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Leona [35]
2 years ago
5

A reaction takes 4 min 28 sec to complete. Which of the following is a correct representation of that time period?

Mathematics
1 answer:
Ostrovityanka [42]2 years ago
7 0

Using proportions, the correct representation of that time period is of 4.47 minutes.

<h3>What is a proportion?</h3>

A proportion is a fraction of a total amount, and the measures are related using a rule of three. Due to this, relations between variables, either direct(when both increase or both decrease) or inverse proportional(when one increases and the other decreases, or vice versa), can be built to find the desired measures in the problem, or equations to find these measures.

We have that one minute has 60 seconds, hence the proportion that the 28 seconds correspond of a minute is:

28/60 = 0.47 min.

Hence the correct representation of that time period is of 4.47 minutes.

More can be learned about proportions at brainly.com/question/24372153

#SPJ1

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nekit [7.7K]

Answer:

D

Step-by-step explanation:

Slope-intercept form is [ y = mx + b ] where m = slope and b = y-intercept. We are already given the slope and y-intercept so m = 2 and b = -4.

y = 2x - 4

Best of Luck!

6 0
3 years ago
Please HELP ME!!!! This is really confusing. HOW DO I DO THIS?!?!?!
Svetradugi [14.3K]

Answer:

Flying Disc should be 72

Step-by-step explanation:

circumference = πd

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</em></u><u>Jar Lid </u>      C = 8π

                  25.1327412287

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8 0
1 year ago
Write the equation of the line that passes through (3, –2) and has a slope of 4 in point-slope form.
Likurg_2 [28]
A. would be y=4x-14
B. would be y=4x+11
C. would be y=x/4 - 11/4
D. would be y=x/4 + 7/2
Hope this helps! :)
4 0
3 years ago
The volume of a cylindrical soup can is represented by the expression πr3 + 7πr2, where r is the radius of the cylinder. Which s
Ganezh [65]

Answer:

Step-by-step explanation:

Given the volume of the cylindrical soup expressed as V = πr³+ 7πr²

From V = πr³ + 7πr²;

factor out the common variable

V = πr³ + 7πr²

V = πr²(r+7) ... 1

The original volume of a cylinder V =  πr²h .... 2 where;

r is the radius of the cylinder

h is the height of the cylinder

Equating equation 1 and 2, we will have;

πr²(r+7)  =  πr²h

Divide both sides by  πr²

πr²(r+7)/ πr² = πr²h/ πr²

r+7 = h

h = r+7

<em>Hence the factor in the context given is equivalent to the height of the cylinder written as a function of its radius r</em>.<em> The statement means that the height of the cylindrical soup is 7 more than its radius.</em>

<em></em>

5 0
3 years ago
Which of these is a verb? <br><br>Europe<br><br>Pretty<br><br>Cup<br><br>Glanced
Serjik [45]
Hello there! A verb is a word that takes an action of doing something, so the answer would be Glanced.
Hope this helps you!
7 0
3 years ago
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