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Vadim26 [7]
3 years ago
13

-5.7 (4x - 7.3y + 8.1x - 2)​

Mathematics
1 answer:
VikaD [51]3 years ago
3 0

Answer: -68.97x+ 41.61y+11.4

Step-by-step explanation:

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if you go out to eat with 3 friends and your meal was $72.50, there is 6.75% sales tax and you should tip the waiter 15%. how mu
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Calculate cardiac output if the heart rate is 125 beats/minute, the end-diastolic volume is 130 ml, and the end-systolic volume
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weqwewe [10]
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3 years ago
Evaluate 3m to the second power n to the -2nd power for m= 2 and n= -3
Harlamova29_29 [7]

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4 0
3 years ago
Read 2 more answers
DIFFICULT EXACT TRIGONOMETRY, NON-CALCULATOR, PLEASE HELP
laila [671]

Step-by-step explanation:

area of quadrilateral = sum of area of triangles

area of triangle ADC = .5 * b * h

= .5 * 12 * 5 = 30 km^2

area of ∆ABC = .5 * sinx* ab* ac

= .5 * sin 30 * 3* 13 = 39/4 = 9.75 km^2

area of quadrilateral = 39.75 km^2

total cost =$ 397.5 million

8 0
2 years ago
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