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julia-pushkina [17]
3 years ago
12

Pls help quadratic equations

Mathematics
1 answer:
umka21 [38]3 years ago
3 0

Answer:

n = 5

Step-by-step explanation:

3 x (n+1)² = n² + (n+2)² + 34

3n² + 6n + 3 = n² + n² + 4n + 4 + 34

n² + 2n - 35 = 0

(n - 5) (n + 7) = 0

n is a positive number

n = 5

check: 5, 6, 7

6 x 6 x3 = 108

(5 x 5) + (7 x 7) + 34 = 25 + 49 + 34 = 108

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What is the reflection in the x-axis & what’s the reflection in line y=x?
marishachu [46]

Answer:

  a) (3, -4), (2, 4), (-5, -6)

  b) (4, 3), (-4, 2), (6, -5)

Step-by-step explanation:

a) Reflection in the x-axis negates the y-coordinate:

  (x, y) ⇒ (x, -y)

  (3, 4) ⇒ (3, -4)

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b) Reflection in the line y=x swaps the x- and y-coordinates:

  (x, y) ⇒ (y, x)

  (3, 4) ⇒ (4, 3)

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  (-5, 6) ⇒ (6, -5)

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4 years ago
A round silo is 55 feet tall and has a 24 foot radius. How high would a load of 38000 cubic feet of grain fill the silo?
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h = 21.01

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Answer:

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Step-by-step explanation:

I've graphed this on desmos for a visual

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