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makkiz [27]
3 years ago
13

Solve 7x – 9 = 28 + 4(x – 1).

Mathematics
1 answer:
lidiya [134]3 years ago
7 0
7x - 9 = 28 + 4x - 4
7x - 4x = 28 - 4 + 9
3x = 33
x = 11
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A ramp with a one meter distance from edge to edge reaches a height of 0.643 meters. What is the value of the acute angle?
natita [175]

The value of the acute angle is 40°

Step-by-step explanation:

Let the angle be 'θ'

Length of the ramp = 1 m

Height = 0.643 m

To find :

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we can use sine to find the angle of elevation.

sin θ = 0.643/1

sin θ = 0.643

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3 years ago
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Afina-wow [57]

Answer:

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Step-by-step explanation:

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Therefore,

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4 0
2 years ago
What is the answer to this math problem
pishuonlain [190]

Answer:

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"All numbers" means x or y can be any number, decimal decimal numbers. "Whole numbers" mean x or y can only be numbers that don't have decimals.

Both x and y can be decimal numbers because the graph is not broken up. If it could only be whole numbers, the graph would be dots.

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Step-by-step explanation:

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2 years ago
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Step by step explanation This is how I got the answer to your question and I gave you the solution I hope this helps you out
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