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erastova [34]
1 year ago
5

How do I simplify this expression

Mathematics
1 answer:
emmainna [20.7K]1 year ago
5 0
7 squared is 7 x 7 so the answer would be 49 I believe
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Find the equation of the line that passes through (-2,-3) and is parallel to 3x+2y=5
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Answer:

8,3

Step-by-step explanation:

4 0
3 years ago
An elevator is on the tenth floor and drops 7 floors but then rises 12 floors. On what floor is the
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Show how the following sequences is an arithmetic or not <br>please help me ​
serious [3.7K]

Answer:

not arithmetic

Step-by-step explanation:

An arithmetic sequence has a common difference d between consecutive terms.

Given

T_{n} = 2n² - 1

Substitute in n = 1, 2, 3, 4 to generate the first 4 terms of the sequence

T_{1} = 2(1)² - 1 = 2 - 1 = 1

T_{2} = 2(2)² - 1 = 8 - 1 = 7

T_{3} = 2(3)² - 1 = 18 - 1 = 17

T_{4} = 2(4)² - 1 = 32 - 1 = 31

check the difference between consecutive terms

7 - 1 = 6

17 - 7 = 10

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5 0
3 years ago
In 56 years Kevin will be 9 times as old as he is right now. How old is he right now?
Artyom0805 [142]
Kevin is 6-7 years old as 6.2222222222 x 9 is 56
4 0
3 years ago
.can you help please ​
sweet [91]

Answer:

38.81cm³

Step-by-step explanation:

Volume of a sphere = 4/3πr³

Diameter is 4.2

radius= 4.2/2 = 2.1 or 21/10

4/3 × 22/7 × 21/10 × 21/10 × 21/10

= 4851/125

= 38.808

≈38.81cm³

3 0
2 years ago
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