LuANN is playing a math game. She chooses 3 cards. The value of her cards is hownn below
First card: -12
Second card: 3
Third card: -5
What was the sum of the value of LuANNS three cards?

Answer:

-8

Step-by-step explanation:

an=−8n+56

Answer:

Simplifying

x = 4.5 + -0.5y

Step-by-step explanation:

The boundary line of the inequality is intersecting the x-axis at 4.5.

The given inequality is 4x + 2y < 18.

A linear inequality divides the coordinate plane into two halves by a boundary line where one half represents the solutions of the inequality. The boundary line is dashed for > and < and solid for ≤ and ≥. The half-plane that is a solution to the inequality is usually shaded.

Graph the inequality by finding the boundary line, and then shading the appropriate area.

Now, 4x + 2y < 18 can be written as y<−2x+9.

The boundary line of the inequality is given below.

The boundary line of the inequality is intersecting the x-axis at 4.5.

To learn more about the inequalities visit:

https://brainly.com/question/17675534.

#SPJ2

Answer:

x = √130

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Equality Properties

Trigonometry

[Right Triangles Only] Pythagorean Theorem: a² + b² = c²

Step-by-step explanation:

Step 1: Define

Leg a = 9

Leg b = 7

Hypotenuse c = x

Step 2: Solve for x

Answer:

75%

Step-by-step explanation:

If 25 percent of a square is shaded, that means that the rest of the square is not shaded. We want an answer that we can add to 25 to get 100. So this means that 75% of the square is not shaded.

Answer:

Rhombus

Step-by-step explanation:

The diagonals of Rhombus bisect each other and form 4 right triangles. Since they are right triangles, they measure 90 degrees so the diagonals are perpendicular.

Answer:

y = -2x + 8

Step-by-step explanation:

(−6, 20) and (0, 8)

First you want to find the slope of the line that passes through these points. To find the slope of the line, we use the slope formula: (y₂ - y₁) / (x₂ - x₁)

Plug in these values:

(8 - 20) / (0 - (-6))

Simplify the parentheses.

= (-12) / (6)

Simplify the fraction.

-12/6

= -2

This is your slope. Plug this value into the standard slope-intercept equation of y = mx + b.

y = -2x + b

To find b, we want to plug in a value that we know is on this line: in this case, I will use the second point (0, 8). Plug in the x and y values into the x and y of the standard equation.

8 = -2(0) + b

To find b, multiply the slope and the input of x(0)

8 = 0 + b

b = 8

Plug this into your standard equation.

y = -2x + 8

This is your equation.

Check this by plugging in the other point you have not checked yet (-6, 20).

y = -2x + 8

20 = -2(-6) + 8

20 = 12 + 8

20 = 20

Your equation is correct.

Hope this helps!

3 and 4 is the lcd

lcd means least common factor

simpleest it ¾ the answer

Answer:

3/4 hope its helpssssssss

Answer:

Divide the first number of the dividend (or the two first numbers if the previous step took another digit) by the first digit of the divisor. Write the result of this division in the space of the quotient. Multiply the digit of the quotient by the divisor, write the result beneath the dividend and subtract it.Jun

Step-by-step explanation:

pls brainlist

Answer:

8 1/2

2 19/36

1 9/10

23/42

Answer:

1.75

Step-by-step explanation:

-2b+6 = 2.5

-2b = 2.5-6

-2b = -3.5

b = -3.5 \ -2

b = 1.75

Answer:

can you ask the qustion better plz

Step-by-step explanation:

Answer:

12b - 5. = 3

+5 +5

12b = 8

÷12. ÷12

b = 0.6

Answer:

1. x = 22

2. x = 38

3. x = 24

Step-by-step explanation:

Uhhhhhh

Answer:

120 in²

Step-by-step explanation:

rectangle = 16x4=64

two triangles 1/2(8)(7)=28 each

64+28+28=120

Answer:

88

Step-by-step explanation:

Starting off with 16x4, which isolates the triangle and makes it a little bit easier, you'd get 64, which is the rectangle's area, (I got the 4 from the middle piece). That leaves you with the triangle, which I did 3x8 for, which is 24, usually with triangles you would divide that answer in half because a triangle is only half of the actual area, but since they're two identical triangles, it wasn't necessary.

Answer:

I think its 3 hours

Step-by-step

also I think its the last one

Answer:

234 student don’t ride the bus

Step-by-step explanation:

jst do 0.85 tiimes 1560

Answer:

234

Step-by-step explanation:

85% of 1,560 = 1326

1,326 - 1,560 = 234

Answer:

b- x=5

Step-by-step explanation:

14-5=8 so your answer would be b

Answer:

78

Step-by-step explanation:

4 x 7 = 28

5 x 10 = 50

50 + 28 = 78

Answer:

62.4

Step-by-step explanation:

Answer:

There are 60 girls and 40 boys in the class.

Step-by-step explanation:

Given that the mean weight of 100 students in a certain class is 71kg, while the mean weight of boys is 65kg and that of girls is 75kg, to determine what is the number of boys and girls the following calculation must be performed:

1 x 75 + 0 x 65 + 75

0.9 x 75 + 0.1 x 65 = 74

0.8 x 75 + 0.2 x 65 = 73

0.7 x 75 + 0.3 x 65 = 72

0.6 x 75 + 0.4 x 65 = 71

Thus, there are 60 girls and 40 boys in the class.

Answer:

200 or 2 I guess

Step-by-step explanation:

Ion really get wym by “ what is the face”

Answer:

percentage is a number or ratio expressed as a fraction of 100.

Step-by-step explanation:

Answer:

[tex]14z[/tex]

Step-by-step explanation:

Since these are like-terms, they can be added together.

7z + 7z = 14z

Answer:

addition

Step-by-step explanation:

Answer:

Addition

Step-by-step explanation:

PEMDAS: Parentheses, Exponent, Multiply, Divide, Add, Subtract. (The multiply and divide can be swapped, as well as the add and subtract :3) Hope this helps! :D

Answer:

24.63 meters

Step-by-step explanation:

Answer:

y=70x+12

Step-by-step explanation:

y= amount of total money spent

x= amount of hours

Answer:

The answer is 4/5

Step-by-step explanation:

Simplify the expression.

Hoped this helped!

Brainly, please?

Answer: 4/5

Step-by-step explanation: 8n/10n

8/10

4/5