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Lady bird [3.3K]
3 years ago
11

Pentagon ABCDE is shown on the coordinate plane below:

Mathematics
2 answers:
lara [203]3 years ago
8 0

Answer:

I think its D

Step-by-step explanation:

Luden [163]3 years ago
3 0
Yesssssifkfnrjcknd doieuur736464
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What is 15 - (-15) need answer asap
Stels [109]

Answer:

30

Step-by-step explanation:

(-) (-) = +

Therefore 15 - (-15) = 15 + 15 = 30

4 0
2 years ago
Hello please help help
irinina [24]

9514 1404 393

Answer:

  48°

Step-by-step explanation:

ΔACB is isosceles, so angles A and B have the same measure. The measure of angle C in that triangle is ...

  ∠C = 180° -2(69°) = 42°

Angle C in ΔCDE has the same measure. Angle D is the complement of that:

  ∠D = 90° -42° = 48°

_____

The relations we used are ...

  • the sum of angles in a triangle is 180°
  • base angles of an isosceles triangle are congruent
  • vertical angles are congruent
  • acute angles in a right triangle are complementary
5 0
2 years ago
Cody lives 1 mile from spring lake park After he walks 5/8 miles towards spring lake park, he stops to talk with his friend alle
Nookie1986 [14]
I cant make a timeline but the correct answer is 3/8 of a mile
6 0
3 years ago
In a survey of adults aged 57 through 85​ years, it was found that 86.6​% of them used at least one prescription medication. Com
OleMash [197]

Answer:

a) 272 used at least one prescription​ medication.

b) The 90% confidence interval estimate of the percentage of adults aged 57 through 85 years who use at least one prescription medication is (85.6%, 87.6%).

Step-by-step explanation:

Question a:

86.6% out of 3149, so:

0.866*3149 = 2727.

272 used at least one prescription​ medication.

Question b:

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence level of 1-\alpha, we have the following confidence interval of proportions.

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

In which

z is the z-score that has a p-value of 1 - \frac{\alpha}{2}.

For this problem, we have that:

n = 3149, \pi = 0.866

90% confidence level

So \alpha = 0.1, z is the value of Z that has a p-value of 1 - \frac{0.1}{2} = 0.95, so Z = 1.645.  

The lower limit of this interval is:

\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.866 - 1.645\sqrt{\frac{0.866*0.134}{3149}} = 0.856

The upper limit of this interval is:

\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.866 + 1.645\sqrt{\frac{0.866*0.134}{3149}} = 0.876

For the percentage:

0.856*100% = 85.6%

0.876*100% = 87.6%.

The 90% confidence interval estimate of the percentage of adults aged 57 through 85 years who use at least one prescription medication is (85.6%, 87.6%).

7 0
3 years ago
Can some one plzz answer this fastttttt plzzz​
Vikentia [17]

Answer:

Please see attached picture

hope it helped you:)

8 0
3 years ago
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