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Hitman42 [59]
3 years ago
6

2. Ross started walking his dog'at 3:15.

Mathematics
1 answer:
poizon [28]3 years ago
7 0

Answer:

It may be 3 : 45.

Step-by-step explanation:

Ross started walking his dog at 3 : 15 and finished before 4 : 00.

Therefore, there is a gap of 45 minutes between 3 : 15 and 4 : 00.

So, Ross walked with his dog for less than 45 minutes.

Therefore, Ross could have finished walking his dog at any time before 4 : 00 and it may be 3 : 45. (Answer)

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"If the P-value is smaller than the level of significance α, then the researcher should __________ at level α."
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The researcher should reject the null hypothesis at the significance level

Step-by-step explanation:

If the P-value is smaller than the significance level, the null hypothesis is rejected

If the P-value is the same as the significance level, the null hypothesis is rejected

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Which is a pair of dependent events?
pashok25 [27]

Answer:

Two events are dependent if the outcome of the first event affects the outcome of the second event, so that the probability is changed.

Step-by-step explanation:

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One diagonal of a parallelogram has endpoints (4,6) and (-3,-1) Its other diagonal has endpoints (-2,5) and (3,0) Which is the m
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Parallelograms are shapes with equal and parallel opposite sides

The most descriptive name for the quadrilateral is rhombus

<h3>How to name the quadrilateral</h3>

The endpoints of the diagonals are given as:

  • Endpoints 1: (4,6) and (-3,-1)
  • Endpoints 2: (-2,5) and (3,0)

Next, we plot the endpoints on a coordinate plane (see attachment)

From the attached figure, we can see that the quadrilateral is a rhombus

Hence, the most descriptive name for the quadrilateral is rhombus

Read more about parallelograms at:

brainly.com/question/11627202

4 0
3 years ago
Convert the circle to standard form.<br><img src="https://tex.z-dn.net/?f=%20%7B9x%7D%5E%7B2%7D%20%20%2B%20%20%7B9y%7D%5E%7B2%7D
lara31 [8.8K]

Answer:

(x + 1)² + (y + 1)² = (√6)²

Step-by-step explanation:

Group the x- and y- terms together:

9x^2 + 18x + 9y^2 + 9y = 36

Factor out the coefficient 9:

x^2 + 2x + y^2 + y = 4

Complete the square of x^2 + 2x and then do the same for y^2 + 2y:

x^2 + 2x + 1 - 1 + y^2 + 2y + 1 - 1 = 4

Rewrite x^2 + 2x + 1 as the square of the binomial x + 1:

(x + 1)^2 + (y + 1)^2 - 2 = 4

Collect the constant terms on the right side:

(x + 1)^2 + (y + 1)^2 = 6

Rewrite 6 as (√6)^2:

(x + 1)² + (y + 1)² = (√6)² is the equation in standard form (x - h)² + (y - k)² = r²

Completing the square is done as follows:  x^2 + 2x

Start with x^2 + 2x

1.  Take half of the coefficient of x, which results in 2/2, or 1

2.  Square this result and add it to, and subtract it from x^2 + 2x

     x^2 + 2x + 1 - 1

3.  Rewrite the first three terms as the square of a binomial:  

     x^2 + 2x + 1 - 1 = (x + 1)² - 1.

Do the same for y² + 2y.

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3 years ago
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