Evaluate - x2 + y2 where x= -1 and y=3

1 answer:

o-na [289]3 years ago

3 0

Answer:

Step-by-step explanation:

$-(-1)^2+(3)^2=-1+9\\=8$

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AlladinOne [14]

Answer:

no,it isnt,

Step-by-step explanation:

pythagoras property of right angle:

height sq + base square = hypotenuse sq

5*2+12*2=14*2

25+144=196 which is wrong

5 0

3 years ago

Y_Kistochka [10]

The answer...... is 6x+2

6 0

4 years ago

siniylev [52]

20 = 5 / 9(F-32)
f = 68

8 0

3 years ago

DENIUS [597]

10 x

15 100

15x=1000

x= 66.6666

ANSWER IS 14

8 0

3 years ago

Rina8888 [55]

Answer: 2.5, 5.4

Step-by-step explanation:

$-16t^2 +126t=213\\\\16t^2 -126t+213=0\\\\t =\frac{-(-126) \pm \sqrt{(-126)^2 -4(16)(213)}}{2(16)}\\\\t \approx 2.5, 5.4$

8 0

2 years ago