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Leto [7]
3 years ago
12

Write a linear equation in slope intercept form to model a tree 4 feet tall the grows 3 inches per year

Mathematics
1 answer:
Hoochie [10]3 years ago
7 0
Y = 3x + 48  where x is your number of years. I got 48 by multiplying 4 and 12 since there are 12 inches in a foot. (:
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Two numbers whose sum is 44 and whose product is a maximum
Mashcka [7]

Answer:

x = y = 22

Step-by-step explanation:

It would help to know your math course. Do you know any calculus? I'll assume not.

Equations

x + y = 44

Max = xy

Solution

y = 44 - x

Max = x (44 - x)                    Remove the brackets

Max = 44x - x^2                   Use the distributive property to take out - 1 on the right.

Max = - (x^2 - 44x )               Complete the square inside the brackets.

Max = - (x^2 - 44x + (44/2)^2 ) + (44 / 2)^2 . You have to understand this step. What you have done  is taken 1/2 the x term and squared it. You are trying to complete the square. You must compensate by adding that amount on the end of the equation. You add because of that minus sign outside the brackets. The number inside will be minus when the brackets are removed.

Max = -(x - 22)^2 + 484

The maximum occurs when x = 22. That's because - (x - 22) becomes 0.

If it is not zero it will be minus and that will subtract from 484

x + y = 44

xy = 484

When you solve this, you find that x = y = 22 If you need more detail, let me know.


4 0
2 years ago
Jenny can type at a speed of 80 words per minute. It took her 20 minutes to type a report. How many words was the report?
horsena [70]
80words=1min so you would multiply 80 by 20 which is 1,600 words for 20 minutes
7 0
3 years ago
Read 2 more answers
What is the slope of the line represented by the equation y = –y equals negative StartFraction 2 Over 3 EndFraction minus 5 x. –
vlabodo [156]

Answer:

b

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
A box contains two purple marbles nine orange marbles and seven yellow marbles if you pick two without looking what is the proba
maw [93]

Answer:

1/4

Step-by-step explanation:

First, add up the marbles:

2 + 9 + 7  = 18

Multiply by 2 because you pick two:

18 × 2 = 36

Simplify:

9/36 = 3/12 = 1/4

Hope this helped.

8 0
2 years ago
I NEED HELP PLEASE, THANKS! :)
Aleonysh [2.5K]

but where is ur question ??????

5 0
2 years ago
Read 2 more answers
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