What is the sound level for a noise that has an intensity of 7.6 × 10-4 watts/m2? A. 8.88 dB B. 31.19 dB C. 88.81 dB D. 120 dB

Step-by-step explanation:

what do u need help solve

Answer:

There are 50 on the football team

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Given:

In 16 coins some coins are dimes and some are nickels.

The combined value of her nickels and dimes is 1.35.

To find:

The number of nickels and dimes.

Solution:

We have,

Number of total coins = 16

Combined value = $1.35

Let x be the number of nickels and y be the number of dimes.

Total coins: [tex]x+y=16[/tex]              ...(i)

We know that,

1 nickel = $0.05

1 dime = $0.10

Combined value: [tex]0.05x+0.10y=1.35[/tex]          ...(ii)

From (i), we get

[tex]y=16-x[/tex]           ...(iii)

Putting this in (ii), we get

[tex]0.05x+0.10(16-x)=1.35[/tex]

[tex]0.05x+1.60-0.10x=1.35[/tex]

[tex]-0.05x=1.35-1.60[/tex]

[tex]-0.05x=-0.25[/tex]

Divide both sides by -0.05.

[tex]x=\dfrac{-0.25}{-0.05}[/tex]

[tex]x=5[/tex]

Putting x=5 in (ii), we get

[tex]y=16-5[/tex]

[tex]y=11[/tex]

Therefore, the number of nickels is 5 and the number of dimes is 11.

Answer:

The length of hypotenuse is 45 kilometers

Step-by-step explanation:

Assuming that given lengths are of perpendicular and hypotenuse, and the triangle is a right angled triangle

Perpendicular = P = 27 km

Base = B = 36 km

Hypotenuse = H = ?

We can use Pythagoras theorem for finding the length of hypotenuse

The Pythagoras theorem is given by:

[tex]H^2 = B^2+P^2[/tex]

Putting the values, we get

[tex]H^2 = (36)^2 + (27)^2\\H^2 = 1296 + 729\\H^2 =2025[/tex]

Taking square root on both sides

[tex]\sqrt{H^2} =\sqrt{2025}\\H =45[/tex]

Hence,

The length of hypotenuse is 45 kilometers

Answer:

I would love to help but the image is not there on my screen. :(

Step-by-step explanation:

Answer:

Reverse

Step-by-step explanation:

Add = Subtract

Multiply = Divide

Square = Square root

Cube = Cube root

Hope this helped!

Answer: 7 is the opposite of negative 7

Step-by-step explanation:

Hope this helps :)

Answer:

see below

Step-by-step explanation:

y≤5x−4

Substitute the points in and see if they are true

(0,4)

4≤5*0−4

4≤−4  Not true not a solution

(1,3)

3≤5*1−4

3≤1  Not true not a solution

(4,3)

3≤5*4−4

4≤16  true  solution

(3,-1)

-1≤5*3−4

-1 ≤11   true  solution

(1,1)

1≤5*1−4

1≤1   true  solution

(6,0)

0≤5*6−4

0≤26   true  solution

Step-by-step explanation:

All except first 2

Let's verify

#3

[tex]\\ \rm\Rrightarrow 3<=5(4)-4<=20-4<=16\checkmark[/tex]

#4

[tex]\\ \rm\Rrightarrow -1<=15-1<=14\checkmark[/tex]

#5

[tex]\\ \rm\Rrightarrow 1<=5-4=1\checkmark[/tex]

#6

[tex]\\ \rm\Rrightarrow 0<=30-4<=26\checkmark[/tex]

Answer:

4 players play soccer. Hope that helps :)

Step-by-step explanation:

I am not sure I just know the answer.

Answer:

Answer: 28 in

Step-by-step explanation:

Please find the attachment

Step-by-step explanation:

3x-3(20)=12

3x=72

x=24.

24 stickers on each sheet

Answer:

scalene, acute

Step-by-step explanation:

plzz help mee e

A motor home starts across a lake. The lake is 7 miles long and it takes 0.5 hours to get across. What is the speed? Write a formulae and show a label.

Answer:

I'm very sure this is using SAS.

Answer:

SAS is the correct answer

Answer:

I can

Step-by-step explanation:

If you want to solve for Y its 10

If you want to solve for something else tell me:)

Answer:

Step-by-step explanation:

so we have

8 men.........................................9 women

40 men.......................................45 women

there are 40 men in the recital

45/9=5

5*8=40 men

Answer:

2 1/5

2 X 5 + 1 = 11/5

11/5 X 2/1 = 22/5

1 3/4

1 X 4 + 3 = 7/4

7/4 X 2/1 = 14/4

22/5 + 14/4

5 X 4 = 20

4 X 22 = 88

5 X 14 = 70

88/20 + 70/20 = 158/20

20 goes into 158 7 times with 18 left over

7 18/20 simplified = 7 9/10

Answer:

y=(-3/4)x+3

Step-by-step explanation:

Slope intercept form is y=mx+b

m is the slope  (-3/4)

b is the y-intercept  (3)

Plug the slope and intercept you were given in and you get the equation of the line in slope intercept form

y=(-3/4)x+3

Answer:

C. 4

Step-by-step explanation:

Answer:

14 feet

Step-by-step explanation:

We solve the above question by using the Greatest Common Factor method

We find the factors of 56 and 98

The factors of 56 are: 1, 2, 4, 7, 8, 14, 28, 56

The factors of 98 are: 1, 2, 7, 14, 49, 98

Then the greatest common factor is 14.

Therefore, the greatest possible length you can cut the rope so all pieces will be the same is 14 feet

Answer:

The answer is C. Based upon the problem, both coordinates are negative.

❤ I hope this helps you, kind stranger! ❤

Answer:

[C] 52

Step-by-step explanation:

If line SQ bisects angle RST, that means it splits it in half. This would make angles RSQ and QST equivalent.

So that means that angle RSQ would equal 26

Since the question is asking for angle RST (the whole angle), you would add both of the angles

26 +26 = 52

Answer:

i think it is 43

Step-by-step explanation:

Answer:

A sample size greater than 30

Step-by-step explanation: The central limit theorem proffers the conditions necessary to obtain a normal or bell shaped distribution. It defines normal distribution in terms of mean, standard deviation and sample size. The sample size is a very important factor in determining the shape of a distribution.

Thus with a population having mean and standard deviation stated, in other to make use of or assume normal distribution, the sample size must be large. According tho the central limit theorem, a size of greater than 30 is deemed to be large enough. As the Same size increases, the sample mean converges to the value of the population mean.

Answer: 1928.90

Step-by-step explanation:

Answer:

I believe that its B, 3(x + 6)= 30

Answer:It is  B    3(x + 6)= 30

Answer:

They can run 32 times down the court

Step-by-step explanation:

Answer:

It is 1  4/7

Step-by-step explanation: