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boyakko [2]
3 years ago
5

Simplify the expression (11 – 6)2 + 6 × 2 – (3 + 3)2.

Mathematics
2 answers:
harkovskaia [24]3 years ago
8 0
5x2+6x2-6x2
Answer = 10
mezya [45]3 years ago
7 0
I got rid of the exponents (squared) by just multiplying them by themselves, BUT remember they were still Exponents (E below)
(11-6)(11-6) + 6 × 2 - (3+2)(3+2)
Follow your Order of Operation (OO):
One method is to remember the phrase "Please Excuse My Dear Aunt Sally", which forms the acronym [PEMDAS]. This stands for "Parentheses, Exponents, Multiplication and Division, and Addition and Subtraction".
So work your way from left to right, doing actions within parentheses first, next exponents... to lastly adding and or subtracting.
So we'll first do inside the parentheses:
(11-6)(11-6) + 6 × 2 - (3+2)(3+2) -->
(5)(5) + 6 × 2 - (5)(5) --> 25 + 6 × 2 - 25
Multiply (M) comes after E, so:
25 + (6×2) - 25 = 25 - 25 + (12) --> since 25-25 is 0, it's really just 0 × 12 = 12
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Generally it's dilation by a factor about a point is preserves similarity but not congruency.  Any transformation which includes such scalings but is otherwise rigid also preserves similarity but not congruency.


8 0
3 years ago
Find an angle between 0 and 2pi that is coterminal with the following angle.<br><br> 32pi/9
never [62]
<span>To do these you will be adding or subtracting  2pi (or integer multiples of .

Since the given angles are in fraction form, it will help to have 2pi  in fraction form, 2pi=10/5=6pi/3=4pi/2=18pi/9     NOTE: this>(/) stands for over like 1 over 2 EX. 1/2

too, so the addition/subtraction is easier.

Hint: When deciding if you have a number between 0 and 2pi, compare it to the fraction version of 2pi that you've been adding/subtracting.


For 17pi/5...
First we can see that 17pi/5 is more than 10pi/5 (aka 2pi). So we need to start subtracting: 17pi/5 - 10pi/5 = 7pi/5

Now we have a number between 0 and 10pi/5. So 7pi/5 is the co-terminal angle between 0 and 2pi.

I'll leave the others for you to do. Just remember that you might have to add or subtract  multiple times before you get a number between 0 and 2pi.
P.S don't add or subtract at all if the number starts out between 0 and 2pi.</span>
5 0
3 years ago
If the price of rail season tickets increases by 4% every year, work out the price after 3
Zarrin [17]

Answer:

3048 x 1.04 ^3 = 3428.585474

4 0
3 years ago
Consider a function of the form f(x) = 7x^2 + ax, where a is a real number. What is the difference quotient of f(x) for all nonz
mihalych1998 [28]

Answer:

c

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
Help with homework plzzzzz!!!!!!!!!!!!!
Zanzabum

I'm not good with intigers, but if you added two negative intigers together wouldn't it still be negative? If you added -1 to -2 you'd get -3. It would always be less than the two original integers.

7 0
3 years ago
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