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galina1969 [7]
3 years ago
10

NEED HELP ASAP!!!!!!!!!!!!!!!

Mathematics
1 answer:
adoni [48]3 years ago
4 0

Answer:

the answer is a

Step-by-step explanation:

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5-7y/2+4y equals -8/7​
Ksenya-84 [330]

Answer:

\boxed{y = 3}

Step-by-step explanation:

=  > \frac{5 - 7y}{2 + 4y}  =  -  \frac{8}{7}  \\  \\  =  > 7(5 - 7y) =  - 8(2 + 4y) \\  \\  =  > (7 \times 5) - (7 \times 7y) = ( - 8 \times 2) + ( - 8 \times 4y) \\  \\  =  > 35 - 49y =  - 16  - 32y \\  \\  =  > 35 - 49y + 32y =  - 16 \\  \\  =  > 35 - 17y =  - 16 \\  \\  =  - 17y =  - 16 - 35 \\  \\  =  >   \cancel{- }17y =  \cancel{- } 51 \\  \\  =  > 17y = 51 \\  \\  =  > y =  \frac{51}{17}  \\  \\  =  > y = 3

4 0
4 years ago
Is 10”3 equal to 100?
lawyer [7]
No, 10”3 is equal too 1000. 10”2 is equal too 100
6 0
4 years ago
1.) Is y= cosx/x an even, odd , or neither <br><br> 2.) Is y=sinx/x and even, odd , or neither
Marrrta [24]

Answer:

Step-by-step explanation:

1) y = (cos x) / x is neither, since cos x is even and x is odd.  Expressions such as this are neither even nor odd. /

2) y = (sin x) / x is even, since sin x and x would either both be positive at the same time or negative at the same time.  Recall that (-) / (-) is positive, just as (+) / (+) is positive.

6 0
3 years ago
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