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azamat
2 years ago
5

Need help with a math problem If doing 5 stars and a good rating

Mathematics
1 answer:
goblinko [34]2 years ago
3 0

Answer:

16:1

Step-by-step explanation:

Since there are 85 total people and 80 are students that means 5 are chaperones.(85-5) Therefore the ratio of students to chaperones is 80:5 or simplified 16:1.

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3 years ago
Determine the measure of ∠DBC. answers: 1) 130° 2) 115° 3) 230° 4) 65°
Norma-Jean [14]

Answer:

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Step-by-step explanation:

65 degrees

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3 years ago
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A rugby team played six games.
Schach [20]

Step-by-step explanation:

mean score means the sum of all 6 scores divided by the number of games : 6.

sum6/6 = 15

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2 years ago
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m_a_m_a [10]
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3 0
3 years ago
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Rewrite f(x) into vertex form by completing the square f(x)=−x2+8x+9​
GalinKa [24]

Answer:

vertex  = ( 4  ,  25 )

Step-by-step explanation:

given a parabola in  standard form  y =  a x 2 + b x + c x ; a ≠ 0

then the x-coordinate of the vertex is

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substitute the value on the equation

Y vertex = -(4)squared+8(4)+9=25

3 0
2 years ago
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