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dlinn [17]
3 years ago
12

Evaluate 4. (106) - 5°​

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

Answer:

101°

Step-by-step explanation:

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From 12,000 graphing calculators produced by a​ manufacturer, an inspector selects a random sample of 550 calculators and finds
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Answer:

131

Step-by-step explanation:

Using proportion,

If Out of 550 calculators = 6 are defective,

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\frac{12000 calculators}{550calculators} * 6

= 21.8 * 6

= 130.8 ≈ 131

∴ Approximately 131 calculators are defective

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3 years ago
Huang buys 3 shirts that each cost the same amount, a pair of pants that cost $12, and he pays with a $100 bill. Which expressio
iris [78.8K]

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100=3x - 12

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3 shirts

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3 0
3 years ago
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12. What percent of 60 is 12? Show your work.
lora16 [44]
12 is 20% of 60 because 12/60 = 0.2.
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3 years ago
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An architect is designing square windows with an area of(x2 + 16x +64) ft?. The dimensions of the
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A) The dimensions are (x+10) by (x+10).

B) The perimeter is given by 4x+40.

C) The perimeter when x is 4 is 56.

The quadratic can be factored by finding factors of c, the constant, that sum to b, the coefficient of x.  Our c is 100 and our b is 20; we want factors of 100 that sum to 20.  10*10=100 and 10+10=20, so those are what we need.  This gives us (x+10)(x+10 for the factored form.  

Since the dimensions are all (x+10), and there are 4 sides, the perimeter is given by 4(x+10).  Using the distributive property we have 4*x+4*10=4x+40.

To find the perimeter when x=4, substitute 4 into our perimeter expression:

4*4+40=16+40=56.

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2 years ago
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Which model represents the factors of 4x²-9?
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Step-by-step explanation:

(

2

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