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3 years ago

Hi. please help with this. i gave all the examples. all i need to do is fill in the blanks.

Mathematics

2 answers:

Anna007 [38]3 years ago

6 0

Answer:

1. Data distribution

2. Center

3.Statistical question

4. Variability

Eddi Din [679]3 years ago

4 0

Answer:

1. Data distribution

2. Center

3. Statistical question

4. Variability

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A sample of bacteria is decaying according to a half-life model. If the sample begins with 700 bacteria, and after 10 minutes th

Papessa [141]

Answer:

18 minutes

Step-by-step explanation:

A = A₀ (½)^(t / T)

where A is the final amount,

A₀ is the initial amount,

t is the time,

and T is the half life.

A = 140 when t = 10. Solve for the half life:

140 = 700 (½)^(10 / T)

0.2 = ½^(10 / T)

log 0.2 = (10 / T) log 0.5

10 / T = 2.32

T = 4.31

When A = 40, t is:

40 = 700 (½)^(t / 4.31)

0.057 = ½^(t / 4.31)

log 0.057 = (t / 4.31) log 0.5

t / 4.31 = 4.13

t = 17.8

Rounded to the nearest whole number, it takes 18 minutes.

4 0

4 years ago

How do i find the volume of this tunnel? Use 3.14 for pi. Please answer ASAP.

bogdanovich [222]

V=3.14(R)^2(H)

this is the formula to find the volume of a cylinder

8 0

4 years ago

Read 2 more answers

Desiree is given an aptitude test with 50 multiple-choice questions. For every correct answer, Desiree will get 3 points. For ev

Otrada [13]

Total number of multiple-choice questions that Desiree has to answer in Aptitude test = 50

Points given for every correct Answer = +3

Points deducted for every Incorrect Answer = -1

For every question unanswered ,

points Deducted = -0.5

Total Points Obtained by Desiree after Answering all the questions = 110

Number of Answers that Desiree answered correctly = x questions

Number of Incorrect Answers = (50 - x) questions

Then,the Equation representing above situation

→ 3 × x + ( -1 ) × ( 50 - x ) = 110

⇒3x - 50 + x = 110 ----------- equation that represents the given situation

⇒ 4x - 50 = 110

Adding 50, on both sides

→ 4x - 50 + 50 = 110 + 50

⇒ 4x = 160

Dividing both sides by, 4 we get

x = 40

Number of correct answers given by Desiree= 40 questions

Number of Incorrect Answers = 50 - 40

= 10 Questions .

5 0

3 years ago

The dictionary is 3 inches thick. What is the volume of the dictionary

Yuki888 [10]

Answer:

Square shaped = 27 cubic inches , Rectangular shaped = 3LW cubic Inches

Step-by-step explanation:

If the dictionary is a square ( all sides are equal ) the the volume is

V = Length * Length * Length = $L^{3}$

V = 3 * 3 * 3 = 27 $inch^{3}$

while if its rectangular ( all side are not equal ) shaped

V = Length * Width * Height (thickness)

V = L * W * 3 = 3LW $inch^{3}$

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3 years ago

Please someone help me with this I am very confused

Elis [28]

$8 \sqrt{3} *4 \sqrt{15} = 8*4 \sqrt{3*15} \\ \\ 32 \sqrt{45} = 32 \sqrt{9*5} =32*3 \sqrt{5} \\ \\ = 96 \sqrt{5} 
$

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3 years ago