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goldfiish [28.3K]
3 years ago
15

Which ones arent parrellograms?

Mathematics
1 answer:
MAVERICK [17]3 years ago
6 0

Answer:

Hi, There! I'm Here to help :)

<em>I would Say the 1st Section On the Right Meaning the 1st Block on the right.</em>

<em />

Step-by-step explanation:

A parallelogram is a quadrilateral with opposite sides parallel (and therefore opposite angles equal)

.Few examples of a parallelogram are rhombus, rectangle, and square.

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All graphs need to have a key, the data (imformation) and a _____?
jarptica [38.1K]

Answer:

B

Step-by-step explanation:

6 0
3 years ago
Helpppp anyoneee plssss
scZoUnD [109]

Answer:

89

Step-by-step explanation:

Because the data is 1-to-multiple

3 0
3 years ago
Estimate the cost of painting a concrete patio if it is a 12 foot by 12 foot rectangle, and a quart of paint that covers 47 squa
umka21 [38]

Answer: $36.68 or $35.97. Read below.

Step-by-step explanation: You need to multiply the 12 foot by 12 foot and you would get 144 sq feet. Then divide 47 into 144. You will be left with 3.06, and if you need to round, you can round that to 3. Then you need to multiply 3 by $11.99 and you will be left with the cost for the paint, which is $35.97 if you do round to a three, and $36.68 if you do not round the three. So your answer is either $36.68 or $35.97 depending on whether you round or not.

6 0
2 years ago
A politician estimates that 61% of his constituents will vote for him in the coming election. How many constituents are required
Katyanochek1 [597]

Using the z-distribution, as we are working with a proportion, it is found that 1016 constituents are required.

<h3>What is a confidence interval of proportions?</h3>

A confidence interval of proportions is given by:

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which:

  • \pi is the sample proportion.
  • z is the critical value.
  • n is the sample size.

The margin of error is given by:

M = z\sqrt{\frac{\pi(1-\pi)}{n}}

In this problem, we have a 95% confidence level, hence\alpha = 0.95, z is the value of Z that has a p-value of \frac{1+0.95}{2} = 0.975, so the critical value is z = 1.96.

The estimate is of \pi = 0.61, while the margin of error is of M = 0.03, hence solving for n we find the minimum sample size.

M = z\sqrt{\frac{\pi(1-\pi)}{n}}

0.03 = 1.96\sqrt{\frac{0.61(0.39)}{n}}

0.03\sqrt{n} = 1.96\sqrt{0.61(0.39)}

\sqrt{n} = \frac{1.96\sqrt{0.61(0.39)}}{0.03}

(\sqrt{n})^2 = \left(\frac{1.96\sqrt{0.61(0.39)}}{0.03}\right)^2

n = 1015.5

Rounding up, 1016 constituents are required.

More can be learned about the z-distribution at brainly.com/question/25890103

8 0
2 years ago
Point A(4,2) is translated according to the rule (x,y)-&gt; (x+1, y-5) and then reflected across the Y-axis.
marishachu [46]
Given:

Point A with coordinates: (4, 2) is in the first quadrant.

The point is translated to the rule (x, y) --> (x+1, y-5)

Now, point A becomes (4+1, 2-5) = (5, -3) which is now in quadrant 4. 

The point is reflected across the y-axis. Now, it is in the third quadrant. 
8 0
3 years ago
Read 2 more answers
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