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kherson [118]
3 years ago
9

Which part of the eye acts as a secondary area of refraction to "fine tune" the focus?

Mathematics
1 answer:
makkiz [27]3 years ago
3 0

Answer:

The lens

Step-by-step explanation:

The lens of the eye is a biconvex, transparent structure of the eye that helps in refraction along with the cornea.

Hope this helps!!

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25x + 4x = x + 3x +7
Musya8 [376]

For this equation its the same as simplifying any other equation -Simplify both sides of the equation then isolate the variable- Easy then once you've do so the answer should be

<u>x = \frac{7}{26\\}</u>

7 0
3 years ago
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What is the value of x in the equation? <br><br> 3<br> 2<br> 5<br> x + 2<br> 3<br> 4<br> = 7
schepotkina [342]

Answer:

1/65 is the answer. the main part behind it is using subtraction and divison to find the answer

3 0
4 years ago
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Points Y and Z are the same distance from point X on a number line. The coordinate of point X is –7 and the coordinate of point
Mars2501 [29]
Since you know that point Y and point Z are equal distance form point F, you will need to know the distance between point Y, -1, and the distance between point X, -7. So, the total distance, after subtracting -1 from -7, is -6.  So, you will then subtract another -6 from -7, to get -13, which is the coordinate of point Z.
5 0
3 years ago
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Can someone really help me on this ill give brainliest to the first answer
mojhsa [17]

Answer:

38/z

Step-by-step explanation:

Key skills: Fractions, Division, Variables

1) 38 is being divided by a variable known as z.

2) 38 being divided by z would be the same as <u><em>38/z</em></u>

Have a nice day! Hope you understood!

5 0
3 years ago
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Through (-1,4) and a perpendicular to 4y-2x=12
mart [117]

Answer:

<h2>y = -2x + 2 → 2x + y = 2</h2>

Step-by-step explanation:

\text{The slope-intercept form of an equation of a line:}\\\\y=mx+b\\\\m-\text{slope}\\b-\text{y-intercept}\\\\\text{Let}\\\\k:y=m_1x+b_1\\\\l:y=m_2x+b_2\\\\\text{then}\\\\k\ \perp\ l\iff m_1m_2=-1\to m_2=-\dfrac{1}{m_1}\\\\k\ ||\ l\iff m_1=m_2

\text{We have the equation of a line in the standard form:}\ Ax+By=C.\\\\\text{Convert to the slope-intercept form:}\\\\4y-2x=12\qquad\text{add}\ 2x\ \text{to the both sides}\\\\4y-2x+2x=2x+12\\\\4y=2x+12\qquad\text{divide both sides by 4}\\\\\dfrac{4y}{4}=\dfrac{2x}{4}+\dfrac{12}{4}\\\\y=\dfrac{1}{2}x+3\to\boxed{m_1=\dfrac{1}{2}}

\text{Therefore}\ m_2=-\dfrac{1}{\frac{1}{2}}=-2.\\\\\text{Put the value of the slope and the coordinates of the given point (-1, 4)}\\\text{to the equation of a line:}\\\\4=-2(-1)+b\\\\4=2+b\qquad\text{subtract 2 from the both sides}\\\\4-2=2-2+b\\\\2=b\to b=2\\\\\bold{FINALLY:}\ y=-2x+2

\text{Convert to the standard form:}\\\\y=-2x+2\qquad\text{add}\ 2x\ \text{to the both sides}\\\\y+2x=-2x+2x+2\\\\2x+y=2

4 0
4 years ago
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