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Firdavs [7]
3 years ago
12

How can you use a flashlight to make conic sections?

Mathematics
2 answers:
givi [52]3 years ago
5 0
If you hold it to an angle to a planar surface you will create ellipses....
Aleksandr [31]3 years ago
5 0

Answer:

Start with the flashlight parallel to the wall. If you incline it slightly away from the wall, the (conical) beam will still hit the wall and you'll get a hyperbola. It is only after the angle of the flashlight to the wall is greater than the angle of the light cone that the hyperbola vanishes at infinity.

Step-by-step explanation:

google

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The dimensions of a rectangle can be given by x+9 and x-2. If the area is 60ft^2, what is the value of X?
Veronika [31]

Answer:

6

Step-by-step explanation:

(x + 9) * (x - 2) = 60

x^2 - 2x + 9x - 18 = 60

x^2 + 7x - 18 = 60

x^2 + 7x = 78

FACTORING:

x(x + 7) = 78

x = 6

6 0
3 years ago
The least common denominator of two fractions is 28. If you substract the two deniminators, their difference is 10. What are the
DanielleElmas [232]
The denominators are 14 and 4.
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Some people advise that in very cold​ weather, you should keep the gas tank in your car more than half full. Lou​'s car had 6.8
tamaranim1 [39]

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3 0
4 years ago
If x = ‐3, evaluate x + 7
ziro4ka [17]

Answer:

4

Step-by-step explanation:

Substitute -3 for x.

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7 0
3 years ago
angelo rode his bike around a bike trail that was 1/4 of a mile long.he rode his bike around thetrail 8 times.Angelo says he rod
forsale [732]
Hi there!

From this problem we can pull out some key information and remove any excess.

- The trail is 1/4 of a mile long.
- Angelo rode around the trail 8 times.
- Angelo claims he rode 8/4 miles.
- Teresa claims he rode 2 miles.

From that we know that if Angelo rode around the trail 8 times and the trail is 1/4 a mile, he in total rode 8/4 of a mile.

However, Teresa claims he rode 2 miles!

And the answer is... they're both correct!

Angelo did indeed ride 8/4 miles however that is equivalent to 2 miles so they are both in the right.
7 0
4 years ago
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