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2 years ago

If you change the sign of a point’s y-coordinate, how will the location of the point change

Mathematics

2 answers:

Anton [14]2 years ago

5 0

It will reflect across the x axis

vampirchik [111]2 years ago

5 0

Why not experiment? Plot the point (2,7), Then change the y-coordinate's sign: (2,-7). Plot this new point. How did the location of (2.7) change when you changed the sign of the y-coordinate (7)?

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The area of a square is 9/16 in2. What is the perimeter of the square

Alekssandra [29.7K]

Answer:

3 in²

Step-by-step explanation:

The fraction 9/16 is equal to the equation 9 ÷ 16.

9 ÷ 16 = 0.5652

Lets find the square root of 0.5652

$\sqrt{0.5652} = 0.75$

So the length of one side is 0.75 in²

Now we'll multiply this by 4, for the length of the 4 equal sides.

0.75 x 4 = 3.

This means the perimeter is 3 in².

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2 years ago

R + 12 = 86<br> what does r equal ?

AVprozaik [17]

86 - 12 = 74

74 + 12 = 86

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Viktor [21]

Answer:

f(x) is translated by 4 units left.

Step-by-step explanation:

did it help ?

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2 years ago

A botanist wishes to estimate the typical number of seeds for a certain fruit. She samples 48 specimens and counts the number of

baherus [9]

Answer: The open interval would be (31.4,42.5).

Step-by-step explanation:

Since we have given that

mean = 36.9

Standard deviation = 16.5

n = 48

At 98% confidence interval, z = 2.33

So, Interval would be

$\bar{x}\pm z\dfrac{\sigma}{\sqrt{n}}\\\\=36.9\pm 2.33\dfrac{16.5}{\sqrt{48}}\\\\=36.9\pm 5.549\\\\=(36.9-5.5,36.9+5.6\\\\=(31.4,42.5)$

Hence, the open interval would be (31.4,42.5).

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Vlad [161]

The answer is D
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2 years ago

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