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lesya [120]
2 years ago
10

If the needle below is spun twice and the letters are recorded both times , which of the following would be the probability it w

ould land on letters A and C (in either order)?
(1) 1/3
(2)2/3
(3)2/9
(4)5/6|
Mathematics
1 answer:
ANTONII [103]2 years ago
4 0
2/3 is the correct answer
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please help I'm actually crying! Find A and B if the graph of Ax + By = 7 passes through (2,1) and is parallel to the graph of 2
Eddi Din [679]

Answer:

awwww dont cry. i know this isnt helpful but if it makes u feel better, im stuck on it too. Take a deep breath and hope someone will come and help us, <3

Step-by-step explanation:

4 0
2 years ago
You use 240 cubic inches of clay to make a sculpture shaped as a rectangular prism. The width is 4 inches less than the length a
murzikaleks [220]

Answer:

L: 6

W: 2

H: 20

Step-by-step explanation:

First, we need to know the expression to calculate the volume of rectangular prism which is:

V = L * W * H

The only thing we know is that the volume is 240 in³ and that the width is 4in less than length, the height is 2 in more than 3 times length. So, everything is set in function of the length, therefore, we'll call L = x and then solve for x

L = x

W = x - 4

H = 3x + 2

Let's replace the data in the formula of volume:

240 = x * (x - 4) * (3x + 2)

240 = (x² - 4x)(3x + 2)

Solving this we have:

240 = 3x³ - 10x² - 8x

Rearranging the equation:

3x³ - 10x² - 8x - 240 = 0

Now, in order to solve this, we need to factorize the left side:

3x³ - 18x² + 8x² - 48x + 40x - 240 = 0

3x²(x - 6) + 8x(x - 6) + 40(x - 6) = 0

(x - 6)(3x² + 8x + 40) = 0

Now that we have this, we can solve the value of x.

x1 -----> x - 6 = 0 ---> x = 6

x2 ---> (3x² + 8x + 40) = 0

Δ = 8² - 4*3*40 = 64 - 480 = -416

This value of -416 means that it's not possible to get a real number as x (only the imaginary numbers), therefore the value of x should be 6

x = L = 6

With this value we can calculate W and H:

H = 6 - 2 = 4

W = (3*6) + 2 = 20

7 0
3 years ago
To hard for me to do need help please
siniylev [52]

Answer:

3(2)+6=12

Step-by-step explanation:

just replace x by 2

4 0
2 years ago
Read 2 more answers
A student is working on a project for which he records the revolutions per minute (rpm) for a small electric motor as he increas
Ber [7]

Answer:

See below ↓

Step-by-step explanation:

The relation is :

  • Let y = Motor Speed and x = Voltage
  • y = 25x

<u>Title</u> : Variation of Motor Speed with Applied Voltage

<u>x-axis label</u> : Voltage (volt)

<u>y-axis label</u> : Motor speed (rpm)

As it constantly varies with a value of x and they are not isolated data points, they should be connected with a line.

8 0
2 years ago
What is the solution of x - 13 =5
Igoryamba
If you're looking for x then it would be x=18 since you add 13 to both sides to have x alone
8 0
3 years ago
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