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gizmo_the_mogwai [7]
3 years ago
15

Please help i dont want to fail final exam

Mathematics
2 answers:
BartSMP [9]3 years ago
8 0

7\sqrt 5 \cdot \sqrt 8\\\\=7\sqrt{5\cdot 8}\\\\= 7 \sqrt{5\cdot 4 \cdot 2}\\\\=7\sqrt {4} \cdot \sqrt {5 \cdot 2}\\\\=7\cdot 2 \sqrt{10}\\\\=14\sqrt{10}

marin [14]3 years ago
5 0

Answer:

bottom. one is correct I know it for a fact

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100 points will give brainly please help
Stels [109]
Answer:
1. Sum of the interior angles = 720°
2. (6x) + (5x + 26.5) + (7x - 8) + (4x + 21.5) + (5x + 19) + (10x + 13.5) = 720
3. Angle A = 6x = 6(17.5) = 105
Angle B = (5x + 26.5) = 114
Angle C = (7x - 8) = 114.5
Angle D = (4x + 21.5) = 91.5
Angle E = (5x + 19) = 106.5
Angle F = (10x + 13.5) = 188.5

Step-by-step explanation:
1. The sum of the interior angles = (The number of sides - 2) times 180
The sum of the angles of this polygon with 6 sides is 6 - 2) times 180 = 720°.
2. ∠A + ∠B + ∠C + ∠D + ∠E + ∠F = 720°
(6x) + (5x + 26.5) + (7x - 8) + (4x + 21.5) + (5x + 19) + (10x + 13.5) = 720
37x + 72.5 = 720 Simplify adding x terms and numbers)
37x = 647.5 Subtract 72.5 from both sides
x = 17.5 Dividing both sides by 37

Solve for each angle using x = 17.5
3. Angle A = 6x = 6(17.5) = 105
Angle B = (5x + 26.5) = 114
Angle C = (7x - 8) = 114.5
Angle D = (4x + 21.5) = 91.5
Angle E = (5x + 19) = 106.5
Angle F = (10x + 13.5) = 188.5
8 0
2 years ago
(-11)×[-52+(-17)-(-39)]
ANTONII [103]

Step-by-step explanation:

  • (-11)×[-52+(-17)-(-39)]
  • -11×[-52-17+39)]
  • -11×[-69+39]
  • -11×[30]
  • -330
5 0
3 years ago
(3+3x6+(3 with the power of 2)-3
Effectus [21]
You do pemdas and the answer should be 27
6 0
4 years ago
Find the difference 7 7/8 - 3 1/4=
Marina86 [1]
You can subtract separately: 7-3=4 7/8-1/4=5/8. The answer would be 4 5/8
6 0
3 years ago
Read 2 more answers
15.75 - ( -3.85) + ( -2.54)
Tomtit [17]
Add 15.75 and 3.85 together 19.60 Then subtract by 2.54 = 17.06 The answer is 17.06. Thank you
7 0
3 years ago
Read 2 more answers
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