Mathematics High School

The dot plot shows the number of hours of daily driving time for 14 school bus drivers. Each dot represents a
driver
+++++
1 2 3 4 5 6 7 8 9
Daily driving time (hours)
Which of the following is the closest estimate to the percentile for the driver with a daily driving time of 6
hours?

Answers

Answer 1

Answer: 8/14

Step-by-step explanation: make 8/14 into a percent and you have the answer for khan

Answer 2

The closest estimate to the percentile for the driver with a daily driving time of 6 hours is 57th if the dot plot shows the number of hours of daily driving time for 14 school bus drivers.

What is a percentile?

A percentile is a score that relates one rating to the scores of the rest of the group. It represents the proportion of scores that a given score surpassed.

We have:

Total number of observations N = 14

Index for 6 = 8

Percentile for the observation:

P = (R/N)×100

P = (8/14)×100

P = 0.571×100

P = 57.14 or

P = 57th percentile

Thus, the closest estimate to the percentile for the driver with a daily driving time of 6 hours is 57th if the dot plot shows the number of hours of daily driving time for 14 school bus drivers.

Learn more about the percentile here:

https://brainly.com/question/1561673

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The Dot Plot Shows The Number Of Hours Of Daily Driving Time For 14 School Bus Drivers. Each Dot Represents

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Jason was driving down a road and after 2 hours he had travelled 80 miles at this speed how many miles would it takes Jason to drive 160 miles

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how much is 4/5 of a dollar

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It’s 25 25 25 25 or 20 x 4=5 or 100

Given that P = x + y . Find P when: x = 20 and y = − 24 P = ?

Answers

Answer:

P = -4

Step-by-step explanation:

Assuming that x = 20 and y = 24, you have to plug in these numbers for x and y to get to this equation P = 20 - 24.  You should get -4 when you subtract 24 from 20 giving you a negative answer.

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Answer:

A) 3

Step-by-step explanation:

divide 77 by 11

you get 7

divide 21 by 7 to find x

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The function can be used to determine the milligrams D of a certain drug in a patient's bloodstream h hours after the drug has been given. How many milligrams (to two decimals) will be present after

Answers

Answer: 0.09 mg

Step-by-step explanation:

To find out the milligrams in the blood after 10 hours you just need to replace the 'h' in the equation to 10.

= 5e⁻⁰°⁴ˣ¹⁰

= 5e⁻⁴

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HELP PLS IVE ASKED THIS LIKE 3 TIMES ALREADY!!!!

Simplify:
1. ½(2r + 4) - ¼(16 - 8r)
2. (8x - 3) - (2x + 6)
3. (2 - 7y) - 3(y - 9)
4. 2(3x - 4) - (2x - 5)

Answers

Step-by-step explanation:

1. ½(2r + 4) - ¼(16 - 8r)=3r-2

2. (8x - 3) - (2x + 6)=6x-9

3. (2 - 7y) - 3(y - 9)=-10y+29

4. 2(3x - 4) - (2x - 5)=4x-3

Express your answer as a polynomial in standard form. f(x) = -x + 3 g(x) = 2x^2 – 3x - 7 Find: f(g(x))​

Answers

Answer:

-2x² + 3x + 10

Step-by-step explanation:

-(2x² - 3x - 7) + 3

-2x² + 3x + 7 + 3

-2x² + 3x + 10

Solve the equation −4p+9=−5

Answers

Answer:

p = 7/2 or 3.5

Step-by-step explanation:

-4p + 9 = -5

-4p = -14 (subtracted 9 from both sides)

p = -14/-4 = 7/2

Answer:

p=3.5

Step-by-step explanation:

-4p+9=-5

-9

-4p=-14

p=3.5

Find the difference:
2(x-2) - 3(x-4)

Answers

Answer:

brainliest plzzzzz

Step-by-step explanation:

2(x-2) - 3(x-4)

Simplify:

2(x-2)-3(x-4)

2x-4-3(x-4)

Distribute:

2x-4-3(x-4)

2x-4-3x+12

Add the numbers:

2x-4-3x+12

2x+8-3x

Combine like terms:

2x+8-3x

-x+8

Hence Solution = -x+8

what is the y intercept

Answers

Answer:

2

Step-by-step explanation:

Does anyone know how to solve this??

Answers

Answer:

(x - 3)² + (y + 1)² = 65

Step-by-step explanation:

The equation of a circle in standard form is

(x - h)² + (y - k)² = r²

where (h, k) are the coordinates of the centre and r is the radius

The centre C is at the midpoint of the endpoints of the diameter.

Using the midpoint formula to find C

C = ( [tex]\frac{7-1}{2}[/tex], [tex]\frac{6-8}{2}[/tex] ) = ( [tex]\frac{6}{2}[/tex], [tex]\frac{-2}{2}[/tex] ) = (3, - 1 )

The radius is the distance from the centre to either of the endpoints of the diameter.

