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Triss [41]
3 years ago
14

Using the protractor, find the angle measure.

Mathematics
1 answer:
Andrej [43]3 years ago
4 0

Answer:

140°

Step-by-step explanation:

155°-15° =140°

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Multiplying binomials: (a+7) * (a-4)
oee [108]
<span>(a+7) * (a-4)

a^2 - 4a + 7a - 28

a^2 + 3a - 28</span>
4 0
3 years ago
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B) 5(2x - 4)<br> Expand the following
jeka94

Answer:

10x-20

Step-by-step explanation:

(5×2x)-(5×4)

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8 0
3 years ago
A bookstore costs $96 a day to keep open, and it spends $12 for each book that it sells. If each book sells for $18, what is the
asambeis [7]

Answer: The break even point is when they have sold 16 books and have made $288

Step-by-step explanation:  The costs are modeled in the equation y = 12x + 96.  x is the number of books sold.

The earnings are modeled by he equation y = 18x.

Substitute 18x for y and solve for x.

18x = 12x + 96  Subtract 12x from both sides.

6x = 96 Divide both sides by 6

x = 16

Substitute into the original equations to solve  for y

y = 12(16) + 96

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7 0
3 years ago
4y − 3x − 2y 11 x − 2 x
Inessa05 [86]
By rearranging it:
-3x-2x-22xy+4y
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4 0
3 years ago
In a bolt factory, machines 1,2, and 3 respectively produce 20%, 30% and 50% of the total output. of their respective outputs 5%
lorasvet [3.4K]

Answer:

a. 1/10 or 10%

b. 1/2 or 50%

Step-by-step explanation:

Since the combination of machines 1, 2 and 3 produce 100% of the total output when added together, then the probability of choosing a bolt at random that is defective is: 5 + 2 + 3 = 10% out of 100% or 10/100, which is 1/10 or 10%.

If the bolt that is choosen at random is defective, than the probability that it came from machine 1 is 5/10 or 1/2 which is also 50%.

3 0
3 years ago
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