4x + 3x

b. 3x + 5x – 1

c. 5 + 2x + 7 + 4x

d. 4 - 2x + 5x

e. 10x – 5 + 3x – 2

We have -

[A] -

4x + 3x

4x + 3x = 7x

[B] -

3x + 5x – 1

3x + 5x – 1 = 8x - 1

[C] -

5 + 2x + 7 + 4x

5 + 2x + 7 + 4x = 6x + 12 = 6(x + 2)

[D] -

4 - 2x + 5x

4 - 2x + 5x = 3x + 4

[E] -

10x – 5 + 3x – 2

10x – 5 + 3x – 2 = 13x - 7

Therefore, the like terms combined and equivalent expressions are given above.

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Answer:

The correct answer is 2437.5

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

Answer:

x is equal to -9 thus it becomes -18 in the whole setup

Answer:

18734

Step-by-step explanation:

mark brainliest please:)

Answer:

3/8

Step-by-step explanation:

Andrew filled a measuring cup with 7/8 of olive oil

He poured 1/2 of the oil into a bowl

Therefore the amount of oil that will be left can be calculated as follows

= 7/8 - 1/2

= 3/8

Hence 3/8 oil will be left

Answer:

Here are 5 (2,4), (3,6), (1,2), (4,8), (5,10)

Step-by-step explanation:

Answer:

First finish the brackets

21+9=30

30=30

So, it’s true

Step-by-step explanation:

Answer:

you got the right answer it equals 30

Step-by-step explanation:

i think that is what your asking and the answer is already correct

but you distribute the 3 into the 7 so you would do 3x7+9 and that would give you 30

Answer:

{x,y}={  11 /69   ,−  11 /10  }

Step-by-step explanation:

Answer:

1 :):):):):):):):):):):):):):):):)):)):):):):):::):):):):):):):::):):)

Step-by-step explanation:

Answer:

The must have the same dimension

Step-by-step explanation:

Two matrice may be added or subtracted only if they have the same dimension; that is, they must have the same number of rows and columns.

When we add 2 matrices the matrices should be of the same size and same dimension

A matrix is referred to as the collection of numbers or variables arranged in a set of rows and columns, where each number or variable is referred to as an "element".

In order to perform addition or subtraction on matrices, they must be of the same size and dimension ie. two matrices must have an equal number of rows and columns. Simply add or subtract the numbers in each corresponding position of the first matrix with the number in the same position of the second matrix. The sum of two matrices A and B will be a matrix that has the same number of rows and columns as A and B. The sum of A and B denoted A + B, is computed by adding corresponding elements of A and B

A=[tex]\left[\begin{array}{ccc}a1&a2\\a3&a4\end{array}\right][/tex]  B=[tex]\left[\begin{array}{ccc}b1&b2\\b3&b4\end{array}\right][/tex]

A+B=[tex]\left[\begin{array}{ccc}a1+b1&a2+b2\\a3+b3&a4+a5\end{array}\right][/tex]

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129 degrees is the correct answer for the missing angle number 1 :)

Answer:

Step-by-step explanation:

9 is 39

Answer:

(a) M + W = Indoor= [26 55] Outdoor = [32 49]

(b) The value indicates the sum of the indoor volunteers ages 18-39 so the Value would be, 34.

(c) M – W = Indoor = [8 15] Outdoor = [-16 3]

(d) This value indicates the difference of the volunteers indoors 40. So the value would be 15.

Step-by-step explanation:

If this is wrong my apologies i tried LOL

but i will let you know when i get the results back asap!

The value of the element t11 is 34 and the value of the element at d12 is 15.

Two matrices are equal if and only if their shapes are same, and they've got the same elements for each corresponding row and column positions.

M + W = Indoor= [26 55] Outdoor = [32 49]

The value indicates the sum of the indoor volunteers ages 18-39,

Therefore, the Value would be, 34.

To create a matrix by subtracting the women's matrix from the mens matrix.

Now the difference;

M – W = Indoor = [8 15] Outdoor = [-16 3]

This value indicates the difference of the volunteers indoors 40 so

Therefore the value would be 15.

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Answer:

66 %

Step-by-step explanation:

it is 66% because 203 is less than half of 605 .So, you would add together .

203+203=406   Thats not even close to 605 so now you add almost half so that would be about 66%

IT'S D

HOPE THIS HELPED MARK ME BRAINLIST PLS

Answer:

The number is 39

Step-by-step explanation:

Let the unknown number be x:

[tex](x-(-15))=2(x-24)\\x+15=2x-24\\39=x\\\therefore x=39[/tex]

Answer: The correct answer would be 164(c)

Step-by-step explanation:

You are Miguel Cervantes de Navas y Colon, captain in the Royal Spanish

Army in Sevilla in the year 1842. Outside your barracks window is a stack of

cannonballs, as shown in the illustration. On an idle afternoon you decide to

calculate the number of cannonballs in the stack. What is the number of

cannonballs?

650 is the number of cannonballs.  It typically fires a projectile propelled by an explosive chemical.

A cannon constitutes a large-caliber gun that belongs to the artillery category. It typically fires a projectile propelled by an explosive chemical. Prior to the development of smokeless powder in the late 19th century, gunpowder (sometimes known as "black powder") served as the main propellant.

Depending on their intended purpose on the battlefield, different types of gun combine and balance these characteristics to differing degrees. Cannons differ in gauge, effective range, mobility, rate of fire, angle of fire, and firepower. A large artillery weapon is a cannon.

By utilizing the formula of a square pyramid,

n(n+1)(2n+1)/6

12(12+1)(2(12)+1)/6

12(13)(25)/6

2*13*25

=650

Therefore, 650 is the number of cannonballs.

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that's a lot of damage  

Answer:

560

Step-by-step explanation:

1=160

2=320

3=480

4=640

5=800

6=960

7=1120

8=1280

9=1440

JUST ADD 160 EACH TIME

hope this is what your looking for   :)