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fredd [130]
3 years ago
12

Solve for x. 2/5x=6/5 A. 12/25 B. 12/5 C. 3 D. 6

Mathematics
1 answer:
arsen [322]3 years ago
5 0

Answer:

C. 3

Step-by-step explanation:

2/5 x = 6/5

Multiply each side by 5/2 to isolate x

5/2 * 2/5 x = 6/5 * 5/2

x = 6/2

x=3

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A 10 kilogram object suspended from the end of a vertically hanging spring stretches the spring 9.8 centimeters. At time t
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Full Question

A 10 kilogram object suspended from the end of a vertically hanging spring stretches the spring 9.8 centimeters. At time t = 0, the resulting mass—spring system is disturbed from its rest state by the force F (t) = 20 cos(8t). The force F (t) is expressed in Newtons and is positive in the downward direction, and time is measured in seconds.

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Answer:

Spring Constant = 1000Nm^-1

Step-by-step explanation:

Given

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garik1379 [7]

Answer:

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Step-by-step explanation:

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_____

<em>Comment on the question and answer</em>

Your description "on the circle between points Q and N" is ambiguous. You used the same description for both points P and R. The interpretation we used is shown in the attachment. If point P is on the long arc NQ, then the measure of arc QPN will be the difference between 148° and 360°, hence 212°. You need to choose the answer that matches the diagram you have.

__

We call angle QNT an "inscribed angle" because it is a degenerate case of an inscribed angle. The usual case has the vertex of the angle separate from the ends of the arc it intercepts. In the case of a tangent meeting a chord, the vertex is coincident with one of the ends of the intercepted arc. The relation between angle measure and arc measure remains the same: 1 : 2.

7 0
3 years ago
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