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blagie [28]
2 years ago
6

ASAP PLEASE A box contains 6 red, 3 white, 2 green, and 1 black (in total 12) identical balls. What is the least number of balls

necessary to take out randomly (without looking) to be sure of getting at least one red ball?
Mathematics
1 answer:
docker41 [41]2 years ago
7 0

Answer:

7 is the least.

Step-by-step explanation:

Their are 12 balls, and 6 of them are red. if you are to pick every single ball except the red ones, you cut the number of balls in half, and are left with 6 red balls, and 6 balls picked. Your next pick <u>must</u> be a red ball, making <u>7 picks</u>.

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J2 + 7j + 12 = 0<br><br>CAN U PLEASE HELP ME!!! ​
natima [27]

Answer:

j = -3, -4

Step-by-step explanation:

j^2 + 7j + 12 = 0

(j + 3)(j + 4) = 0

j = -3, -4

3 0
3 years ago
Read 2 more answers
A factorial experiment was designed to test for any significant differences in the time needed to perform English to foreign lan
yuradex [85]

Answer:

For main effects

Factor (Language translator) confirms that there is no significance difference between two levels of language translator of main effect at 5% level of significance.

Factor (Types of language) confirms that there is no significance difference between three levels of types of language at 5% level of significance.

also,

For interaction effect between language translator and types of language, there is no significant difference that the interaction between language translator and types of language at 5% level of significance.

Step-by-step explanation:

see attached.

3 0
3 years ago
A right rectangular prism has a length of 2 1/2 feet, a width of 3 feet,and a height of 1 1/2 feet. Unit cubes with side lengths
Illusion [34]
The statement "unit cubes with side lengths of 1/2 foot are added to fill the prism with no space remaining" is useless information so you can disregard that. All you need to know to calculate the volume is the length, width, and height.

Volume = length x width x height
Volume = (5/2) x 3 x 11/2
Volume = 15/2 x 11/2
Volume = 165/4
Volume = 41.25 ft cubed
7 0
3 years ago
Twice the sum of x and 5
SIZIF [17.4K]
I believe it would be x+5^2
3 0
3 years ago
Read 2 more answers
Mia is calculating the volume of the cylinder below using the following work. A cylinder with height of 47 meters and diameter o
inn [45]

Mia’s first error was " she forgot to multiply π by (17.5)²(47) "

Step-by-step explanation:

The formula of the volume of a cylinder is V = π r² h, where

  • r is the radius of the base of the cylinder
  • h is the height of the cylinder

∵ The diameter of the base of the cylinder is 35 meters

∵ The radius = \frac{1}{2} × diameter

∴ The radius = \frac{1}{2} × 35 = 17.5 meters

∴ r = 17.5

∵ The height of the cylinder = 47 meters

∴ h = 47

- Substitute r and h in the formula of the volume

∴ V = π (17.5)²(47)

∵ Mai's first step is V = (17.5)²(47)

- She forgot to put π

∴ Her first error is she forgot to multiply π by (17.5)²(47)

Mia’s first error was " she forgot to multiply π by (17.5)²(47) "

Learn more:

You can learn more about the volume in brainly.com/question/6443737

#LearnwithBrainly

3 0
3 years ago
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