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irina1246 [14]
3 years ago
5

What is -3x - 5 = 10 ​

Mathematics
1 answer:
Stella [2.4K]3 years ago
4 0

Answer:

x = -5

Step-by-step explanation:

Im pretty sure its -5 if it's not im sorry!

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Answer:

top one

Step-by-step explanation:

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A local park is adding a new 14 ft long slide to the playground. The vertical height of the slide is h. The
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A.
   h = 14 ft · sin 30° = 14 ft · 0.5 = 7 ft.
b.
   From the bottom of the height to the bottom of the slide:
   y² = 14² - 7² = 196 - 49 = 147
   y = √147 = 12.12 ft
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Determine whether the linear expressions are equivalent:3(4x + 2) and 2(6x + 3)Show all work. Explain why they are equivalent or
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3(4x+2)
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2(6x+3)
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3 years ago
Help for number 1 through 4
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3 years ago
A taut string of length 10 inches is plucked at the center. The vibration travels along the string at a constant rate of c inche
Mademuasel [1]

Answer:

The correct option is

A.  \ \dfrac{1}{c} \times \left | x - 5 \right | = 0.3

Step-by-step explanation:

The parameters given are;

The length of the string = 10 inches

The speed or rate of travel of the wave = c inches per millisecond

The position on the string from the left-most end = x

The time duration of motion of the vibration to reach x= 0.3 milliseconds

The distance covered = Speed × Time = c×0.3

Given that the string is plucked at the middle, with the vibration travelling in both directions, the point after 0.3 millisecond is x where we have;

The location on the string where it is plucked = center of the string = 10/2 = 5 inches

Distance from point of the string being plucked (the center of the string) to the left-most end = 5 inches

Therefore, on the left side of the center of the string we have;

The distance from the location of the vibration x (measured from the left most end) to the center of the string = 5 - x = -(x -5)

On the right side of the center, the distance from x is -(5 - x) = x - 5

Therefore, the the equation that can be used to find the location of the vibration after 0.3 milliseconds is \dfrac{1}{c} \times \left | x - 5 \right | = 0.3 or \left | x - 5 \right | = 0.3 \times c which gives the correct option as A

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