3 years ago

(3x²+6)(3x²-6) please help

Mathematics

1 answer:

givi [52]3 years ago

4 0

Answer:

9x^4 -36

Step-by-step explanation:

see image below:)

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Solve x2 + 4x = 4 for x by completing the square.

KengaRu [80]

Answer:

x = 2

Step-by-step explanation:

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3 years ago

Please help me now please

nadezda [96]

A2+B2=C2

12(2)+B(2)=27.1(2)

24+B=54.2
-24 -24
——————
B=30.2

Answer is 30.2
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3 years ago

A right rectangular prism has a length of 8 ft, width of 8 1/4 ft, and height of 4 1/2 ft. What is the volume of the prism?

Dahasolnce [82]

<u>Answer:</u>

297 cubic feet

<u>Step-by-step explanation:</u>

We are given that a right rectangular prism has a length of 8 ft, width of 8 1/4 ft, and height of 4 1/2 ft.

We are to find the volume of this prism.

We know the formula of volume of a rectangular prism is given by: $w \times h \times l$

where $w$ is the width, $h$ is the height and $l$ is the length of the prism.

So substituting the given values in the formula:

Volume of prism = $8\frac{1}{4} \times 4\frac{1}{2} \times 8 =$ 297 cubic feet

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3 years ago

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Cara is a high school student. On average, there are 26 students per class at her school, with a standard deviation of 3 student

aliina [53]

Answer:

B. 97%

Step-by-step explanation:

20 students is -2 standard deviations away from the mean

35 is +3 standard deviations away from the mean

100 - 2.4 = 97.6

(2.4 is amount of data we are not using)

please refer to the standard deviation graph attached :)

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2 years ago

15% of the apples in a crate are rotten. There are 12 rotten apples in the crate.

Svetradugi [14.3K]

There are a total of 80 apples in the crate.

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4 years ago

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