Answer:
An echo is formed as a result of reflection of the original sound which returns to the listener. You might have experienced Echo in an EMPTY ROOM but no echo is produced after the room is occupied. To avoid echo from being produced the echo has to be absorbed. Echo in a cinema theatre is absorbed by the WALLS of the theatre.
They are not plain. The walls are corrugated or shaped to form tiny holes or empty spaces to ABSORB the ECHO. Modern Theatre's have ABSORBENT materials sticked to the walls of the theatre.
An echo is an unpleasant sound heard after a produced sound got reflected from a plain surface. It is majorly eliminated in a cinema theater by:
the use of sound absorbing materials in the construction of the wallsabsorption of sound waves by the body and cloths of viewers
Echo is a sound produced due to the reflection of a produced sound by a plain surface. Its continuous occurrence leads to reverberation. It causes distortion of produced sound which makes it unpleasant to hearing. Thus the need for a mechanism which would reduce it to a bearable level.
To reduce or eliminate echo, the walls of the cinema theater had been constructed with sound absorbing materials which may include special pads. These would have been incorporated into the walls, and would absorb most unwanted sounds produced in the theater.
Also the cloths worn by viewers absorbs some of the unwanted sound, thus assisting to indirectly reduce echo.
Visit: https://brainly.com/question/25709979
If A = lw, find the width of a rectangle with a length of 30 miles and an area of 210 square miles.
O 70 miles
7 miles
o miles
6300 miles
10
11
12
Answer:
Yes and no nor
Step-by-step explanation:
help please i really need it
Problem 1
Answer: x = 9
----------
Explanation:
For now focus on triangle DEF. We need to find the missing angle D.
D+E+F = 180
D+71+42 = 180
D+113 = 180
D = 180-113
D = 67
In order for DE to be parallel to GH, the alternate interior angles EDF and GHF must be congruent
Let's see what happens when we force them to be equal
angle EDF = angle GHF
67 = 5x+22
67-22 = 5x
45 = 5x
5x = 45
x = 45/5
x = 9
==========================================
Problem 2
Answers:
Converse: "if it is winter, then it is snowing"
Inverse: "If it is not snowing, then it is not winter"
Contrapositive: "If it is not winter, then it is not snowing"
----------
Explanation:
The original conditional is in the form "If P, then Q". The P and Q are placeholders for logical statements.
We then have the following forms
converse = "if Q, then P" (swap P and Q)inverse = "If not P, then not Q" (negate each)contrapositive = "If not Q, then not P" (do both inverse and converse operations)==========================================
Problem 3
Answer: choice B) "If the sum of two angles is not 180 degrees, then they aren't supplementary"
----------
Explanation:
Refer to problem 2 for the general form of the inverse. We negate each of the P and Q to get our final answer.
==========================================
Problem 4
Answer: Choice C) "If I do not need an umbrella, then it is not raining"
----------
Explanation:
Refer to problem 2 for the general form of the contrapositive. We swap P and Q, and negate each.
==========================================
Problem 5
Answer: Choice A) "If two lines have opposite slopes, then they are perpendicular"
----------
Explanation:
Refer to problem 2 for the general form of the converse. We swap the positions of P and Q.
(9,3) and (-4,-7) whats the slope
Answer:
10/13
Step-by-step explanation:
-7-(3)
----------
-4-(9)
help!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
32
Step-by-step explanation:
verticle angles ar3 congruent (the same) and 1 is apart of a vertical angle
At the amusement park, the Ferris wheel is located 95 feet east and 156 feet north of the entrance. The swings are located 23 feet west and 124 feet north of the entrance. If Jalen is standing exactly three-eights the distance from the Ferris wheel to the swings, to the nearest hundredth of a foot, find the direct distance between Jalen and the entrance.
Answer:
113.18
Step-by-step explanation:
[tex]\sqrt{113^{2}+32x^{2}[/tex]
SF=113.18
The direct distance between Jalen and the entrance is 144.6 feet.
What is distance?The distance of an object can be defined as the complete path travelled by an object .Distance is a scalar quantity that refers to "how much ground an object has covered" during its motion.
Given:
Place everything on an xy grid with the Entrance at (0,0).
Then the Ferris Wheel is at (95,156) and the Swings are at (-23,124).
Cody is halfway between them,
so he is at
(95-((95-(-23)/2)),156-(156-124/2) or (36,140).
