Ask question

Ask question

All categories

Bad White [126]

3 years ago

15

If x= 3-2^2 then find the value of x^2+1÷x^2

1 answer:

Lady bird [3.3K]3 years ago

8 0

X = 3-2^2

Simplify x:

3-4 = -1

X = -1

Replace x in the equation and solve:

(-1) ^2 + 1 /(-1)^2

(-1)^2 = 1

Simplify to get 1 + 1/1 = 1+ 1 = 2

The answer = 2

You might be interested in

you won 1 million dollars in prize money, however they are not giving it to you all at once. so is your money trult the value of

Mandarinka [93]

I guess it’s going to be 1million + 2miilion )

8 0

2 years ago

Factor the square root of 625

docker41 [41]

The square root of six hundred and twenty-five √625 = 25
is this what you asked

3 0

3 years ago

Is it 1/10, 10, 7 or 5/72 please help thank you?

Svetradugi [14.3K]

1/10 because I said so

8 0

3 years ago

(50 POINTS) What is the length of YZ in Triangle XYZ? Explain two different methods that could be used to find this length.

LenKa [72]

<h3>First Method:</h3>

<u>Using cosine rule</u>:

$\rightarrow \sf cos(30 ) = \dfrac{YZ}{12}$

$\rightarrow \sf YZ = 12cos(30 )$

$\rightarrow \sf YZ = 6\sqrt{3}$

$\rightarrow \sf YZ = 10.4$

<h3>Second Method:</h3>

<u>First find XY using sine rule</u>:

$\rightarrow \sf sin(30)=\dfrac{XY}{12}$

$\rightarrow \sf XY = 12sin(30)$

$\rightarrow \sf XY =6$

Then use Pythagoras Theorem:

⇒ XY² + YZ² = XZ²

⇒ (6)² + YZ² = 12²

⇒ YZ² = 144 - 36

⇒ YZ = √108

⇒ YZ = 6√3

⇒ YZ = 10.4

4 0

2 years ago

8r=16 PLS HELP IM IN 7TH HELP PLS PLS

Nataliya [291]

Answer: r=2

Step-by-step explanation: 8•2=16

5 0

3 years ago