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taurus [48]
3 years ago
12

What is the value of x ​

Mathematics
1 answer:
attashe74 [19]3 years ago
5 0

Answer:

the answer is 82° because if u added 45+53+82 it would come out to be 180° which is the overall degrees of a triangle.

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Two terms of an arithmetic sequence are a10=16 and a35=66 find the sum of the first 75 terms
andrew11 [14]

The sum of the first 75 terms of the arithmetic sequence that has 10th term as 16 and the 35th term as 66 is 5400.  

<h3>How to find the sum of terms using Arithmetic sequence formula</h3>

aₙ = a + (n - 1)d

where

  • a = first term
  • d = common difference
  • n = number of terms

Therefore, let's find a and d

a₁₀ = a + (10 - 1)d

a₃₅ = a + (35 - 1)d

Hence,

16 = a + 9d

66 = a + 34d

25d = 50

d = 50 / 25

d = 2

16 - 9(2) = a

a = 16 - 18

a  = -2

Therefore, let's find the sum of 75 terms of the arithmetic sequence

Sₙ = n / 2 (2a + (n - 1)d)

S₇₅ = 75 / 2 (2(-2) + (75 - 1)2)

S₇₅ = 37.5 (-4 + 148)

S₇₅ = 37.5(144)

S₇₅ = 5400

learn more on arithmetic sequence here: brainly.com/question/1687271

4 0
3 years ago
What is the answer to 7.13 x 5.5 ?
shepuryov [24]

Answer:

39.215

that is your answer

5 0
3 years ago
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Where do i put the parentheses in 4+3x2-4÷2
melamori03 [73]

Answer:

4+(3x2)-4/2

Step-by-step explanation:

pemdas

5 0
3 years ago
Could you please answer this question?
Juli2301 [7.4K]

Answer:

.

Step-by-step explanation:

3x - y = 17 .......A

10 × [x/5 + y/2] = 10 × 0

2x + 5y = 0 .......B

......A× 5 both 2 sides of equation

15x - 5y = 85 .....C

......B + ........C

2x + 15x = 0 + 85

17x = 85

x = 85/17

x = 5

put x value in ........A or .......B or ......C

you will receive y = -2

5 0
3 years ago
Read 2 more answers
Word problem for 456 divided by 6
musickatia [10]

Answer:

76

Step-by-step explanation:

456 divided by 6 equals 76. Hope that helps.

8 0
3 years ago
Read 2 more answers
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