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Margarita [4]
3 years ago
5

Solve it : x² *dy/dx = -2y

Mathematics
1 answer:
zhenek [66]3 years ago
5 0

Answer:

r= -sec(θ) x ∛2

θ=0

Step-by-step explanation:

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X = -7, have a good day !
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3 years ago
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You're going on a 1211-mile trip, and your car gets about 29 miles per gallon. Gas prices along your route average $3.40. Estima
Vilka [71]

Answer:

Using the estimate:

The car has to go for 1,200 miles but it consumes a gallon of gasoline for every 30 miles. The number of gallons it will need is therefore:

= 1,200 / 30

= 40 gallons

Each gallon costs $3.00 so the total cost is:

= 40 * 3

= $120

Without using the estimate:

The car has to go for 1,211 miles but it consumes a gallon of gasoline for every 29 miles. The number of gallons it will need is therefore:

= 1,211 / 29

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= 41.76 * 3.40

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3 0
3 years ago
7
natulia [17]

Answer:

diagonal = = 12.8 inches (to the nearest tenth of an inch)

Step-by-step explanation:

As shown in the diagram attached to this solution:

Let the Length of the rectangular board = a

Let the width = b

Let the diagonal = d

where:

a = 10 inches

b = 8 inches

d = ?

Triangle ABC in the diagram is a right-angled triangle, therefore, applying Pythagoras theorem:

(hypotenuse)² = (Adjacent)² + (Opposite)²

d² = 10² + 8²

d² = 100 + 64

d² = 164

∴ d = √(164)

d = 12.806 inches

d = 12.8 inches (to the nearest tenth of an inch)

<em>N:B Rounding off to the nearest tenth of an inch is the same as rounding off to 1 decimal place.</em>

3 0
3 years ago
Write the value of the numerator 374 as the product of prime factors
ycow [4]
The prime factors of 374 are 2,11and,17
8 0
3 years ago
2+2=4-1=3 2+4+4+5+6+1+8=
Vinvika [58]

Answer:

30

Step-by-step explanation:

8 0
3 years ago
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