Answer:
10 m
Step-by-step explanation:
We are given that the relationship between intensity of sound and distance from the source is given by
Intensity (I)=[tex]\frac{k}{d^2}[/tex]
Where I=Intensity
d=Distance of sound from the source
If distance d=1m
Intensity, I=0.1[tex]w/m^2[/tex]
We have to find how close she can to the stage if vanessa does not want the sound intensity to be more than 0.001(w)/(m^(2)).
Using the formula
[tex]0.1=\frac{k}{1}[/tex]
[tex]k=0.1[/tex]
[tex]\frac{0.1}{d^2}\leq 0.001[/tex]
[tex]\frac{0.1}{0.001d^2}\leq 1[/tex]
[tex]\frac{0.1}{0.001}\leq d^2[/tex]
[tex]100\leq d^2[/tex]
[tex]10\leq d[/tex]
[tex]d=10 m[/tex]
Hence, she can sit 10 m away from the stage.
At what value of x does the graph of the following function F(x) have a vertical asymptote?
B. 3
__________________
I don’t understand this plsss help. You don’t rlly need to give an explanation if you don’t feel like it. I just need an answer
Just answers/Get all 3 correct and will give Brainliest!
Answer:
4sqrt3 (the third answer), No, All of the statements are true (I think)
Step-by-step explanation:
Which expressions are equal to 0 when x = -1? Check all that apply.
4(x + 1)
(4 x + 5)
4(x - 1)
(5 - 4x)
4(x - (-1))
(4 x + 5)
4 (X + (-1))
(4 x + 5)
4 (x + 1)
(5 - 4x)
Answer:
4(x + 1) and 4(x - (-1))
Step-by-step explanation:
4(-1 + 1) = 4(0) = 0
(4 (-1) + 5) = -4 +5 = -1
4(-1 - 1) = 4(-2) = -8
(5 - 4(-1)) = 5 + 4 = 9
4(-1 - (-1)) = 4(0) = 0
4 (-1 + (-1)) = 4(-2) = 8
Tell which property the statement 7(4+a)=7(a+4) illustrates
Answer:
The commutative or associative property! Hope that helps!
Step-by-step explanation:
express this number in standard form
Answer:
90000000
that's the answer but I'm not sure about the standard form sry
Answer:
90,000,000
Step-by-step explanation:
100^7= 10,000,000
10,000,000x9= 90,000,000
Write these numbers in order of size, start with the
smallest number
60% 1/2 0.3 3/4 0.4
Veronica cut a triangular piece of cookie cake with side lengths that measure 3.6 cm, 6 cm and 4.8cm.
Did Veronica cut out a right triangle?
Answer:3.6 + 4.8 > 6
Step-by-step explanation:
The answer is YES, the triangle that is cut down by Veronica is a right triangle.
What is a triangle?The basic polygonal shape of a triangle has three sides & three interior angles. This is one of the fundamental shapes in geometry and is particularly associated. It has three connected vertices. Triangles can be divided into a variety of categories according to their sides and angles.
As per the given information in the question,
The lengths of the sides of the triangle are given as,
Let Base, b = 3.6 cm
Perpendicular, p = 4.8 cm
Hypotenuse, h = 6 cm
Now, use the equation of Pythagoras' theorem,
h² = p² + b²
6² = 4.8² + 3.6²
36 = 23.04 + 12.96
36 = 36
It satisfies Pythagoras' theorem, which means that it is a right triangle.
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if you where asked to solve a system of linear equations using the substitution method, what form would one or both of the equations start as that would make the problem the simplest?
A. point-slope form
B. standard form
C. slope-intercept form
D. point-intercept form
Answer:
It's A
Step-by-step explanation:
In general, the equation in point-slope form will give an expression that can substitute for "y", as that form is ...
y = [something]
_____
In specific instances, the other forms of the linear equations may work, but that is not guaranteed.
Find the slope and y-intercept of the line represented by the table.
.
Please help me
Step-by-step explanation:
I cant see the question but use the formula
y=mx+b
m=slope
b=y-intercept
you can also use the equation
y2-y1/x2-x1 to find slope.
since its a table, you can plug the x (input) and y (output) coordinates of the table to find the slope.
HELP ME ASAP PLEASE
Find the length of the missing side. Simplify all radicals.
Answer:
160 i think?
Step-by-step explanation:
45 + 25 =70 so 70-180= 160
2x – 3y = -5
у = х – 1
y=?
x=?
HELP
Answer:
Y = 1
X= -1
Step-by-step explanation:
Y is 3 so x is 2 and if y = x then x - 1 would be one and then that would make y = 1
X is 2 - y which is 3 will equal -1
Answer:
Step-by-step explanation:
2x – 3y = -5.........(i)
у = х – 1................(ii)
Multiply equation (ii) by 3,
3у = 3х – 3.......(iii)
Add (i) and (iii)
2x – 3y = -5
+
-3x + 3y = – 3
=
-x = -8
x = 8
put the value of x in eq (ii)
у = х – 1
у = 8 – 1
y = 7
Do mark me as brainly. Thanks
Which pair of measurements is not equivalent?
