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3 years ago

IF ANY GOOD EXPERT CAN HELP ME SOLVE THIS IN AN SIMPLE WAY THEN ILL GIVE BRAINLEST AND POINTS.

Mathematics

1 answer:

vagabundo [1.1K]3 years ago

4 0

Answer:

$A=63.4\ ft^2$

Step-by-step explanation:

we know that

The area of triangle applying the law of sines is equal to

$A=\frac{1}{2}(a)(b)sin(C)$

we have

$a=9\ ft\\b=15\ ft\\C=110^o$

substitute the given values

$A=\frac{1}{2}(9)(15)sin(110^o)$

$A=63.4\ ft^2$

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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.

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Joe is hiking a trail that is 30 miles long. after several days, he is two times as far from the beginning of the trail as he is

lora16 [44]

In order to answer this question let's suppose,
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3 years ago

IF ANY GOOD EXPERT CAN HELP ME SOLVE THIS IN AN SIMPLE WAY THEN ILL GIVE BRAINLEST AND POINTS.​

IF ANY GOOD EXPERT CAN HELP ME SOLVE THIS IN AN SIMPLE WAY THEN ILL GIVE BRAINLEST AND POINTS.