So half of Nina's age is 10/2= 5. And since Greg is three years younger we subtract from 5 like so...
10/2=5
5-3
2
So Greg is 2 years old. I hope this helps love! :)

5 0

3 years ago

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Select the two values of x that are roots of this equation.<br> x2 - 5x + 2 = 0

Margaret [11]

Answer:

C and D

${x}^{2} - 5x + 2 = 0 \\ x = \frac{5± \sqrt{17} }{2}$

8 0

3 years ago

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Can you explain it and help me out please

Anarel [89]

Answer:

Step-by-step explanation:

2x² - 4x - 3 = 0

$x= \frac{-b+/-\sqrt{b^{2}-4ac} }{2a} \\\\x= \frac{-(-4)+/-\sqrt{(-4)^{2}-4*2*(-3)} }{2*2} \\\\x= \frac{4+/-\sqrt{16+24} }{4} \\\\x= \frac{4+/-\sqrt{40} }{4} = \frac{4+/-2\sqrt{10} }{4}=\frac{2+/-\sqrt{10} }{2}$

6 0

3 years ago

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What is the volume of the cone?

mr_godi [17]

1/3 (3.14) (2*2) (4)

8 0

4 years ago