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Alexxandr [17]
4 years ago
12

Need the answers for 8 and 9 ASAP! WILL MARK BRAINLIEST!!

Mathematics
2 answers:
Elza [17]4 years ago
8 0

Answer:

8) \frac{2^8}{2^8} = 1

9)2^83^4=20736

lions [1.4K]4 years ago
7 0

Answer:

8.1

9.idk

Step-by-step explanation:

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3. Write an equation where the left side is your power of 10 times n and the right side
rjkz [21]

Answer:

10*0.11515

Step-by-step explanation:

3 0
3 years ago
The frequency of a radio wave varies inversely with its wavelength. If a 100-meter wave has a frequency of 3,000 kilohertz, what
Tanzania [10]

Let the frequency be 'f' and wavelength be 'w'

f\alpha \frac{1}{w}

f =  \frac{k}{w} , k\neq 0

w= 100 m and f = 3,000 kilohertz

Plug in the above values to find k

3000 = \frac{k}{100}

To find k, multiply both side by 100

3000(100) = k

k = 300,000

So equation becomes,

f =  \frac{300,000}{w}

w= ? f = 500 kilohertz

500 = \frac{300,000}{w}

w = \frac{300,000}{500}

w = 600 m


3 0
3 years ago
Read 2 more answers
(-0.5x-0.4)-8(0.75x-0.6)​
SashulF [63]

Answer: -6.5x+4.4

Step-by-step explanation:

7 0
4 years ago
HailyDenney2 I need your assistance please!
Marina86 [1]

Answer:

x = 83 degrees

Step-by-step explanation:

35 + 28 = 63

63 + 34 = 97

180 - 97 = 83

6 0
3 years ago
PLEASE HELP ASAP I WILL GIVE BRAINSLET TO THE CORRECT ANSWER!!!!!!!!!!
cestrela7 [59]

<u>Answer</u>:

Therefore has one solution.

<u>explanation</u>:

Given equations:

6x + y = -7

-24x -7y = 25

Make y the subject:

6x + y = -7

y = -7 - 6x ..............equation 1

-24x -7y = 25

-7y = 25 + 24x

y = (25 + 24x)/-7 ..........equation 2

Solve them simultaneously:

(25 + 24x)/-7 = -7 - 6x

25 + 24x = -7 (-7 - 6x)

25 + 24x = 49 + 42x

42x - 24x = 25- 42

18x = -24

x = -\frac{4}{3}

Then y is:

y = -7 - 6x

y = -7 - 6( -\frac{4}{3})

y = 1

Has one separate value of x and y: (  -\frac{4}{3} , 1 ); so it has one solution.

3 0
3 years ago
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