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3 years ago

ANSWER QUICK PLEASE HELP

Mathematics

1 answer:

Zinaida [17]3 years ago

7 0

Equation B is linear. A linear equation will not contain exponents.

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When considering the normal power demand as reported by a utility company, the power demand at midnight is 1040 MW. During the f

anastassius [24]

Answer:

120 MW/hour

Step-by-step explanation:

The formula of the average rate of change between two points in a function is:

Average rate of change (ARC) = f(x2) -f(x1)/(x2-x1)

Let's think the power demad as a function d(x) depending of the hour of the day, so the variable x= hour of the day.

Now we have:

d(5)= 1600

d(8)= 1960

If we apply the mentioned ARC formula = [d(8)-d(5)] MW/(8-5)hour= (1960-1600)MW/3hour= 360/3=120 MW/Hour

3 0

3 years ago

Solve and check: 3 x2 + 5x + 6 + x − 1 x + 2 = 7 x + 3

vagabundo [1.1K]

Answer:

3 $x^{2}$ -2x +5=0

Step-by-step explanation:

Combine liked terms:

3 $x^{2}$ +5x+x-1x+6+2=7x+3

3 $x^{2}$ +6x-1x+8=7x+3

3 $x^{2}$ +5x+8=7x+3

Subtract 3: 3 $x^{2}$ +5x+8-3=7x+3-3

3 $x^{2}$ +5x+5=7x

Now subtract 7x:

3 $x^{2}$ +5x+5-7x=7x-7x

If you want combine liked terms:

3 $x^{2}$ -7x+5x+5=0

3 $x^{2}$ -2x+5=0

Hope this helps!

5 0

3 years ago

What is the diffrence bewtween arthimetic for and geomtric form

Hoochie [10]

An arithmetic sequence is a sequence with the difference between two consecutive terms constant. The difference is called the common difference. A geometric sequence is a sequence with the ratio between two consecutive terms constant. This ratio is called the common ratio.

3 0

4 years ago

A machine covers 5/8 square foot in 1/4 hour

VLD [36.1K]

The question is incomplete. Here is the complete question:

A machine covers 5/8 square foot in 1/4 hour. what is the unit rate?

Answer:

2.5 square feet per hour

Step-by-step explanation:

Given:

Area covered by a machine = $frac{5}{8}\ ft^2$

Time taken to cover the given area = $\frac{1}{4}\ h$

Now, unit rate of the first quantity with respect to second quantity is the magnitude of the first quantity being when the second quantity is one unit.

Here, the first quantity is the area covered and the second quantity is the time taken.

So, unit rate is the area covered by the machine in 1 hour.

In order to find that, we use the unitary method and divide the area by the total time taken. Therefore,

$Unit\ rate=\frac{Total\ area\ covered}{Total\ time\ taken}\\\\Unit\ rate=(\frac{5}{8}\ ft^2)\div (\frac{1}{4}\ h)\\\\Unit\ rate=\frac{5}{8}\times \frac{4}{1}\ ft^2/h\\\\Unit\ rate=\frac{20}{8}=2.5\ ft^2/h$

Thus, the unit rate is 2.5 square feet per hour.

5 0

3 years ago

Plssss Help!!! Will mark brainiest!!

marshall27 [118]

Answer:

the last one

Step-by-step explanation:

5 0

3 years ago