A
The Second Industrial Revolution was another great leap forward in technology and society. New innovations in steel production, petroleum and electricity led to the introduction of public automobiles and airplanes. You wanna know how everything began? Let's see
The Second Industrial Revolution, which began in the middle of 19th century (1850-1970). It was a period of growth for pre-existing industries and expansion of new ones; such as the steel, oil and electricity fields. The development of new technologies led to the introduction of two things that would change the world: public transport and planes.
During the Second Industrial Revolution, the existing manufacturing and production methods were improve. For instance, steel replaced iron in the building business. It was strong and it was cheap. So, it made possible to build rail lines at competitive cost and spread transportation. Steel also facilitated the construction of ships, skyscrapers and larger bridges.
Steel displaced iron because it was stronger and cheaper
Although the Second Industrial Revolution happened just a few years after the first Industrial Revolution, it was as big of a leap forward as its predecessor. If you are reading this now, surely you can't imagine a world without electricity! But at the time of the Second Industrial Revolution, this was the norm.
Faraday started playing with the idea of electricity. Then, a few years later, Edison and Swan perfected their design of a lightbulb which was practical for home use.
This, in addition to the appearance of the first efficient commercial electrical generators in the 1870s, made public electricity possible.
Swan took his incandescent lightbulbs to England. The English used Swan's lightbulbs to light Mosley Street in Newcastle upon Tyne. So, this was the first electrical street lighting installation in the world. Then, Swan gifted the Savoy Theatre in London with 1,200 of his lightbulbs. Thus making it the first public building to be lit entirely by electricity.
Mosley Street and the Savoy Theatre set the stage for the first large-scale power station. It was located at the Holborn Viaduct in London. Then followed the power station at Pearl Street in New York. Afterwards, Sebastian de Ferranti thought of "stepping down" high-voltage alternating current. De Ferranti's idea enabled the assembly line and mass production.
Answer:
Step-by-step explanation:
I think its C
One bottle contains 341 ml of juice. Céline buys 2 cases of 24 bottles of juice. Nicole buys 3 cases of 12 bottles of juice. Who has the most juice? How many more milliliters does this person have?
Answer: Celine, 4092 ml
Step-by-step explanation:
Given
1 bottle contains 341 ml Juice
Celine buys 2 cases of 24 bottles i.e. a total of 48 bottles
Nicole buys 3 cases of 12 bottles i.e. a total of 36 bottles
Amount of Juice Celine has
[tex]\Rightarrow 48\times 341=16,368\ ml[/tex]
Amount of Juice Nicole has
[tex]\Rightarrow 36\times 341=12,276\ ml[/tex]
Thus, Celine has more juice than Nicole
[tex]\Rightarrow 16,368-12,276=4092\ ml[/tex]
Celine has 4092 ml more than Nicole
graph the equation. y-4=-5x(x-1)
PLEASE help Will brainlist 50 points!!!!!!!!!!!!
Answer:
5/6
4/5
6/7
Step-by-step explanation:
Answer:
6 and 7; 1 and 4; 4 and 5
Step-by-step explanation:
a supplementary angle is when two angles added together equal 180 degrees. In other words, if two angles make a straight line when put together, they are supplementary.
What is the answer pls
Answer:
B x
C 20
E 100
Step-by-step explanation:
A pattern is made using identical rectangular lines.
11 cm
7 cm
Find the total area of the pattern.
Answer:
i think 18 since 11+7=18
i think this it is not corect 100%100
Describe a transformation or series of transformations that demonstrates the congruence between figures A and B.
Answer:
90 clockwise (or counterclockwise) rotation and then a reflection over the axis between the two shape (those two steps go in any order)
Step-by-step explanation:
for this lets mark the innermost point of each shape a (blue or A) and a' (red or B)* and the second point b and b'
here we see that the two shapes are in a position to where they seem reflected over a non-existent third diagonal axis, though this is not the case, we need to bring the shape into a position where it can be transformed to the quadrant of shape B and overlap the shape
so when you have a reflection over a diagonal axis, we can rotate or reflect the shape to a new quadrant, and perform the step thats not the first, so say we made a reflection over the X-axis, the shape is now in the lower half of the graph with shape B, from here we perform our last step wich is to rotate the shape into the quadrant of shape B in a clockwise motion, now a and a' overlap and b and b' overlap, same for c, c',d and d'
(*the ' in this case is called a prime symbol, when used, distinguishes two points or lines on a graph, A' = A prime)
Sam and Odel have been selling frozen pizzas for a class
fundraiser. Sam has sold half as many pizzas as Odel.
