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ella [17]
3 years ago
7

A portion of the quadratic formula proof is shown. fill in the missing reason.

Mathematics
1 answer:
Lilit [14]3 years ago
3 0

9514 1404 393

Answer:

  D- add the fractions together on the right side of the equation

Step-by-step explanation:

In the previous step, the fractions are written with a common denominator. In the last step, the two fractions are combined (added together).

The best description of those provided is ...

  D- add the fractions together on the right side of the equation

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If f(x)=6(x-2), find f(5)
Ne4ueva [31]

Answer:

f(5) = 6(5 - 2) = 6(3) = 18

Step-by-step explanation:

You're asked to "evaluate" f(x)=6(x-2) when x = 5.

To do this, replace both instances of x with 5:  f(5) = 6(5 - 2) = 6(3) = 18

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3 years ago
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PilotLPTM [1.2K]

Answer:

8pi

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aleksley [76]

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Step-by-step explanation:

all the numbers together equal 72 marbles in total.

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3 years ago
Solve the equation 16=9+x
vitfil [10]

Answer:

x = 7

Step-by-step explanation:

9 get subtracted on both sides and then 16-9 is 7

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we said that the ratio of girls to boys in the class was 2:9. if there were 90 boys in the 9th grade, how many girls are there
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Answer:

20

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If the ratio of boys is 9 there are 90 boys. If 9=90 then 1= 10. 10 x 2 = 20

I hope this helps :0)

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