A parallelogram has an area of 216.24 cm2

and a height of 15.9 cm.

How long is the base of the parallelogram?

Enter your answer as a decimal in the box.

Answers

Answer 1

Answer:

200.34 cm²

Step-by-step explanation:

Answer 2

Answer:

13.6 cm

Step-by-step explanation:

The area (A) of a parallelogram is calculated using the formula

A = bh ← b is the base and h the height

here A = 216.24 and h = 15.9, hence

15.9b = 216.24 ( divide both sides by 15.9 )

b = [tex]\frac{216.24}{15.9}[/tex] = 13.6 cm


Related Questions

factorization for the monomial
[tex]48x^{10}[/tex]

Answers

Answer:

Some of the possible factorizations of the monomial given are:

[tex](16x^5)(3x^5)[/tex]

[tex](48x)(x^9)\\\\(4x^5)(12x^5)\\\\(16x^2)(3x^8)\\\\(2x^2)(4x^7)(6x)[/tex]

Step-by-step explanation:

 To factorize the monomia you need to express it as a product of two or more monomials.  Therefore, you must apply the proccedure shown below:

- Descompose into prime numbers:

[tex]48x^{10}=2*2*2*2*3*x*x*x*x*x*x*x*x*x*x[/tex]

- Then, keeping on mind that, according to the Product of powers property, when you have two powers with equal base you must add the exponents, you can make several factorizations.  Below are shown some of the possible factorizations of the monomial given:

[tex](2^4x^5)(3x^5)[/tex]

[tex](48x)(x^9)\\\\(4x^5)(12x^5)\\\\(16x^2)(3x^8)\\\\(2x^2)(4x^7)(6x)[/tex]

Answer with step-by-step explanation:

We are given the following monomial and we are to factorize it:

[tex] 4 8 x ^ { 10 } [/tex]

We have a number of options that we can opt for in order to factorize the given monomial:

[tex] ( 16 x ^ 2 ) ( 3 x ^ 8 ) [/tex]

or

[tex] ( 12 x ^ 5 ) ( 4 x ^ 5 ) [/tex]

or

[tex] ( 24 x ^ 3 ) ( 2 x ^ 7 ) [/tex]

So basically it depends how do you want to break the coefficient and the exponent in order to get a product of [tex] 4 8 x ^ { 10 } [/tex].

what is a reasonable estimate for the problem?
-3/2 * (-5 1/4)

Answers

Answer:

See the image attached for solution

What Is The Missing Angle Measure of This Irregular Quadrilateral​

Answers

Answer:

the sum of the angles in a quadrilateral is 360 degrees

Step-by-step explanation:

360 - (60 + 150 + 70) = 360 - 280 = 80 degrees

how do i find the area of this shape and you tell me step by step​ it says find the area of the shaded region

Answers

First, you need to find out the are of the whole rectangle, which as you probably know, you just need to multiply base by height.

Then, you need to substract the are of the two little squares, which luckily are both the same size. To find out the are of a square you multiply a side twice.

Therefore,

Whole rectangle area:

(32+8) * (8+8) = 40 * 16 = 640 sq. ft.

Two small squares:

2 * (8 * 8) = 2 * 64 = 128 sq. ft.

We substract:

640 - 128 = 512 sq. ft.

Answer:

512

Step-by-step explanation:

i fond the area of the whole big rectangle , so to do this i did 32+8 because i needed to find length. then i found the width, which was 8+8, 16. to find area , i need to multiply with times height so i did 40 x 16. this gets me to 640, but now i need to take out the two smaller cubes since i included them when i found the are of the rectangle. since the sides of both squares are 8 by 8, we can do 8 x 8 x 2 to find the area of both of them. now we taake 128(the product of 8 x 8 x 2) and subtract it from the big rectangle with the area of 640. 640-128 is 512.

2x-y=4
3y-3x=6
How do I graph this

Answers

Step-by-step explanation:

Put y's on the one side and divided by what they have in the front so it would be

y=2x-4

and

y=x+2  

and they y intercept for first one is -4

and slope is 2 which it goes up twice and goes right once because its positive

second one, y intercept is 2

and slope is 1 goes one up and one right because it is positive

Answer:

See the attached image

Step-by-step explanation:

You must graph the system of equations. To do so, find the intersection points of each line with the axes.

2x-y=4   intersection with the x axis. -----y=0

2x = 4

x = 2.

