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Dvinal [7]
2 years ago
5

A ship at position (1, 0) on a nautical chart (with north in the positive y direction) sights a rock at position (4, 7). What is

the vector joining the ship to the rock?
What angle θ does this vector make with due north? (This is called the bearing of the rock from the ship. Round your answer to two decimal places.)
Mathematics
1 answer:
PilotLPTM [1.2K]2 years ago
3 0

Answer:

  • (3, 7)
  • 23.20°

Step-by-step explanation:

The vector in component form is the difference of the coordinates of its end points:

  rock - ship = (4, 7) - (1, 0) = (3, 7) . . . . vector from ship to rock

__

The angle from North can be found using the tangent relation:

  tan(bearing) = (east distance)/(north distance) = 3/7

  bearing = arctan(3/7) ≈ 23.1986°

The bearing of the rock is 23.20°.

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EleoNora [17]

Answer:

you subtract x-7

Step-by-step explanation:

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2 years ago
A popcorn container is the shape of an inverted cone. It is 9 inches tall, and the circular opening has a diameter of 4 inches.
stealth61 [152]

Answer:

<u>The volume of the container is 37.7 cubic inches and the equation is π * r² * h/3, where r is the radius and h is the height of the cone.</u>

Step-by-step explanation:

Let's recall that the formula for finding out the volume of a cone is:

Volume of a cone = π * r² * h/3

Replacing with the real values, we have:

diameter = 4 inches ⇒ radius = 2 inches

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5 0
2 years ago
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Javier writes an integer on a piece of paper. The absolute value of his number is less than 4. Which is true of the possible val
mrs_skeptik [129]

Answer:

3, -2, -1, 0, 1, 2, 3

Step-by-step explanation:

Given the inequality expression |x| < 4 where x is unknown. To her the possible values of x, we must undeterstand that the absolute value of a number returns both positive and negative value.

Hence |x| can either return +x or -x

If x is positive, the inequality expression will be x<4.

If the value of x is negative, then -x<4

From -x<4

Multiply both sides by minus sign will change the sense of the inequality sign.

-(-x) > -4

x>-4

If x is greater than -4, then -4<x.

Combining both inequality will give;

-4 < x and x<4

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Hence the possible values of Javier's number are integers between -4 and 4.

The values are -3, -2, -1, 0, 1, 2, 3.

4 0
2 years ago
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timurjin [86]

Answer:

4=10-n

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Because for the first one instead of subtracting 10-n you will subtract 10-4, which is 6 so that one and for the second one you would do the inverse of division and multiply 3x2and get 6 and then for the fourth one you will divide 8/48 and get 6

Hoped this helped!!! Have a Great Day!!! Pls give me BRAINLIEST!!

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Dominik [7]
Inequality:
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Answer:
5x - 3 <span>≤ 28
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