A bag contains 4 blue, 4 red, and 4 green marbles. Four marbles are drawn at random from the bag. How many different samples are possible which include exactly two red marbles?

Answers

Answer 1

Answer: you make a tree diagram to find the possible outcomes, which there are 81 possible outcomes, 24 of which have exactly 2 red in them.

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90 is 50% of what number? Answer choices are 45, 120, ,180
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Jake wants to enlarge his 12-foot by 14-foot garden. If he multiplies the dimensions by 2, how will the area of the garden be affected?

Answers

Area = L*W
Original Area = 12*14 = 168
Multiply the dimensions by 2 = 12*2 = 24 and 14*2 = 28
New Area = 24 *28 = 672

New Area divided by original area = 672/168 = 4

The garden will be 4 times bigger in area

Factor: 36x^2-64

thanks!

Answers

Answer:

4(3x+4)(3x-4)

Step-by-step explanation:

4(9x^2-16)

Answer:

4(3x−4)(3x+4)

Step-by-step explanation:

For the first 4 class periods of day, Lewis has science history, math, and English, but not necessarily in that order. He does not have science or hist first period. He does not have math, English, or science second period. He does have math or science third second period. What is Lewis' schedule for the first four periods? A- Math, history, science, English
B- Math, history, English, science
C- Science, history, math, English
D- English, history, math, science

Answers

Answer:

A. seems to be the BEST choice from the information you have provided.

Answer:

A is the most practical answer with the info you have given

Step-by-step explanation:

Fifty pounds of a cement-and-sand mixture is 40% sand.How many pounds of sand must be added for the resulting mixture to be 60% sand?

Answers

To get the answer you would have to multiply fifty by .4 to get 20. now you know that 20 is 2/5 of the bad and 1/5 must be 10. So you would multiply 10 by 3 to get to 3/5 so you can have 60%. The final answer is 30

Find the roots of the polynomial equation -x^3+5x^2 - 11x+55=0

Answers

  x³ + 5x² - 11x + 55 = 0
x²(x) + x²(5) - 11(x) - 11(5) = 0
  (x²(x + 5) - 11(x + 5) = 0
(x² - 11)(x + 5) = 0
x² - 11 = 0     or        x + 5 = 0
+ 11 + 11 - 5 - 5
x² = 11 or x = -5
  x = ±√(11) or x = -5

THere are three roots in the polynomial equation.

At a carnival, food tickets cost $2 each and ride tickets cost $3 each. A total of $1,240 was collected at the carnival. The number of food tickets sold was 10 less than twice the number of ride tickets sold.The system of equations represents x, the number of food tickets sold, and y, the number of ride tickets sold.

2x + 3y = 1240

x = 2y – 10

How many of each type of ticket were sold?

180 food tickets and 293 ride tickets
180 food tickets and 350 ride tickets
293 food tickets and 180 ride tickets
350 food tickets and 180 ride tickets

Answers

The number of food tickets sold is 180 and ride tickets is 350.

In order to determine how many of each type of ticket was sold, the two equations given have to be solved simultaneously using the substitution method.

2x + 3y = 1240 equation 1

x = 2y – 10 equation 2

Substitute for x in equation 1

2(2y -10) + 3y = 1240

4y - 20 + 3y = 1240

Combine similar terms

7y = 1240 + 20

7y = 1260

Divide both sides of the equation by 7

y = 1260 / 7

y = 180

Substitute for y in equation 1

2x + 3(180) = 1240

2x + 540 = 1240

2x = 1240 - 540

2x = 700

x = 700 / 2

x = 350

To learn more about simultaneous equations, please check: brainly.com/question/25875552

Answer:

180 food tickets and 350 ride tickets

Step-by-step explanation:

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Solve z2 – 15z + 56 = 0 using the zero product property. A. z = –5, –2 B. z = 8, 7 C. z = –4, 7 D. z = 8, –4

There are 5 performers who will present their comedy acts this weekend at a comedy club. One of the performers insists on being the first stand-up comedy of the evening. If this performer's request is granted, how many different ways are there to schedule the appearances?

Which set of ordered pairs (x, y) could represent a linear function?A = {(-6,3), (-3,0), (0, -3), (3,-5)}B= Y(-1,2), (2, 1), (5,0), (8, -1)}C = {(-4,-7), (-1, -3), (2.0), (5,3)}D = {(-5, -8), (-2,-4), (1,1), (4,6)}