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2 years ago

4y = 2x - 4 2y = -4x + 2

Mathematics

1 answer:

OlgaM077 [116]2 years ago

5 0

59 that the anaqueles y un poco del aire

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Based on this triangle, which one of the following statements is true? (Note: the triangle is not drawn to scale)

Sveta_85 [38]

Answer:

Step-by-step explanation:

All triangles angles add up to 180°

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2 years ago

I will give brainliest if you sub and stay subbed to JD Outdoors & Gaming

solmaris [256]

Answer:

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Step-by-step explanation:

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2 years ago

Order the ratios from least to greatest 6:3 13 to 4 19/2 15 to 10 8:2

Alik [6]

6:3 = 6/3 = 2

13 to 4 = 13:4 = 13/4 = 3.25

19/2 = 9.5

15 to 10 = 15:10 = 15/10 = 1.5

8:2 = 8/2 = 4

From the least to the greatest:

15 to 10 , 6:3, 13 to 4, 19/2

I hope this explains it.

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3 years ago

3 hours 20 minutes - 1 hour 48 minuets A. 2.12 B. 2.52 C. 1.32 D. 1.53

chubhunter [2.5K]

3 hours and 20 minutes minus 1 hour and 48 minuets equals an hour and 32 minutes. There are 60 minuets in an hour and 60 divided by 32 is 0.53. This means that your final answer is:
D. 1.53

5 0

3 years ago

The temperature, H, in degrees Celsius, of a cup of coffee placed on the kitchen counter is given by H = f(t), where t is in min

Deffense [45]

Answer:

f'(t) is negative

The unit is degC/min

At 35 minutes after the coffee was put on the counter, its temperature is 68 and will decrease by about 0.75 in the next 30 seconds.

Step-by-step explanation:

From the question we are told we are told that

The equation for the temperature of a cup of coffee place on a counter is

$H= f(t)$

Here t is the time in minutes the coffee was put on the counter

Generally f(t)' is the derivative of f(t) at it represents the change of the temperature of the cup of coffee with respect to time

Generally for the coffee placed on the counter after a couple of minutes the temperature will decrease hence f(t)' is negative

Generally the unit of the temperature is in degrees Celsius while that of time is in minutes

So the change in temperature with time f(35)' will be in degrees Celsius/minutes (i.e degC/min)

From the question we are told that

$|f(35)'| = 1.5$

i.e the rate of change of temperature after 35 minutes is 1.5

and

$|f(35)| = 68$

i.e the temperature of the cup of coffee after 35 minutes is 67 degC

Now after another t= 30 seconds = $\frac{30}{60}= 0.5 \ minutes$ the rate of change of the temperature of the cup of coffee is

$R = |f(35)'| * t$

=> $R = 1.5 * 0.5$

=> $R = 0.75$

At 35 minutes after the coffee was put on the counter, its temperature is 68 and will decrease by about 0.75 in the next 30 seconds.

5 0

2 years ago