Label the imagine I need to finish this
HURRY PLEASE ANSWER!
Answer:
[tex]\mathbf{\beta=140\ dB}[/tex]
Step-by-step explanation:
The Logarithm Function
The sound level is usually calculated as a logarithm by the formula:
[tex]\displaystyle \beta=10\log\frac{I}{I_o}[/tex]
Where
I = Sound intensity in W/square meter
Io = Smallest sound intensity that can be heard.
[tex]I_o=1\cdot 10^{-12}\ W/m^2[/tex]
The blue whale can emit a sound of I=106.8 W/square meter, thus the sound level is:
[tex]\displaystyle \beta=10\log\frac{106.8}{1\cdot 10^{-12}}[/tex]
[tex]\displaystyle \beta=10*14[/tex]
[tex]\mathbf{\beta=140\ dB}[/tex]
Two given angles cannot be both..
A. congruent and complementary
B. vertical and congruent
C. adjacent and congruent
D. vertical and adjacent
Please help me :(
If vertical angles are directly opposite each other and do not share a common side, therefore, two given angles cannot be both: D. vertical and adjacent.
Recall:
If two angles are said to be vertical when both angles are directly opposite each other and are also congruent or equal in measure.
Vertical angles share a common vertex or point but do not share a common side.
Adjacent angles share a vertex and a common side.
Thus, if vertical angles are directly opposite each other and do not share a common side, therefore, two given angles cannot be both: D. vertical and adjacent.
Learn more here:
https://brainly.com/question/16303608
The temperature was 75° Fahrenheit. The temperature dropped at a rate of 10° per hour.
What was the temperature in degrees 8 hours later?
Answer:
-5 degrees
Step-by-step explanation:
you started at 75 degrees. it dropped at a rate of 10 degrees per hour. It's been eight hours. 8 times 10 equals 80. It dropped a total of 80 degrees. the starting 75 degrees minus the current 80 degrees equals -5 degrees.
4y + 10 = 5x 2.5x + 2y = -10
Answer:
are they seperate equations?
Step-by-step explanation:
A line with a slope of 4 passes through the point (2, 1). What is the equation of this line?
Answer:
point slope form: y - 1 = 4 (x -2)
slope intercept form: y = 4x -7
Step-by-step explanation:
If you want it in point slope form it would be: y - 1 = 4 (x -2)
but if you want it in slope intercept form, you solve this equation
y -1 = 4 (x-2)
y-1 = 4x -8
+1 +1
y = 4x -7 in slope intercept form
what is the ratio of the area of the larger pizza to the area of the smaller pizza ? choices are 2,3,4, and 9 .
Serenity has some pennies and some nickels. She has no less than 18 coins worth at most $0.66 combined. If Serenity has 12 pennies, determine the maximum number of nickels that she could have. If there are no possible solutions, submit an empty answer.
Answer: 10 nickels
Step-by-step explanation:
A pennie is a cent or $0.01. Serenity has 12 pennies so the amount she has from pennies is:
= 12 * 0.01
= $0.12
The amount she has in nickels at most is therefore:
= 0.66 - 0.12
= $0.54
A nickel is $0.05 so the number of nickels are:
= 0.54/0.05
= 10.8 nickels
= 10 nickels
If she has 10 nickels then the total she would have is:
= (12 * 0.01) + (10 * 0.05)
= $0.62
This fits the parameters
The radius of a right circular cylinder is increasing at the rate of 7 in./s, while the height is decreasing at the rate of 3 in./s. At what rate is the volume of the cylinder changing when the radius is 17 in. And the height is 5 in.?
Answer:
1014.73 in³/s
Step-by-step explanation:
We know the volume of a cylinder, V = πr²h where r = radius of cylinder and h = height of cylinder.
Now, to find the rate of change of volume, we differentiate it with respect to time. So
dV/dt = d(πr²h)/dt
= πhdr²/dr × dr/dt + πr²dh/dh × dh/dt
= 2πrh × dr/dt + πr² × dh/dt
when r = 17 in, dr/dt = rate of change of radius = + 7 in/s, h = 5 in and dh/dt = rate of change of height = - 3in/s (negative since it is decreasing).
So, dV/dt = 2πrh × dr/dt + πr² × dh/dt
= 2π × 17 in × 5 in × (+ 7 in/s) + π(17 in)² × (- 3 in/s)
= 1190π - 867π
= 323π in³/s
= 1014.73 in³/s
The measure of an interior angle of a regular polygon is 174. Find the number of sides in the polygon.
Answer:
60 sides
Step-by-step explanation:
The formula for the sum of the interior angles of a polygon with n sides is 180(n -2). The problem also tells you that each angle is 174, so the sum of the interior angles would also be 174n.
Then, you get the equation
180(n - 2) = 174n
180n - 360 = 174n
6n = 360
n = 60 sides.
Solve the problem. Round the solution to the nearest hundredth where applicable. What is the tangent of ZH?
check photo for image and options
2 brownies where shared by 3 friends, how much do they get
Answer: 1.5
Step-by-step explanation: you just have to divide 3÷2 and you will get 1.5
solve the following system of equations
Write an equivalent expression to 8k-(5+2k) without parenthesis
Answer:
6k-5
Step-by-step explanation:
8k-(5+2k) write the equation out
8k-5-2k distribute the (-) to everything inside the parenthesis
6k-5 combine like terms
Giving brainly and points
Answer: B) −8x − 9
Step-by-step explanation:
5 − 2 (4x + 7)
Apply the distributive property.