2x-y=4   intersection with the y axis. -----x=0

-y = 4

y = -4.

Now we have

3y-3x=6     intersection with the x axis. -----y=0

-3x = 6

x = -2

3y-3x=6     intersection with the y axis. -----x=0

3y = 6

y = 2.

Now you can graph both lines. The solution the system will be the intersection of both lines

what is the surface area of the rectangular prism please explain i failed my last session and im just trying to get through this without any mistakes​

Answers

Answer:

B. 250 ft²

Step-by-step explanation:

We have two squares S × S and four rectangles S × L.

S = 5 ft and L = 10 ft.

The area of a square:

[tex]A_s=(5)(5)=25\ ft^2[/tex]

The area of a rectangle:

[tex]A_r=(5)(10)=50\ ft^2[/tex]

The Surface Area:

[tex]S.A.=2A_s+4A_r[/tex]

Substitute:

[tex]S.A.=2(25)+4(50)=50+200=250\ ft^2[/tex]

A parking lot is 20 yards wide and 30 yards long. If the college increases the length and width by the same amount to handle and increasing number of cars, then what polynomial represents the area of the new lot?

Answers

Answer:

x² + 50x + 600

Step-by-step explanation:

The length changes from 20 yards to 20 + x. The width changes from 30 to 30+x.

The area will be A = l*w = (20+x)(30+x).

Use the distributive property to find the polynomial simplified.

A = (20+x)(30+x) = 600 + 30x + 20x + x² = 600 + 50x + x²

Write the polynomial in descending order by writing the exponents first.

x² + 50x + 600

Final answer:

The polynomial representing the area of the new parking lot would be 600 + 50x + x^2 square yards, where x is the amount by which both the length and width are increased.

Explanation:

The area of the initial parking lot can be computed using the formula for the area of a rectangle, which is length times width. In this case, the area would be 20 yards times 30 yards, or 600 square yards.

If we let x be the amount by which both the length and the width are increased, the new length becomes 30 + x yards, and the new width becomes 20 + x yards.

Therefore, the polynomial representing the area of the new parking lot would be (30+x)(20+x), which equals 600 + 50x + x^2 square yards.

Learn more about area of the new parking lot here:

https://brainly.com/question/31653042

#SPJ3

In the diagram, what is the value of x?

A. 78°
B. 108°
C. 98°
D. 82°

Answers

The unknown measure of the angle x is (c) 98 degrees

Finding the unknown measure of the angle x

From the question, we have the following parameters that can be used in our computation:

The lines (see attachment)

By definition, the sum of angles on a line is 180

using the above as a guide, we have the following:

x + 82 = 180

So, we have

x = 180 - 82

Evaluate

x = 98

Hence, the solution is (c) 98 degrees

Read more about angles at

https://brainly.com/question/31898235

#SPJ1

There are 884 students enrolled at a certain college. The number of students from Indiana is exactly three times the number of students from the rest of the country and abroad. Write a pair of linear equations to represent the information. Be sure to state what the variables represent. Find the number of students who are from from Indiana. Show your work.

Answers

Answer:

Let the no. Of students from Indiana be x

Let the no. Of students from the rest of the country and abroad be y

x = 3y (Given) (i)

x + y = 884 (Given) (ii)

Subtract equation (ii) from 1

x -3y = 0

-(x+y = 884)

-4y = -884

Therefore y = 221

Therefore no. Of students from the rest of the country and abroad is 221

Substituting the value of y in (i)

x = 3 x 221

Therefore x = 663

Therefore no. Of students from Indiana is 663

Hope this helps!

A circle has a circumference of 7,850 units. What is the radius of the circle

Answers

Answer: Radius = 1,250

Step-by-step explanation: The circumference of a circle equals the 2 x radius x π.

The formula to solve the radius is 2r x 3.14 = 7,850

Divide both sides by 3.14 = 2r = 2,500

Divide both sides by 2 = r = 1,250.

The radius = 1,250

Answer: 1,250 units

Step-by-step explanation:

Which of the below statements is false?

