A bag of marbles contains 4 red
marbles, 5 green marbles, and 3
blue marbles. Karen takes a marble out, replaces it
and pulls out another marble,
what is the probability both
marbles are red?

Answer:

Step-by-step explanation:

Put x = 4, y = -5 and z = 2 to the expression 3x² - 4y + xz and use PEMDAS:

3(4)² - 4(-5) + (4)(2)

= 3(16) + 20 + 8

= 48 + 20 + 8

= 76

Answer:

44

Step-by-step explanation:

Alright let’s do this!

Expression: 5x^2 - 3y and x = 4, y = 12

First let’s plug in the missing values of x and y!

5(4)^2 - 3(12)

Then, get rid of exponent! From this point forward follow PEMDAS

5(16) - 3(12)

80 - 36 =

44

And there you go! Hope I helped, Good Luck! :)

Answer:

Step-by-step explanation:

3 x 2 = 6

Answer:

D. The diameter is 6 feet

Step-by-step explanation:

Steps:

1. Find the formula: 2*radius

2. Plug in the numbers: 2*3

3. Solve: 2*3 = 6 feet

Volume = ( 4 × 3 × 6 ) + ( 3 × 3 × 5 )

Volume = 72 + 45

Volume = 117 mm^3

The least number of patties and buns possible is 4.

Given that, Burger patties come packed 8 in a package, and burger buns come packed 12 in a package.

The least common multiple is also known as LCM (or) the lowest common multiple in math. The least common multiple of two or more numbers is the smallest number among all common multiples of the given numbers.

The factors of 8 and 12 are given below:

8 = 2 × 2 × 2

12 = 2 × 2 × 3

LCM of 8 and 12 is 2 × 2 = 4

Therefore, the least number of patties and buns possible is 4.

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Answer:

c and d

Step-by-step explanation:

Answer:

its the second and last one

Step-by-step explanation:

Answer:

I think the answer might be true

Step-by-step explanation:

Supplementary angles add up to 180 degrees. When the angles are placed next to each other, they should add up to 180. Let's try it... 130+50 = 180. Therefore, these angles are supplementary.

Also, for extra help, 180-degree angles make a straight line, like this one. When you get stuck, you can always refer to websites such as Khan Academy for practice and explanations. (https://www.khanacademy.org)

Sorry for the wordy explanation, but I hope I helped :)

Answer:

4 faces and im pretty sure 4 edges but it could be 3

Step-by-step explanation:

Hope this helps

Answer:

Angle 1: 65°

Angle 2: 65°

Angle 3: 50°

Step-by-step explanation:

The sum of 3 angles in a triangle should always be 180°. If it is not 180° all together then it isn't a triangle. So I did 180-50=130 and 130÷2=65 so I chose 65°

Answer:

The area is pie times radius^2

The diameter is 2 times radius

The circumference is 2 times pie times radius or pie times diameter

Step-by-step explanation:

Answer:

Diameter is C.

Circumference is A.

Area is B.

Step-by-step explanation:

There is no explanation these are just simple formulas

Answer: The answer is 9/30.

Step-by-step explanation:

The total of the number of DVDs is 30. The number of western DVDs is 9. This forms a proportion for probability which is 9/30.

Answer:

E = 700c + 100 and 21 cars

Step-by-step explanation:

Let c be the number of cars that Amy sells. The initial salary that Amy gets is 100, no matter how many cars that Amy sells. However, she also makes 700 dollars for every car she sells, or c. Therefore, we have the equation:

E = 700c + 100

with E representing how much money Amy gets. We use this equation for part B. She must make 14800 dollars, which we substitute for E, because that is how much she makes. Therefore, we have:

14800 = 700c + 100.

We solve this equation and get c = 21, so Amy has to sell 21 cars.

Answer:

To earn a total of $14,800 Amy would need to sell 21 cars (Read explanation for equation)

Step-by-step explanation:

$700 per sale of 1 car

$100 Bonus (1 time)

c=Cars

E=Earned

Equation:    E=(700•c) +100

To find how many cars amy would need to sell to reach 14,800, Replace "E" With 14800

14800 = (700•c) +100

Step by step in photo

Answer:

y=7x-7

I’m pretty sure math not my best subject sorry if I was wrong

Step-by-step explanation:

Answer:

the sum of all the areas of all the shapes that cover the surface of the object

1/2 X (b1+b2) X h

2 pair of sides parallel only; if other two it becomes a parallelogram; if other two are same length _isosceles trapezoid(like isosceles triangle with two sides same length)

Step-by-step explanation:

Answer:

7. y=1/4x

8. 3 3/4

Hope this helps!

Step-by-step explanation:

Answer:Since the volume of a cylinder formula involves the radius, you can solve for the radius and double it to find the diameter.

Write the formula. Volume=π⋅radius2⋅height.

Substitute the dimensions of the shape into the formula. Use 3.14 as the value for π. 791.28=3.14⋅r2⋅28.

Solve the equation for the variable.

Step-by-step explanation:

Answer: Since the volume of a cylinder formula involves the radius, you can solve for the radius and double it to find the diameter.

Write the formula. Volume=π⋅radius2⋅height.

Substitute the dimensions of the shape into the formula. Use 3.14 as the value for π. 791.28=3.14⋅r2⋅28.

Solve the equation for the variable.

Step-by-step explanation:

Answer:

1.120

Step-by-step explanation:

going from small to large milli is 10^-3 L

Answer: 120 is the answer

Step-by-step explanation:

Answer:

412in

Step-by-step explanation:

Answer:D

Step-by-step explanation:

Answer:

nice question but I don't know the answer

The simplest form of (4a + 8b) / 12 is (a + 2b) / 3.

Given is an expression (4a + 8b) / 12, we need to simplify it in simpler form,

To simplify the expression (4a + 8b) / 12, you can divide both the numerator and the denominator by their greatest common divisor (GCD) to reduce the fraction to its simplest form.

First, let's find the GCD of 4 and 12. The factors of 4 are 1, 2, and 4, and the factors of 12 are 1, 2, 3, 4, 6, and 12.

The largest number that appears in both sets of factors is 4, so the GCD of 4 and 12 is 4.

Dividing both the numerator and the denominator by 4, we get:

(4a + 8b) / 12 = (4(a + 2b)) / (4 x 3)

Canceling out the common factor of 4:

(4(a + 2b)) / (4 x 3) = (a + 2b) / 3

Therefore, the simplest form of (4a + 8b) / 12 is (a + 2b) / 3.

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Complete question =

What is the simplest form of 4a+8b over 12

Answer:

m = 55

Step-by-step explanation:

180° - 125° = 55°

I hope this will be helpful

Answer:

SO is this a question????????????????/

Step-by-step explanation:

This is kinda confusing :/

Answer:

Step-by-step explanation:

that would be the anwer

Answer: yes

Step-by-step explanation:

2/3(3/4x-3/2)

reduce the numbers and get

1/2x-1

Answer:

[tex] \huge \colorbox{yellow}{ \sf{4.9}}[/tex]

Step-by-step explanation:

see below how to convert this mixed number to a decimal:

devide numerator (9) by the denominator (10) :

[tex] \sf{9 \div 10 = 0.9}[/tex]

add this value to the integer part :

[tex] \sf{4 + 0.9 = 4.9 \: so..}[/tex]

[tex] \sf{4 \ \frac{9}{10}}{ \boxed{ = 4.9}}[/tex]