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Vladimir79 [104]
3 years ago
11

Write this number in expanded form 2,015,473,

Mathematics
1 answer:
dezoksy [38]3 years ago
6 0
Two million,fifteen thousand,four hundred seventy three
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Answer:

The load weight is 2.29 N

Step-by-step explanation:

We note that  at equilibrium, the sum of the moment and the sum of forces about a point is zero, therefore, we have;

∑M =0

∑F = 0

The parameters given are;

The distance of the load from the hinge = 35 cm

The distance of the load from the spring balance = 15 cm

The applied force on the spring balance = 4 N↑

The direction of the applied force on the spring balance = Upwards

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The direction of the weight of the load = Downwards

We use downward negative and upward positive coefficients for the forces

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Sum of moments equals zero gives;

4 × (35 - 15) - W × 35 = 0

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The weight of the load = 2.29 N.

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3 years ago
Solve for t. d=−16t2+4t t=12±41−4d‾‾‾‾‾‾√ t=8±1−4d‾‾‾‾‾‾√ t=18±1−4d√8 t=12±41−4d√2
dangina [55]

Answer:

t=\dfrac{1}{8}\left(1\pm\sqrt{1-4d}\right)

Step-by-step explanation:

Rearranging your quadratic to standard form, you get ...

16t^2 -4t +d = 0

For the quadratic formula, you have ...

a = 16

b = -4

c = d

so the solution is ...

t=\dfrac{-b\pm\sqrt{b^2-4ac}}{2a}\\\\t=\dfrac{-(-4)\pm\sqrt{(-4)^2-4(16)(d)}}{2(16)}=\dfrac{4\pm 4\sqrt{1-4d}}{32}\\\\t=\dfrac{1}{8}\left(1\pm\sqrt{1-4d}\right)

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Answer:

A. Train A begins 1800 miles from Columbus while train B begins 1200 miles from Columbus

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Step-by-step explanation:

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