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Digiron [165]
3 years ago
11

A line has a slope of 11 and passes through the point (5,7). Which of these is an equation for the line? O A. y-7 = -11(x - 5) B

. y + 7 = 11(x + 5) O C. y-5 = -11(x - 7) O D. y - 7 = 11(x - 5) SUBMIT​
Mathematics
1 answer:
pshichka [43]3 years ago
6 0

Answer:

D. y - 7 = 11(x - 5)

Step-by-step explanation:

Use point slope form, y - y1 = m(x - x1), where m is the slope and (x1, y1) is a point on the line.

Plug in the given slope and point:

y - y1 = m(x - x1)

y - 7 = 11(x - 5)

So, the correct answer is D. y - 7 = 11(x - 5)

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Consider a civilization broadcasting a signal with a power of 2.0×104 watts. The Arecibo radio telescope, which is about 300 met
Vitek1552 [10]

For light: Inverse Square Law 

<span>
The signal is weaken by the inverse square of the difference of distances this means that one over the square of the difference. </span>

<span>
</span>

Therefore, 70000LY / 141 LY =496.45 and that squared =246462.602 times less signal, or 1/246462.602.


 2 For a circular telescope like the Arecibo radio telescope that equals Pi times the radius squared. Sensitivity of the telescope depends on its area.<span>
The new telescope needs 246462.60 times that area to have enough sensitivity </span>

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<span>(150 x 150 x Pi) = 70 685 sq m area for the Arecibo telescope and that times 246462.60
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What is the diameter of a circle with that area?

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7 0
3 years ago
Mai is visiting Paris to see the Eiffel Tower. She is 80 feet away
Jlenok [28]

Answer: height of the tower is 1064 feet

Step-by-step explanation:

We want to determine the height of the tower.

Assuming her line of sight of the top of the tower is a straight line, then a right angle triangle is formed. The height, h of the tower represents the opposite side of the triangle. Her distance from the foot of the tower represents the adjacent side of the triangle.

To determine h, we would apply the tangent trigonometric ratio which is expressed as

Tan θ = opposite side/adjacent side

Therefore,

Tan 85.7 = h/80

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7 0
3 years ago
Read 2 more answers
The temperature in Celsius would be,
elena-14-01-66 [18.8K]

First derisive the equation for C

\\ \sf\longmapsto F=\dfrac{9}{5}C+32

\\ \sf\longmapsto C+32=\dfrac{5}{9}F

\\ \sf\longmapsto C=\dfrac{5}{9}F-32

  • F=101F

\\ \sf\longmapsto C=\dfrac{5}{9}101-32

\\ \sf\longmapsto C=\dfrac{505}{9}-32

\\ \sf\longmapsto C=56.1-32

\\ \sf\longmapsto C=24.1°C

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3 years ago
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Answer:

Well first of all, one of the numbers is bigger than the other (has greater value).

<u>Let me know what else you want to know on this question. Hope this could help!</u>

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3 years ago
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