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bazaltina [42]
3 years ago
15

Need help!! Anyone ?

Mathematics
1 answer:
VMariaS [17]3 years ago
4 0
Me I need help plz help me
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Simplify the expression.<br> -4i(2+3i)
oee [108]

Answer:

-8i + 12

Step-by-step explanation:

-4i(2 + 3i) = -8i - 12i^{2} = -8i - 12 * (-1) = -8i + 12

5 0
2 years ago
Read 2 more answers
Plz help
kvv77 [185]

Option C: 5 x(4 x+7)(3 x+2) is the possible expressions for length, width and height of the prism.

Explanation:

The volume of the rectangular prism is 60 x^{3}+145 x^{2}+70 x

To determine the length, width and height of the rectangular prism, let us factor the expression.

Thus, factoring 5x from the expression, we have,

5 x\left(12 x^{2}+29 x+14\right)

Let us break the expression 12 x^{2}+29 x+14 into two groups, we get,

5x[\left(12 x^{2}+8 x\right)+(21 x+14)]

Factoring 4x from the term 12 x^{2}+8 x , we get,

5x[4 x(3 x+2)+(21x+14)]

Similarly, factoring 7x from the term 21 x+14 , we get,

5x[4 x(3 x+2)+7(3x+2)]

Now, let us factor out 3x+2, we get,

5 x(4 x+7)(3 x+2)

Hence, the possible expressions for length, width and height of the prism is 5 x(4 x+7)(3 x+2)

Therefore, Option C is the correct answer.

8 0
2 years ago
化學製程中溫度的影響 為研究化學製程中溫度對產量之影響,我們在 3 種溫度下各生產 3批產品,結果如下表。請建立 ANOVA 表。在 0.05 顯著水準檢定不同的溫度是否會影響平均產量。
fiasKO [112]

Answer:

Step-by-step explanation:

產品 1 14 20 13

產品 2 15 11 18

產品 3 12 15 16

8 0
3 years ago
What is the property used for 0+91=91
Lisa [10]
<u><em>The additive identity property </em></u>. . . is being used here because no matter what the value is, whenever you add zero (0) to it, you'll always get the value your started with.
6 0
2 years ago
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A square classroom has sides that are 21 feet long. what is the room's perimeter
lutik1710 [3]
The answer is 84 because 21 times 4 equals 84
4 0
3 years ago
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