Answers

Answer:

A and C

Step-by-step explanation:

The area formulas for the shapes area as follows:

Triangle, Kite, Rhombus A = 1/2 bhTrapezoid A = 1/2(b1 + b2)hParallelogram, rectangle and square A = bh

Knowing this, you can see that rhombus and trapezoids have different formulas then other quadrilaterals. This means A and C can be considered false.

if cos^2(6x)-sin^2(6x)=cos(B)
then B=?​

Answers

Answer:

[tex]B=12x[/tex]

Step-by-step explanation:

Given: [tex]cos^2(6x)-sin^2(6x)=cos(B)[/tex]

Let's simplify the left part of the equation:

[tex]cos(12x)=cos(B)[/tex]

Solve for B:

[tex]B=12x[/tex]

Final answer:

To find the value of B for the given equation, we employ the cosine double angle identity, which leads us to determine that B equals 12x or 12x ± 2kπ, considering the periodic nature of the cosine function.

Explanation:

The question asks us to find the value of B given that cos2(6x) - sin2(6x) = cos(B). This expression can be rewritten using a trigonometric identity, the cosine difference identity, which states that cos(A) - cos(B) = -2sin((A+B)/2)sin((A-B)/2). However, in our case, we use the cosine double angle identity, which states that cos(2θ) = cos2(θ) - sin2(θ). Applying this identity to the given expression gives us cos(12x) = cos(B). Therefore, B = 12x or B = 12x ± 2kπ, where k is an integer, because the cosine function is periodic with a period of 2π.

If the location you want to go is 270 miles away and you want to get there in 4.5 hours, at what constant speed do you need to drive?

Answers

Answer:

Step-by-step explanation:

60 mph hope that helps

what are the solutions of the quadratic function 49x2=9

Answers

Answer:

49x^2 - 9 = 0As there is no x term, we can pretty much guess we have a situation where we factlrise by something known aa difference of two squares, so to factorise it:49 = 7^29 = 3^2x^2 = (x)^2so...(7x - 3)(7x + 3) = 07x - 3 = 0 7x + 3 = 0x = 3/7 x = -3/7

Step-by-step explanation:

49x² = 9

Divide both sides by 49:

x² = 9/49

Take the square root of both sides:

x = +/- √9/49

Simplify:

x = -3/7 and 3/7

Marie is making a recipe that calls for 1 1/4 cups of oil. How many fluid ounces of oil should she use?

A. 5 fl oz
B. 20 fl oz
C. 9 fl oz
D. 10 fl oz

Answers

Answer:

D

Step-by-step explanation:

1 cup = 8 fluid ounces.

1.25 cups = 8 fluid ounces + 1/4 of 8.

1/4 of 8 = 2

8 + 2 = 10.

10 fluid ounces should be used.

Answer:

d

Step-by-step explanation:

i had the question

Can someone please help me with this thank you!!


Given: m

EL=(2x)°, m

LG=(3x)°, m

GF=(4x−8)°, m

FE=(x−12)°

Find: m∠LTE

Answers

Answer:

1. add up all of the arcs.

2x+3x+4x-8+x-12

2. all of the arcs equal 360

2x+3x+4x-8+x-12=360

3. Find x

10x-20=360, x=38

4. angle LTE is equal to half of the sum of the intercepted arcs.

.5(arc LE +GF)

5. plug in LE +GF with x

.5(76+144)

LTE=110

Applying the angles of intersecting chords theorem, m∠LTE = 110°.

What is the Angles of Intersecting Chords Theorem?

When two chords intersect inside a circle, according to the angles of intersecting chords theorem, the vertical angle formed equals the half the sum of the measures of the intercepted arcs.

Given the following:

EL=(2x)°LG=(3x)°GF=(4x−8)°FE=(x−12)°

A full circle = 360°

Therefore we would have:

2x + 3x + 4x - 8 + x - 12 = 360

Add like terms

10x - 20 = 360

10x = 360 + 20

10x = 380

x = 38

Based on the angles of intersecting chords theorem, we have:

m∠LTE = 1/2(EL + GF)

Substitute

m∠LTE = 1/2(2x + 4x - 8)

m∠LTE = 1/2(6x - 8)

Plug in the value of x

m∠LTE = 1/2(6(38) - 8)

m∠LTE = 1/2(220)

m∠LTE = 110°

Learn more about the angles of intersecting chords theorem on:

https://brainly.com/question/1626547

assume f(x)= -2x+8 and g(x)=3x what is the value of (gof)(3)

a. x+8
b. 23
c. -10
d. 6

Answers

ANSWER

d. 6

EXPLANATION

The given functions are

[tex]f(x) = - 2x + 8[/tex]

and

[tex]g(x) = 3x[/tex]

We find

[tex](g \circ f)(x) = g(f(x))[/tex]

[tex](g \circ f)(x) = g( - 2x + 8)[/tex]

[tex](g \circ f)(x) = 3( - 2x + 8)[/tex]

[tex](g \circ f)(x) = - 6x + 24[/tex]

We now substitute x=3

[tex](g \circ f)(3) = - 6(3) + 24[/tex]

This gives us

[tex](g \circ f)(x) = - 18 + 24[/tex]

[tex](g \circ f)(3) = 6[/tex]

The correct choice is D.

