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OlgaM077 [116]
3 years ago
11

Determine whether the sequence 7, 21, 35, 49 is geometric. If so, find its common

Mathematics
2 answers:
Masja [62]3 years ago
5 0

Answer:

B

Step-by-step explanation:

Firlakuza [10]3 years ago
4 0

Answer:

a. no

Step-by-step explanation:

The sequence is arithmetic.  It has a common difference of 14.

7 + 14 = 21

21 + 14 = 35

35 + 14 = 49

A geometric series has a common ratio (multiplication).  For example:

7 × 3 = 21

21 × 3 = 63

63 × 3 = 189

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Find the value of c that completes the square x2+34x+c​
ruslelena [56]

Answer:

c = 289

Step-by-step explanation:

Given

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add ( half the coefficient of the x- term )² to x² + 34x

= x² + 2(17)x + 17²

= x² + 34x + 289 ( with c = 289 )

= (x + 17)² ← perfect square

7 0
3 years ago
Commutative property for 70*6000
Crazy boy [7]
(70*6000 = 420000) (6000*70 = 42000)

Bolded is the answer. 
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3 years ago
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The local newspaper has letters to the editor from 70 people. If this number represents 5% of all of the​ newspaper's readers, h
Alex Ar [27]

Answer:

This shows us that there are 1400 readers.

Step-by-step explanation:

To work this out you would first need to find how many times 5% goes into 100%, You can do this by dividing 100 by 5, this gives you 20. This is because the whole amount  is equivalent to 100%.

To work out the total number of readers you would multiply 70 by 20, this gives you 1400. This is because we know that 70 is equivalent to 5% and that 5% goes into 100% 20. So by multiplying 70 by 20 we are working out the total (100%), and that this shows us there are 1400 readers.

1) Divide 100 by 5.

100/5=20

2) Multiply 70 by 20.

70*20=1400

8 0
3 years ago
Find the missing length. The triangles in each pair are similar.
ira [324]
The answer is C 26

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7 0
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