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Olenka [21]
3 years ago
15

How many degrees has ABC been rotated counterclockwise about the origin?

Mathematics
2 answers:
andre [41]3 years ago
8 0

Answer:

270 degrees.

Step-by-step explanation:

If the rotation was clockwise we would get to A'B'C'.

This is equivalent to a 360 - 90 = 270 degree counterclockwise rotation.

omeli [17]3 years ago
3 0

Answer:

C

Step-by-step explanation:

It would take 90 degree to rotate clockwise so it will take 360-90=270 degree to rotate counterclockwise

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In a regression equation predicting income (measured in $1000s) with education (measured in years), the intercept (a) equals 1.5
Sindrei [870]

Answer:

a. at zero years of education, income equals $1500

Step-by-step explanation:

The equation for income 'I', as a function of years of education 't' is given by:

i(t) = bt+a

Where b is the regression coefficient and a is the intercept.

The intercept is the value assumed by the function for t = 0 years of education:

i(0) = 0*4 +1.5\\i(0) = 1.5

Since the income function measures income in $1,000s, at zero years of education, income equals $1500

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3 years ago
Factor completely. 2x^4+4x^3-30x^2
kramer

Answer:

Step-by-step explanation:

2x⁴ + 4x³ - 30x² = 2x²*(x² + 2x - 15)

x² + 2x - 15

Sum = 2

Product = -15

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2x⁴ + 4x³ - 30x² = (2x²) (x + 5)(x - 3)

7 0
3 years ago
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2 years ago
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Step-by-step explanation:

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