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zysi [14]
2 years ago
6

Can somebody please help me

Mathematics
2 answers:
a_sh-v [17]2 years ago
8 0

Answer:

Step-by-step explanation:it’s number 4

laila [671]2 years ago
3 0

Answer:

think it is D but i dont know

Step-by-step explanation:

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True or False: In scientific notation a number is written m X 10^w where m is between 1.000 and 9.999...
Bogdan [553]

Answer: True

Step-by-step explanation:

We try to keep the number greater than 1 and lower than 10, so between 1, and 9.

For example: 3545346 would be 3.5x10^6

you can see 3.5 is between 1 and 9

8 0
2 years ago
If z=13 which equation is true
Lady_Fox [76]
You did not provide an image of the question or the question.
5 0
1 year ago
A sound wave has a frequency of 125 Hz and a speed 5000 m/s What is the wavelength of the wave
kipiarov [429]

The wave length of the sound with parameters frequency of 125 Hz and a speed 5000 m/s is 40 meters

<h3>Given Data</h3>

velocity = 5000 m/s

frequency = 125 Hz

wavelength = ??

We know that the relationship between speed, frequency and wavelength is given as

v = fλ ----------------------------1

substitute our given parameters

5000 = 125 * λ

Divide both sides by 125

λ = 5000/125

λ = 40 m

Hence the wave length of the sound is 40 meters

Learn more about sound here:

brainly.com/question/24544245

5 0
2 years ago
24 = -6 (m+1) + 18 <br> What is the answer?
kirill115 [55]

Answer:

m = -2

Step-by-step explanation:

24 = -6(m + 1) + 18 (Given)

24 = -6(m) + -6(1) + 18 (Distributive Property of Equality)

24 = -6m - 6 + 18 (Simplify)

24 = -6m + 12 (Simplify)

24 - 12 = -6m + 12 - 12 (Subtraction Property of Equality)

12 = -6m (Simplify)

\frac{12}{-6} = \frac{-6m}{-6} (Division Property of Equality)

-2 = m (Simplify)

m = -2 (Distributive Property of Equality)

3 0
2 years ago
The area of a duck enclosure is 300 square feet, with 100 square feet occupied by a pond. Each duck in the enclosure needs more
SVEN [57.7K]
Answer: Choice B) x < 10

=======================================================

Explanation:

There's 300 square feet total (land+water). Of that, 100 sq ft is taken up by the pond, so we have 300-100 = 200 sq ft of dry land. 

1 duck needs more than 20 sq ft of dry land
2 ducks need more than 40 sq ft of dry land (note how 2*20 = 40)
3 ducks need more than 60 sq ft of dry land (note how 3*20 = 60)
and so on...

In general, 
x ducks need more than 20*x square feet of dry land

The max amount of dry land we have is 200 sq ft
The total amount of space the ducks take up must be less than 200 sq ft

In terms of symbols, we have
T = total space ducks take up on dry land
T = 20*x
T < 200

So we can arrive at this inequality
20*x < 200
after replacing the "T" with "20*x"

Afterward, divide both sides by 20
20*x < 200
20*x/20 < 200/20
x < 10
So we must have less than 10 ducks

If we had 10 ducks exactly, then they would take up more than 20*10 = 200 sq ft, but we only have 200 sq ft

The largest number of ducks we can have is 9 ducks.
So that's why we have a "less than" symbol instead of a "less than or equal to" symbol.
5 0
2 years ago
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