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Ivahew [28]
3 years ago
13

1) El ritmo cardíaco de un gato ( en latidos por minuto) es función lineal de su temperatura corporal (en grados Celsius). En co

ndiciones normales un gato con 37°C tiene un ritmo cardíaco de 200 pulsaciones por minuto y de 150 si su temperatura es de 32°C.
Mathematics
1 answer:
olga55 [171]3 years ago
6 0

Answer:

y=10x-170

Step-by-step explanation:

This problem can be modeled by a linear function, where we have two points (37°C, 200) and (32°C, 150).

Notice that the temperature is the independent variable, because the heartbeat of the cat won't change the temperature, it works in the opposite way.

First, let's find the constant ratio of change.

m=\frac{150-200}{32-37}=\frac{-50}{-5}=10

This means the hearbeat of the car changes 10 pulses per minute each 1 celsius degree.

Now, we use the point slope formula to find the equation

y-y_{1} =m(x-x_{1} )\\y-150=10(x-32)\\y=10x-320+150\\y=10x-170

Theerefore, the function that represents this situation is

y=10x-170

Where x represents temperature and y represents hearbeats.

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poizon [28]

Answer:

Clearly, the answer is 20/9, simplify it, and thats your answer! <3

<em>Hope that helped! <3</em>

<em>Byee!</em>

3 0
3 years ago
With these numbers I have to find the median. Please help mee!!
Aloiza [94]
Write them in order from least to greatest,
11.9, 12.0, 12.3, 12.4, 12.4, 12.5, 12.7,12.8, 12.9, 13.1, 13.2, 13.8
then eliminate one from each side until you find the middle one,
12.5, 12.7
you have two middle, so you find the middle number in between them.

12.6 is the median.
4 0
3 years ago
Read 2 more answers
Solve b <br> 3b / 7-1 = 5
ruslelena [56]

Answer:

b= 2 over 7

Step-by-step explanation:

exact form b= 2 over 7

decimal form b= 0.285714

7 0
3 years ago
Z varies directly with X squared and inversely with Y. When X equals two and Y equals four, Z equals three. What is the value of
gayaneshka [121]

Answer:

B

Step-by-step explanation:

Set up the equation

z = \frac{kx^2}{y}

Plug in the numbers to find the value of k

3 = \frac{k(2^2)}{4}

12 = 4k

3 = k

Solve to find the value of z

z = \frac{3(4^2)}{9}

z = \frac{3(16)}{9}

z = 48/9

z = 16/3

8 0
3 years ago
Factorise x — 5x - 6<br><br>​
hichkok12 [17]

Step-by-step explanation:

x-5x-6=0

x-5x=6+0

4x=6

x=6

4

x=3

2

<h2>this may help you</h2>
5 0
2 years ago
Read 2 more answers
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