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n200080 [17]
3 years ago
6

I need the rate of change

Mathematics
2 answers:
zhenek [66]3 years ago
6 0

Answer:

2 irdk but i hope it help

YW

bagirrra123 [75]3 years ago
3 0

Answer:

<em>2</em>

Step-by-step explanation:

(8, 11)

(- 3, - 11)

Rate of change <em>m </em>= \frac{y_{2} -y_{1} }{x_{2} -x_{1} } = \frac{-11-11}{-3-8} = <em>2</em>

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Kevin recently accepted a job at a Lucky Seven store 17 miles from his house. Use the
RideAnS [48]

Something is missing there is no given. But here are the given for this question:

Salary = $8.75 per hour

40 hour work week

52 work week per year

5 days of work per week

Gas mileage is 21 miles per gallon

Gas costs is 1.26 per gallon

Average speed is 45 miles per hour

Daily round trip to work and back home is 34 miles

a. Kevin’s annual salary is 8.75 per hour x 40 hour work week x 52 work week per year

= $18,200

b. Kevin will spend on fuel each week:

34 miles daily round trip x 5 day work week divided by 21 miles per gallon x 1.26 per gallon

= $10.20

c. Kevin will spend _ hours on commuting

= 34 miles is the daily round trip x 5 day work week divided by 45 miles average speed per hour

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7 0
3 years ago
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Plss help i beg you!​
frosja888 [35]

Answer:

  • 51

Step-by-step explanation:

<u>Given expression:</u>

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<u>Find its value when x = 4 and y = 1, substitute:</u>

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7 0
3 years ago
. What are the exact solutions of x2 - x - 4 = 0?
Dimas [21]
X ² - x - 4 = 0
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x_{2} =  \frac{1- \sqrt{17} }{2}= - 1.56
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7 0
3 years ago
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Can you help me to solve this​
Ber [7]

Answer:

\frac{4a-2}{2a+1}

Step-by-step explanation:

Factorise the numerator and denominator

8a² - 2 ← factor out 2 from each term

= 2(4a² - 1) ← 4a² - 1 is a difference of squares

= 2(2a - 1)(2a + 1)

4a² + 4a + 1 ← is a perfect square

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Thus

\frac{8a^2-2}{4a^2+4a+1}

= \frac{2(2a-1)(2a+1)}{(2a+1)(2a+1)} ← cancel (2a + 1) on numerator/ denominator

= \frac{2(2a-1)}{2a+1}

= \frac{4a-2}{2a+1}

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3 years ago
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For a scale of 1cm: 12km what is the actual length represented by 1.7 cm
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It would be 20.4 km because if 1cm is 12km then you just have to multiply 1.7 x 12 = 20.4. 
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