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Anni [7]
3 years ago
14

Please help me I have

Mathematics
2 answers:
monitta3 years ago
8 0

Answer: a or D

y e s maybe wrong

fenix001 [56]3 years ago
8 0

Answer:

A

Step-by-step explanation:

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A class photo is being taken of six students, sitting in a row. Three of the students are Jamie, Marshall, and Susan, and Jamie
irina [24]

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2 different arrangments

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3 years ago
Sylvia, John, and Peter invested their savings in a bank. The ratio of the investment of Sylvia's to John's is 1: 3 and that of
Nastasia [14]

Answer:

4 : 12 : 15

Step-by-step explanation:

S : J = 1 : 3

J : P= 4 : 5

Using John's ratio to find a common ratio for all

S : J

(1 : 3)4 = 4 : 12

J : P

(4 : 5)3 = 12 : 15

Therefore our ratio is

S : J : P

4 : 12 : 15

3 0
3 years ago
I need to simplify this
Anon25 [30]
Your answer would be
-7-(-i)+6-3i
3 0
3 years ago
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25=2y - 15 solve y AND SIMPLIFY HELP ME PLEASEE
sammy [17]

Answer:

y=20

Step-by-step explanation:

25+15=40

2y=40

40/2=20

y=20

8 0
2 years ago
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Find the sum of the geometric sequence –3, 15, –75, 375, … when there are 9 terms and select the correct answer below.
zavuch27 [327]
Sn=sum of the n terms of the geometric sequence.
a= the first term
r=the common ratio
n=numbers of terms.

Sn=a[(1-r^n)/(1-r)]

In this case:
a=-3
r=a₂/a₁=15/-3=-5
n=9

S₉=-3[(1-(-5)⁹) / (1-(-5))=
S₉=-3(1+1953125)/6)=
S₉=-3(1953126/6)=
S₉=-3(325521)
S₉=-976563

Answer: A. -976563
3 0
3 years ago
Read 2 more answers
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