The distance from Cody to the entrance, using Pythagoras, is square root of
(362+1402)
=144.6 feet
Therefore , the direct distance between Jalen and the entrance is 144.6 feet.
Learn more details about distance here:
https://brainly.com/question/15172156
#SPJ2
WIll Give brainly and 100 POINTS!
A system of linear equations is shown below
(y=2x+1
(y=-1/4x+3
Which eqution can be used to determine the value of x for the solution
A: 2x+1= -1/4x+3
B: 2x+1= -1/4x-3
C: 2x+1= 1/4x-3
D: 2x+1= 1/4x-3
Answer:
A: 2x+1= -1/4x+3
Write this rate as a unit rate 7/5 miles 2/3 hour
Answer:
3.5 miles per hour
Step-by-step explanation:
7 miles ÷ 2
2 hours ÷ 2
=
3.5 miles
1 hour
=
3.5 miles
hour
= 3.5 miles per hour
Please help I’ll give brainiest!!
Answer:
-1
Step-by-step explanation:
Students were asked to solve the following equation:
-5x+2=-13
Answer:
3
Step-by-step explanation:
Step 1:
- 5x + 2 = - 13 Equation
Step 2:
- 5x = - 15 Subtract 2 on both sides
Step 3:
x = - 15 ÷ - 5 Divide
Answer:
x = 3
Hope This Helps :)
Help please! I was absent the day we talked about this and im super confused.
Answer: It may be 25 or 101
Step-by-step explanation:
ILL GIVE BRAINIEST TO WHOEVER IS CORRECT!! PLEASE HELP ASAP!!
Write an equation of a line in a standard form that passes through points A(-3,4) and B(1,-2) with work using the equation y-y1=m(x-x1) for #4 and the equation y2-y1 over x2-x1 for #5
Answer:
Step-by-step explanation:
6-x / 3 = 8 I need help
The label on a juice carton says there are 50 calories in a 4-ounce serving of juice.
Arthur drinks 12 ounces of juice.
How many calories will he consume?
A.48 calories
B.58 calories
C.150 calories
D.200 calories
Answer:
C. 150 calories
Step-by-step explanation:
I hope his helps. Have a good day!
Help will be appreciated?
What is the equation of the line passing through the points (2, -1) and (5, -10) in slope-intercept form?
A. y=-3x-5
B. y=-3x+5
C. y=3x-5
D. y=3x+5
Answer:
b. y=-3x+5
Step-by-step explanation:
If you find the slope(y-y/x-x) I found that the slope is -3. from using the slope and graphing this out, the y-intercept is +5 giving me the answer of y=-3x+5.
I hope this helps have a great day:)
Answer:
y = -3x + 5
Step-by-step explanation:
The answer is correct because I just took the test and I got a 100%.
14) -8p - 34 = 6p + 50
Answer:
-6
Step-by-step explanation:
-8p - 34 =6p +50
-8p - 6p =50 +34
-14p =84
p=-84 :14
p=-6
To multiply the binomials, multiply each term of (x + 1) by each term of (x + 2). Fill in the blanks with the
result.
Answer: x(x) + x(2) + 1(x) + 1(2)
The simplified product is x² + 3x + 2
Hope this helps!
Answer:
Step-by-step explanation:
Rena’s grandfather opened a savings account as a college fund for her. His initial deposit and the yearly simple interest rate are shown.
A college graduate is shown walking up stairs. The bottom step represents three thousand five hundred dollars. The value of the top step is unknown. The distance up the stairs is labeled four years. The simple interest rate is three point two five percent.
How much will Rena have in this account after 4 years?
Enter the correct answer in the box.
Answer:
Total amount (A) = $3,955
Step-by-step explanation:
Given:
Initial deposit (P) = $3,500
Rate of interest (r) = 3.25%
Number of years (t) = 4
Find:
Total amount (A)
Computation:
Simple interest = (p)(r)(t)
Simple interest = (3,500)(3.25)(4)
Simple Interest = $455
Total amount (A) = Initial deposit (P) + Simple Interest
Total amount (A) = 3,500 + 455
Total amount (A) = $3,955
Tate started at -12 on a number line and drew a line to -25. How long is the line he drew?
