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siniylev [52]
3 years ago
14

A 31-foot support wire is attached from the top of a 25 foot telephone pole to a point on the ground. How far from the base pole

dose the wire meet the ground?
Mathematics
1 answer:
zlopas [31]3 years ago
3 0

Answer:

18.3

Step-by-step explanation:

approx. 18.3ft is the answer

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A ball is shot into the air using a brand new super-high-tech robotic arm to help baseball players practice catch fly balls.
stepladder [879]

Answer:

69 feet

Step-by-step explanation:

we have

h(t)=-16t^{2}+64t+5

where

h(t) is the height of the ball

t is the time in seconds

we know that the given equation is a vertical parabola open downward

The vertex is the maximum

so

the y-coordinate of the vertex represent the maximum height of the ball

Convert the quadratic equation into vertex form

The equation in vertex form is equal to

y=(x-h)^{2}+k

where

(h,k) is the vertex of the parabola

h(t)=-16t^{2}+64t+5

h(t)-5=-16t^{2}+64t

h(t)-5=-16(t^{2}-4t)

h(t)-5-64=-16(t^{2}-4t+4)

h(t)-69=-16(t^{2}-4t+4)

h(t)-69=-16(t-2)^{2}

h(t)=-16(t-2)^{2}+69

the vertex is the point (2,69)

therefore

The maximum height is 69 ft

6 0
3 years ago
8x - 60 less than or equal to 2 (5 - 3x)
MrRa [10]

Answer:

x less than or equal to 5

i think thats what u wanted

3 0
2 years ago
Is a triangle with sides of length 6ft, 21 ft, 23 ft. A right triangle?
gayaneshka [121]

Answer:

No

Step-by-step explanation:

By using the Pythagoras theorem, it can be easily determined that whether the triangle is right triangle or not.

Thus, a^{2}+b^{2}=c^{2} where where a and b are the legs and c is the hypotenuse.

Let a=6ft, b=21ft and c=23ft, then

a^{2}+b^{2}=c^{2}

(6)^{2}+(21)^{2}=(23)^{2}

36+441=(23)^{2}

477=529

which is not possible, therefore the given triangle is not right triangle because it does not satisfy the Pythagoras theorem.


7 0
3 years ago
36 is what percent of 90 show work
hodyreva [135]

Answer: 36 is 4% of 90

Step-by-step explanation: create a fraction of 36/90 then divide both numbers by 18.

4 0
2 years ago
Which does not represent a way to show 5+5+5+5+5 with multiplication?
Marizza181 [45]

Answer:

probably square root of 5

5 0
3 years ago
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