Automobile engineers create quieter cars and trucks by designing acoustic glass that-
A. Transmits sounds
B. Reflects sounds
C. Absorbs sounds
D. Amplifies sounds
Answers
Answer:
C. Absorbs sounds
Step-by-step explanation:
HOPE THIS HELPS GOOD LUCK
Related Questions
The length of a rectangle is shown below:
On a coordinate grid from negative 6 to positive 6 on the x-axis and on the y-axis, two points A and B are shown. The point A is on ordered pair 1, 3, and the point B is on ordered pair negative 3, 3. A straight line joins the points A and B.
If the area of the rectangle to be drawn is 20 square units, where should points C and D be located, if they lie vertically below the line that connects B and A, to make this rectangle? (5 points)
Group of answer choices
C(−3, −2), D(1, −2)
C(−3, −1), D(1, −1)
C(−3, −7), D(1, −7)
C(−3, −5), D(1, −5)
Answers
Solve the following equations.
1.) 1/5x - 2 = -3
2.) 15 = 10 - x/4
3.) x/3 - 12 = -2
4.) x/-2 + (-6) = 6
Answers
Answer:
-5-2030-24Step-by-step explanation:
Solve the following equations.
1.) 1/5x - 2 = -3
2.) 15 = 10 - x/4
3.) x/3 - 12 = -2
4.) x/-2 + (-6) = 6
1/5x - 2 = -3
1/5x = -1
x = -1 : 1/5
x = -1 × 5
x = -5
15 = 10 - x/4
5 = -x/4
x = -5 : 1/4
x = -5 × 4
x = -20
x/3 - 12 = -2
x/3 = 10
x = 10 × 3
x = 30
x/-2 + (-6) = 6
x/-2 - 6 = 6
x/-2 = 12
x = -24
Can someone pls help me with this first right answer gets brainlist
Answers
116.
you add the m<1 and the m<3 and make them equal to 180. the value of x can then be substituted into the m<3 making the answer 116.
please write a function for the points (1/3,0) (-2 3/4,0) and (0,-5) and explain the steps.
thank you!
Answers
The function for the points are y = -15x - 5
How to determine the functionFrom the information given, we have that;
The points are;
(1/3,0) (-2 3/4,0) and (0,-5)
Using the point-slope form of a linear equation, we have;
y - y₁ = m(x - x₁)
Such that;
m is the slope of the liney - y₁ and (x - x₁) are the pointsUsing (1/3, 0) and (0, -5), we have that the slope is;
m = (0 - (-5))/0 -1/3)
expand the bracket
= 5 / (-1/3)
= -15
Now, take any of the given points and substitute the values
Using (1/3, 0), we get;
y - 0 = -15(x - 1/3).
y = -15x - 5.
Learn more about functions at: https://brainly.com/question/25638609
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The function for the points solved by (1/3,0) (-2 3/4,0) and (0,-5) solved by point slope form is \(a=-15b-5\)
We have given the points:
(1/3,0) (-2 3/4,0) and (0,-5)
Using the formula of linear equation
\(a-\)\(a_{1}\)\(=x[b-b_{1}]\)
Where we will consider (1/3,0) = \(a-a_{1}\) and (0,-5) = \(b-b_{1}\)
that is 1/3 = \(a\), 0 = \(a_{1}\) and
0 = \(b\), -5 = \(b_{1}\)
\(x\) refers to the slope of line (take any variable)
Now for finding the value of \(x\),
\(x=a-a_{1}/b-b_{1}\)
inserting the values,
\(x=[0-[-5]]/[0-1/3]\\x= -15\)
Substitute the value of \(x\) in the equation
\(a-0=-15[b-1/3]\)
By simplifying the equation, we get
\(a=-15b-5\)
To know more about functions and points:
https://brainly.com/question/30721594
EASY MATH QUESTION, EARN POINTS!
Answers
Answer:
g43 = 79.5
Step-by-step explanation:
geometric sequence = ar^(n-1), where a is first term and r is common ratio.
g23 = ar^(23-1) = ar^22 = 16.
g28 = ar^27 = 24.
now do g28/g23:
(ar^27) / (ar^22) = 24/16,
a^(1-1) r^(27-22) = 24/16,
a^0 r^5 = 24/16,
r^5 = 24/16 = 1.5,
r = (1.5)^1/5 ≈ 1.084.
ar^22 = 16,
a = 16/(r^22) ≈ 2.687.
so g43 = ar^42 ≈ (2.687)(1.084)^42 = 79.5
HELP! Find the answer for these 2 questions. Answer it right please.
Answers
God I love Triangles
1: b=36 units
2: C.
1st Explanation:
Given the triangle's sides are to scale, you can take the larger one and divide a side value by it's scaled version to find the rate of change.