Together they have sold a total of 126 pizzas. How many
pizzas did Sam sell?
Answer:
Odel has sold 84 Pizzas and Sam has sold 42
Step-by-step explanation:
:p
how to solve this? 10x+4y < 12 8x-3y > 20
Answer: mmm
Step-by-step explanation:
mmm
Simplify this equation:
Answer:8
8/2− 2/5≈ 6.841572544
Step-by-step explanation:i hoep ite helps u
i thought of an integer.if i multiply it by itself you will get 9.What is my number
Answer:
Your number is 3
Step-by-step explanation:
3*3 is 9 and there are no other numbers multiplied by itself to get 9
Treys test score average decreased by 14 points this semester. Write a signed number to represent this change in average.
Answer:
[tex]-14[/tex]
Step-by-step explanation:
Given: Trey's test score average decreased by 14 points this semester.
To find: a signed number to represent this change in average.
Solution:
The decrease can be denoted by minus [tex](-)[/tex] sign and increase can be denoted by plus [tex](+)[/tex] sign.
So, a signed number to represent the change in test score average is [tex]-14[/tex]
Tan
Part A
What is the measure, in degrees, of ZPTR? Enter your answer in the bo
Answer:
[tex] \purple {\bold {m\angle PTR=136\degree}} [/tex]
[tex] \orange {\bold {m\angle PQR=68\degree}}[/tex]
Step-by-step explanation:
PS and RS are tangents to the circle with center T at points P and R. (given)
TP and TR are radii of the given circle.
[tex] \therefore PS\perp TP\: \&\: RS\perp TR[/tex]
(radius is perpendicular to the tangent)
[tex] \therefore m\angle TPQ= m\angle TRS =90\degree [/tex]
In quadrilateral SPTR
[tex] m\angle TPQ+ m\angle TRS+m\angle PSR +m\angle PTR=360\degree [/tex]
[tex] 90\degree+ 90\degree+44\degree +m\angle PTR=360\degree [/tex]
[tex] 224\degree +m\angle PTR=360\degree [/tex]
[tex] m\angle PTR=360\degree - 224\degree[/tex]
[tex] \purple {\bold {m\angle PTR=136\degree}} [/tex]
By inscribed angle theorem:
[tex] m\angle PQR=\frac{1}{2} \times m\angle PTR[/tex]
[tex] m\angle PQR=\frac{1}{2} \times 136\degree[/tex]
[tex] \orange {\bold {m\angle PQR=68\degree}}[/tex]
Using 2 step equations
4 ( 2y - 3 ) = 28
Answer:
y=5
Step-by-step explanation:
how do you simplify a fraction with an even numerator but an uneven denominator?
Answer:
You turn it into a fraction or decimal.
Step-by-step explanation:
What is the value of the expression shown?
407 - 16) + (-3)
Answer:
388
Step-by-step explanation:
i looked it up
How do you find the scale factor of each pair of similar triangles?
The scale factor of triangle M to N is 4/3
How to determine the scale factor?In the above similar triangles, the corresponding sides are:
M = 27 ft
N = 36 ft
So, the scale factor of M to N is:
Scale factor = N/M
This gives
Scale factor = 36/27
Evaluate
Scale factor = 4/3
Hence, the scale factor of triangle M to N is 4/3
Read more about scale factor at:
https://brainly.com/question/3457976
#SPJ6
Solve the system using substitution: {y=5x-21 y=-7x+15
Answer:
code lazar
Step-by-step explanation:
In the triangle shown, find the length of the hypotenuse.
If this question doesn’t get answered I’m gonna be stressed out even more. I don’t know any of the answers to any of these questions.
Just say yes if equivalent or no if not equivalent
5x and x + 5
Answer:
I am pretty sure there equivalent
Evaluate the expression for p= -3
64 - 9p
Enter only the simplified numerical value after substituting the
value for the variable and doing the math.
Answer:
The answer is 91.
Step-by-step explanation:
If p = -3, then your equation is 64 + (-9 × -3).
-9 times -3 is 27.
27 + 64 = 91
which is the correct answer and pls explain why
Note: Enter your answer and show all the steps that you use to solve this problem in the space provided.
An elevator on the 10th floor goes down 9 floors. Then it goes up 19 floors, down 3, and finally down 12. What floor does it end up on? Write an equation to show how you found your answer.
Answer: it will be subtract try all things possible
Step-by-step explanation:
Help me y’all! Need to turn this in tonight
10
Colin invests £1700 into his bank account.
He receives 10% per year simple interest.
How much will Colin have after 3 years?
Give your answer to the nearest penny where appropriate.
