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snow_tiger [21]
3 years ago
12

The solution of m^2 -14m +49=0 is

Mathematics
1 answer:
vichka [17]3 years ago
5 0

Answer:

Step-by-step explanation:

THRU THE AC METHOD WE CAN SEE THAT -7*-7 IS= 49

AND -7+(-7)=-14

SO FACTORED WE HAVE

(X-7)(X-7)

OR (X-7)^2

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Mariana [72]

Answer:

At the given rate, Mr. Hickman's cherry tree would grow 16 inches in 1 year.

Step-by-step explanation:

I assume the actual question is:

<em>"Mr. Hickman` s cherry tree grew 12 inches in 3/4 of a year. How much would it grow in one year ?"</em>

As stated,

In 3/4 of a year, Mr. Hickman's cherry tree grew = 12 inches

Therefore,

In 1 year, Mr. Hickman's cherry tree would grow = \frac{1}{\frac{3}{4} }*12 inches

= 4/3 * 12 inches

= 16 inches

Hence, at the given rate, Mr. Hickman's cherry tree would grow 16 inches in 1 year.

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3 years ago
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If P(A or B) = 0.8, P(A) = 0.3, and P(A and B)= 0.15, find P(B).
Dennis_Churaev [7]

9514 1404 393

Answer:

  P(B) = 0.65

Step-by-step explanation:

The appropriate formula is ...

  P(A or B) = P(A) +P(B) -P(A and B)

Then P(B) is ...

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3 years ago
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