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Contact [7]
3 years ago
7

AyudaaAAA DOY CORONA​

Mathematics
1 answer:
mel-nik [20]3 years ago
8 0

Answer:

uhhhh I dont speak Spanish

You might be interested in
1. The sum of first n terms of an arithmetic sequence is 3n²+4n
valentina_108 [34]

Answer:

<h3>           a.  a₁=7,     b.  a_n=7n+1,    c.  a₂₀=141</h3>

Step-by-step explanation:

a.

 a_1=S_1=3\cdot1^2+4\cdot1=3+4=7

b.

   a_1+a_2=S_2\\\\a_1+a_1+d=3\cdot2^2+4\cdot2\\\\7+7+d=3\cdot4+8\\\\14+d=12+8\\\\d=6\\\\\\a_n=a_1+d(n-1)\\\\a_n=7+6(n-1)\\\\a_n=7+6n-6\\\\\underline{a_n=7n+1}

c.

 a_{20}=7\cdot20+1=141

5 0
3 years ago
ANSWER ASAP PLEASE BEING TIMEDDDDDDDD
Reil [10]
The answer is 8 + x > 5
An equation or an inequality that contains at least one variable is called an open sentence.
When you substitute the variable in an open sentence with a number the resulting statement is either true or false. If the statement is true the number is a solution to the equation or inequality.

Hope this helps you !!
5 0
3 years ago
Read 2 more answers
Answer correct you get brainliest answer.​
iragen [17]

Answer:

part c

Step-by-step explanation:

because i have done it before

3 0
3 years ago
What is an equation of the line that passes through the point(2,−2) and is parallel to the line 5x-2y=4
mixer [17]

Answer:

y = 5/2x - 7

Step-by-step explanation:

5x - 2y = 4

5x - 4 = 2y

y = 5/2x - 2

Slope = 5/2

Point (2,-2)

y-intercept: -2 - (5/2)(2) = -2 - 5

= -7

3 0
2 years ago
5x+2=5x+2 has how many solutions?
tigry1 [53]
It has 1 solution i believe
8 0
3 years ago
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