Write an equation for an ellipse centered at the origin, which has foci at (0,±14)(0,\pm\sqrt{14})(0,±14 )left parenthesis, 0, comma, plus minus, square root of, 14, end square root, right parenthesis and co-vertices at (±2,0)(\pm\sqrt{2},0)(±2 ,0)left parenthesis, plus minus, square root of, 2, end square root, comma, 0, right parenthesis.

answer is:

1.75 pounds

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

happy to

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answer: (c) m∠qpo + (2x + 16)° = 180°

step-by-step explanation:

the opposite angles of a quadrilateral are supplementary.

so, ∠o + ∠q = 180°   and   ∠p + ∠r = 180°

since ∠r = 2x + 16°, we can use substitution as follows:

∠p + ∠r = 180°

∠p + (2x + 16)° = 180°