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slavikrds [6]
3 years ago
9

Using the order of operations rule, solve the following: 12 ÷ 2 + 4 – 2 × 3 = ?

Mathematics
2 answers:
Naddik [55]3 years ago
8 0

The answer is 4. A good way to solve order of operations is through PEMDAS

svet-max [94.6K]3 years ago
4 0

12 ÷2+4-2×3=

First you would do the division because there are no parentheses and no exponents and you would end up with

6+4-2×3

Then you do the multiplication and would end up with

6+4- 6

Next is addition

10-6

and then simplify and you end up with 4

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Is it 7^12 not so sure ._.
Alekssandra [29.7K]
You are correct, it is.
6 0
3 years ago
A. 0.12<br> B. 0.13<br> C. 0.14<br> D. 0.15<br> Explain why you chose the answer
blagie [28]
The answer is C. 0.14
8 0
3 years ago
If f(x) =7x+5/3-x, then show that fof power -1(x) is an identity function ​
Irina-Kira [14]

If f(X)= 7x +5/3 - x =6x +5/3

y= 6x +5/3

6x= y-5/3

f^-1(y)=x=(y-5/3)/6

So we can write

f(f^-1(y))= f((y-5/3)/6) = 6 (y-5/3)/6 +5/3= y-5/3+5/3= y

The same result can be obtained for f^-1(f(x))=x

If the function is f(x)= 7x +5/(3-x) then it is not invertible since it is not injective (pictures)

4 0
3 years ago
When you multiply a pair of conjugates you get a real number
marusya05 [52]

Answer: The complex conjugate has a very special property. Consider what happens when we multiply a complex number by its complex conjugate. We find that the answer is a purely real number  it has no imaginary part. This always happens when a complex number is multiplied by its conjugate the result is real number.

Real numbers can be positive or negative, and include the number zero. They are called real numbers because they are not imaginary, which is a different system of numbers

Step-by-step explanation: Every complex number has a complex conjugate. The complex conjugate of a + bi is a - bi. For example, the conjugate of 3 + 15i is 3 - 15i, and the conjugate of 5 - 6i is 5 + 6i.

4 0
3 years ago
On number 19 this needs to be shown full work I don’t know where to start can someone help me now ASAP!!!
DENIUS [597]

Answer:

1

sorry if I'm wrong, I'm in the 7th grade lol, did my best :) hope I sortof helped

Step-by-step explanation:

5-2=3

square root of 3 with 3 is 1

5 - 2 = 1 \\ 3 \sqrt{3 = 1}

7 0
3 years ago
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