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ivann1987 [24]
3 years ago
9

Double check some of my work please?

Mathematics
1 answer:
zubka84 [21]3 years ago
7 0
The answer to the first one is 6 not 0, (pemdas)

second is correct

third is correct cause they only have 8 points and your equation matches that :)
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The perimeter of a rectangle is 15x + 17 y if the length is 7/2x + 7y then find the width of the rectangle A) 4x + 3/2y B) 8x +
tigry1 [53]
The equation for the perimeter of a rectangle:

P = 2L + 2W

We’re given P and L and asked to find W:

15x + 17y = 2(7/2x + 7y) + 2W
15x + 17y = 7x + 14y + 2W
2W = 8x + 3y
W = 4x + 3/2y

Answer is A.
3 0
4 years ago
(y + 2x - 3) + (27²-y-3​
ArbitrLikvidat [17]

Answer:

=2x+723

Step-by-step explanation:

y+2x−3+272−y−3

=y+2x+−3+729+−y+−3

Combine Like Terms:

=y+2x+−3+729+−y+−3

=(2x)+(y+−y)+(−3+729+−3)

=2x+723

3 0
3 years ago
What is equivalent to -1/4 - 5/3
Stolb23 [73]

-3/12 - 20/12 is equivalent to -1/4 - 5/3

7 0
3 years ago
<img src="https://tex.z-dn.net/?f=lg%20%5Cfrac%7B1%7D%7B256%7D%20%20-%20lg%20%5Cfrac%7B125%7D%7B4%7D%20%20-%203%20lg%20%5Cfrac%7
salantis [7]

Answer:

0

Step-by-step explanation:

log 1/256 - log 125/4

= log ( 1/256 * 4/125)

= log (1/8000)

log (1/8000)  - 3 log 1/20)

Now  3 log 1/20 = log (1/20)^3 = log (1 / 8000) so we get

log (1 / 8000) - log (1 / 8000)

= 0






7 0
3 years ago
Math sucks at times and we all know that. So, instead of coming onto Brainly for every answer to your math, this website gives y
skelet666 [1.2K]

Answer:

thanks

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
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