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ra1l [238]
3 years ago
9

Solve the system by substitution. y = 3x + 28 y = -4x

Mathematics
1 answer:
Mazyrski [523]3 years ago
3 0

Answer:

(-4, 16)

Step-by-step explanation:

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Help me<br> On this pleaseee
Evgen [1.6K]
2 rectangle shaped
1) Length = 160 mi ; Width = 40 mi
2) Length = 440 mi - 160 mi ; Width = 240 mi - 70 mi

1 triangle shape
1) base = 70 mi ; height = 440 mi - 160 mi

Area Rectangle 1 = 160 mi * 40 mi = 6,400 mi²
Area Rectangle 2 = 280 mi * 170 mi = 47,600 mi²
Area Triangle 1 = ((440 mi - 160 mi) * 70mi)/2 = (280mi * 70mi)/2 = 9,800 mi²

Total Area = 6,400 mi² + 47,600 mi² + 9,800 mi² = <span>63,800 mi²</span>
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3 years ago
What value of coefficient b makes the equation true for any real number x?<br> 3(2x - 3)+ 5 = bx +9
Natali [406]

Answer:

x=58

Step-by-step explanation:

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3 years ago
What would the graph of the solution to the following inequality look like?
yan [13]

Answer: A. An OPEN circle on the number 5 and an arrow shading to the RIGHT.

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3 years ago
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-BARSIC- [3]
Hello!

The answer is 34°

Hope this helps!
7 0
3 years ago
Solve X²-5X-14=0 using quadratic formula
il63 [147K]

Answer:

x=-2 or x=7

Step-by-step explanation:

X²-5X-14=0  find the factors of -14x² which is -7x and +2x

X² -7x + 2x - 14 = 0   factorize

x(x-7) + 2(x-7) = 0

(x+2)(x-7) =0

x+2 = 0 or x-7= 0

x=-2 or x=7

6 0
3 years ago
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