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Elenna [48]
3 years ago
14

Please Help!!! Whoever helps first and gets it correct gets Brainliest!

Mathematics
1 answer:
Elis [28]3 years ago
7 0

Answer:

Step-by-step explanation:

You have three data points. Equation of the line passing through (30,2), (45,2.75), and (60,3.50):

y = 0.5x + 0.5

It takes 0.5 hour to clean up.

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Help pls 2x^2+5x+3x+1
Oxana [17]

Answer: 2x^2+8x+1

Step-by-step explanation:

5x+3x=8x

4 0
3 years ago
Percentages are numerators of the fractions with denominator
Sav [38]
What is the question?
6 0
3 years ago
Read 2 more answers
Create your own real-world example of a relation that is a function. Domain: The set of Range: The set of
ivanzaharov [21]

Answer:

C(t)=5000 -10t

Step-by-step explanation:

There are many examples in the real world of relationships that are functions.

For example, imagine a tank full of water with a capacity of 5000 liters, this tank has a small hole, by which 10 liters of water are lost every hour.

If we call C the amount of water in the tank as a function of time, then we can write the following equation for C:

C(t)=C_{0}-at\\

Where:

C (t): Amount of water in the tank as a function of time

C_{0}: Initial amount of water in the tank at time t = 0

a: amount of water lost per hour

t: time in hours

Then the equation is:

C(t)=5000 -10t

The graph of C (t) is a line of negative slope. This relation is a function since for each value of t there is a single value of C.

Its domain is the set of all positive real numbers t between [0,500]

Because the time count starts at t = 0 when the tank is full and ends at t = 500 when empty

Its Range is the set of all positive real numbers C between [0,5000] Because the amount of water in the tank can never be less than zero or greater than 5000Litres

7 0
4 years ago
Read 2 more answers
Find the perimeter of the polygon
wariber [46]

Answer:

56 yds

Step-by-step explanation:

Simply add up all the sides to find your perimeter:

12 + 12 + 18 + 14 = 56

8 0
4 years ago
Elmer has a collection of 300 fossils. Of these, 21 percent are fossilized snail shells.
chubhunter [2.5K]
In order to figure out the number of fossilized snail shell, multiply 21% by 300. first change 21% into a decimal, in order to do that, move the percent symbol two spaces to the left, and replace the "%" symbol to a decimal. 0.21 X 300= 63
so 21% of 300 is 63

5 0
3 years ago
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