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svp [43]
3 years ago
12

What is the 21st term of the sequence with a1 = -6 and d = 4?

Mathematics
2 answers:
Nutka1998 [239]3 years ago
8 0

Answer:

answer is 74

Step-by-step explanation:

-6+4 x 20

- 6+80=74

alexgriva [62]3 years ago
4 0

Answer:

100% 74 i got it right in muh test !!!! for myastravo!

Step-by-step explanation:

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Divide the following polynomials. Write the answer in descending powers of a.
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The answer to this question is 5a^2-6a+20+(-175a+102)over(5a^2+6a-9)
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Answer:

The total points by Washington High School =  162 points

The total points by  Johnson High School   =  159 points

The total points by  Roosevelt High School =  108 points

The total points by  Lewis High School =  196 points

Washington High School  has WON the meet.

Johnson High School came second.

The difference in the points= 2 points

Step-by-step explanation:

Points awarded for first place = 10 points

Points awarded for second place = 8 points

Points awarded for third place = 7 points

About Washington High School

10 first places  = 10 x ( 10) = 100 points

6 second places  = 6 x ( 8) = 48 points

2 first places  = 2 x ( 7) = 14 points

So, the total points by  Washington High School  = Sum of all points  

=  100 + 48 + 14   =  162 points     .............. (1)

About Johnson High School

8 first places  = 8 x ( 10) = 80 points

9 second places  = 9 x ( 8) = 72 points

1 first places  = 1 x ( 7) = 7 points

So, the total points by  Johnson High School  = Sum of all points  

=  80 + 72 + 7   =  159 points    .............. (2)

About Roosevelt High School

4 first places  = 4 x ( 10) = 40 points

5 second places  = 5 x ( 8) = 40 points

4 first places  = 4 x ( 7) = 28 points

So, the total points by  Roosevelt High School  = Sum of all points  

=  40 + 40 + 28   =  108 points  .............. (3)

About Lewis High School

3 first places  = 3 x ( 10) = 30 points

3 second places  = 3 x ( 8) = 24 points

6 first places  = 6 x ( 7) = 42 points

So, the total points by  Lewis High School  = Sum of all points  

=  30 + 42 + 24   =  96 points      .............. (4)

Now, comparing all four equation, we get that:

Washington High School  has WON the meet.

Johnson High School came second.

The difference in the points  = 162 - 159 = 2 points

6 0
3 years ago
Andy completes the square for the equation x2 + 6x - 8 = 0. Which of the following equations reveals the vertex of the parabola?
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If the equation x^2+6x-8 has undergo completing the square, the answer would be:
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Find the area of the polygon.
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Now, we have to multiply 11 by the height : 5. 

11 times 5 is 55 and that is your area. 55 units squared.
7 0
3 years ago
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