Using the distance formula to find r

with C (3, - 1 ) and (7, 6 ) , then

r = [tex]\sqrt{(7-3)^2+(6+1)^2}[/tex]

  = [tex]\sqrt{4^2+7^2}[/tex]

  = [tex]\sqrt{16+49}[/tex]

  = [tex]\sqrt{65}[/tex]

Then equation of circle is

(x - 3)² + (y - (- 1) )² = ([tex]\sqrt{65}[/tex] )², that is

(x - 3)² + (y + 1)² = 65 ← equation of circle

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Answers

Answer:y=1/5x+5

Step-by-step explanation:

m=slope so plug in the slope you already have which is 1/5

b= y intercept so plug in your y intercept which is 5

Find the quotient.

(6x2 - x - 40) ÷ (5 + 2x)
3x - 8
3x + 8
8 - 3x

Answers

Answer:

The final answer is the quotient.

3x−8

Step-by-step explanation:

Answer:

The final answer is the quotient.

3x−8

Step-by-step explanation:

(5x - 2)(8x - 7)
Find each product by step by step

Answers

Answer:

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Step-by-step explanation:

1 step (5x-2) = (8x-7)

expand (8x-7) = 8x-7 so 5x-2=8x-7

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divide both sides by -3

3x 3 =5x

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diameter = 29.5cm

height= 27.5cm


what is the surface area of the lateral side ( the curved part)?

Answers

Answer:

πd X 27.5

π X 29.5 X 27.5= 2548.61704

2548.62cm

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Answers

1.80/12=15 cents each
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Select all the correct answers.
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105
(103)
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Answers

Answer:

105

Step-by-step explanation:

0 (104) is equal to 0, so let's cross that out. 103 times 102 is definitely not equal to 105. The third one is 105. The fourth one is not 105. The last one is not 105 either.

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B. m = 8
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D. m = 14

Answers

The answer is m=6. I used cross multiplication to effectively solve this question.

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Answer:

The answer is x=12

Step-by-step explanation:

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Step-by-step explanation: 30²= 900

                                             33²= 1089

                                             900²+1089²=1989²

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Answers

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Answers

Answer:

1/2

Step-by-step explanation:

Given the expression

4/5 x - 1/10 = 3/10

We are to find the value of x

4/5 x = 3/10 + 1/10

4/5 x = 4/10

Cross multiply

4x * 10 = 5 * 4

40x = 20

x = 20/40

x = 1/2

The value of x is 1/2

Answer:

Its 1/2 :)

Step-by-step explanation:

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Answers

Answer: 40

Step-by-step explanation:

5*2^3 = ?   // means comment btw, also I am on my iPad so * means times and ^ power like 2 to the 3rd power

5*2*2*2

(5*2)*(2*2)

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Answer= 40

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f(x)=-3x
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Answers

Answer:

False is the correct answer✔✔✔

Step-by-step explanation:

Answer:

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Answers

Answer:

The graph at the bottom

Step-by-step explanation:

All the numbers are gonna come out positive, because of the absolute value bars.

Answer:

i think its the last one i got that answer right

Step-by-step explanation:

The teacher asked a different group of students to make a batch of orange paint that had a ratio of ¼ cups yellow to ¾ cups of red. Create a table of 4 different sized batches that would make the shade of range she wanted. Then upload a picture of your table to this question from page 28 of your packet.

Answers

I can’t answer without the packet

Two numbers are listed on a number line. Which value is NOT between these two
numbers on the number line?
43/7
3314
A 620%
B. 1217
C 49
D. N56

Answers

Answer:

d and b

Step-by-step explanation:

what is 8x3 and 7x8 can you please answer thisplease

Answers

Answer:

24 and 56

Step-by-step explanation:

8*3=24

7*8=56

8 x 3 = 24
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Multiply. (5x + 7)2

A. 25x2 + 35x + 49
B. 25x2 – 70x + 49
C. 25x2 + 70x + thing
D. 25x2 + 49​

Answers

Answer:

(5x + 7)² = 25x² + 70x + 49 ⇒ C

Step-by-step explanation:

The steps of solving the square binomial: (ax + b)²

1. (ax + b)² = (ax + b)(ax + b)

2. (ax + b)(ax + b) = (ax × ax) + (ax × b) + (b × ax) + (b × b) = a²x² + abx + abx + b²

3. Add the like terms ⇒ a²x² + (abx + abx) + b² = a²x² + 2abx + b²

Then (ax + b)² = a²x² + 2abx + b²

Let us use the same steps to solve the question

∵ (5x + 7)² = (5x + 7)(5x + 7)

∴ (5x + 7)(5x + 7) = (5x)(5x) + (5x)(7) + (7)(5x) + (7)(7)

∴ (5x + 7)(5x + 7) = 25x² + 35x + 35x + 49

→ Add the like terms

∵ 25x² + 35x + 35x + 49 = 25x² + (35x + 35x) + 49 = 25x² + 70x + 49

∴ (5x + 7)(5x + 7) = 25x² + 70x + 49

→ Then equate (5x + 7)² by the right side above

∴ (5x + 7)² = 25x² + 70x + 49

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