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ehidna [41]
3 years ago
5

Please help with this thank you

Mathematics
1 answer:
atroni [7]3 years ago
6 0

Answer:

(4, - 2 )

Step-by-step explanation:

To find the x- coordinate substitute y = - 2 into the equation

y + 2 = - 3(x - 4), thus

- 2 + 2 = - 3x + 12

0 = - 3x + 12 ( subtract 12 from both sides )

- 12 = - 3x ( divide both sides by - 3)

4 = x

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A group of band instructors answered a survey about hours of rehearsal per week and number of competitions won. The graph shows
IRISSAK [1]

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This linear regression was constructed by relating the hours practiced per week and the number of competitions won.

Going by this graph, the number of competitions they can expect to win at 5 practices a week is 31.

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An isosceles triangle has two sides of equal length, a, and a base, b. The perimeter of the triangle is 15.7 inches, so the equa
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Answer:

b=0.5 in

b=2 in

Step-by-step explanation:

we know that

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Applying the Triangle Inequality Theorem

a+a > b

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<u>Verify each case</u>

case 1) b=-2 in

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case 2) b=0 in

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case 3) b=0.5 in

substitute the value of b in the equation A and solve for a

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substitute the values of b and  a in the inequality B

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2(7.25) > 0.5

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therefore

b=0.5 in  make sense for possible values of b

case 4) b=2 in

substitute the value of b in the equation A and solve for a

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substitute the values of b and  a in the inequality B

2a > b

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b=2 in  make sense for possible values of b

case 5) b=7.9 in

substitute the value of b in the equation A and solve for a

a=\frac{15-7.9}{2}=3.55\ in

substitute the values of b and  a in the inequality B

2a > b

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7.1 > 7.9 -----> is not true

therefore

b=7.9 in  not make sense for possible values of b

5 0
3 years ago
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45°
ioda

Answer:

   x = \sqrt{\frac{7}{2} }

Step-by-step explanation:

<u><em>Explanation</em></u>

From given graph

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7 0
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