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IRISSAK [1]
3 years ago
5

Please help!

Mathematics
2 answers:
motikmotik3 years ago
5 0

Answer:

A.

Step-by-step explanation:

Step 1: Write equation

x² - 8x = 3

Step 2: Solve for <em>x</em>

  1. Complete the Square: x² - 8x + 16 = 3 + 16
  2. Factor: (x - 4)² = 19
  3. Square root both sides: x - 4 = ±√19
  4. Add 4 to both sides: x = 4 ± √19
Levart [38]3 years ago
5 0

Answer:

A

Step-by-step explanation:

because when doing these equations it is the same except one is positive and one is negative

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Answer:

c = $7n + $6

Step-by-step explanation:

$6 shipping for any size

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let n equal the quantity of necklaces and c equal the total cost.

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7 0
3 years ago
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Solve –16t² +144= 0 to find the number of seconds, t, it takes for an object dropped from 144 ft above the ground to hit the gro
Vlad1618 [11]

Answer:

h(t) = -16t2 + 144

h(1) = -16(12) + 144 = 128 ft

h(2) = -16(22) + 144 = 80 ft

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It reaches the ground when h(t) = 0

0 = -16t2 + 144

t = √(144/16) s = 3s

It reaches the ground 3s after being dropped.

Step-by-step explanation:

6 0
2 years ago
If x = 4 and y = 7, evaluate the - following expression: 20 +2(3y - 4x)​
Andrei [34K]

Answer:

30

Step-by-step explanation:

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8 0
3 years ago
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a herd of 86 horses has 75 white and some black horses.what is the ratio of black horses to white horses?
Naddik [55]

Answer:11 black horses : 75 white horses

Step-by-step explanation:

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Does this seem answer seem correct?
Blababa [14]
I mean I think so I’m not completely sure it’s a really hard question
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3 years ago
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