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2 years ago

I will mark you brainliest if you get the question right

Mathematics

2 answers:

Helen [10]2 years ago

6 0

Answer:

the answer of this question is

x+13+10x+13+2x-2=180

13x+24=180

13x=156

x=12

q=10.12+13

123

BigorU [14]2 years ago

3 0

Answer:

P = 25

Q = 133

R = 22

Step-by-step explanation:

x + 13 + 10x + 13 + 2x - 2 = 180 add x's

13x + 13 + 13 - 2 = 180 add number's on left

13x + 24 = 180 subtract 24 from both sides

13x = 156 divide both sides by 13

x = 12

x + 13 = 12 + 13 = 25

10x + 13= 10(12) + 13 = 133

2x -2 = 2(12) - 2 = 22

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Wendell is looking over some data regarding the strength, measured in Pascals (Pa), of some building materials and how the stren

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1 year ago

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2 years ago

Read 2 more answers

Write the following series in sigma notation.<br> 7 + 16 + 25 +34 +43 +52 + 61

Solnce55 [7]

The series 7 + 16 + 25 +34 +43 +52 + 61 is an illusration of arithmetic series

The sigma notation of the series is: $\sum\limits^7_{n=1} {9n - 2}$

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The series is given as:

7 + 16 + 25 +34 +43 +52 + 61

The above series is an arithmetic series, with the following parameters

First term, a = 7
Common difference, d = 9
Number of terms, n = 7

Start by calculating the nth term using:

a(n) = a + (n - 1) * d

This gives

a(n) = 7 + (n - 1) * 9

Evaluate the product

a(n) = 7 - 9 + 9n

Evaluate the difference

a(n) = 9n - 2

So, the sigma notation is:

$\sum\limits^7_{n=1} {9n - 2}$

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1 year ago