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andre [41]
4 years ago
15

Two ducklings wander away from the nest while their mother is away. The first duckling's displacement (distance and direction) f

rom the nest is (12,5) The second duckling's displacement is (13,-8) How much farther did the second duckling wander than the first duckling?
Mathematics
1 answer:
aksik [14]4 years ago
4 0

the second duckling is wandering by 2.6 units distance than the first duckling .

<u>Step-by-step explanation:</u>

Here we have , Two ducklings wander away from the nest while their mother is away. The first duckling's displacement (distance and direction) from the nest is (12,5) The second duckling's displacement is (13,-8) . We need to find How much farther did the second duckling wander than the first duckling. Let's find out:

Let a = (12,5) and b =(13,-8)

The distance each duckling wandered is the magnitude of its displacement vector. Therefore, the expression Distance second duck wandered is given by :

⇒ D  = |b|-|a|

⇒ D  = \sqrt{13^2+(-8)^2} -\sqrt{12^2+5^2}

⇒ D  = \sqrt{233} -\sqrt{169}

⇒ D  =15.26 -13

⇒ D  =2.6

Therefore , the second duckling is wandering by 2.6 units distance than the first duckling .

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Lera25 [3.4K]

Answer:

80 or 81 minutes

Step-by-step explanation:

12.28-5 =7.28 7.28/.09= 80.88

4 0
3 years ago
Can you help me please ​
alexira [117]

Answer:

Please check the explanation.

Step-by-step explanation:

Given that

|v|=38

Ф = 120°

<u>Finding the horizontal component</u>

The horizontal component can be obtained using the formula

Vx = |v| cos Ф

     = 38 cos 120°

     = 38 (-0.5)

      = -19

Thus, the  horizontal component is:

Vx = -19

<u>Finding the vertical component</u>

The vertical component can be obtained using the formula

Vy = |v| sin Ф

    = 38 sin 120°

    = 38 (0.86)

    = 32.68

Thus, the vertical component is:

Vy = -19

  • A vector 'v' with magnitude |v| and direction Ф can be written as:

v = |v| cos Ф i + |v| sin Ф j

As

|v|=38

Ф = 120°

Thus, the vector is

v = 38 cos 120° i + 38 sin 120° j

or

v = -19 i + 32.68 j

5 0
3 years ago
Mary drew a scale drawing of a campsite. The tent, which is 12 feet long in real life, is 4 inches long in the drawing. What is
Schach [20]

Answer:

1/36

Step-by-step explanation:

4*36=144

144/12=12

7 0
3 years ago
What is 6 divided by 7/9
Hunter-Best [27]

Answer:

54/7

Step-by-step explanation:

  1. Use the KCF method - Keep, Change, Flip
  2. 6 divided by 7/9 is just 6/1 divided by 7/9
  3. You can keep 6/1 as the way it is
  4. Next, you change the sign from division to multiplication
  5. Lastly, you flip 7/9 to 9/7
  6. It will now change from 6 divided by 7/9 to 6/1 x 9/7
  7. You now multiple 9 x 6 which is 54 and divide by 7
  8. You cannot simplify further so the answer is 54/7

PLEASE PICK ME AS THE BRAINLIEST

6 0
3 years ago
Read 2 more answers
Jerry has a miniature model of a boat. He knows that the boat is 3 3/4 inches wide and 5 1/2 inches long. What is the actual len
FromTheMoon [43]

Width of the miniature model = 3\frac{3}{4} inches

Length of the miniature model = 5\frac{1}{2} inches

The actual width of the boat = 15 feet

Let us find the actual length of the boat.

Write it in a proportion form.

width of model : length of model : : width of actual : length of actual

$\Rightarrow 3\frac{3}{4}:5\frac{1}{2}::15:x

$\Rightarrow\frac{15}{4}:\frac{11}{2}::15:x

$\Rightarrow\frac{\frac{15}{4}}{\frac{11}{2}} =\frac{15}{x}

Do cross multiplication.

$\Rightarrow{\frac{15}{4}x =15\times\frac{11}{2}

$\Rightarrow{\frac{15}{4}x =\frac{165}{2}

$\Rightarrow x =\frac{165}{2}\times{\frac{4}{15}

⇒ x = 22

Hence the actual length of the boat is 22 feet.

6 0
3 years ago
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