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3 years ago

Meredith uses a rule to write the following sequence of numbers. 14 3/10 13 4/5 13 3/10 . what rule did meredith use

Mathematics

1 answer:

ollegr [7]3 years ago

5 0

Answer:

Step-by-step explanation:

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A cylinder of metal with a mass of 23.6546 g is submerged in a graduated cylinder containing 25.20 mL of water. The water level

PSYCHO15rus [73]

Answer:

e. 5.0329 g/mL

Step-by-step explanation:

Density is defined as mass divided by volume of an object. The volume displaced is:

$v=29.90mL-25.20mL\\=4.7mL$

#Density is then calculated as:

$d=\frac{23.6546g}{4.7mL}\\\\=5.0329g/mL$

#Correct significant figures should correspond to the highest given in the question.

Hence the density of the metal is 5.0329g/mL

6 0

3 years ago

A car driving at 20m/s accelerates at 3m/s2 for 3s. What is its final velocity? How far will it travel during this time?

-BARSIC- [3]

Answers:

Final velocity = 29 m/s

Distance traveled = 73.5 meters

========================================================

Work Shown:

The given data is

$v_i = 20 \text{ m}/\text{s} = \text{initial velocity}\\\\a = 3 \text{ m}/\text{s}^2 = \text{acceleration}\\\\t = 3 \text{ s} = \text{time duration}\\\\$

This leads to

$v_f = v_i + a*t\\\\v_f = 20 + 3*3\\\\v_f = 20 + 9\\\\v_f = 29\\\\$

The final velocity is 29 m/s.

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We can use that final velocity to find the distance traveled.

$x = 0.5*(v_i+v_f)*t\\\\x = 0.5*(20+29)*3\\\\x = 0.5*(49)*3\\\\x = 24.5*3\\\\x = 73.5\\\\$

The distance traveled is 73.5 meters.

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An alternative way to calculate the distance is to do this

$x = \frac{(v_f)^2 - (v_i)^2}{2a}\\\\x = \frac{(29)^2 - (20)^2}{2*3}\\\\x = \frac{841 - 400}{6}\\\\x = \frac{441}{6}\\\\x = 73.5\\\\$

Or you could do this

$x = v_i*t + 0.5*a*t^2\\\\x = 20*3 + 0.5*3*3^2\\\\x = 20*3 + 0.5*3*9\\\\x = 60 + 13.5\\\\x = 73.5\\\\$

For more information, check out the Kinematics equations.

7 0

3 years ago

According to the lecture, a valedictory speech should last approximately ________ minutes.

fiasKO [112]

<span>According to the lecture, a valedictory speech should last approximately 15 minutes. </span>

6 0

3 years ago

An ecological group suspects lobsters are consuming dangerous levels of mercury in a region of the world. Dangerous levels of me

Crank

Part A: 5 out 25 lobsters have dangerous levels of mercury

Part B: the 95% confidence interval is given by (4.45, 5.65)

since everything is given all I had to do is find the critical value which can be found from the resource packet = 2.064

Using the formula we find 5.05+-2.064*1.45/5 = ( 4.45,5.65)

For this case, we have 95% of confidence that the true mean for the average number of lobsters with dangerous levels of mercury is between 4.45,5.65

5 0

3 years ago

Which on the answer please help

Serggg [28]

Answer: D

Step-by-step explanation:

6.5 * 150= 975

4 0

3 years ago

Meredith uses a rule to write the following sequence of numbers. 14 3/10 13 4/5 13 3/10 . what rule did meredith use​

Meredith uses a rule to write the following sequence of numbers. 14 3/10 13 4/5 13 3/10 . what rule did meredith use