1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
iren2701 [21]
2 years ago
15

Solve the equation by completing the square. Round to the nearest hundredth if necessary.

Mathematics
1 answer:
nikdorinn [45]2 years ago
6 0
This answer would be A hope this helps
You might be interested in
A survey shower that 82% of adults need correction for their eyesight. If 18 adults are randomly selected, find the probability
Ksju [112]

Answer: yes.

Step-by-step explanation:

18 people × .82 percent = 14.76

4 0
3 years ago
Consider a sample with data values of 27, 24, 21, 16, 30, 33, 28, and 24. Compute the 20th, 25th, 65th, and 75th percentiles. 20
densk [106]

Answer:

P_{20} = 20 --- 20th percentile

P_{25} = 21.75  --- 25th percentile

P_{65} = 27.85   --- 65th percentile

P_{75} = 29.5   --- 75th percentile

Step-by-step explanation:

Given

27, 24, 21, 16, 30, 33, 28, and 24.

N = 8

First, arrange the data in ascending order:

Arranged data: 16, 21, 24, 24, 27, 28, 30, 33

Solving (a): The 20th percentile

This is calculated as:

P_{20} = 20 * \frac{N +1}{100}

P_{20} = 20 * \frac{8 +1}{100}

P_{20} = 20 * \frac{9}{100}

P_{20} = \frac{20 * 9}{100}

P_{20} = \frac{180}{100}

P_{20} = 1.8th\ item

This is then calculated as:

P_{20} = 1st\ Item +0.8(2nd\ Item - 1st\ Item)

P_{20} = 16 + 0.8*(21 - 16)

P_{20} = 16 + 0.8*5

P_{20} = 16 + 4

P_{20} = 20

Solving (b): The 25th percentile

This is calculated as:

P_{25} = 25 * \frac{N +1}{100}

P_{25} = 25 * \frac{8 +1}{100}

P_{25} = 25 * \frac{9}{100}

P_{25} = \frac{25 * 9}{100}

P_{25} = \frac{225}{100}

P_{25} = 2.25\ th

This is then calculated as:

P_{25} = 2nd\ item + 0.25(3rd\ item-2nd\ item)

P_{25} = 21 + 0.25(24-21)

P_{25} = 21 + 0.25(3)

P_{25} = 21 + 0.75

P_{25} = 21.75

Solving (c): The 65th percentile

This is calculated as:

P_{65} = 65 * \frac{N +1}{100}

P_{65} = 65 * \frac{8 +1}{100}

P_{65} = 65 * \frac{9}{100}

P_{65} = \frac{65 * 9}{100}

P_{65} = \frac{585}{100}

P_{65} = 5.85\th

This is then calculated as:

P_{65} = 5th + 0.85(6th - 5th)

P_{65} = 27 + 0.85(28 - 27)

P_{65} = 27 + 0.85(1)

P_{65} = 27 + 0.85

P_{65} = 27.85

Solving (d): The 75th percentile

This is calculated as:

P_{75} = 75 * \frac{N +1}{100}

P_{75} = 75 * \frac{8 +1}{100}

P_{75} = 75 * \frac{9}{100}

P_{75} = \frac{75 * 9}{100}

P_{75} = \frac{675}{100}

P_{75} = 6.75th

This is then calculated as:

P_{75} = 6th + 0.75(7th - 6th)

P_{75} = 28 + 0.75(30- 28)

P_{75} = 28 + 0.75(2)

P_{75} = 28 + 1.5

P_{75} = 29.5

7 0
3 years ago
What is the answer to this question?
MrRa [10]

Answer:

20 i think

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
Solving systems by elimination with multiplication: 8x+7y=20 and 4x-4y=-20
borishaifa [10]
If you put 0 in the place of x or y, which every one you choose, it will cancel it or and you can just divide the number next to it by the answer (-20, 20). Take it one step at a time, don't try to do both at the same time.
3 0
3 years ago
5 1/2 + 1 1/6<br><br><br> PLEASE HELP
Rashid [163]

Answer:

6 2/3

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Other questions:
  • Question Help Jen borrowed​ $1500 from her parents for car repairs. She plans to take​ 10% of her​ $450 weekly income to pay the
    14·1 answer
  • Annie walks 15 feet away from her house and places a mirror on the ground. She backs 4 feet away from the mirror so that she can
    8·1 answer
  • how many times can a rectangle be reflected across an axis of symmetry so that it carries onto itself
    7·2 answers
  • there are 93 calories in a small candy bar.how many calories are there in a half dozen small candy bar?
    11·1 answer
  • 5 STARS AND 20 POINTS PLEASE HELP ASAP
    8·1 answer
  • For the following right triangle find the side length x round your answer to the nearest hundredth
    15·1 answer
  • Michelle has 3
    10·1 answer
  • Please help me <br> 3(x + 2) * 10 * 7 divided by 70 - 2 (x+2)<br><br> Simplify
    10·1 answer
  • What is 9\12 as a percent?​
    7·1 answer
  • Use the quadratic formula to write a quadratic equation has a solution x=2+-4/-2
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!