Answer:
-13
Step-by-step explanation:
-25-(-12)
You have an ant farm with 25 ants. The population of ants in your farm will double every 3 months. The table shows the population growth of the ants over nine months. Decide whether the table represents a linear function or a nonlinear function. After one year, how many ants will there be in the ant farm
Answer:
Linear - 400 AntsStep-by-step explanation:
0 Months - 25 Ants
3 Months - 50 Ants
6 Months - 100 Ants
9 Months - 200 Ants
12 Months - 400 Ants
Hope this helps! <3
You are a contractor and charge $65 for a site visit plus an additional $15 per hour for each hour you spend working at the site. Write and solve an equation to determine how many total hours you have to work to earn $950 working at two separate work sites.
Answer:
54.6 hours
Step-by-step explanation:
65x2 is 130 130-950 is 820 then 820 divided by 15 is 54.6 therefore meaning you have to work 54.6 hours to get 950$ you can check this by doing 54.6x15+130, might not be exact because i rounded to the nearest tenth.
Hope this helps!
Mr. Anderson had 4/5 of a pizza left over and split it among his 4 children. What fraction of the pizza did each child get?
Answer:
1
Step-by-step explanation:
there were 5 pieces now there is 4. so 4 slices of pizza divided by 4 is 1
Identify the property being demonstrated for each expression
3 + (5 + 7) = (3 + 5) + 7
(associative property or commutative)
5 + 0 = 5
(associative property or commutative)
Answer:
1. associative. 2. commutative. 3. identity.
Step-by-step explanation:
hope this helps :)
Answer:
A,B,D
Step-by-step explanation:
y=4x+8x, Solve for x.
It's x=y/12, I just need to know how to work it out.
Step-by-step explanation:
Answer:-[tex]\tt{y = 4x+8x}[/tex]
First, we need to add up the x.
We know that 4+8 = 12, so
[tex]\tt{4x+8x=12x}[/tex]
Now, equating it to y,
[tex]\tt{y = 12x}[/tex]
Now, if I multiply [tex]\tt{\dfrac{1}{12}}[/tex] on both sides,
I get,
[tex]\tt{\dfrac{y}{12}= \dfrac{\cancel{12}x}{\cancel{12}}}[/tex]
Now, as 12 got cancelled , I got the final answer as
[tex]\boxed{\tt{x =\dfrac{y}{12}}}[/tex]
Hope it helps :)
share 50 marbles in the ratio 2:3 between Alex and joshua.How many marbles does each boy receive?
Select the correct answer from each drop-down menu.
Consider this polynomial equation.
6(x - 3)(x2 + 4)(x + 1) = 0
Use the equation to complete this statement.
The equation has
solutions. Its real solutions are a
Answer:
This equation has 4 solutions, its real solutions are x = -1 and 3
Step-by-step explanation:
Correct for Plato Users
The equation has 4 solutions and its real solutions are 3, -1.
The given polynomial equation is 6(x - 3)(x² + 4)(x + 1) = 0.
What does a real solution mean in math?A real solution in algebra is simply a solution to an equation that is a real number.
Now, 6(x - 3)(x² + 4)(x + 1) = 0
⇒(x - 3)(x² + 4)(x + 1) = 0
⇒(x - 3)=0, (x² + 4)=0 and (x + 1) = 0
⇒x=3, -1 and ±√-4.
Therefore, the equation has 4 solutions and its real solutions are 3, -1.
To learn more about the polynomial equation visit:
https://brainly.com/question/20630027.
#SPJ5
explain why a scale of 1/2 inch to 1 foot is equivalent to a scale of 1:24
Answer:Becauss it turns into a whole number and 1:24 is what u need to get to the whole
Step-by-step explanation:
Help me please i’m dying and i’m just dying help
Answer:
70
Step-by-step explanation:
verticle angles are congruent (the same) so if 1 is 110 than 4 is 110. also same side interior angles are supplementary (equal to 180) meaning 6 is 70. If verticle angles are congreunt then 7 also equals 70
4x + 5 + 2x > 5x - 7
Answer: x > -12 Is the answer
Answer:
X>-12
Step-by-step explanation:
Hope this helps. Plz give brainliest
select all of the equations equivalent to 7x/3 = 14
A: 5x - 23 = 7
B: x - 4 = 2
C: 2x = 14
D: x - 4 = 0
Answer:
A and B
Step-by-step explanation:
I found the number that makes the 7x/3=14 statement correct that number is. Then I plugged 6 into the other equations
these were the correct ones
5•6-23=7
6-4=2
these are the wrong ones
2•6=14
6-4=0