In this instance, i took 45/10 and got 4.5, I checked with the other side and found 27/6 also was equivalent to 4.5. This meant the scale from Triangle 1 to Triangle 2 was upscaled by a multiple of 4.5 ...
I took the non-scaled side, and used the common multiple that is present on the other sides, and I found 8x4.5=36.
So, side b, the un-labeled, target side on Triangle 2, equals 36 units. (never forget the units when written, remember this for your future.)
2nd Explanation:
The word problem presents an estimated guess that we are to evaluate it's accuracy of.
I started by reading Laamars, prediction, and checked for any obvious answers. I did not find one, so I moved on to do the math to the estimated penny, by doing:
-Lamar has 1 Full Jar worth $51.45
Value: (51.45)
-Lamar has two identical (same, nearly) jars
Value: (2x51.45)
-Lamar has a 3/4 full jar. So, I converted 3 divided by 4 to .75,
Value: (.75x51.45)
-Lamar has a 1/2 full jar. So, I used one half of 51.45 with the equation: Value: (51.45/2 OR .5x51.45)
So, gathered the values and got the sum of:
Estimated Value = 51.45+(51.45x2)+(.75x51.45)+(.5x51.45) = $218.66
With this in mind, we know Lamar OVERESTIMATED, so we can eliminate answer choices A and B. When you read D, it is already known that the exact value may not be $51.45, so, by process of elimination, I concluded that Lamar most likely overestimated becuase "He has Just over 4 containers, and 4x50=200"
3+.75+.5=4.25, so the statement "just over 4" is true.
Hope this Helped!
2:c
Hope this help’s!
Which of the following units is most likely to be used to indicate the mass of the Earth?
A. milligrams
B. grams
C. pounds
D. kilograms
Answers
Answer:
Kilograms
Step-by-step explanation:
In the example shown, how many miles will June walk in 2.8 hours? Estimate first, then compare your answer to the estimate. 1.7 miles in 1 hour if she walks at the same rate how far will she walks in 1.5 hours
Answers
Answer:
What are the examples I can't answer this without them
Step-by-step explanation:
How to use a pattern to find the product of a decimal
Answers
Answer:
A decimal sequence is a set of decimals that follow each other in order, and we use a rule, or pattern, to go from one number to the next. To find the rule for a sequence, we take two consecutive numbers and subtract them.
Answer:
Step-by-step explanation:
So I don't know if this will help or is the answer that you're looking for but here:
If you're multiplying a decimal by 1, it obviously stays the same.
ex: 1 x 0.25 = 0.25
If you multiply by 10 then you move the decimal place once to the right, as it gets bigger
ex: 10 x 0.25 = 2.5
you can do this for any number:
10 x 3.44 = 34.4
you can also use any power of 10.
10^2/100
100 x 2.75 = 275/275.0
Hope this helps!!!
HELPPPPP
Figure A is a dilated image of Figure B. Find the scale factor
Answers
Answer:1.b=-4by-4 a=-9by-7 2. a=8by-6 b=2by-1
Step-by-step explanation:
What expression could be used to determine the product of -4 and 3 1/4
Answers
55 POINTS NEED ANSWER BEFORE CLASS ENDS
Answers
Answer:64 5/9
Step-by-step explanation:
Answer:
A
Step-by-step explanation:
The circumference of (distance around) a circle is π times the diameter, or C = πd. A side of the square is the diameter of each half circle. In your answer to question 1, you gave the number of complete circles included in the track. Use this answer and C = πd to find the approximate length of the circular part of the track to the nearest tenth of a foot. Use 3.14 for π and show your work.
Answers
Answer: 25 exponent 3
Step-by-step explanation:
25 exponent 3 = 0.015625
Odessa made this solid figure. I don’t really understand how I got this wrong but could anyone tell me the answer? thank you
Answers
Question:
What solid figure did Odessa make?
Answer:
Pyramid
Hope this helps sorry I worded it weird
Sara has 845 beads to put on the bracelets she is making. It takes 13 beads to make each bracelet. How many bracelets can Sara make?
Answers
Answer:
65
Step-by-step explanation:
845 beads divided by 13 beads is 65. You can make 65 bracelets.
What is 50,000 x 40,726
I can't use calculator by the way
Answers
Answer: 2036300000
Step-by-step explanation:
Answer:
2,036,300,000
Step-by-step explanation:
Consider the graph of the inequality 2y − 10 ≤ −
2
4
x. Select Yes or No for each statement.
The boundary line is dashed.
Yes No
The boundary line is y = −
1
2
x + 5.
Yes No
The half-plane below the boundary line is shaded.
Yes No
Answers
please answer quickly
Answers
Answer:
37.5
Step-by-step explanation:
cosФ = \(\frac{A}{H}\)
cos(33°35') = \(\frac{m}{45}\)
m = 45 × cos(33°35')
m = 37.5 (1d.p.)
need answer for these qyestion
Answers
thank you for asking me this question
Answer for question 4 is 30
Robert was paid a 25% commission on sales. If he was paid $240.00, what were his total sales?
