All categories

3 years ago

Can anyone help me on this and pls explain this

Mathematics

1 answer:

7nadin3 [17]3 years ago

3 0

I can’t really see it well

You might be interested in

In the month of June, the temperature in Johannesburg, South Africa, varies over the day in a periodic way that can be modeled a

Art [367]

Answer:

The answer is " $\bold{T = - 7.5 \cos \frac{\pi}{12}( t - 4 )+ 10.5}$ "

Step-by-step explanation:

Given value:

Temp-maximum= $18^{\circ}$

Temp. minimum = $3^{\circ}$

It is halfway between 10 am and 10 pm to 4 am.

The sinus and cosine roles could be used throughout the year to predict fluctuations in climate models. Its type of formula that can be used to model such information is:

$T = A \cos B(t-C) + D,$ where parameters are A, B , C, D, T is the ° C temperature and t is the time (1-24)

$A = amplitude = \frac{(T_{max} - T_{min})}{2}\\\\$

$= \frac{(3 - 18)}{2}\\\\= - \frac{15}{2}\\\\ = -7.5$

$B = \frac{2 \pi}{24}\\\\$

$= \frac{\pi}{12}$

$C = \text{ units translated to the right}= 4$

$D = y_{min} + amplitude = units \ translated \ up\\\\$

D = 7.5 + 3 = 10.5

Its trigonometric function equation that model temperature T hours after midnight in Johannesburg t.

$T = - 7.5 \cos \frac{\pi}{12}( t - 4 )+ 10.5$

6 0

3 years ago

27.29.24<br> Simplify <br> 2327.2-10

tatyana61 [14]

Answer:

2317.2

Step-by-step explanation:

2327.2-10 =2317.2

7 0

3 years ago

Read 2 more answers

Find the complete factored form of the polynomial<br> 28a^4b^6 + 21a^3b^6

n200080 [17]

Yes the fierce rbajeei ironwood he

3 0

3 years ago

Which statements about the relationship between the two triangles below are true? Check all that apply,

leva [86]

Answer:

I don't know, because i really don't know

3 0

3 years ago

What is the perimeter of a rectangle with a length of 4x-6 and a width of 2x+3

Leona [35]

Answer:

I got p=12 i'm so sorry if the answer is wrong

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers