The decibel level of sound in a quiet office is 10−6watts/m2.

(a) What is the corresponding sound intensity in decibels?

(b) How much more intense is this sound than the least audible sound a human can hear?​

Answer:

birr 40,000

Step-by-step explanation:

Given that :

Shares owns by a man in a business =  [tex]$\frac{3}{4}$[/tex]

Fraction of the shares sold by the man = [tex]$\frac{1}{3}$[/tex]

Amount for which the shares were sold = 10,000 birr

Let the value of the business of the ma be = x

Therefore, according to the question,

[tex]$\frac{1}{3} \text{ of } \left(\frac{3}{4}x\right) = 10000$[/tex]

[tex]$\Rightarrow \frac{1}{4}x = 10000$[/tex]

[tex]$\Rightarrow x = 4\times10000$[/tex]

       = 40,000

Therefore, the value of the share is birr 40,000

Answer:

9.6

Step-by-step explanation:

Answer:

273/1000

Step-by-step explanation:

Answer:

Because there are 4 ways to pick red then 4 (C)

Answer:

it looks like it would be C

Step-by-step explanation:

Answer:

5^4

Step-by-step explanation:

i hope this helps :)

Answer:

5^4

Step-by-step explanation:

exponents are the number being multiplied by itself and you can see 4 fives so it would be 5^4

Step-by-step explanation:

The angles which are vertical to each other are

<9 and <11

< 1 and < 3

< 6 and <8

< 2 and < 4

Answer:

All of them forms a vertically opposite angle

Answer:

No

Step-by-step explanation:

In order for it to be a function, every input (x values on the left) needs to be paired with only 1 output (y values on the right). Notice that 1 is paired with both 2 and 4.  This means it is not a function, but it is paired with two different values.

Answer:

30

Step-by-step explanation:

If you plug in 5 for x and 3 for y then the equation would be 3(5)+5(3) or 15+15.

Answer:

she can have a total of 4 books

bc 1lb + 2lb =3 lb

4 lbs per book would be 19 - 3 lb = 16 lb

16 ÷ 4 =4

so the answer is 4 books

Answer:

x = 25

Step-by-step explanation:

75 = (4x - 25)

Since there are no numbers outside of the parentheses, we can remove them.

75 = 4x - 25

Now we can see that we can add 25 to both sides.

100 = 4x

Divide both sides by 4 to isolate x.

25 = x

Check by plugging in the value into the original equation.

75 = 4(25) - 25

75 = 100 - 25

75 = 75

Your answer is correct.

Hope this helps!

Answer:

B. Because the greatest point is 4

Answer:

D. y - 3 = - 12 ( x - 5)

Step-by-step explanation:

Given

Slope (m) = - 12

Point = ( 5 , 3 ) = ( x1 , y1)

Now

Writing in point-slope equation we get

y - y1 = m( x - x1)

y - 3 = - 12 ( x - 5 )

Hope it will help :)❤

Answer:

8

Step-by-step explanation:

64 is a perfect square

the square root of 64 is equivalent to 8

have a great day :)

Answer: square root of 64 is 8

hope this helps

Answer:

y=a right angle triangle

y=50

Step-by-step explanation:

140-90

=50

if u add 90 and 50 it totals up to 140

they are vertically opposite triangles hope that helps

Answer:

1000

Step-by-step explanation

1 liter always equals 1000 milliliters

Answer:

it is 500

Step-by-step explanation:

Answer:

C and D

Step-by-step explanation:

Answer: w = 136

Step-by-step explanation:

Use the triangle angle sum theorem which states the interior angles of a triangle sum to 180.

14+30+w= 180. Combine like terms.

44+w= 180. Subtract 44 from both sides.

w= 136

Answer:

136°

Step-by-step explanation:

Triangles always equal 180°, so add up the given numbers (in this case, 14 and 30 to get 44) then subtract from 180 to get your answer. Hope this helps!!!

Answer:

( -2,4) is the slope of this line

Answer:

$1.19 per quart

Step-by-step explanation:

one gallon = 4 quarts

$4.76/4 = $1.19 per quart

Answer:15

Step-by-step explanation: using the formula c=a^2+b^2 square rooted, you can basically use the reverse Pythagorean theorem

Answer:

1

Step-by-step explanation:

theyre all even

Answer:

10.58 N

Step-by-step explanation:

Let us find component of these forces in x and y direction.

The solution along with diagram can be found in attachment.

We have found resultant in X- direction = 6√3 N

resultant in Y- direction = 2 N

therefore net force resultant force = [tex]\sqrt{(6\sqrt3)^2+2^2}[/tex]

= 10.58 N

Answer:

12x + 3 + 7x - 13 = 180

Step-by-step explanation:

Q and R are Same Side Interior Angles

If you add any two same side interior angles for a trapezoid, they will equal 180 degrees.

Therefore, 12x + 3 + 7x - 13 = 180 degrees

Answer:

12x + 3 + 7x - 13 = 180

Step-by-step explanation:

The top and bottom sides of the trapezoid are parallel, but the sides are not. This means that the two angles that we are trying to find cannot be equal. In this case, this can only mean that both sides can be combined to complete a 180 degree angle. This can also be determined since they are supplementary angles, or angles that are adjacent to the opposite side of another base.

Answer:

y= -1/2x -1

Step-by-step explanation:

y= mx +b where the y-intercept is B and the slope is m.

Hope i helped!

Answer:

The correct option is c.

Step-by-step explanation:

Given that,

u = 7i+4j and v = 2i-3j

We need to find the product of u and v. The dot product of two vectors is given by :

[tex]u{\cdot}v=(7i+4j){\cdot} (2i-3j)\\\\=(7i)(2i)+(4j)(-3j)\\\\=14-12\\\\=2[/tex]

So, the dot product of u and v is equal to 2.

Answer:

6.4

Step-by-step explanation:

Given the data:

15, 25, 10, 2, 8

Sample size, n = 5

The mean, m of the data above is :

(15 + 25 + 10 + 2 + 8) / 5

= 12

The mean absolute deviation:

|x - m| / n

|15 - 12| + |25 - 12| + |10 - 12| + |2 - 12| + |8 - 12|

(3 + 13 + 2 + 10 + 4) / 5

= 32 / 5

= 6.4

Answer:

6/7x+5/2y

Step-by-step explanation:

I actually don't know

Answer:

s = 1

Step-by-step explanation:

The sum of the interior angles of a polygon is

sum = 180° (n - 2) ← n is the number of sides

Here n = 5 , then

sum = 180° × 3 = 540°

sum the interior angles and equate to 540

39s + 129 + 79 + 145 + 148 = 540 , that is

39s + 501 = 540 ( subtract 501 from both sides )

39s = 39 ( divide both sides by 39 )

s = 1

Answer:

28413.4 in (radius} = diameter divided by 2 = 47.7 divided by 2 =23.85

radius=  2

diameter

​ =  2

47.7

=23.85