Answers
Answer:
240.00 = Sales * .25
Sales = 240 / .25
Sales = 960.00
Step-by-step explanation:
Original number of students: 56
New number of students: 77
Find the percent of change. Round your answer to the nearest tenth of a percent, if necessary.
Answers
Answer:Therefore, the percent change from 56 to 77 students is 37.5%.
Step-by-step explanation:
students, we can use the following formula:
percent change = ((new number - old number) / old number) x 100%
Plugging in the values given in the problem, we get:
percent change = ((77 - 56) / 56) x 100%
percent change = (21 / 56) x 100%
percent change = 0.375 x 100%
percent change = 37.5%
Therefore, the percent change from 56 to 77 students is 37.5%.
Answer: 37.5%
Step-by-step explanation:
Working together, Jose and Jasmine can clean an attic in 5.83 hours. Had she done it alone it would have taken Jasmine 14 hours. Find how long it would take Jose to do it alone.
Answers
Answer:
it should be D. 4.24 hours
Step-by-step explanation:
because it's right because that is the answer because that how math was made and I need please 5 stars and a heart and brainliest because it would help me on here
"don't have a good day, have a great day"
-Guy
Which angles are supplementary to each other? Select all that apply.
if you dont know the answer dont answer.
Answers
Answer:
the correct answer is maybe de c
1. The rule that the Right of Occupancy is based on.
HERE ARE THE NOTES
DAY ONE NOTES
Sovereignty is essentially the power to make laws
Sovereignty refers to having supreme, independent authority over a geographic area, such as a territory.
When discussing Indigenous people’s sovereignty, there is always a connection to a specific area of land. Going back to our definitions, the US Legal definition of the land states, “Sovereignty refers to having supreme, independent authority over a geographic area, such as a territory.” While sovereignty can exist without an explicit connection to a territory, Indigenous sovereignty will ALWAYS reference a specific location.
DAY TWO NOTES
sovereignty is the backdrop through which history must be read in order to provide a real understanding.
Right of Occupancy
“The right of occupancy is not based on a treaty, statute, or other federal government action.”
until that right shall be extinguished by a voluntary cession to our government.
Self-government is right in which a voluntary cession of the right of occupancy cannot extinguish.
Answers
“The right of occupancy is not based on a treaty, statute, or other federal government action.”
Which points are 3.5 units apart?
(7.5, 1.2) and (7.5, –2.3)
(7.5, –3.5) and (7.5, 3.5)
(7.5, 1.2) and (7.5, 2.3)
(7.5, –3.5) and (7.5, 7)
Answers
PLSSS HELP THANK YOU
Answers
Answer:
np
Step-by-step explanation:
Windstorm removed 79 ton of soil from a small farm in 14 hour. What is the rate of soil removal in tons per hour?
A)7/13
B)7/36
C)2/810
D)2/89
Answers
Answer: Not any of the answers here.
Suppose that v = −2 and w = −1.
Which one of the following expressions is positive?
Answers
Answer:
D
Step-by-step explanation:
Only D is positive.
-v -2
----- = ----- = +2
-w -1
Answer:
D -v/-w
Step-by-step explanation:
v = -2 and w = -1
We find on calculator and in workings - / - does = positive
210 students were asked whether they want to go to a water park or a roller skating rink for a class party.
50 students are girls who want to go to the water park.
45 students are girls who want to go skating.
60 students are boys who want to go to the water park.
Answer the questions to analyze the data.
1. Use the given information to fill in the two-way table.
2. How many boys want to go skating?
3. To the nearest hundredth, what is the relative frequency of boys who want to go to the water park?
4. The probability that a student is in a category can be approximated by the relative frequency. To the nearest hundredth, what is the probability that a randomly selected student is a girl who
5. Are there more boy students or girl students? Do you read this information from the joint frequencies or the marginal frequencies?
6. Which destination is more popular, the skating rink or the water park?
Answers
Answer:
2: 55
3: 28.6
4: unfinished question
5: more boys. unsure of the rest
6: Water park
Answer:
1 Boys: 60 want to go to the water park, 55 want to go skating. 115 boys total
Girls: 50 want to go to the water park, 45 want to go skating. 95 girls total
2. 55 boys want to go skating
3. 0.28
4.0.21
5.More boys….marginal frequencies
6.Water park.
im not 100 percent sure but hope this helps.
Step-by-step explanation:
Lysha bought stock at $2.50 for each share. The price of the stock increased $4.75 after one month. It then decreased $1.25 and $2.45 over the next two months. What is the price of the stock now?
Answers
Answer:3.55
Step-by-step explanation:
Step-by-step explanation:
2.50+4.75=7.25
7.25-1.25=6
6-2.45=3.55