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alexandr1967 [171]
3 years ago
10

What is the value of x?

Mathematics
1 answer:
Llana [10]3 years ago
8 0
The external angle is equal to the sum of the opposite internal angles.
.. 6x +1 = (2x +10) +79
.. 4x = 88 . . . . . . . . . . . . . subtract 2x+1
.. x = 22
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Find the sum of the first 8 terms of the sequence. <br><br> 1, -3, -7, -11, ...
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1+(-3)+(-7)+(-11)+(-15)+(-19)+(-23)+(-27) = \\1-3-7-11-15-19-23-27 = \\-35-19-23-27= \\-35-19-50=\boxed{-104}

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r3t40

4 0
3 years ago
How would solve 2s + s = 36
Lesechka [4]
2s + s = 36
3s = 36
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7 0
3 years ago
Age c) The group is planning to build a fence around the garden. How many yards of fencing materials do they need for the fence?
FromTheMoon [43]

Answer:

Step-by-step explanation:

The perimeter is obtained by taking the sun of the fence :

Outer fencing :

Let's obtain b :

From Pythagoras :

b² = 15² - 12²

b = sqrt(225 - 144)

b = 9

Outer fencing = 2(12+6) + 2(8+9)

= 2(18) + 2(17)

= 36 + 34

= 70

Inner fencing :

(8 + 9 + 12 + 6 + 15 + 10) = 60

(70 + 60) = 130 yards

3 0
2 years ago
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