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soldier1979 [14.2K]
3 years ago
15

Jack is going to drive from his house to City A without stopping. An equation that determines Jack's distance from City A t hour

s after leaving his house is D=220-55t. What is the y-intercept of the equation and what is its interpretation in the context of the problem?
Delta Math
Mathematics
2 answers:
Advocard [28]3 years ago
8 0

Answer is in the photo. I can't attach it here, but I uploaded it to a file hosting. link below! Good Luck!

tinyurl.com/wpazsebu

Yuki888 [10]3 years ago
8 0

whats the answer  but search it up

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If a and b are positive numbers, find the maximum value of f(x)=xa(1−x)b, 0≤x≤1 Your answer may depend on a and b.maximum value
xeze [42]

Answer:

0.25ab

Step-by-step explanation:

Data provided in the question:

f(x) = xa(1−x)b, 0≤x≤1

or

f(x) = ab(x−x²)

for point of maxima and minima put f'(x) = 0

Thus,

f'(x) = ab(1 - 2x) = 0

or

1 - 2x = 0

or

x = \frac{1}{2} = 0.5

Now,

to check the condition of maxima or minima

f''(x) = ab(0 - 2) = -2ab

since,

f''(x) < 0

therefore,

x = 0.5 is point of maxima

and the maximum value at x = 0.5 of the function is

f(0.5) = ab(0.5 - 0.5²)

= ab(0.25)

= 0.25ab

5 0
3 years ago
Matt works at a job where he makes a
melamori03 [73]

Answer:

Step-by-step explanation:

Matt makes $50 per sale because 50x3=150 so the answer would be $50.

7 0
3 years ago
A cashier worked an 8-hour day, and earned $58.00. The double number line shows the amount she earned for working different numb
pav-90 [236]

Answer:

$7.25=1hr      $21.75=3hrs

Step-by-step explanation:

$58=8hrs

58/8=7.25

$7.25=1hr

7.25x3=21.75

$21.75=3hrs

Hope this helps :)

8 0
2 years ago
Which is an example of dealer incentives?
Shkiper50 [21]
Dealer incentive : A corporate sales strategy in which the price a dealer has to pay a manufacturer for a particular product is reduced, allowing the dealer to make a higher profit.

so ur answer is : Sun car dealers pay $18,000 to Galaxy car manufacturers for a car worth $20,000.
5 0
3 years ago
Read 2 more answers
Guys please help me solve this problem, yes I will mark brainliest
lyudmila [28]

Given that the vertex is at (50, 1000), the max profit is $1000 when 50 items are produced

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3 years ago
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