What are the solutions to the following system? startlayout enlarged left-brace 1st row negative 2 x squared + y = negative 5 2nd row y = negative 3 x squared + 5 endlayout (0, 2) (1, –2) (startroot 2 endroot, negative 1) and (negative startroot 2 endroot, negative 1) (startroot 5 endroot, negative 10) and (negative startroot 5 endroot, negative 10)

(StartRoot 2 EndRoot, negative 1) and (negative StartRoot 2 EndRoot, negative 1)

Step-by-step explanation:

we have

----> equation A

-----> equation B

solve by substitution

substitute equation B in equation A

solve for x

Find the value of y

For ---->

For ---->

therefore

The solutions are

(StartRoot 2 EndRoot, negative 1) and (negative StartRoot 2 EndRoot, negative 1)

i need a picture

step-by-step explanation:

percentage - 25%

probability - 0.25

we know,

total amount of students in class = 20

total boys = 10

total girls = 10

no of girls who wear glasses = 10/2 = 5

probability of choosing a girl with glasses is =

number of girls wearing glasses/total number of students in the class = 5/20

thus, percentage of selecting a girl wearing glasses will be

= 5/20 × 100

= 5 × 5

25%

therefore,

probability will be 0.25

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