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malfutka [58]
3 years ago
5

A reflecting telescope contains a mirror shaped like a parabola of revolution. If the mirror is 16 inches across at its opening

and is 2 feet deep, where will the light be concentrated?
Mathematics
1 answer:
choli [55]3 years ago
5 0

Answer:

18

Step-by-step explanation:

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Please be quick! I need this as soon as possible!
PolarNik [594]

Answer:

35

Step-by-step explanation:

40*3=120

120-85=35

5 0
3 years ago
Fill in the steps to solve the log log base x of (2x)^3=6​
arsen [322]

Answer:

x=2

Step-by-step explanation:

logx (2x)^3 = 6

We can rewrite without the exponent

3 logx (2x) = 6

Divide by 3

3/3 logx (2x) = 6/3

logx (2x) = 2

Raise each side to the base x

x^ logx (2x) =x^ 2

2x = x^2

Subtract 2x from each side

2x-2x = x^2 -2x

0 = x^2 -2x

Factor an x

0 = x(x-2)

Using the zero product property

x =0 x-2 =0

x =0  x=2

We cannot have a base of 0, so x cannot equal 0

x=2

6 0
3 years ago
Today 67 students are going on a
Fudgin [204]

I know this is a little weird but the answer is <u>1.34</u> buses.

You need to divide 67 by 50.

Hope I helped and good luck!

4 0
3 years ago
Read 2 more answers
the train traveled at an average speed of 48 miles per hour for the first 2 hours and at 60 miles an hour for the next hours. Wh
Aleksandr [31]

Answer:  56 mph

Step-by-step explanation:

48 miles x 2 hours = 96 miles

60 miles x 4 hours =  240 miles

240 + 96 = 360 total miles

360 / 6 (hours) = 56 mph

6 0
3 years ago
Please help again! Please
Troyanec [42]
1 glass of juice cost $3

1 glass of limonade costs $2


So the proportion between them (Orange) / (juice) = 3/2 or 3¹/₂
6 0
3 years ago
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