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polet [3.4K]
2 years ago
6

Which expression is equivalent to 7 3/4 - 1/2 Choose one answer A: 1/2 + 7 3/4 B: 7 3/4 + (-1/2) C: 1/2 + (-7 3/4) D: -7 3/4 + (

-1/2)
Mathematics
2 answers:
Katen [24]2 years ago
8 0

Answer:

D

Step-by-step explanation:

Right in edge2020

umka21 [38]2 years ago
4 0

Answer:

D

Step-by-step explanation:

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Esteban has a big jar of change in his room. He has 600 coins total, and 240
elixir [45]
  You can set up a proportion to solve for the percentage of the coins that are pennies. Of course, there are alternate methods as well, but this is one method. First, you define the percentage of the coins that are pennies to be equal to a variable, such as x. Next, you write 240/600 = x/100, due to how "x" is the amount out of 100 (since per cent is for every cent (out of 100)), and 240 would correspond to x while 600 would correspond to 100. This proportion may also be written as 100/x = 600/240, or 240/x = 600/100. In order to solve for x, you use cross-products, or you multiply each denominator by the numerator of the other fraction. You will be left with a numerical value that's equal to a number times x, and then you divide both sides of the equation by the coefficient of x in order to isolate x. As a result, you will have the percentage of the coins that are pennies to be your answer. Remember to write the units for every numerator and denominator in your proportion.
8 0
2 years ago
Read 2 more answers
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zimovet [89]
Step by Step:

(z^2 -2z)(10z-20)

z(z-2)+10(z-2)

(z+10)(z-2)

Hope this helps.
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(3,0) is a point on the ellipse
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Foci (focus points) of an ellipse Two points inside an ellipse that are used in its formal definition. See Ellipse definition. Try this Drag any orange dot. As you reshape the ellipse, note how the two focus points (F1 and F2) move. <span> </span>

An ellipse has two focus points. The word foci (pronounced 'foe-sigh') is the plural of 'focus'. One focus, two foci.

The foci always lie on the major (longest) axis, spaced equally each side of the center. If the major axis and minor axis are the same length, the figure is a circle and both foci are at the center. Reshape the ellipse above and try to create this situation.

Note how the major axis is always the longest one, so if you make the ellipse narrow, it will be the vertical axis instead of the horizontal one.


6 0
3 years ago
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