All categories

4 years ago

Select the correct answer.

Mathematics

1 answer:

masha68 [24]4 years ago

3 0

Answer:

what is your question here can you be more specific?

Step-by-step explanation:

You might be interested in

The temperature at a point (x, y) is T(x, y), measured in degrees Celsius. A bug crawls so that its position after t seconds is

iren [92.7K]

Answer:

The temperature is increasing at the rate of 6.5 degree celcius per second.

Step-by-step explanation:

We are given the following information:

Temperature of a point is given by T(x,y)

After t seconds a bug reaches a point $x = \sqrt{2 + t}, y = 3 + \frac{1}{2}t$

At t = 2, x = 2, y = 4

The temperature function satisfies:

$T_x(2,4) = 8\\T_y(2,4) = 9$

We have to find:

$\displaystyle\frac{dT}{dt} = T_t(x(t), y(t))\\\\= T_x(x(t),y(t)).x'(t) + T_y(x(t),y(t)).y'(t) \\\\= T_x(x(t),y(t)).\displaystyle\frac{1}{2\sqrt{(t+2)}} + T_y(x(t),y(t)).\displaystyle\frac{1}{2} \\\\\displaystyle\frac{dT(x,y)}{dt}_{at~t=2} = \displaystyle\frac{dT(2,4)}{dt}_{at~t=2} = 8.\displaystyle\frac{1}{4} + 9.\displaystyle\frac{1}{2} = 2 + 4.5 = 6.5$

Hence, the temperature is increasing at the rate of 6.5 degree celcius per second.

3 0

4 years ago

Find the mean of these values 100, 200, 300, 400

sveticcg [70]

250

100 + 200 + 300 + 400 = 1000

1000/4 = 250

8 0

3 years ago

Read 2 more answers

REPRESENT A PROBLEM: Six friends share 5 meat pies. Each friend first eats half of a meat pie. How much more meat pie does each

lord [1]

I cannot draw a picture, you can.

6 friends multiplied by 1/2 a pie each is 3 pies. That leaves 2 pies to divide evenly among 6 friends. 2/6 = 1/3. One third more pie more for everyone.

7 0

3 years ago

2loge3 + loge x - loge2 = loge3<br><br> Solve for x

Readme [11.4K]

$2\ln 3+\ln x-\ln 2=\ln 3\\
\ln x=-\ln 3+\ln 2\\
\ln x=\ln \dfrac{1}{3}+\ln 2\\
\ln x=\ln \dfrac{2}{3}\\
x=\dfrac{2}{3}$

7 0

4 years ago

A vertical line has points C, E, F from top to bottom. 2 lines extend from point E. One line extends to point A and another exte

Alex Ar [27]

It would be something I’m just not sure

4 0

3 years ago

Read 2 more answers