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2 years ago

Which equations are true?A: -x = -x + x + 0B: -x = 0 + (-x)C: None Of The Above

Mathematics

1 answer:

Leto [7]2 years ago

3 0

Answer: B
Explanation: if you look at A and try to combine like terms, you will add the -x on the right side the the one on the left, cancelling out the x on the left. then you have 0=x+0, and unless x=0, it is not true.
With B, when you add x to the -x, you cancel it out, giving you 0=0, which is true. hope it helps!

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3 years ago

2. The bottom of a ramp is placed 15 feet from the edge of a stage

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The slope of the ramp is 1.

Step-by-step explanation:

See the diagram attached.

Here, AC = 15 ft. and ED = 5 ft. while AE = 10 ft.

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Now, considering the right triangle Δ EDC, if $\theta$ is the inclination of the ramp, then $\tan \theta = \frac{ED}{EC} = \frac{5}{5} = 1$

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3 years ago

Decompose 7.846 and round to the nearest tenth and hundredths.

Nataliya [291]

7.846 decomposed is:

7 + 0.8 + 0.04 + 0.006

or, to see it more clearly:

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Rounded to the nearest tenth: 7.8
Rounded to the nearest hundredth: 7.85

I hope that's what you meant :)

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2 years ago

Which equations are true?A: -x = -x + x + 0B: -x = 0 + (-x)C: None Of The Above ​

Which equations are true?A: -x = -x + x + 0B: -x = 0 + (-x)C: None Of The Above