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Digiron [165]
3 years ago
15

Anyone willing to take there time for this question

Mathematics
1 answer:
pentagon [3]3 years ago
7 0

Answer:

B

Step-by-step explanation:

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What is the sum of the arithmetic series? ∑[i=1,15,Fn=5i-1]
Helen [10]
\bf \sum\limits_{i=1}^{15}\ 5i-1\implies 5\sum\limits_{i=1}^{15}\ i-\sum\limits_{i=1}^{15}\ 1\implies 5\left[ \cfrac{15(15+1)}{2} \right]-(15\cdot 1)
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5\cdot (15\cdot 8)-15\implies 585
8 0
3 years ago
Can someone help me with both of the or may be one
azamat

Question 6

Given:

QR = RS

QR = x + 6

RS = 4x

To find:

Length of line segment QS

Steps:

We know QR = RS, so substituting we get,

x + 6 = 4x

     6 = 4x - x

     6 = 3x

  6/3 = x

     2 = x

      x = 2

Now,

QS = QR + RS

QS = x + 6 + 4x

QS = 2 + 6 + 4(2)

QS = 2 + 6 + 8

QS = 8 + 8

QS = 16 units

Therefore, the length of QS is 16 units

Question 7

Given:

QR = RS

QR = 2x - 2

RS = 2x

To find:

Length of line segment QS

Steps:

We know that QR = RS, so substituting the values we get,

          QR = RS

      3x - 2 = 2x

3x - 2 - 2x = 0

     3x - 2x = 2

               x =2

Now,

QS = QR + RS

QS = 3x - 2 + 2x

QS = 3(2) - 2 + 2(2)

QS = 6 - 2 + 2(2)

QS = 6 - 2 + 4

QS = 4 + 4

QS = 8 units

Therefore, the length of QS is 8 units

Happy to help :)

If u need any help feel free to ask

7 0
2 years ago
Read 2 more answers
Helpppppp for brainliest
OlgaM077 [116]

Answer:

508 sheets /4 shelters = 127 sheets per shelter.

6 0
3 years ago
What is this?<br><br>Khan Academy ​
marissa [1.9K]

Answer:

slope = -8/3   (-8 over 3)

Step-by-step explanation:

rise over run

rise is negative since the line is going down = -8

run = 3

6 0
3 years ago
Please help . I’ll mark you as brainliest if correct !!!!
vredina [299]

Answer:

12 seconds

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
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