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Zigmanuir [339]
2 years ago
10

Is the data in this group Proportional or Not proportional? Identify the correct reasoning.

Mathematics
1 answer:
Norma-Jean [14]2 years ago
7 0

Answer:

D

Step-by-step explanation:

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Find an expression for the nth term ( tn ) in each of the following sequences:
Alexandra [31]

Answer:

The expression for the nth term is Tn = 8n -7

Step-by-step explanation:

Here, we are to find an expression for the nth term of the sequence.

Mathematically, the nth term of an arithmetic sequence can be expressed as;

Tn = a + (n-1)d

for T2, the equation is

a + d = 9

for T4, the equation is

a + 3d = 25

we can substitute the equation of T2 into T4 but we first need to rewrite T4

a + d + 2d = 25

9 + 2d = 25

2d = 25 -9

2d = 16

d = 16/2

d = 8

now since a + d = 9

a = 9-d

a = 9-8

a = 1

So the expression for the nth term would be;

1 + (n-1)8

1 + 8n - 8

= 8n -8+1

= 8n -7

6 0
3 years ago
Their were 45 percent of boys in the class.What was the percent of girls in the class?
White raven [17]
55 because it's out 100
8 0
3 years ago
Read 2 more answers
Ir AB - 4x + 9. BC = 5x + 2, and AC - 56. then find the value for x, AB, BC.
tiny-mole [99]

Answer:

A B - 4 x + 9 B C = 5 x + 2 = A = 9 x/ B + 2/ B − 9 C

A C − 56 = A = 9 x /B + 2/ B − 9 C

x=A=9x/B+2x/B-9C

I hope this helps

6 0
3 years ago
Read 2 more answers
Which polynomial is in standard form?
skelet666 [1.2K]

Answer:

A.

Step-by-step explanation:

7 0
3 years ago
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Help pls... 20 points
jok3333 [9.3K]
Honestly I don't know congruent so congrats I can't answer sorry
8 0
2 years ago
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