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2 years ago

15

There are 65 pens in 3 boxes. How many pens are in 12 boxes?

2 answers:

Mandarinka [93]2 years ago

7 0

Answer:

260

Step-by-step explanation:

multiple them all then divide by 3

Rainbow [258]2 years ago

6 0

Answer:

260

Step-by-step explanation:

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What happens when you reflect an object over intersecting line( combination of reflection)?

bazaltina [42]

The result concluded is equivalent to a single rotation transformation of the original object.

<h3>Explanation of how reflection across axis works?</h3>

When a graph is reflected along an axis, say x-axis, then that leads the graph to go just on the opposite side of the axis as if we're seeing it in a mirror.

The Compositions of Reflections Over Intersecting Lines states that if we perform a composition of two reflections over two lines that intersect.

The result concluded is equivalent to a single rotation transformation of the original object.

Learn more about reflection;

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2 years ago

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What does d/dx (-8x - 643)=

poizon [28]

See the attachment.....

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2 years ago

If m = 35 cm and n = 37 cm, what is the length of l?

ElenaW [278]

Minus m-n = 36 so 36 is your answer.

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2 years ago

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This figure is made up of a quadrilateral and a semicircle.

Arturiano [62]

Answer:

The correct option is B. The area of the figure is 40.4 units².

Step-by-step explanation:

The line AB divides the figure in two parts one is a rectangle and another is semicircle.

The distance formula is

$d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

The length of AB is

$AB=\sqrt{(2+3)^2+(4-2)^2}=\sqrt{25+4}=\sqrt{29}$

The length of AD is

$AD=\sqrt{(-1+3)^2+(-3-2)^2}=\sqrt{4+25}=\sqrt{29}$

Since AB=AD, therefore ABCD is a square. The area of the of square is

$A_1=a\times a=\sqrt{29}\times \sqrt{29} =29$

The area of square is 29 units².

The area of a semicircle is

$A_2=\frac{\pi}{2}r^2$

Since AB is the diameter of the semicircle, therefore the radius of the semicircle is

$r=\frac{d}{2}=\frac{\sqrt{29}}{2}$

The area of the semicircle is

$A_2=\frac{3.14}{2}(\frac{\sqrt{29}}{2})^2=40.3825$

The area of the figure is

$A=A_1+A_2=29+11.2825=40.3825\approx 40.4$

Therefore the area of the figure is 40.4 units². Option B is correct.

5 0

3 years ago

Mark reduce the size of a photo to a height of 4 inches. What is the new width if it was originally 16 inches tall and 8 inches

uranmaximum [27]

Answer:

Step-by-step explanation:

new height is ¼ of original height

new width = ¼×8 = 2 inches

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3 years ago

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