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3 years ago

Can somebody help me with my Algebra 2 hw

Mathematics

1 answer:

IrinaVladis [17]3 years ago

5 0

Answer:

Step-by-step explanation:

if you look at it, it increases up to -4, and then it also decreases at -4 because it's the same line. I'm really bad at explaining so I'm sorry if this doesn't make sense.

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Which number is IRRATIONAL ?? (if answered really fast, i will give brainiest plus 100 points for the CORRECT answer.

Delvig [45]

Answer:

btw Hannah is this one fine? sorry i couldn't remember which question was the chat and sorry i couldn't respond right away im not the person who is on late in the day

Step-by-step explanation:

3 0

3 years ago

The rate at which the temperature is dropping is 6t 5t2 degrees Celsius per hour t hours after sundown. How much had the tempera

Whitepunk [10]

Using a differential equation, it is found that the temperature dropped 72 degrees Celsius between sundown and 3 hours after sundown.

<h3>What is the differential equation that describes the temperature in t hours after sundown?</h3>

The rate at which the temperature is dropping is $6t + 5t^2$ degrees Celsius per hour t hours after sundown, hence the <em>differential equation</em> is:

$\frac{dT}{dt} = 6t + 5t^2$

Applying <em>separation of variables</em>, we find the solution as follows:

$\frac{dT}{dt} = 6t + 5t^2$

$dT = (6t + 5t^2) dt$

$\int dT = \int (6t + 5t^2) dt$

$T(t) = \frac{5t^3}{3} + 3t^2 + T(0)$

In which T(0) is the temperature at sundown.

In 3 hours, the change will be of:

$C = T(3) - T(0) = \frac{5t^3}{3} + 3t^2|_{t = 3}$

Hence:

$\frac{5(3)^3}{3} + 3(3)^2 = 45 + 27 = 72$

The temperature dropped 72 degrees Celsius between sundown and 3 hours after sundown.

You can learn more about differential equations at brainly.com/question/24348029

5 0

2 years ago

Nathan received a package for his birthday the package wait $5,910,000 milligrams select the conversions that are equivalent to

Harman [31]

Answer:

5.91 kilograms

591,000 centigrams

Step-by-step explanation:

These two are WRONG:

59,100 kilograms

59.1 centigrams

4 0

3 years ago

Choose the expression that completes the equation.

In-s [12.5K]

Answer:

Option 3

Step-by-step explanation:

33 / 3 + 10 = 21

1.) 5(3 + 5) = 40

2.) 10(1 + 1) = 22

3.) 3(6 + 1) = 21

6 0

3 years ago

Read 2 more answers

Solve 19cos θ = 5 cos θ + 14 for all values of θ if θ is measured in radians.

Bas_tet [7]

Answer:

Ф=xπ, x={0,+∞}

Step-by-step explanation:

be 19cosФ=5cosФ+14 → 19cosФ-5cosФ-14 → 14cosФ-14=0 → cosФ=1

then, values for which cosФ=1 are Ф=0º=360º=720º........., but the values of Ф must be radians, so Ф=xπ, where x∈Z, not including the negative numbers,

x={0,1,2,3,....∞}

Note: π≅3.141592

when calculating the values, it must be done in radian mode

6 0

3 years ago