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Stolb23 [73]
3 years ago
10

What is r squared+7r+6=0

Mathematics
1 answer:
Firlakuza [10]3 years ago
7 0

Answer:

r = -6, -1

Step-by-step explanation:

r^2 + 7r+6 =0

Factor

What 2 numbers multiply to 6 and add to 7

6*1 =6

6+1 =7

(r+6) (r+1) =0

Using the zero product property

r+6 =0        r+1 =0

r = -6            r=-1

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What number could be added to 0.40 mL for the level pf precision to be 0.01mL?
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Answer:

-0.39mL

Step-by-step explanation:

Let x be the number.

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3 years ago
The Range Rule of Thumb roughly estimates the standard deviation of a data set as​ _______.
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Answer:

Option A)

s = \dfrac{\text{Range}}{4}        

Step-by-step explanation:

Range Rule of Thumb

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  • Thus, the correct answer is

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3 years ago
Big Ben, the famous clock tower in London, has a minute hand that is 14 feet long. How far does the tip of the minute hand of Bi
ycow [4]

Answer:

36.65 ft (2 dp)

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2 years ago
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