If there are a number of different sounds being produced simultaneously, the resulting intensity is the sum of the individual intensities. How many decibels louder is the sound of quintuplets crying than the sound of one baby crying?
The sound of quintuplets crying is 7 dB louder than the sound of one baby crying because a factor of five in intensity corresponds to a 7 dB increase in sound intensity level.
Explanation:The question asks how many decibels louder the sound of quintuplets crying would be compared to the sound of one baby crying. To calculate this, we need to understand that intercity levels in decibels (dB) are measured logarithmically. This means that for every ten-fold increase in intensity, the sound level goes up by 10 dB. We also know that a factor of five in intensity corresponds to an increase of 7 dB.
If one baby crying produces a certain sound intensity, then five babies (quintuplets) crying simultaneously would increase the intensity by a factor of five. Hence, the sound of quintuplets crying would be 7 dB louder than the sound of one baby crying, based on the given references.
what is 3/4 of 1/3 of a mile ???
Please help me now ! Thank you
Jasmine opened a bank account. She deposited $84.50 into her account every month for 20 months. She used $50.50 every month to pay for dance lessons. After 20 months, she used 1 over 4 of the total money left in her account to go to a music camp. What is the total amount of money Jasmine spent to go to the music camp?
$115.00
$135.00
$155.00
$170.00
Answer:
Option D 170.00.
Step-by-step explanation:
I took the test.
What is the property of 2x32x5=2x5x32=
Reese spent $4.95 on cookie supplies. He sold 24 cookies at $2 each. His profit is how much more he got from selling the cookies than he spent. What was his profit?
To solve this problem, we should first find out how much Reese made from selling cookies. To do this, we have to multiply the cost of one cookie ($2) by the number of cookies he sold (24). This is modeled below:
24 * $2 = $48
To find Reese's total profit, we must subtract how much he spent on the supplies ($4.95) from his earnings ($48). This is modeled below:
$48 - $4.95 = $43.05
Therefore, Reese's profit is $43.05.
Hope this helps!
Suppose △ITH≅△APG.
Which congruency statement is true?
It is given that the triangles ITH and APG are congruent.
When the two triangles are congruent, then the corresponding angles and sides are congruent to each other.
By being congruent, the corresponding angles which are congruent are:
[tex]IT \cong AP, TH \cong PG, IH \cong AG[/tex]
Therefore, [tex]IH \cong AG[/tex]
SO, Option 2 is the correct answer.
How many solutions can be found for the linear equation? 6( 3x/2 + 4) - 10 = 1/2 (4x + 16)
A) no solutions
B) one solution
C) two solutions
D) infinitely many solutions
Answer:
its b one solution
Step-by-step explanation:
Bill drove from Washington DC to Charlotte in 6.5 hours. What was his average speed in miles per hour?
A class has 24 students. The teacher asks how many students in the class have pets and finds 5/8of the students have pets. Write a multiplication problem. How many students have pets?
4sin theta + 3 square root of 3 = square root of 3
Mary buys a dress and a pair of shoes. Before adding the tax she pays $ 48 for the dress which normally sells for $ 62, and she pays $ 34 for the shoes which normally sell for $46.
Find the nth term in the following sequence:
10, 19, 34, 55
Answer:
The nth term of sequence is [tex]3n^{2}+7[/tex]
Step-by-step explanation:
We need to find out the general recurrence relation of sequence:
[tex]10, 19, 34, 55[/tex]
if we see pattern of sequence that every square of each number 'n' is multiple of 3 and addition of 7
check this pattern by [tex]3n^{2}+7[/tex]
For n=1
[tex]3n^{2}+7[/tex]
[tex]3(1)^{2}+7[/tex]
[tex]3+7[/tex]
[tex]10[/tex]
For n=2
[tex]3n^{2}+7[/tex]
[tex]3(2)^{2}+7[/tex]
[tex]3\times 4+7[/tex]
[tex]12+7[/tex]
[tex]19[/tex]
For n=3
[tex]3n^{2}+7[/tex]
[tex]3(3)^{2}+7[/tex]
[tex]3\times 9+7[/tex]
[tex]27+7[/tex]
[tex]34[/tex]
And so on..
Therefore, the nth term of sequence is [tex]3n^{2}+7[/tex]
yesterday jamal scored -20 points on a puzzle today he scored more points use absolute value to describe today's score as a loss
The absolute value of Jamal's score is 20, indicating a loss of 20 points.
