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enot [183]
2 years ago
6

Nigel and Mia are searching for a treasure chest under water. The straight line distance between them is 100 meters.

Mathematics
2 answers:
andrew11 [14]2 years ago
4 0

Answer:

Mia is closer because her distance to the chest is opposite the smaller angle.

Step-by-step explanation:

on edg

Mariulka [41]2 years ago
3 0

Answer:

I'm pretty sure its B.

Step-by-step explanation:

lame couldn't just answer smh

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A hovercraft takes off from a platform. Its height (in meters), xxx seconds after takeoff, is modeled by: h(x)=-2x^2+20x+48h(x)=
Ad libitum [116K]

the maximum height is the y-value of the vertex.

h(x) = -2x² + 20x + 48

      <em>  a=-2, b=20, c=48</em>

x = \frac{-b}{2a} = \frac{-20}{2(-2)} = \frac{-20}{-4} = 5

h(5) = -2(5)² + 20(5) + 48

      =  -50   +  100   + 48

      =          50         + 48

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Answer: 98 meters

8 0
3 years ago
can someone explain it to me, i don't need the answer, i just need an detailed explanation of how they got the answer using the
zubka84 [21]

Answer:

Step-by-step explanation:

Good idea to review quadratic functions and the quadratic formula.

Quadratics have three coefficients:  ax² + bx + c, and the "discriminant" is defined as b²-4ac.  Please review these rules:

1) if the discriminant is +, the quadratic equation has two real, unequal roots.

2) if the disc. is 0, the equation has two real, equal root.

3) If the disc. is - , the equation has two complex roots.

Here a = 1, b  = -3 and c = 4.  Therefore the discriminant is (-3)²-4(1)(4), or

-7.  Rule 3) applies:  the equation has two complex roots, but no real ones.  Thus we know that the graph does not cross the x-axis.

Graphing the given quadratic, x² - 3x + 4, using a dashed "line," is helpful.  As you can see in the illustration of this graph, the graph neither touches nor crosses the x-axis.  Thus, y = x² - 3x + 4 is greater than 0 for all x.  The answer:  All real numbers.

4 0
3 years ago
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Step-by-step explanation:

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2 years ago
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please mark me as brainlest

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3 years ago
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mars1129 [50]

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round

Step-by-step explanation:

hope I helped

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2 years ago
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