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densk [106]
3 years ago
15

Question 4

Mathematics
1 answer:
Anna [14]3 years ago
5 0

Answer:

f(1)= 12-31+7

Step-by-step explanation:

f(1) = -12

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tigry1 [53]
<h3>Answer: E) 1/5</h3>

========================================================

Method 1

Use your calculator to find the decimal version of each fraction

  • 4/10 = 0.40
  • 12/25 = 0.48
  • 14/20 = 0.70
  • 28/50 = 0.56
  • 1/5 = 0.20

We see that 0.20 is the smallest decimal of the list, so 1/5 is the smallest fraction of the list.

----------------------------

Method 2

To compare fractions, we need to get all of the denominators to the same value. A good target is the lowest common denominator (LCD)

In this case, the LCD is 100

  • 4/10 = 40/100 .... multiply top and bottom by 10
  • 12/25 = 48/100 .... multiply top and bottom by 4
  • 14/20 = 70/100 .... multiply top and bottom by 5
  • 28/50 = 56/100  .... multiply top and bottom by 2
  • 1/5 = 20/100  .... multiply top and bottom by 20

The last fraction has the smallest denominator, so 1/5 is the smallest.

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3 years ago
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I’m not sure
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6 0
2 years ago
What is the slope between the points (2, 3) and (-1, 12)
Scrat [10]

Answer:

\huge  \boxed {slope =  - 3}

Step-by-step explanation:

m =  \frac{rise}{run}

The slope is the change of y over the change of x.

m =   \frac{12 - 3}{ - 1 - 2}  \\ m =  \frac{9}{ - 3}  \\ m =  -  \frac{9}{3}   \\ m =  - 3

Therefore, the slope is -3.

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What is the solution to this equation? 6+7(b−1)=5+b
Ratling [72]
6 + 7b - 7 = 5 + b
7b - 1 = 5 + b
7b = 5 + b + 1
7b = b + 6
7b - b = 6
6b = 6
b = 1

Answer: B)
6 0
3 years ago
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