Answer:

Step-by-step explanation:

6

Type the correct answer in the box. Use numerals instead of words. If necessary, use / for the fraction bar. The graph of a linear equation passes through three of these points: (0, 5), (2, 2), (3, 1), and (4, -1). The point that the graph does not pass through is

Answers

Answer:

(3,1)

Step-by-step explanation:

Calculate the rise-over-run ratio to find the slope between the points.

r/r between 0,5 and 2,2 was -3/2

r/r between 2,2 and 4,-1 was -3/2

r/r between 0,5 and 4,-1 was -6/4 = -3/2

r/r between 0,5 and 3,1 was -4/3

r/r between 2,2 and 3,1 was -1/1

as you can see the r/r for the points involving 3,1 was inconsistent with the rest, therefore it is not part of the linear system.

The point that the graph does not pass through is (3 ,1)

What is an equation?

An equation is a mathematical statement which equate two algebraic expressions. An equation has an equal to (=) sign in between the expression.  

What is a linear equation?

An equation in which the slope is constant is called a linear equation.

What is slope?Slope is the measure of the line's inclination towards horizontal.Slope of a line joining points (a,b) and (c,d) can be found with the formula:     [tex]\frac{d - b}{b-a}[/tex] How to find point through which the graph does not pass ?The graph is linear. So the slope should be constant.

Slope of the graph between points (0, 5), (2, 2) =   [tex]\frac{2-5}{2-0} = -\frac{3}{2}[/tex]

Slope of the graph between points (2, 2) , (4, -1) = [tex]\frac{-1-2}{4-2} = - \frac{3}{2}[/tex]

Slope of the graph between points (0, 5), (4, -1) =  [tex]\frac{-1-5}{4-0} = -\frac{-6}{4} = - \frac{3}{2}[/tex]

Slope of the graph between points (3, 1) , (0, 5) = [tex]\frac{5-1}{0-3} = - \frac{4}{3}[/tex]

Slope of the graph between points  (3, 1) ,  (2, 2) = - 1

Slope of the graph between points  (3, 1) , (4, -1) = -2

   We can see that the slope is constant for the points (0, 5), (2, 2), (4, -1), and inconsistent for the point (3 , 1) with every other points.

So, we can say the graph is not passing through the point (3 , 1).

Find out more details on "Linear equation graph" here: https://brainly.com/question/14323743

#SPJ2

A fast typist can type 120 words in 100 seconds. At that rate, how many seconds would it take to type 258 words?

Answers

Answer: 215 seconds

Step-by-step explanation:

This is a ratio problem so you can set up the ratio like this:

120 words : 100 second.

If you divide both sides of the ratio by 120 you get:

1 word: 0.8333 seconds

Multiply both sides of the ratio by 258 and you get:

258 words: 215 seconds.

Therefore typing 258 will take them 215 seconds.

This will take 215  seconds  to type 258 words.

This problem is solved by the concept of unitary method.

Given that  Typist types 120 words in 100 seconds

so in one second he types 120/100 words = 1.2 Words per second

let us suppose he types  258 words in 'x' seconds  

so in one second he types 258/x words

258/x = 1.2  

x = 258/1.2  

x = 215 seconds  

For more information, please refer to the following link  

https://brainly.com/question/19423643

A librarian put 33 books back on the shelves before lunch. Of the books, 11 were non-fiction. What is the ratio of the number of non-fiction books to the total number of books the librarian put away before lunch?

A.
3 to 1
B.
1 to 3
C.
1 to 2
D.
2 to 1

Answers

The answer is A, there are 3 books to every 1 non fiction book.

Answer:

I think it's  B  but I'm not sure hope this helped. <3

Step-by-step explanation:

The probability that the first color is violet and the second is orange, if the first is replaced is?

