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Artemon [7]
3 years ago
8

Please help me pass this class​

Mathematics
1 answer:
stiv31 [10]3 years ago
3 0

Answer:

b

Step-by-step explanation:

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12. The Appalachian Trail is about 2,175 miles long.
spayn [35]
a. (2175 mi)/(18 mi/day) = 120.83... day ≈ 121 days

b.
120.83.../4 = 30.2083...
   Joelle will hike 30 full days and one partial day.
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Recall the equation that modeled the volume of the raised flower bed, y, in terms of the width of the box, y = x3 + 11x2 − 312x.
lakkis [162]

Answer:

48 cubic feet of mulch

Step-by-step explanation:

12 feet long x 4 feet wide x 1 foot deep of mulch= 48 cubic feet of mulch

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3 years ago
Scott works on cars. He charges $35 for each car plus $7 per hour. The total bill was $63. The equation that matches this is 35x
GuDViN [60]
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3 years ago
What is the value for x?
Nataly [62]
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8 0
2 years ago
The equation x2 - 12x - 60 = -y2 - 4y describes a circle in the coordinate plane. find the radius of the circle and the coordina
34kurt

Answer:

r = 10 , centre = (6, - 2 )

Step-by-step explanation:

the equation of a circle in standard form is

(x - h)² + (y - k)² = r²

where (h, k ) are the coordinates of the centre and r is the radius

given

x² - 12x - 60 = - y² - 4y ( add y² + 4y to both sides )

x² - 12x + y² + 4y - 60 = 0 ( add 60 to both sides )

x² - 12x + y² + 4y = 60

using the method of completing the square

add ( half the coefficient of the x and y terms )² to both sides

x² + 2(- 6)x + 36 + y² + 2(2)y + 4 = 60 + 36 + 4

(x - 6)² + (y + 2)² = 100 ← in standard form

with centre = (6, - 2 ) and r = \sqrt{100} = 10

8 0
1 year ago
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