Answer:
what does this mean you just put random numbers right?
Step-by-step explanation:
It is 6 feet. I hope this helps a little.
The magnification is 0.54
Given,
The distance between object and concave lens, u = -21 cm
Focal length of the concave lens, f = -25 cm
Let m be the magnification.
m = v/u
Here v is the position of image.
We have to find v first.
By using lens equation we can determine v.
That is,
1/f = 1/v – 1/u
So,
- (1/25) = 1/v – (-1/21)
- (1/25) = 1/v + 1/21
1/v = - (1/25) – 1/21
1/v = (-25 – 21) / (21 x 25)
1/v = - (46/525)
Therefore v = - (525/46)
v = -11.41 cm
Now we have to find magnification, m.
m = v/u
= (-11.41) / (-21)
= 0.54
Here magnification is 0.54
Learn more about concave lens here: brainly.com/question/12944945
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Since a pentagonal based prism is sliced horizontally by a
plane parallel to the base. So the figure must be similar to the base of the
prism because it was sliced parallel to base. Since it is a pentagonal based
prism, then the cross section is also pentagon in shape
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Answer:
Part 1) The scale factor is 3
Part 2) The value of x is 36 in
Part 3) The value of y is 26 in
Step-by-step explanation:
step 1
Find the scale factor
we know that
If two figures are similar then the ratio of its corresponding sides is proportional and this ratio is called the scale factor
so
In this problem
Let
z-----> the scale factor
step 2
Find the value of x
To find the value of x, multiply the length of 12 by the scale factor
so
step 3
Find the value of y
we know that