Answers

If the crayons are replaced after they are drawn, the probability of drawing any particular color is 1/7.Also the result of each draw is independent of any previous result. Therefore the solution to the first part of the question is found from:P(violet\ then\ orange)=\frac{1}{7}\times\frac{1}{7}=\frac{1}{49}

If the crayons are not replaced after they are drawn, the probability of drawing violet on the first pick is 1/7. Then there are only six crayons left, so the probability of drawing orange is 1/6. The solution to the second part of the question is found from:

P(violet\ then\ orange)=\frac{1}{7}\times\frac{1}{6}=\frac{1}{42}

Does this help

help me please asap!

Answers

Answer:   [tex]\bold{\dfrac{3}{2}}[/tex]

Step-by-step explanation:

[tex]\dfrac{12z^2}{2y^2}\\\\\\y = -2\quad z=-1\\\dfrac{12(-1)^2}{2(-2)^2}=\dfrac{12(1)}{2(4)}=\dfrac{12}{8}\\\\\\\dfrac{12}{8}\div \dfrac{4}{4}=\boxed{\dfrac{3}{2}}[/tex]

The coordinates of PQR are P(1, 1), Q(2, 2), and R(3, 1). If PQR is rotated 90° about the origin, what are the vertices of P'Q'R'?

Answers

Answer:

(-1, 1), (-2, 2), and (-1, 3)

Step-by-step explanation:

The formula for rotation of a point (x,y) by an angle θ about the origin is  

x' = xcosθ  -  ysinθ

y' = ycosθ + xsinθ

If θ = 90°, sinθ = 1 and cosθ = 0, and the formula becomes

x' = -y

y' =  x

P: (1, 1)   ⟶ (-1,  1)

Q:(2, 2) ⟶ (-2, 2)

R: (3, 1) ⟶  (-1,  3)  

The vertices of P'Q'R' are (-1, 1), (-2, 2), and (-1, 3).

The Figure below shows the triangle before and after the rotation.

Use this graph of the quadratic function y=x^2+4x-5 to solve the equation x^2+4x-5=0

Answers

Answer:

-5 and 1

Step-by-step explanation:

Ask yourself these questions:

Where does the graph cross the X axis?  Or,

At what x's is y=0?

Plz help me i need it

Answers

Answer:   25x⁴ - 49

Step-by-step explanation:

  (5x² - 7)(5x² + 7)

= 5x²(5x² + 7)  - 7(5x² + 7)

= 25x⁴ + 35x² - 35x² - 49

= 25x⁴ + (       0      )  - 49

= 25x⁴ - 49

A wall tile is two different colors. What is the area of the white part of the tile? Explain how you found your answer.​ I need help pls

Answers

Answer:

11

Step-by-step explanation:

5.5 x 4= 22 divided by 2= 11

Final answer:

To compare the area of two squares, calculate each area by squaring the length of a side, then form a ratio. A square with a side length twice that of another has four times the area.

Explanation:

Calculating the Area of a Square and Comparing to Another Square

To calculate the area of a square, you need to multiply the length of one side by itself since all sides of a square are equal in length. If we have a square with a side length of 4 inches, its area would be 4 inches × 4 inches = 16 square inches. Now, if we take another square with dimensions that are twice the first square, its side length would be 8 inches.

The area of this larger square is 8 inches × 8 inches = 64 square inches. When we compare the area of the larger square to the smaller one, we create a ratio. The ratio of their areas is 64 to 16, or simplified, 4 to 1. This means the larger square has an area that is four times as big as the area of the smaller square.

x is 110% of 10, y% of 50 is 3.5

Answers

Step-by-step explanation:

Set up a proportion.

x/10=110/100

x=11

Set up a proportion.

3.5/50=y/100

y=7

Fred is walking to the park after school. After playing ball at the park with his friends, he will be walking to his grandmother's house for dinner. There are six different routes from his school to the park and seven routes from the park to his grandmother's house. How many different ways can Fred walk from the school to the park and then from the park to his grandmother's house? A. 7 B. 42 C. 13 D. 45

Answers

Answer: 6 x 7 = 42

Step-by-step explanation: I believe this is because there are 6 different ways from the school to the park and seven routes from the park to his grandmother's house. To find the total you multiply 6 and 7.

Can someone help and show the work please

Answers

Answer:

A = 75 in²

Step-by-step explanation:

We have the rectangle and the right triangle.