Explanation:In math, the absolute value of a number is the positive value of that number, regardless of its sign. Since Jamal's score on the puzzle was -20 points, we can use absolute value to describe today's score as a loss by taking the absolute value of the score. The absolute value of -20 is 20, which means that today's score was a loss of 20 points.
How many terms are there in the expression 2x - 5y + 3 + x?
3
4
5
6
The human body is 70% water on average. About how much water will be in a person that weighs 140 pounds?
1.Write Paulo's time in standard notation
2.Miguel ran a marathon in 4 h and 16 min.Who ran the race in the shorter amount of time.Show your work.
HELP DONT ANSWERED IT JUST TO GET POINTS I NEED HELP THIS NEEDS TO BE TURNED IN @6
|x + 3| < 5
–8 < x < 2
–2 < x < 8
3 < x < 5
–3 < x < 5
Answer:
-8 < x < 2Step-by-step explanation:
[tex]|x+3|<5\iff x+3<5\ \wedge\ x+3>-5\qquad\text{subtract 3 from both sides}\\\\x<2\ \wedge\ x>-8\Rightarrow -8<x<2[/tex]
simplify.
-5 ( x - 3) + 2 ( a - 9)
-5x + 2a + 33
-5x + 2a + 4
-5x + 2a - 33
-5x + 2a - 4
Answer:
Step-by-step explanation:
-5(x+3) + 2(a-3
-5*x =-5x
-5*3= -15
2*a=2a
2*9=18
-15+18=3
so the answer is -5x+2a-3
According to the general equation for conditional probability, if P(A^B)=3/4 and P(B)=4/5, what is P(A B)?
0.96
Explanation:A rule of conditional probability states that
P(A∣B)=P(A∩B)P(B)
So in this case it would be:
P(A∣B)=4556=4⋅65⋅5=2425=0.96
Only 5,6,7,8 please help
Can someone please help me with this math problem?? Number 13
I need help to figure out n
The ratio of Aspens to Ponderosa Pines in a part of a forest is 12 to 16. If there are 12 Ponderosa Pines, how many Aspens are there?
How can i do this? I don't quite understand "give an example of when it might be appropriate to estimate an answer rather than provide the exact answer" Thanks for your help
whats 3/4+1/4÷4/5+1/2
what is the equation of the line shown in this graph.
simplify the expression (5-5i)-(-6-3i)
How do I solve this? Either teach me how, or help me with a few other simmilar ones.
Answer: Simplifying the expression of the substraction of the two complex numbers we get 11-2i
Solution:
(5-5i)-(-6-3i)
Eliminating the parentheses: 5-5i+6+3i
Grouping similar terms: (5+6)+(-5+3)i
Adding the similar terms: 11+(-2)i = 11-2i
Answer:
The simplify form of given expression is 11-2i.
Step-by-step explanation:
The given expression is
[tex](5-5i)-(-6-3i)[/tex]
Using distributive property, we get
[tex]5-5i-(-6)-(-3i)[/tex]
[tex]5-5i+6+3i[/tex]
Combined real and imaginary parts.
[tex](5+6)+(-5i+3i)[/tex]
[tex]11+(-2i)[/tex]
[tex]11-2i[/tex]
Therefore the simplify form of given expression is 11-2i.
identify the terms and like terms in the expression - x - 9x*2 + 12x*2 + 7
The terms in the expression - x - 9x*2 + 12x*2 + 7 are -x, -9x*2, +12x*2, and +7. The like terms in the expression are -9x*2 and +12x*2. The terms -x and +7 are not like terms.
Explanation:In the expression - x - 9x*2 + 12x*2 + 7, the terms are:
-x-9x*2+12x*2+7The like terms are the terms that have the same variable and exponent. In this expression, the like terms are -9x*2 and +12x*2, since they both have the variable x raised to the power 2. So, the like terms are -9x*2 and +12x*2.
The terms -x and +7 do not have the same variable or exponent, so they are not like terms.
Learn more about terms and like terms here:https://brainly.com/question/29169167
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If a and b are any two real numbers, explain how you calculate the difference a - b. Be sure to include the following in your explanation.
(A) a description of the relationship between addition and subtraction
(B) how you can use a number line to help with the calculation
(C) how you can determine the sign of the result