9.6 cm, 96 mm
1256 m, 12.56 km
340 mm, 0.34 m
720 cm, 7.2 m
Answer:
1256m→12.56km
Step-by-step explanation:
1.256km
Find m]KI.
А
80°
B
100°
С
160°
D
2800
Answer:
lungitud es 5718374+383739=2588262836372937382682
30 = x + 22
What does x equal to?
Answer:
x = 8
Step-by-step explanation:
30 = x + 22
subtract 22 from both sides
8 = x
394.6 divided by 2 plssss help
Answer: 197.3 ok bye
Step-by-step explanation:
Answer:
197.3
Step-by-step explanation:
Sunita creates a scale model of an aeroplane. The scale of the model is 4 cm to 15 m. Sunita's model has a wingspan of 17 cm. What is the wingspan of the real aeroplane?
Answer:
36.43m
Step-by-step explanation:
Let the wingspan of the real aeroplane = x
The scale of the model is 4 cm to 15 m.
= 4: 15 = 4/15.
Sunita's model has a wingspan of 17cm.
Hence:
4cm/15m = 17cm/xm
Cross Multiply
4x = 15 × 17
4x = 255
x = 255/4
x = 36.428571429 m
Approximately = 36.43 m
Therefore, the wingspan of the real aeroplane is 36.43m
Randy wanted to survey to determine the most preferred pet of the residents in his city. Which method of sampling BEST represents the most unbiased opinion?
A) Survey 50 residents from 5 different areas
B) Survey 100 residents who have pets
C) Survey 100 residents who do not have pets
D) Survey 50 residents in his are who but per food regularly from the supermarket
Answer:
B
Step-by-step explanation:
The Science Club went on a two-day field trip. The first day the members paid $60 for transportation plus $11 per ticket to the planetarium. The second day they paid $85 for transportation plus $8 per ticket to the geology museum. Write an expression to represent the total cost in dollars for two days for the n members of the club.
if you can please solve it
Answer:
145 + 19t
Step-by-step explanation:
The HCF of 36 72 63
The LCM of 8 9 12
LCM of 8,9,12 is 72
HCF of 36 72 63 is 3
Find the missing value need help
Question 4
There are 230 calories in 4 ounces of strawberry ice-cream. How many calories are in 6 ounces of strawberry ice-cream?
Answer:
345
Step-by-step explanation:
How many are in one once? divide 230 by 4. There are 57.5 in one once. multiply that by 6. There are 345 in 6 ounces
Triangles ABC and DEF are similar find d
Answer:
A=D where is picture . it is required
The basking shark can grow to a length of 30 feet. This is 176.47% of the maximum length of the beluga whale. Find the maximum length of the beluga whale. If necessary, round your answer to the nearest tenth.
a) 52.9ft
b) 17ft
c) 5.9ft
d)1.7ft
Answer:
b
Step-by-step explanation:
The maximum length of the beluga whale is 17 feet.
What is the percentage?A percentage is a value per hundredth. Percentages can be converted into decimals and fractions by dividing the percentage value by a hundred.
Given, The basking shark can grow to a length of 30 feet.
This is 176.47% of the maximum length of the beluga whale.
Assuming the maximum length of a beluga whale is x feet.
So, 176.47% of x is 30 feet.
∴ (176.47/100)×x = 30.
1.7647x = 30.
x = (30/1.7647).
x = 17 feet.
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this is a pattern 729, 243, 81, 27, __ , __
4 minutes 53 seconds to seconds
Answer:
It's 293 seconds
Step-by-step explanation:
Answer:
293 seconds
Step-by-step explanation:
4 minutes 53 seconds
4 minutes = 4 X 60 seconds + 53 seconds
240 seconds + 53 seconds
= 293 seconds
Mark me the Brainliest
WILLL GIVE BRAINIEST! ONLY IF ANSWER IS RIGHT
Answer: The one in the top left is right
Step-by-step explanation:
Hope this helps.
help pls :( DO IT FOR A NUGGET
Answer:
natural numbers. they are also called counting numbers. hope this helps :)
Use simple interest to find the ending balance
$14,000 at 6% for 9 years
Answer:
$21,560.00
Step-by-step explanation:
SI = 14,000 x 0.06 x 9
SI = $7,560
$14,000 + $7,560 = $21,560.00
Multiply and simplify.
2x4yx·6xy2z3
12(xyz)12
12x6y3z3
12x4y2z3
8x6y3z3
Answer: 6 3 3
to multiply it it will be 12x y z
to simplply it will be the same answer
Step-by-step explanation:
the number at the top is the exponents i dont know how to put them in the correct spot
