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3 years ago

Please help me!!!!!!!!!!!!!!

Mathematics

1 answer:

9966 [12]3 years ago

8 0

Answer:

See below

Step-by-step explanation:

I can't draw it for you so here are the points. Draw your triangle with them.

From the original triangle, to rotate 180 degrees around the origin, just imagine your are flipping your computer screen upside down which is 180 degrees. To get the coordinates for the points, just make each x and y value the opposite of what the origin is.

Original points ( 2, 1 ) ( 5, -2 ) ( 3, -4 )

Rotated points ( -2, -1 ) ( -5, 2 ) ( -3, 4 )

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Please tell me where i went wrong

Nimfa-mama [501]

Where at the 39/19? or when you were trying to reduce 21/19

8 0

4 years ago

2. The graph represents the amount

dexar [7]

Answer:

Slope: -3/2

With the question, we can determine that the slope with two points: (0,13.5) and (9,0). To calculate use the equation $\frac{y2-y1}{x2-x1}$ and get $\frac{0-13.5}{9-0} =\frac{-13.5}{9} =\frac{-3}{2}$

This slope means that the water is decreasing at a rate of 3/2 gallons per minute.

6 0

2 years ago

Is this correct? The answer I picked was the only one that had no limit. If I did it correctly the other choices limit was zero.

andriy [413]

Step-by-step explanation:

These are all examples of p-series:

∑(1 / nᵖ), where p>0.

If p > 1, the series converges. If 0 < p ≤ 1, the series diverges.

First option:

∑(1/n⁵)

Here, p = 5. Since 5 > 1, the series converges.

Second option:

∑((√n+3)/n³)

∑((√n)/n³) + ∑(3/n³)

∑(1/n^2.5) + 3 ∑(1/n³)

In the first sum, p = 2.5. In the second sum, p = 3. Both are greater than 1, so the series converges.

Third option:

∑((n−4)/(n⁴√n))

∑(1/(n³√n)) − ∑(4/(n⁴√n))

∑(1/n^3.5) − 4 ∑(1/n^4.5)

In the first sum, p = 3.5. In the second sum, p = 4.5. Both are greater than 1, so the series converges.

Fourth option:

∑(1/∛n)

∑(1/n^⅓)

Here, p = ⅓. This is less than 1, so the series diverges.

Note: if a series is converging, then the limit is 0.

However, if the limit of a series is 0, it does not necessarily mean that series is converging.

Here, the limit of all 4 options is 0. However, the fourth option is a diverging series.

6 0

4 years ago

I need help plsss anyone!! At least answer one of them!! U get points

igor_vitrenko [27]

what is the question.......

4 0

3 years ago

A college-entrance exam is designed so that scores are normally distributed with a mean of 500 and a standard deviation of 100.

Crank

Answer: 1.25

Step-by-step explanation:

Given: A college-entrance exam is designed so that scores are normally distributed with a mean $(\mu)$ = 500 and a standard deviation $(\sigma)$ = 100.

A z-score measures how many standard deviations a given measurement deviates from the mean.

Let Y be a random variable that denotes the scores in the exam.

Formula for z-score = $\dfrac{Y-\mu}{\sigma}$

Z-score = $\dfrac{625-500}{100}$

⇒ Z-score = $\dfrac{125}{100}$

⇒Z-score =1.25

Therefore , the required z-score = 1.25

6 0

3 years ago