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Dmitriy789 [7]
4 years ago
12

Select the correct answer.

Mathematics
2 answers:
Nitella [24]4 years ago
7 0

Answer:

D. The mean number of hours will increase.

Step-by-step explanation:

bagirrra123 [75]4 years ago
4 0

Answer: it is B

Step-by-step explanation:

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Which is greater in measurement and why?<br> 1 2/3 yards or 64 inches
Genrish500 [490]
1 yard= 3 feet
1 foot= 12 inches
Convert this problem into one like unit of measurement. Use the smallest one. In this case, inches. 
So, convert 1 2/3 yards to inches. 
1 2/3 = 5/3
5/3 * 3(feet) = 15/3 = 5
There are 5 feet in 1 2/3 yards.
Next, convert the five feet to inches. 
5 * 12 = 60
1 2/3 yards represents 60 inches. 
Since 64 is greater than 60, you can say that 64 inches is greater than 1 2/3 yards.
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3 years ago
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Answer:

Quadratic equation has equal roots

We know that quadratic equation has two equal roots only when the value of discriminant is equal to zero. We know that two roots of quadratic equation are equal only if discriminant is equal to zero.

Step-by-step explanation:

<u>144</u>

So, c must be 144 to make the trinomial a perfect square.

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