Add the following polynomials:
3a3 + 8a - 6 and 4a2 - 9a + 11

Step-by-step explanation:

Add the following polynomials:

To add the polynomials we combine like terms

The terms with same variables are like terms

8a and -9a are like terms

8a - 9a = -1a

-6 +11= 5

t = 3

step-by-step explanation:

put t = 3 in this expression :

(3²-1)(3²-2)(3² - 3)(3² - 4) = 8×7×6×5 = 56×30 = 1680

the answer is b: 18

step-by-step explanation:

use the pythagorean theorem to .

a^2+b^2=c^2

plug 18 for "r"

the 2 legs are 18 and 24

18^2+24^2=c^2

324+576=c^2

900=c^2

c=30

30-12=18

18 is the radius

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