2 years ago

If 2 inches are equivalent to 5 centimeters, how many square centimeters are in one square inch

Mathematics

1 answer:

Sonja [21]2 years ago

6 0

Answer:

there are 6.45 or 6.5 square cm in one square inch

Step-by-step explanation:

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[Quick Answer Needed] Which of the following shows the extraneous solution to the logarithmic equation?

Nitella [24]

Answer:

Step-by-step explanation:

Given the logarithmic equation

$\log_4x+\log_4(x-3)=\log_4(-7x+21)$

First, notice that

$x>0\\ \\x-3>0\Rightarrow x>3\\ \\-7x+21>0\Rightarrow 7x$

So, there is no possible solutions, all possible solutions will be extraneous.

Solve the equation:

$\log_4x+\log_4(x-3)=\log_4x(x-3),$

then

$\log_4x(x-3)=\log_4(-7x+21)\\ \\x(x-3)=-7x+21\\ \\x^2-3x+7x-21=0\\ \\x^2+4x-21=0\\ \\D=4^2-4\cdot 1\cdot (-21)=16+84=100\\ \\x_{1,2}=\dfrac{-4\pm 10}{2}=-7,\ 3$

Hence, $x=3$ and $x=-7$ are extraneous solutions

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2 years ago

Xavier spent less than 2\5 of an hour walking home from school. Which fraction is less than 2\5? A5\7 B3\4 C5\10 D2\9

MAVERICK [17]

2/9 is less than 2/5 because since the denominator is larger, the pieces are smaller. (Numerator)

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2 years ago

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Joe went to the hobby shop and bought 2 sport cars at %8.95 each and some paints.If he spent a total of %23.65,What was the coas

sweet-ann [11.9K]

I'm assuming that % means $:

8.95*2 = 17.9

23.65 - 17.9 = 5.74

The cost of the paint was $5.74

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3 years ago

If 42 students were born in a state other than Texas, how many students does Mrs. Vy have in all her classes

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2 years ago

Mary went to the park with Amy at 2:30 pm. They played for 1 hour 30 min. At what time did the finish playing? Give your answer

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4:00 pm

Step-by-step explanation:

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3 years ago

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