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maks197457 [2]
3 years ago
7

Choose two values, a and b, each between 8 and 15. Show how to use the identity a^3+b^3=(a+b)(a^2-ab+b^2) to calculate the sum o

f the cubes of your numbers without using a calculator
I really need help with this
Mathematics
1 answer:
qaws [65]3 years ago
5 0

Answer:

Step-by-step explanation:

a = 8

b  = 10

a^3 =8^3 = 512

b^3= 10^3 =1000

a^3 + b^3 = 1512

a^2 = 64

-ab = - 80

b^2 = 100

a + b=18

(a + b) (64 -  80+ 100)

18 * (84)

1512'

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Suppose the line of best fit for some data points has a slope of 1.885. If the mean of the x-coordinates of the data points is 3
larisa86 [58]

Step-by-step Answer:

One of the properties of a least-squares regression line (line of best fit) is that the line always passes through the point (xbar, ybar).

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If this helped I would appreciate it if you marked me Brainliest. thank you and have a nice day!

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