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2 years ago

Identify an acute angle and give its measure.

Mathematics

2 answers:

Karolina [17]2 years ago

8 0

D and H 75 degrees.

melamori03 [73]2 years ago

6 0

Answer:

k&F 20 degrees

Step-by-step explanation:

hope it helps

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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.

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

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3 years ago

What is the square root of x to the 10 power

Harrizon [31]

Answer:

x^5

Step-by-step explanation:

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2 years ago

What is -3(y+2)^2-5+6y in standard from

satela [25.4K]

Answer:

Step-by-step explanation:

-3(y²+4y+4)-5+6y

=-3y²-12 y-12-5+6 y

=-3y²-6y-17

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3 years ago

A rectangular lot is 145 yards long and 100 yards wide.

mr_godi [17]

Answer:

150 by 100

Step-by-step explanation:

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3 years ago

?/1<br> What percent of 29 is 3? Round to the nearest tenth of a percent.

Marina CMI [18]

Answer:

10.34%

Step-by-step explanation:

29×x%=3

X=10.34%

7 0

3 years ago