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anzhelika [568]
3 years ago
10

Help somebody please please im begging you due in 20 minutes​

Mathematics
1 answer:
klasskru [66]3 years ago
7 0

Answer:

a) -7

b) -13.5

c) no

d) (-∞, -27/2)

Step-by-step explanation:

a) substitute the variable into the equation and simplify

b)simplify both sides then isolate the variable

c) -7 is not greater than 0

d) isolate the variable by dividing each side by the factors that don't contain the variable

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Vedmedyk [2.9K]

Answer:

135 cm²

Step-by-step explanation:

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3 0
3 years ago
I need help with these two questions
Mandarinka [93]

Answer:

(-2,-2)

Step-by-step explanation:

for question number 15...cordinated grid shows each equation...first equation is represented by straight line going upwards through +4 in y axis...(y=3x+4)...

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