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mash [69]
3 years ago
8

Simplify the expression. −(−x)3 − x3 A. −4x3 B. −2x3 C. 2x3 D. 0

Mathematics
2 answers:
Zarrin [17]3 years ago
8 0

Answer:

D. 0

Step-by-step explanation:

djverab [1.8K]3 years ago
6 0

Answer:

d. 0

Step-by-step explanation:

−(−x)3 − x3

(remove parentheses)

x * 3 -x *3

(eliminated opposites)

0

(your answer)

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A committee is formed consisting of one representative from each of the 4 departments (CS-IS-IT-SW) in the computer science coll
alexandr1967 [171]

Step-by-step explanation:

each department has 3 options for their representative.

and each of these options can be associated with the 3 options of the next department. and so on.

so, we have

3×3×3×3 = 3⁴ = 81

possibilities to firm that committee overall.

7 0
3 years ago
Usama needs to read 6 novels each month.
Delicious77 [7]

Answer:

78 novels

Step-by-step explanation:

N= novels

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6N = 1M

? = 13M

6N × 13M= 78NM

78NM ÷ 1M

cancel M, therefore;

the number of novels Usama needs to read in 13 months is 78.

5 0
2 years ago
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Kaya devoted 2/5 of her study time to mathematics, 3/20 of her time to social studies, 1/3 of her time to chemistry and the rema
andrezito [222]

Answer:

  54 minutes

Step-by-step explanation:

The sum of fractions is ...

  2/5 + 3/20 + 1/3 = 11/20 +1/3 = (3·11 + 20·1)/(20·3) = 53/60

Then the 42 minutes devoted to English represents 1 - 53/60 = 7/60 of her study time.

Kaya's social studies time is 3/20 = 9/60 of her total, so the ratio of SS to Eng is ...

  SS : Eng = (9/60) : (7/60) = 9 : 7

When we multiply the numbers in this ratio by 6, we find ...

  SS : Eng = 54 : 42

Kaya spent 54 minutes studying social studies.

5 0
3 years ago
Which ratio forms a proportion with 18/27 ?HELPPPPPP
harkovskaia [24]
 it would be the third one, 2/3
6 0
3 years ago
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3 1/2 divided 2 3/5 in its simplest form
xxMikexx [17]

Answer:

9.1 is answer or 91/10 or 9 1/10

4 0
3 years ago
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