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Genrish500 [490]
3 years ago
5

Help please!!!!!!!!!!!!!!!!!!!!!:):)​

Mathematics
1 answer:
Eddi Din [679]3 years ago
6 0

Answer:

1-g

2-b

3-a

4-i

5-f

6-e

7-d

8-c

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Calculate the sum of the first 30 terms in the sequence that begins with 70,65,60
Afina-wow [57]

\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\la\la\la\la\ddddddddddddddddddddddddddddddddcleverdddddd\ffffffffffffffffffffffffffffffffffffffff\pppppppppppppppppppppppppppppppppppp\ddddddddddddddddddd \displaystyle \Large \boldsymbol{} a_1=70  \  ; \ d=-5  \\\\S_n=\frac{a_1+a_n}{2} \cdot n \ ; \ a_n=a_1+(n-1)d \Longrightarrow \\\\\\ S_{30}=\frac{70+70-29\cdot5}{2} \cdot 30 =-75 \\\\\\Answer: S_{30}=-75

4 0
3 years ago
2, 8, 9, 20, 22, 25, 5<br> Mean ??<br> Mode ??<br> Median ??
Kobotan [32]

Answer:

the mean is the sum of them all divided by the number of terms.

mean: 13

the mode is the element that occurs MOST in the data set.

mode: none

the median  is the middle value of all of the numbers.

median: 9

6 0
3 years ago
Read 2 more answers
A tractor costs $15,450 and depreciates in value by 14% per year how much will the tractor be worth after 3 years
____ [38]

Answer:

$8,961 is your answer.

Step-by-step explanation:

What you do is multiply.

<em>15,450 x 14% = 2,163</em>

<em>2,163 x 3 = $6,489</em>

<em>$15,450 - $6,489 = $8,961</em>

$8,961 is your answer.

8 0
4 years ago
Read 2 more answers
Can someone determine the values of AC AND CB please
Eduardwww [97]

Answer:

AC 29

CB 15

Step-by-step explanation:

5x-6+2x+1=44 add like terms

7x-5=44

7x= 49

x= 7

plug back in

5(7)-6 = 29

2(7)+1 = 15

4 0
3 years ago
Two sides of a triangle have lengths 6 and 18. Which expression describes the length of the third side?
eimsori [14]
I believe you have to multiply 6 by 8 which gives you the answer of 48.
3 0
4 years ago
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