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Alja [10]
3 years ago
5

Which ray is opposite of cd

Mathematics
1 answer:
SCORPION-xisa [38]3 years ago
8 0

Answer:

Step-by-step explanation:

Ray CD and ray CG are the opposite rays.

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An irrigation system (sprinkler) has a parabolic pattern. The height, in feet, of the spray of water is given by the equation h(
jasenka [17]

9514 1404 393

Answer:

  • 7.5 ft
  • 32.5 ft, 5 ft
  • 10.7 ft

Step-by-step explanation:

a) The starting height is h(0) = 7.5 feet, the constant in the quadratic function.

The irrigation system is positioned <u> 7.5 </u> feet above the ground

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b) The axis of symmetry for quadratic ax^2 +bx +c is x = -b/(2a). For this quadratic, that is x=-10/(2(-1)) = 5. This is the horizontal distance to the point of maximum height. The maximum height is ...

  h(5) = (-5 +10)(5) +7.5 = 32.5 . . . feet

The spray reaches a maximum height of <u> 32.5 </u> feet at a horizontal distance of <u> 5 </u> feet from the sprinkler head.

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c) The maximum distance will be √32.5 + 5 ≈ 10.7 ft.

The spray reaches the ground at about <u> 10.7 </u> feet away.

3 0
2 years ago
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Write an absolute value for all real numbers at least 3 units from -2
guajiro [1.7K]
<span>{<span>xi</span>,...}</span><span>|3|≥x</span>something like this
6 0
3 years ago
Write the equation in slope intercept form of the line passing through the following points (0,5) and (-5, -1).
krek1111 [17]

Answer:

y = 6/5x

Step-by-step explanation:

1. y = \frac{-1-5 }{-5-0}

2. subtract the two number on the top of the fraction bar to get 6

3. do the same for the denominator to get 5

4. your final answer is \frac{6}{5}

7 0
3 years ago
Jayne is making a patchwork quilt. She is following a pattern for a triangular section but only knows the measurements shown. Wh
Novosadov [1.4K]

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Step-by-step explanation:

4 0
3 years ago
How do you solve the equation 2cos^2 - cosx = 0 for all solutions?
exis [7]

Answer:

<em>π/2 and π/3</em>

Step-by-step explanation:

Given the equation 2cos²x - cosx = 0, to find the solution to the equation, we will follow the following step.

let P = cosx

The equation becomes 2P²-P = 0

P(2P-1) = 0

P = 0 and 2P-1 = 0

P= 0 and P = 1/2

Since P = cosx

cosx = 0 and cos(x) =  1/2

If cos(x) = 0

x = cos⁻¹0

x = 90⁰

x = π/2

If cos(x) = 1/2

x = cos⁻¹1/2

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x = π/3

<em>Hence the solutions to the equation are π/2 and π/3.</em>

7 0
3 years ago
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