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asambeis [7]
3 years ago
10

The ___________ of a lens or mirror is a rotational symmetry axis of the surfaces.

Mathematics
1 answer:
densk [106]3 years ago
5 0

Answer:

Optical axis

Step-by-step explanation:

Optical axis is the rotational symmetry axis of the surfaces.

A line with a certain degree of rotational symmetry is called as the optical axis in an optical system.

It is the straight line that passes through the geometric center of the lens and joins two curvature centers of its surfaces.

It is also called as the principal axis.

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Paul is running Tennis shop. He sells balls and rackets. Rackets (R) cost $1.20 each and Balls (B) cost $2:0 each. At the end of
Rus_ich [418]

The system of equations that represent the situation are 1.20R + 2B = 70, and R + B = 90.

<h3>What are the system of equations?</h3>

The system of equations are sets of equations that have to be solved simultaneously in order to determine their required values. They are often referred to as simultaneous equations.

To learn more about simultaneous equations, please check: brainly.com/question/25875552

8 0
2 years ago
if you travel to Jupiter, your weight would be 236.4% of your earth weight.How much would neil armstrong's space suit weigh on J
Margarita [4]
So,

This is simple multiplication once you've converted the percentage to a decimal.
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Neil Armstrong's space suit would weigh 425.52 lbs. on Jupiter.
4 0
3 years ago
What is 1 third more than 0?
Lelechka [254]
I believe the answer would still be 0 because 1/3 of 0 is 0
6 0
3 years ago
What is the percent decrease from 95 to 68 round to the nearest percent
Setler79 [48]

The decrease is  (95-68) = 27 .

As a fraction, the decrease is  27/95  of the original amount.

To change any fraction to a decimal, do the division:

                            (27)  divided by  (95) = 0.2842...

To change any decimal to a percentage, move the

decimal point two places that ==> way:

                            0.2842...  =  28.42... %Answer:

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
Please help. I’ll mark you as brainliest if correct!
OLEGan [10]

Answer:

x +0y+0z = 400

-x +y+0z = 150

-8x +0y +z = 250

Step-by-step explanation:

The last column is the solution

The rest of the columns are the coefficients of the variables

x +0y+0z = 400

-x +y+0z = 150

-8x +0y +z = 250

5 0
3 years ago
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