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xz_007 [3.2K]
2 years ago
7

-formula">
Mathematics
1 answer:
Gnesinka [82]2 years ago
4 0
It depends, what does a mean? If you know just add what a means to 3 then subtract 4.
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A bag contains 6 red balls and 3 blue balls. 4 balls are selected at random. find the probability of selecting 4 red balls.
geniusboy [140]
Assuming that the balls are not replaced; 

\frac{6}{9}* \frac{5}{8}* \frac{4}{7}* \frac{3}{6}= 5/42 

(the numbers are decreasing in the denominator as you are presumably taking out the red balls. In the denominator, there is one less ball each time since you took out a red one). 

Therefore, the probability of selected 4 red balls consecutively without replacement is 5/42. 

Hope I Helped :) 

4 0
3 years ago
When graphing the inequality y > 3x + 4, you will use a solid line iristead of a dotted line-
Alexus [3.1K]

Answer:

true

Step-by-step explanation:

7 0
2 years ago
Evaluate the step function for the given input values. g(x) = g(2) = g(–2) = g(5) =
romanna [79]

Answer:

Step-by-step explanation:

g(2) = g(–2) = g(5) is never true for the step function.  One " = " symbol per pair of g values, please.

The step function, which you're calling "g(x)," is 0 from -infinity up to but not including 0.  It's 1 from x just greater than 0 through infinity.

Thus:

g(2) = 1 because x is greater than 0.

g(-2) = 0 because x is less than 0.

g(5) = 1 because x is greater than 0.

4 0
3 years ago
nu is designing a rectangular sandbox. the bottom is 16 square feet. which dimensions require the least amount of material for t
SCORPION-xisa [38]

Answer:

The least amount of dimensions would be using a 4ft x 4ft base.

Step-by-step explanation:

When looking to maximize area and minimize materials, a perfect square always does this. To prove the point, consider the 4 x 4 box in the answer to say a 16 x 1 box, which would have the same area.

The 4 x 4 box would have 4 sides each of 4 ft. Therefore, it would have 16 feet of sides to construct.

Meanwhile, there would be two sides on the other one that were 16 ft alone.

3 0
3 years ago
Solve each equation. Show your work, or explain your reasoning.<br> -3x + 5 = 16
Vesna [10]
-3x + 5 = 16

First, subtract 5 from both sides.

-3x = 11

Then, divide -3 by both sides.

x = -11/3 or -3.66....
8 0
3 years ago
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