Answer:
£510
Step-by-step explanation:
Simple interest = (principal × rate × time) / 100
Principal = £1700
Rate = 10%
Time = 3 years
Simple interest = (principal × rate × time) / 100
= (1700 × 10 × 3) / 100
= 51,000/100
= 510
Simple interest = £510
Need help please! It's due today
Answer:12/5
Step-by-step explanation:
Pablo and max's follows a flight pattern approximatley modled by the equation h(t)=-8t^2+16t+2 where h(t)is their rocket's height in meters t seconds after launch. How many seconds was their rocket in the air
Answer: 2.11 s
Step-by-step explanation:
Given
Equation of rockets height is given by
[tex]\Rightarrow h(t)=-8t^2+16+2[/tex]
Height will be zero once the rocket lands on the ground
So, we can write
[tex]\Rightarrow h(t)=0\ \text{or}\ -8t^2+16t+2=0\\\Rightarrow 8t^2-16t-2=0\\\\\Rightarrow t=\dfrac{16\pm \sqrt{(-16)^2-4(8)(-2)}}{2\times 8}\\\\\Rightarrow t=\dfrac{16\pm \sqrt{320}}{16}\\\\\text{Neglecting negative value of t}\\\\\Rightarrow t=\dfrac{16+17.888}{16}=2.11\ s[/tex]
The rocket of height h(t) and modeled equation [tex]\rm h(t)=-8t^2+16t+2\\[/tex]
was in the air for 2.1 seconds.
What is a quadratic equation?The given equation is [tex]\rm h(t)=-8t^2+16t+2\\[/tex], where h(t) is the rocket's height in meters t seconds after launch.
In algebra, a quadratic equation is an equation that can be written in standard form as
[tex]\rm ax^{2}+bx+c=0}[/tex]
where x represents variable, and a, b, and c represent coefficient.
The given equation is
h(t) = 0
[tex]\rm h(t)=-8t^2+16t+2\\h(t)=-8t^2+16t+2 = 0\\[/tex][tex]\rm h(t)=-8t^2+16t+2\\[/tex]
The roots will be
[tex]\rm {\displaystyle t={\frac {-b\pm {\sqrt {b^{2}-4ac}}}{2a}}.}[/tex]
[tex]\rm {\displaystyle t={\frac {16\pm {\sqrt {(-16)^{2}-4\times 8\times 2}}}{16}}.}\\\rm {\displaystyle t={\frac {16\pm {\sqrt{320} }}{16}}}\\\rm {\displaystyle t={\frac{16+17.88}{16}\\[/tex]
Here, we have neglected the negative value of t
t = 2.1 seconds
So, the rocket of height h(t) and modeled equation [tex]\rm h(t)=-8t^2+16t+2\\[/tex]
was in the air for 2.1 seconds.
Here learn more about quadratic equations here:
https://brainly.com/question/2263981
What is the unit rate of 48 newspapers in 6 piles?
Answer:
[tex] \sf8 \: \frac{newspapers}{plie}\: or\: \text{8 newspapers per pile} [/tex]
Step-by-step explanation:
to understand thisyou need to know about:unit ratelet's solve:according to the question
48newspapers/6piles8 newspapers/plieAnswer:
Solution given:
48 newspaper in 6 pile=48news paper per 6 piles
=48/6=8 news paper per pile
the unit rate of 48 newspapers in 6 piles is 8 news paper per pile
Find the measure of the given angles. Show work!!
Answer:
m∠A = 45⁰
m∠B = 75⁰
Step-by-step explanation:
Given question 4;
m∠A = x + 51
m∠B = 81 + x
m∠C = 60⁰
The value of the missing angles can be determined by the finding the value of x first;
m∠A + m∠B + m∠C = 180⁰ (sum of angles in a triangle)
(x + 51) + (81 + x) + 60⁰ = 180
(x + x) + (51 + 81 + 60) = 180
2x + 192 = 180
2x = 180 - 192
2x = -12
x = -12/2
x = -6
Thus, the values of the angles are calculated as follows;
m∠A = x + 51
= -6 + 51
= 45⁰
m∠B = 81 + x
= 81 - 6
= 75⁰
Tonya pays $300 each month to rent an office where she earns $25 per hour tutoring students. Which equation represents Tonya’s profit, y, for working
x hours?
Answer:
y = 25x – 300
Step-by-step explanation:hope I helped
Pl pls helppp pls pls pls
Answer:
25 is one third of 75 and 30 is 2/5 of 75 is 30 so 5 more people voted for the cat in the hat
Step-by-step explanation: