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arsen [322]
3 years ago
14

The second term of an arithmetic sequence is 7, the sum of the first four terms in the arithmetic sequence is 12, find the first

term and the common difference

Mathematics
1 answer:
Montano1993 [528]3 years ago
3 0
Consider the following short explanation.
Answer: a1=15; d= -8.

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Match the number of significant figures to the value or problem.
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Brroooommm.

Step-by-step explanation:

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A polynomial has a root that equals 5-7i. Name one other root of this polynomial​
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5+7i is another root.
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3 years ago
What is the value of the variable in the equation, r-17=22 *
aleksklad [387]

Answer:

Step-by-step explanation:

Example

With numbers

18+4=22

18+4−4=22−4

18=18

With variables and numbers

x+4=22

x+4−4=22−4

x=18

We subtract 4 from both sides. Example

Which of the following numbers is a solution to the equation? x = 2, 7,  or 8?

14−x=7

Here you are given the numbers 2, 7 and 8. One of these numbers will satisfy the equation. If you don't know the solution right away, you can investigate which of the given numbers gives results in the correct answer by plugging in the different values of x.

Answer: x=7

Example

8x=64

8⋅x=64

Which number should you multiply 8 by to get a product of 64? By using the multiplication table, we know that the number is 8.

8⋅8=64

When we solve an equation, we figure out what value of x (or any other variable) makes the statement true (satisfies the equation).

8 0
3 years ago
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Is 8 and 45 a domain of integers from 0 to 5
Thepotemich [5.8K]

Answer:

yes

Step-by-step explanation:

7 0
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