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pentagon [3]
2 years ago
6

The angles of a triangle are equal to x, x+4 and 20x. What is the measure of the largest angle of the triangle?

Mathematics
1 answer:
Ipatiy [6.2K]2 years ago
3 0

Answer:

  160°

Step-by-step explanation:

The angle sum theorem tells you the sum of angles in a triangle is 180°. The sum of angles in the given triangle is ...

  x + (x +4) + 20x = 180

  22x +4 = 180 . . . . . . . . . . collect terms

  22x = 176 . . . . . . . . . . subtract 4

  x = 8 . . . . . . . . . . . divide by 22

  20x = 160 . . . . find the largest angle

The measure of the largest angle is 160°.

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Rom4ik [11]
Let x be the common factor between chickens and ducks. Then:
6x/(5x-63)=3/1
15x-189=6x
9x=189
x=21
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3 years ago
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If y varies jointly with x and z and y=40 when x=10 and z=9 find z when x =55 and y=105
Eduardwww [97]

Answer:

  z = 189/44

Step-by-step explanation:

The "varies jointly" relationship can be expressed by ...

  y = kxz

We can find k from the given values.

  40 = k(10)(9)

  40/90 = k = 4/9 . . . divide by the coefficient of k

Now we want to find z for given values of x and y. That can be found from ...

  y = (4/9)xz

  9y/(4x) = z . . . . . multiply by 9/(4x)

Filling in the new numbers, we have ...

  z = 9·105/(4·55)

  z = 4 13/44 = 189/44 ≈ 4.2954...(repeating 54)

4 0
3 years ago
REBECCA WANTS TO KNOW WHICH CATEGORY OF MUSIC IS MOST POPULAR AMONG TEENAGERS
Valentin [98]
Whats the question???
3 0
3 years ago
Please help me fast and show all your work please thx ​
Kitty [74]

If the two diagonals are d and D, the are of the rhombus is

A=\dfrac{dD}{2}

So, in your case, the area is

A=\dfrac{15\cdot 35}{2}=262.5

The other options are wrong because:

  • option A doens't divide by 2, thus getting twice the area of the rhombus
  • option B summed the diagonals instead of multiplying them
  • option D took the difference of the diagonals.
8 0
2 years ago
Given: Trapezoid EFGH with vertices El-5.3).(-3.3). G(-1.1). and H(-6.1) as shown in the diagram below.
sergij07 [2.7K]

Answer: 5, -3

Step by Step Explaination:

4 0
3 years ago
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