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Anna [14]
4 years ago
7

How many 4 minutes and 30 seconds in 2 hours

Mathematics
2 answers:
AleksAgata [21]4 years ago
7 0

4 minutes and 30 seconds go into 2 hours 26 times

119

antiseptic1488 [7]4 years ago
4 0
There are 120.5 in 2 hours
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The rotor of an electric motor has rotational inertia Im = 7.17 x 10-3 kg·m2 about its central axis. The motor is used to change
DIA [1.3K]

Answer:

the number of revolutions of the rotor required to turn the probe through 44.1° about its central axis is approximately 117 revolution.

Step-by-step explanation:

From the conservation of angular momentum of the motor

Ip× theta p = Im × theta m

Where IP = 6.84 is the rotational inertia of the probe along it central axis

Theta p= 44.1°, Im = 7.17 ×10^-3 is the rotational inertia of the electric motor about it central axis.

Ip× theta p = Im × theta m

6.84 × 44.1 = 0.00717 × theta m

301.644 = 0.00717 × theta m

Theta m= 301.644 /0.00717

= 42,070.3°

Number of revolution =42,070.3°/360

= 117 revolution

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3 years ago
2x+9y=27<br> x-3y=-24<br> It’s substitution
harkovskaia [24]

Answer:

x = -9, y = 5

Step-by-step explanation:

Since we need to solve this system of linear equations by substitution, let's transform the second equation into the form, x = ay + b. We start off with x - 3y = -24, subtract 3y from both sides, and we get x = 3y - 24. Then, substitute the expression 3y - 24 for y in 2x + 9y = 27.

2(3y - 24) + 9y = 27    Substitute 3y - 24 for x.  

6y - 48 + 9y = 27        Distribute 2.

15y = 75                      Add & subtract to combine the like terms.

y = 5                            Divide by 15.

Now that we have the value of y, we can find x by substituting 5 for y in any of the equations. Let's use 2x + 9y = 27 for example.

2x + 9(5) = 27             Substitute 5 for y.

2x + 45 = 27               Multiply.

2x = -18                       Subtract.

x = -9                          Divide by 2.

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2 years ago
Which of the following discrete random variables could be represented by a
marishachu [46]

Answer: The outcome of spinning a spinner with five equal outcomes

Step-by-step explanation:

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3 years ago
What is the coordinate of the image A(8, -1) after the following translation? ⟨-6,1⟩
lbvjy [14]
(2,0)

Just do 8-6 which should equal 2 for your x coordinate
And 1-1 cancels out leaving you with 0 for your y coordinate


Brainlist answer please?
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How to graph y is greater than or equal to 3/2 x subtracted by 2
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y goes up x goes side look at the side with the 3 and 2 and line it up as a fraction

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