3 years ago

Show all your work to factor x^4-10x^2+9

Mathematics

1 answer:

wariber [46]3 years ago

4 0

Answer:

(x + 3)(x + 1)(x − 1)(x − 3) = 0

Step-by-step explanation:

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Answer:

A. 6975 cm, B. 69750 mm

Step-by-step explanation:

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3 years ago

A school sells pencils to student for 25 cents each.If a student has $5, how many pencils can the student buy?

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The student can buy 20

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3 years ago

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What is the area of the sector with a central angle of 49° and a radius of 11 cm? Use 3.14 for pi and round your final answer to

olga_2 [115]

Answer:

$\boxed{\text{51.71 cm}^{2}}$

Step-by-step explanation:

If the angle θ is in radians, the formula for the area (A) of a sector of a circle is

A = ½r²θ

If θ is in degrees

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Data:

θ = 49°

r = 11 cm

Calculation:

$\begin{array}{rcl}A& = &3.14\times 11^{2}\times\dfrac{49}{360}\\\\ & = &3.14 \times 121 \times 0.1361\\ & = & \mathbf{51.71}\\\end{array}\\\text{The area of the sector is }\boxed{\textbf{51.71 cm}^{2}}$

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3 years ago

Rectangle GHIJ is dilated to be a smaller shape. What is the name of the image after the dilation?

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To know whether the shape is the pre-image or the resulting shape, we need to look at its name.

In this instance, the name of the pre-image is GHIJ.

The resulting name of the shape would be G'H'I'J'.

An apostrophe is placed after every letter to signify that it is the resulting coordinate of the original.

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2 years ago

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