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3 years ago

Show how to move the parentheses in the expression 2+(3+4)9 so that the value of the expression is 9

Mathematics

1 answer:

Ivan3 years ago

5 0

I think this question is impossible because they all do not equal 9

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Which type of function best models the data shown on the scatterplot?

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Due to the u-shaped graph suggested by these data points, this would best be matched with a quadratic function.

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4 years ago

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Four circles, each with a radius of 2 inches, are removed from a square.

natka813 [3]

Given:

Given that the radius of the circle is 2 inches.

We need to determine the area of the remaining square.

Area of a square:

Given that each circle has a radius of 2 inches.

Then, the diameter of each circle is 4 inches.

Hence, the side length of the square is 2 × 4 = 8 inches.

The area of the square is given by

$A=s^2$

$A=8^2$

$A=64$ $in^2$

Thus, the area of the square is 64 square inches.

Area of the four circles:

The area of one circle is given by

$A=\pi r^2$

Substituting r = 2, we have;

$A=4\pi$

Thus, the area of one circle is 4π in²

The area of 4 circles is 4 × 4π =16π in²

Hence, the area of the 4 circles is 16π in²

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The area of the remaining square is given by

Area = Area of the square - Area of four circles.

Substituting the values, we get;

$Area=64-16\pi$

Thus, the area of the remaining square is (64 - 16π) in²

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2 years ago

Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the corre

GaryK [48]

Explanation
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3 years ago

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Answer:

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h) What is the probability that at least 80 of them grow into a healthy plant? Round final answer to 4 decimal places.

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3 years ago

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Triss [41]

Use Mathpapa or symbolab, they are both very useful resources, and have saved me many times

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