5 − 2 (4x) − 2 ⋅ 7
Multiply 4 by −2.
5 − 8x − 2 ⋅ 7
Multiply −2 by 7.
5 − 8x − 14
Subtract 14 from 5.
−8x − 9
hope this helps :)
Answer:
b
Step-by-step explanation:
5-2(4x+7)
distribute
-8x-14
5-8x-14
5-14=-9
-8x-9
I don’t understand help PLZZZ
which term is related to electromagnetism applies only to the magnetic force
a. non-contact
b. poles
c. protons
d. attraction
HELP quick i am on a timed test!
A. non-contact
B. poles
C. protons
D. attraction
ANSWER:B.Poles is related to electromagnetism applies only to the magnetic forceHopeItHelps you
A scale factor of 4 is:
an enlargement
a reduction
Does the system shown always, sometimes, or never have a solution when a >b?
ax+y=8
bx + y = 5
always
sometimes
O
never
Answer:
sometimes
Step-by-step explanation:when a >b?
ax+y=8
bx + y = 5
always
sometimes
O
never
I need help on question a and b. please help me asap?!?!?
A bathtub is filling with water at a rate of 60 liters per minute.
How many liters of water are in the bathtub after t minutes?
Write your answer as an expression.
Answer:
YO BIG MAMMA
Step-by-step explanation:
You just yell to your mom and say YO BIG MAMMA and TADA she loves you
Graph
y−2=23(x+4)
I don’t no how to graph so plz help me
Answer: This file i added shows the graph. If it doesnt help, then you can use M.a.th w.a.y to find the graph
Step-by-step explanation:
Exp
Breana has $2,500 in her bank
account. Every week, she withdraws
$45.50 for expenses. She makes
one deposit of $50.00. How many
weeks can she withdraw this money
if she wants to maintain a balance of
at least $200?
Answer: $40 can be withdrawn from the account for 7 weeks if she wants to maintain a balance of at least $200.
Step-by-step explanation:
Can someone help me please I need help
9514 1404 393
Answer:
1. yes
2. no
Step-by-step explanation:
We can label the equations [1] and [2] to make the transformations to the equivalent system easier to describe.
1. The equivalent system is [1] +[2] and 2×[1]. Both of these are described as allowed transformations.
[1] +[2] is (-x +2y) +(-3x +9y) = (10) +(-15) ⇒ -4x +11y = -5
2×[1] is 2(-x +2y) = 2(10) ⇒ -2x +4y = 20
These resulting equations match the ones proposed for the equivalent system.
yes, the systems are equivalent
__
2. The first equation of the proposed "equivalent" system is [1] +[2]. The second equation has no relation to the equations of the given system.
[1] +[2] = (-2x +3y) +(-11x -13y) = (14) +(-6) ⇒ -13x -10y = 8
no, the systems are not equivalent
(This is also shown in the attached graph. The original system is in red; the "equivalent" system is in green. Equivalent systems have the same solution. These do not.)
In the graph of an inequality, the region to the right of a dashed vertical line
through the point
(-4,0) is shaded. What inequality does the graph represent?
Answer:
x is greater than -4
Step-by-step explanation:
Answer:
x > -4
Step-by-step explanation:
A pupil has 343 small cubes,each of a side 1 cm .He placed these cubes together to make a larger cube.
what is the length of a side of the larger cube?
Answer:
85.75 I think. not 100%
Step-by-step explanation:
What is the factored form of m^6- 64n^3?
Step-by-step explanation:
Let x = m² and y = 4n.
Then m⁶ - 64n³ = x³ - y³
= (x - y)(x² + xy + y²)
= (m² - 4n)(m⁴ + 4m²n + 16n²).
The graph of h(x)=|x-10|+6 is shown on whitch interval is the graph increasing
Suppose you anticipate needing to call the UK for a total of 250 minutes and France for 100 minutes. Will a $75 card cover the cost of this much calling? Explain your answer.
Complete question :
You have relatives living in the United Kingdom and in France. Suppose that you have purchased a prepaid phone card with a value of $75. Calls to the United Kingdom cost 23¢ per minute, while calls to France cost 21¢ per minute."Suppose you anticipate needing to call the UK for a total of 250 minutes and France for 100 minutes. Will a $75 card cover the cost of this much calling?
Answer:
cell phone card won't be enough.
Step-by-step explanation:
Cell phone card value = $75
United kingdom = 23cent per minute
France = 21 cent per minute
United Kingdom minutes = 250
France minutes = 100
Total cost :
23 cent = $0.23
21 cent = $0.21
Total :
United Kingdom = 0.23 * 250 = $57.5
France = 0.21 * 100 = $21
$21 + $57.5 = $78.5
$78.5 > $75
Then, it can be concluded that the cell phone card won't be enough.
While you were at school you hear two students talking about an online business that pays a
piecework rate of $0.02 for stuffing envelopes. One of them says that he was able to stuff 4,382
envelopes during the week. How much was the student's gross pay rounded to the nearest
cent? Do not include a dollar sign in your answer. I got 8.764, is this answer correct ?
