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3 years ago

Which statement is true about this equation?

Mathematics

1 answer:

amm18123 years ago

5 0

Answer:

Step-by-step explanation:

it represents both a relation and a function

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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

4 years ago

Mae sells newspaper subscriptions door-to-door. In addition to a fixed salary, she earns a commission for each subscription that

Lady_Fox [76]

<span>The answer is y = 10x + 125</span>

6 0

3 years ago

Read 2 more answers

2 Kendal bought x boxes of cookies to bring to a party. Each box contains 12 cookies. She

torisob [31]

Answer:

Hey there! The answer to your question will be below.

Step-by-step explanation:

The correct answer to your question is 12x - 24=60

So we know that 12x will be the number of cookies.

It says that she kept two boxes for herself, and than she took away 24 boxes which will leave us with 60.

Here is the work:

12 (x-2)= 60

12x-24=60

So the answer should be 12x -24 = 60

Hope this helps!

By:xBrainly

3 0

3 years ago

What is the measure of angle DCR

PIT_PIT [208]

Answer:

Angle DCF is equal to 125 degrees.

Step-by-step explanation:

4 0

3 years ago

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Ppppppllease help meeeeee :)

nekit [7.7K]

I think is c because you just flipping the the letters and It should be the same answer ...but I’m not sure....

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3 years ago

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