Simplify : -26b^2 + (-27b^2)

2 answers:

5 0

-53b² is the correct answer. First you had to remove parenthesis first, and it gave us, $-26b^2-27b^2$ . And then add similar elements, and it gave us the answer is $-26b^2-27b^2=-53b^2$ , or -53b² is the right answer. Hope this helps! And thank you for posting your question at here on brainly, and have a great day. -Charlie

IgorLugansk [536]3 years ago

3 0

Step by step solution :

Step 1 :

Equation at the end of step 1 :

(0 - (26 • (b2))) + (0 - 33b2)
Step 2 :

Equation at the end of step 2 :

(0 - (2•13b2)) + -33b2
Step 3 :

Final result :

-53b2

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What is the reference angle for 11pi/6? Explain your thinking.

il63 [147K]

First we need to see in which quadrant 11pi/6 lies And it lies in fourth quadrant. And to find the reference angle in the fourth quadrant, we need to subtract the given angle from 2 pi . For e.g if the angle is 5pi/3, then the reference angle is 2pi - (5pi/3) = pi/3 .

So for the given question, reference angle of 11pi/6 is

$2 \pi - \frac{11 \pi}{6} = \frac{ \pi}{6}$