3 years ago

Which function has an inverse that is a function?

Mathematics

1 answer:

nalin [4]3 years ago

3 0

C is the answer !!!!!!!!!

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Б) 3х2 – 10 = 152<br>how to solve with square root

Tju [1.3M]

Answer:

$3\sqrt{6}$ and $-3\sqrt{6}$

Step-by-step explanation:

We will take numbers to one side and variables to one side eliminate the "Square" with "Square Root" and solve for the variable x. The process is shown below:

$3x^2-10=152\\3x^2=152+10\\3x^2=162\\x^2=\frac{162}{3}\\x^2=54\\x=\sqrt{54}$

Now, we need to reduce the radical by using the rule shown below:

$\sqrt{x*y}=\sqrt{x} \sqrt{y}$

Now,

$\sqrt{54}=\sqrt{6*9} =\sqrt{6} \sqrt{9} =3\sqrt{6}$

The correct answer is $3\sqrt{6}$ and $-3\sqrt{6}$

<u>Note:</u> squaring positive and negative makes the same answer

4 0

3 years ago

Simplify the expression and write your answer in<br> scientific notation: (1.9 X 105)3

Alexandra [31]

(1.9 x 10^5)^3 = 1.9^3 x 10^15 = 6.859 x 10^15

4 0

3 years ago

Write an equation you could use for this word problem. Do not need to solve.

blondinia [14]

Answer:

23 + x = 40

Step-by-step explanation:

Hi,

23 is the total amount your friend has. 23 + the total amount you have is equal to 40. Since we don't know how much you have, we can write x. Therefore, 23 + x = 40 would be correct.

Hope this helps :)

7 0

2 years ago

Read 2 more answers

To find the product of x4 and 6 do you

zhannawk [14.2K]

Step-by-step explanation:

to find the product of 4 and 6

we multiply 4 and 6

i.e,4×6

=24

8 0

3 years ago

in an examination 60% exam in failed in maths 55% failed in English and 25 failed in both subjects if none of the exam in past i

masha68 [24]

Answer:

60% x 25

55 % x 25

10 in english

25 is total and rest will be math

so 25-10 = 15

15 students failed math

4 0

3 years ago