The formula of an area of a rectangle:

A = lw

l - length

w - width

We have l = 10 in and w = 5 in. Substitute:

A = (10)(5) = 50 in²

The formula of an area of a triangle:

A = 1/2 bh

b - base

h - height

We have b = 5 in and h = 5 in + 5 in = 10 in. Substitute:

A = 1/2(5)(10)=1/2(50)=25 in²

The area of figure:

A = 50 in² + 25 in² = 75 in²

What is the scale factor of triangle ABC to triangle DEF?

Answers

The scale factor of triangle ABC to triangle DEF is 1/6.

Compare corresponding side lengths:

I observed that a side length of triangle ABC (2 units) is 6 times smaller than the corresponding side length of triangle DEF (12 units).

This initial comparison hinted at a scale factor of 1/6.

Checked other side lengths:

To confirm, I verified that the other side lengths also have a ratio of 1/6.

AB = 2 units, DE = 12 units (2/12 = 1/6)

AC = 4 units, DF = 24 units (4/24 = 1/6)

BC = 2 units, EF = 12 units (2/12 = 1/6)

Since all corresponding side lengths have a ratio of 1/6, this confirms that triangle ABC is a scaled-down version of triangle DEF with a scale factor of 1/6.

Complete question:

Other Questions
Explain the role of U.S. Investors in Latiin American economies and the role of the oligarchy in Argentina and Brazil. How are breathing retraining techniques similar to relaxation techniques?a. both involve instructions on breathing control.b. they are not similar.c. both teach clients how to reduce control over multiple physiological effects.d. both involve progressive relaxation of specific muscle groups? Do the differences between the mainland and island anoles support the theory of ecomorph evolutionary convergence? Why or why not? A.No, because the mainland and island anoles are not closely related to each other; they merely evolved to appear superficially similar. B.No, because the mainland anoles experienced only slightly different selective pressures they did not evolve with similar physical and behavioral characteristics. C.No, because there is not enough data about the mainland and island anoles to determine if they support the theory of ecomorph evolutionary convergence. D.Yes, because the mainland anoles experienced different selective pressures they evolved with different physical and behavioral characteristics. SUBMIT FOR GRADING SAVE AND FINISH LATER I will pay someone to do my economics on apex and finish by May 24th. I can't let my mom down I have to graduate this year. If interested please comment and I will get your number and give you info. Please and thank you. What cellular organelle is responsible for modifying, sorting, and packaging proteins and lipids? HELPWhen 400 J of heat is added to 5.6 g of olive oil at 23*C, the temperature increases to 87*C. What is the specific heat of the olive oil? (Show all work including the equation you use to solve). (3 points). Can someone explain to me how to do this? : 8^2y+4 = 16^y+1 suppose f(x)=x^2 and g(x)=(1/5x)^2. Which statement best compares the graph of g(x) with the graph of f(x)? what must all scientists begin with Factor this trinomial: x22x24 Then, select both correct factors below.Question 4 options:(x6)(x4)(x2)(x+6)(x+4) These organisms have similar features that are considered what kind of structure what were two positive impacts of the industrial revolution?" Which sentence contains an example of precise language?Question 10 options:a) To achieve at the highest levels, an athlete must practice, an athlete must listen to constructive criticism, and an athlete must monitor his or her health.b) To achieve at the highest levels, an athlete must eat well and practice.c) To achieve at the highest levels, an athlete must use his or her mind.d) To achieve at the highest levels, an athlete must practice, listen, and be in good health. According to Maslow's hierarchy of needs, which of the following is a lower-order need?A) socialB) safetyC) esteemD) self-actualizationE) recognition The associative property does not work for which operations? Check all that apply pls help will give brainliest and 5star plssssss to produce 4.00 L of a 250 mM solution of sodium hydroxide, how many grams of naOH must be dissolved? The volume of a rectangular prism has a volume of 42 cubic units the length is 3 units the width is 2 units what is the height The main difference between European colonies and protectorates in Africa had to do with their A. economiesB. governmentsC. social organizations D. levels of technology All faculty members are happy to see students help each other. Dumbledore is particularly pleased with Hermione. Though, it should be mentioned that students should not simply copy off each other. You will not learn anything that way. Snape glares at Ron... Ron slouches in his chair. Snape thinks its time for a harder problem. How many milligrams of magnesium reacts with excess HCl to produce 31.2 mL of hydrogen gas at 754 Torr and 25.0C. The hydrogen is produced by the following reaction: Mg(s) + 2HCl(aq) MgCl2(aq) + H2(g) Express your answer in milligrams Steam Workshop Downloader