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Minchanka [31]
3 years ago
15

If x ¤ y = (x + y)² - (x - y)² Then √5 ¤ √5 =

Mathematics
1 answer:
Hoochie [10]3 years ago
5 0
x\ \diamond\ y=(x+y)^2-(x-y)^2=x^2+2xy+y^2-(x^2-2xy+y^2)\\\\=x^2+2xy+y^2-x^2+2xy-y^2=4xy\\\\\sqrt5\ \diamond\ \sqrt5=4\cdot\sqrt5\cdot\sqrt5=4\cdot5=20
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Before starting their graduate studies, a student wants to rent an apartment near the university. She wants to learn how the dis
madreJ [45]

Answer:

The resulting residual value is e=-40.24.

Step-by-step explanation:

The residual value e for a regression model is defined as the difference between the real value y and the predicted value yp:

e=y-y_p

The predicted value for DISTANCE=0.43 miles is:

RENT = 1200.4326 - 256.2567\cdot DISTANCE\\\\RENT(0.43) = 1200.4326 - 256.2567\cdot 0.43\\\\RENT(0.43) = 1200.4326 - 110.1904=1090.2422\\\\

Then, if the real value is $1,050, the residual value is calculated as:

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5 0
2 years ago
What is 31=xy+15? for segment addition
kati45 [8]

Answer:

x = 16/y

or

y =16/x

Step-by-step explanation:

31=xy+15

subtract 15 from both sides of the equation:

xy = 16

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or

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6 0
2 years ago
Given that f(x)=x^2-3x-54 and g(x)=x+6, find (f•g)(x) and express the result in standard form
love history [14]

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Step-by-step explanation:

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7 0
2 years ago
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ch4aika [34]

Answer:

The population of Bear in 2050 is 4750000

Step-by-step explanation:

A) The exponential growth equation for bear is as follows -

dN/dT = rmax * N

Where dN/dT = change in population

rmax is the maximum rate of change

N = Base population

B) Here the per capita rate of increase (r) will always be a positive value irrespective of the and hence we will assume this population to be growing exponentially.

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8 0
2 years ago
HELP ME OUT GUYS!!!! Question is in the screenshot below.
Lostsunrise [7]
Im pretty sure it’s C. 9 times longer
4 0
2 years ago
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