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poizon [28]
3 years ago
7

A number is randomly picked from this list: 2 4 5 7 6 8 10. find out the probability of picking an even number

Mathematics
1 answer:
salantis [7]3 years ago
8 0
There are 5 even numbers and 7 numbers total. So it would be 5/7 because that's how many even numbers there are out of those 7 numbers.
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Find the value of the greater root of x^2-6x+5=0
tia_tia [17]

Answer:

5

Step-by-step explanation:

the roots are:

\left \{ {{x_1+x_2=6} \atop {x_1*x_2=5}} \right.  \ => \ \left \{ {{x_1=1} \atop {x_2=5}} \right.

6 0
3 years ago
The length of a rectangle is 4 less than 3 time the width. What is the area of the rectangle?
Talja [164]

Use the quations 2L + 2W = Area

and L = 3W -4

Plug the second equation into the first and solve for W

2(3W-4) + 2W = A

6W - 8 + 2W= A

8W - 8 = A

8W = 8

W = 1

Then plug that into the second equation

L = 3(1) -4

L = 3 -4

L = -1

Then plug both of the answers into the first equation

2(-1) + 2(1) = A

-2 + 2 = A

0 = A

That should be the answer, but since there was no given Area, i'm not sure.

I hope this helped though!

6 0
3 years ago
5h/4 , for h = -8 i need in a sentence
never [62]

Answer:

5*(-8)/4 = -10

Step-by-step explanation:

If h equals -8 the answer is -10

8 0
3 years ago
There are 15 rolls of film in a box and 3 are defective. Two rolls are to be selected, one after the other. What is the probabil
dem82 [27]
<h2>Answer:</h2><h2>The probability of selecting a defective roll followed by another defective roll = \frac{1}{35}</h2>

Step-by-step explanation:

The total number of rolls in a box = 15

The number of defective items = 3

Two rolls are to be selected, one after the other. The probability of selecting a defective roll followed by another defective roll = ?

The probability that the first roll is detective = \frac{3}{15}

The probability that the second roll is detective = \frac{2}{14}

Required probability = (\frac{3}{15} ) (\frac{2}{14} )

= \frac{1}{35}

7 0
2 years ago
What is the volume of the pyramid in cubic millimeters? a rectangular pyramid with a base of 21 millimeters by 18 millimeters an
grandymaker [24]

The volume of the rectangular pyramid with the given dimensions is: 1,890 cubic millimeters.

<h3>What is the Volume of a Rectangular Pyramid?</h3>

Volume of rectangular pyramid = 1/3(length × width × height)

Given the following:

  • Length = 21 mm
  • Width = 18 mm
  • Height = 15 mm

Volume of the rectangular pyramid = 1/3(21 × 18 × 15)

Volume of rectangular pyramid = 1,890 cubic millimeters.

Learn more about volume of rectangular pyramid on:

brainly.com/question/924442

#SPJ4

8 0
2 years ago
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