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Zigmanuir [339]
3 years ago
9

PLEASE ANSWER THIS 30 POINTS

Mathematics
1 answer:
Sever21 [200]3 years ago
6 0

Answer: A C E prob idk

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Find f^-1(x) and it’s domain.
Mrac [35]

Answer: A

Step-by-step explanation:

Letting f(y)=x,

x=\sqrt{y}-5\\\\x+5=\sqrt{y}\\\\y=(x+5)^{2}

Also, the domain of an inverse is the same as the range of the original function, so the range is x \geq 0

7 0
2 years ago
Pete has an old playstation that he bought for $400.
katrin2010 [14]

Answer:

1 year= $280

Step-by-step explanation:

30% of 400= 0.3 * 400= 120

400-120= 280

after one year the playstation cost 280

30% of 280= 0.3 * 280= 84

280-84= 196

after 2 years it cost $196

multiply the number by 0.3 to get 30% of the total

 

7 0
2 years ago
Read 2 more answers
Story Problem
Agata [3.3K]

Answer:

41.15

Step-by-step explanation:

41.15

7 0
3 years ago
Write a pair of equivalent expressions using distributive property
bulgar [2K]
The distributive property "distributes" a number through all numbers/terms in a set of parentheses by multiplication.


EXAMPLES
Equivalent expressions are the first and last steps. The middle step just shows the work.

5(2 + 3x)= (5*2) + (5*3x)= 7 + 15x

4(2x + 4y)= (4*2x) + (4*4y)= 8x + 16y

10(4x + 5)= (10*4x) + (10*5)= 40x + 50


ANSWER:
Only one pair below is needed for your answer.

5(2 + 3x)= 7 + 15x

4(2x + 4y)= 8x + 16y

10(4x + 5)= 40x + 50


Hope this helps! :)

7 0
2 years ago
Simplify. 4ab5c(3a4b2c3)<br> a. 12a5b3c4<br> b. 12a5b7c4<br> c. 12a5b10c4<br> d. 12a4b10c3
Brilliant_brown [7]
4ab^5c (3a^4b^2c^3) = 12a^5b^7c^4...answer B
4 0
3 years ago
Read 2 more answers
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