All categories

3 years ago

The energy source used to produce most of the electrical energy in the United States is ____________________.

Mathematics

2 answers:

lina2011 [118]3 years ago

8 0

Answer:

fossil fuels which includes , coal, natural gas, petroleum and other gases.

Step-by-step explanation:

The United States was ranked as the second-largest energy consumer in 2010 after China. The energy source used to produce most of the electrical energy in the United States comes mostly from fossil fuels ( coal, natural gas, petroleum, and other gases). Electricity is also produced from renewable sources such as hydropower, biomass, wind, geothermal, and solar power.

Viefleur [7K]3 years ago

6 0

most of the energy of the United States is generated using fossil fuels like coal, natural gas and oil.

You might be interested in

A ferris wheel can accommodate 40 people in 30 minutes. How many people could ride the ferris wheel in 3 hours? What was that ra

andrew-mc [135]

240 people could ride it in 3 hours. The rate per hour is 80 people.

3 0

4 years ago

Slips of paper are numbered 1 through 10. If one slip is drawn and replaced 40 times, how many times should the slip with number

Masja [62]

Hey there!

We have 10 pieces of paper. The probability of drawing a 10 is 1/10. Therefore, if we were to draw ten times, the ten should probably be drawn once. If we multiplied our number of drawings by four (10*4=40), our outcome of seeing our slip with the ten should also quadruple and become four times. (1*4=4)

I hope that this helps! Have an awesome day!

6 0

3 years ago

Kelly's bill at a restaurant came to $21.52. If

uranmaximum [27]

$3.87 for the 18% tip.

6 0

3 years ago

Scientists have discovered a vaccine for a debilitating disease. This year there were 570,000 reported new cases of the disease

Ket [755]

Answer: There are approximately 853827 new cases in 6 years.

Step-by-step explanation:

Since we have given that

Initial population = 570000

Rate at which population decreases is given by

$\frac{2}{3}$

Now,

First year =570000

Second year is given by

$570000\times (\frac{1}{3})$

Third year is given by

$570000(\frac{1}{3})^2$

so, there is common ratio ,

it becomes geometric progression, as there is exponential decline.

so,

$570000,570000\times \frac{1}{3},570000\times( \frac{1}{3})^2,......,570000\times (\frac{1}{3})^6$

a=570000

common ratio is given by

$r=\frac{a_2}{a_1}=\frac{1}{3}$

number of terms = 6

Sum of terms will be given by

$S_n=\frac{a(1-r^n)}{(1-r)}$

We'll put this value in this formula,

$S_6=\frac{570000(1-(\frac{1}{3})^6}{(1-\frac{1}{3})}\\\\=853827.16$

So, there are approximately 853827 new cases in 6 years.

6 0

3 years ago

A student used a compass and a straightedge to construct <img src="https://tex.z-dn.net/?f=%5Coverline%7BCE%7D" id="TexFormula1"

Luba_88 [7]

Answer:

2) ∠ACE ≅ ∠BCE

Step-by-step explanation:

Considering the complete question attached in Figure below, geometry shows that ∠ACB is bisected into two angles ∠ACE and ∠BCE and we know that bisection means to divide an angle into two equal angles. According to this the resultant angles ∠ACE and ∠BCE must be equal and congruent.

7 0

3 years ago