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Anestetic [448]
3 years ago
14

In a certain Algebra 2 class of 30 students, 7 of them play basketball and 15 of them

Mathematics
1 answer:
kobusy [5.1K]3 years ago
8 0

<u>Answer:</u>

<h2>P=2/3</h2>

<u>Explanation:</u>

since there are 10 students who play neither sport over 30, this means 20 students play basketball or baseball or both! <em>(among them 2 students who play both basketball and baseball)</em>

∴ the probability that a student chosen randomly from the class plays basketball or baseball is 20/30 and that equals 2/3 or 66.66%

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16 cabins
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Then,
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(96x92=$8,832)
$8,832
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3 years ago
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10 points! help me! <br> please! its only 1 question
Ilia_Sergeevich [38]
The correct answer is number three, or number C however you like to state it
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3 years ago
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Find the solution to the system of equations,x+3y and 2x+4y=8
Sati [7]

Answer:

x = -7/3y + 8/3

y = -3/7x + 8/7

Step-by-step explanation:

First, set the equations next to each other to find x and y, I'll start with x:

x + 3y + 2x + 4y = 8

Combine like terms

3x + 7y = 8

Subtract both sides by 7y

3x + 7y - 7y = 8 - 7y

3x = 8 - 7y

I'll re-order the equation to make it easier to divide

3x = -7y + 8

Divide both sides by 3

3x / 3 = -7y + 8 /3

x = -7/3y + 8/3

If you need decimals just divide with a calculator

Now to find y:

We already combined like terms so we don't need to do that again...

3x + 7y = 8

Subtract both sides by 3x

3x - 3x + 7y = 8 - 3x

7y = 8 - 3x

I'll reorder the equation once again so the variable comes first

7y = -3x + 8

Divide both sides by 7

7y / 7 = -3x + 8 / 7

y = -3/7x + 8/7

Again, use a calculator to divide completely for decimals.

6 0
3 years ago
If a = 4, b = 6 and C = -3, Find the values <br> of <br> 3ac<br> ____<br> B²-C²
madreJ [45]

The value of the expression 3ac - b² - c² is -61.

<h3>What is an expression?</h3>

Expression in maths is defined as the collection of the numbers variables and functions by using signs like addition, subtraction, multiplication, and division.

Numbers (constants), variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbols, which can also be used to indicate the logical syntax's order of operations and other features.

The expression will be solved as below:-

3ac - b² - c² =  ( 3 x 4 x -3 ) - ( 4 )² - ( -3 )²

                    =   ( -36 - 16 - 9 )

                    =   ( -61 )

Therefore, the value of the expression 3ac - b² - c² is -61.

To know more about an expression follow

brainly.com/question/723406

#SPJ1

7 0
2 years ago
Through: (-1 , -4) and (-4, -1)
satela [25.4K]

Answer:

y=-x-5

Step-by-step explanation:

too lazy to explain it

3 0
3 years ago
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