Round 429 to the nearest hundred

Mathematics

2 answers:

umka2103 [35]3 years ago

7 0

400 because 429 is closer to 400 instead of 500

Reil [10]3 years ago

5 0

Answer:

400

Step-by-step explanation:

429 is closest to 400 on the number line so it would be 400

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Natalka [10]

Answer: D

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Step-by-step explanation:

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3 years ago

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4 years ago

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These are two similar triangles.<br> What does x equal?

tangare [24]

Answer:

112

Step-by-step explanation:

So, we know that a triangle's sides must add up to have a sum of 180. If you add up your given lengths and you should get 47, not including x. Then if you look at the left side/the one without a given length and it should be identical to the 21, so you know that side is 21. So now add 21 to 47, you should get 68. Finally, you subtract 68 from 180 like this: 180-68, and it should equal 112. So you're answer is 112.

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3 years ago

The vertex of a parabola is ( 3, -1). One point on the parabola is

Rudik [331]

Answer:

Step-by-step explanation:

If you plot the vertex and the point, you see that the point is above the vertex. Therefore, this is a positive parabola with the work form of

$y=a(x-h)^2+k$

We have values for x, y, h, and k. Let's write the equation of the parabola, put it into function notation, then find another x value at which to evaluate it.

$8=a(6-3)^2-1$ and

$8=a(3)^2-1$ and

8 = 9a - 1 and

9 = 9a so

a = 1. The equation of the parabola in function notation is

$f(x)=(x-3)^2-1$

Since the vertex is at (3, -1) it would make sense to evaluate the function at x values close to the vertex. Let's evaluate the function at an x value of 4:

$f(4)=(4-3)^2-1$ and