3 years ago

3 power 1+x + 3 power 1-x = 9

Mathematics

1 answer:

Rus_ich [418]3 years ago

6 0

I have no clue I just need to answer some questions before I can ask my own again lol

You might be interested in

A weight hangs from a spring attached to a ceiling, and the weight moves up and down. The table shows the distance in centimeter

sasho [114]

It seemed like it should have been so simple. There was nothing inherently difficult with getting the project done. It was simple and straightforward enough that even a child should have been able to complete it on time, but that wasn't the case. The deadline had arrived and the project remained unfinished.

7 0

2 years ago

Read 2 more answers

John has 367 stamps And his uncle gave him some more stamps now he have 462 stamps how many stamps did he get from his uncle

Ulleksa [173]

Answer:

The answer is 829 because you are adding

Step-by-step explanation:

7 0

3 years ago

Which three lengths could be the lengths of a triangle?

attashe74 [19]

Answer: number one is d and number 3 is c I think

Step-by-step explanation:

8 0

2 years ago

A is a 4x4 matrix and A^2 + 4A - 5I = 0. If det(A+2I)>0, enter det(A+2I)

maw [93]

$\mathbf A^2+4\mathbf A-5\mathbf I=0$
$\implies\mathbf A^2+4\mathbf A+4\mathbf I=(\mathbf A+2\mathbf I)^2=9\mathbf I$
$\implies\det\bigg((\mathbf A+2\mathbf I)^2\bigg)=\det(9\mathbf I)$
$\implies\det(\mathbf A+2\mathbf I)^2=9^4\det\mathbf I$
$\implies\det(\mathbf A+2\mathbf I)=\pm\sqrt{9^4}$
$\implies\det(\mathbf A+2\mathbf I)=9^2=81$

where we take the positive root because we're told that the determinant is positive.

5 0

2 years ago

A farmer bought a tractor for Rs 400000 and sold it

allochka39001 [22]

Step-by-step explanation:

A farmer bought a tractor for Rs400000 and sold it after using some time at 10% depreciation rate for per year what is the cost.....

3 0

2 years ago