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pashok25 [27]
3 years ago
15

Since we have computer algebra systems that can solve polynomial division problems for us, why is it necessary to learn how to d

o these things by hand?
Mathematics
1 answer:
PSYCHO15rus [73]3 years ago
3 0

Answer:

Probably because learning to do polynomials by hand boosts understanding of the topic and improves general algebraic solving ability,both of which are required in further topics like advanced calculus and algebra

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kendrey ran 9 miles in 1 hour and 30 minutes. how long will it take her to run 12 miles at this pace?
castortr0y [4]
Turn hours into minutes

1hr = 60mins

Add the 60mins with 30mins since it’s 1hr and 30 mins. Which will equal 90mins


9miles/ 90minutes

You can simplify
1 mile/ 10 mins
So for 1 mile it takes 10 mins

And the problem is asking how much will it take for her to run 12 miles

Meaning it will take 120 minutes for her to run 12 miles.
6 0
3 years ago
The level of nitrogen oxides (NOX) in the exhaust after 50,000 miles or fewer of driving of cars of a particular model varies No
Greeley [361]

Answer:

For a level of 0.0174 or more of nitrogen oxide, the probability of fleet is 0.01.              

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 0.02 g/mi

Standard Deviation, σ = 0.01 g/mi

Sample size, n = 81

We are given that the distribution of  level of nitrogen oxides is a bell shaped distribution that is a normal distribution.

Standard error due to sampling:

=\dfrac{\sigma}{\sqrt{n}} = \dfrac{0.01}{\sqrt{81}} = 0.0011

Formula:

z_{score} = \displaystyle\frac{x-\mu}{\sigma}

We have to find the value of x such that the probability is 0.01

P(X > x)  

P( X > x) = P( z > \displaystyle\frac{x - 0.02}{0.0011})=0.01  

= 1 -P( z \leq \displaystyle\frac{x - 0.02}{0.0011})=0.01  

=P( z \leq \displaystyle\frac{x - 0.02}{0.0011})=0.99  

Calculation the value from standard normal z table, we have,  

\displaystyle\frac{x - 0.02}{0.0011} = -2.326\\\\x = 0.0174

For a level of 0.0174 or more of nitrogen oxide, the probability of fleet is 0.01.

5 0
3 years ago
Directions: Solve each problem. Show how you found each answer.
Misha Larkins [42]

Answer:

8 and a half hours

Step-by-step explanation:

Time arthur went to bed = 9:30 pm
Time arthur woke up = 6 am
Hours arthur was asleep = 24 - (9 and half + 6)
                                         = 24 - 15 and a half
                                         = 8 and a half

8 0
2 years ago
Gary's pay is $15 per hour. He receives a 6% pay raise.
kvv77 [185]

Answer:

Gary's new pay rate is $15.90 per hour.

Step-by-step explanation:

15 + 6% = 15.9

3 0
3 years ago
∠B=angle, B, equals
FinnZ [79.3K]

Answer:

100

0

Step-by-step explanation:

3 0
3 years ago
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