The distance of the boat is 191.2 miles, 12.8° and N12.8E from the original location.
Using Trignometry to find the boat's distance:To calculate the distance, direction angle, and bearing of the boat from its original location, we will need to use trigonometry to determine the final position of the boat.
a) The distance traveled in the eastward direction is 130 miles. Then, using the bearing of N38E, we can calculate the northward and eastward distances traveled in the second leg of the journey. The bearing of N38E can be thought of as an angle of 38 degrees measured clockwise from due east.
Using trigonometry to calculate the northward distance traveled, we have,
(72 miles) * (sin 38°)
= 36 miles
And the eastward distance traveled is (72 miles) * (cos 38°)
= 59.04 miles.
The final position of the boat is at a distance can be calculated by:
130 miles east + 59.04 miles east
= 189.04 miles east and 36 miles north from the original location.
b) To find the distance from the original location, we use the Pythagorean theorem,
d = [tex]\sqrt{189.04^{2} +36^{2} }[/tex]
d = 191.2 miles
To find the direction angle, we use arctan(north/east) = arctan(36/189.04) = 12.8°
Bearing is the direction angle measured clockwise from north. So, bearing = 12.8°
Hence, the final position of the boat is 191.2 miles, 12.8°, and N12.8E from the original location.
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What is the opposite inverse of 4?
4 is the additive inverse of -4.
OR
The opposite of 4 is -4, or negative four.
Now, According to the question:
Opposite numbers:-
Every number has an opposite. In fact, every number has two opposites: the additive inverse and the reciprocal—or multiplicative inverse. Don't be intimidated by these technical-sounding names, though. Finding a number's opposites is actually pretty straightforward.
If a number is added to its additive inverse, the sum of both the numbers becomes zero.
For any given number, the additive inverse is a number or a value which when added to the original number results in zero.
Mathematically: a + (-a) = 0
So here, 'a' and '-a' are the additive inverses of each other.
Therefore, for 4, the additive inverse is 4 = -4
Thus, 4 is the additive inverse of -4.
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Angle of elevation please help if you know .tysm
Answers:
Y = 176.0 feetX = 128.7 feetNote: Your teacher may not want you to type "feet" into the answer boxes.
=============================================================
Explanation:
The tree's shadow is 120 ft long, so it's the length of the horizontal side of the triangle. With regard to the reference angle (47 degrees), this 120 ft side is adjacent to the angle because it's as close as possible to the angle. That means the X is the opposite side of the reference angle.
The Y side is the longest side. It's the hypotenuse. The hypotenuse is always the longest side and always opposite the largest angle of a right triangle (so it's always opposite the 90 degree angle).
-------------
To find Y, we'll use the cosine rule
cos(angle) = adjacent/hypotenuse
cos(47) = 120/Y
Y*cos(47) = 120
Y = 120/cos(47)
Y = 175.9535 .... make sure your calc is in degree mode
Y = 176.0
When rounding to the nearest tenth, the second '5' will bump that 9 up to 10, which then carries over and why 175 bumps up to 176.
The distance from the tip of the tree to the tip of the shadow is roughly 176 feet.
-------------
We can use the tangent rule to find X
tan(angle) = opposite/adjacent
tan(47) = X/120
120*tan(47) = X
X = 120*tan(47)
X = 128.6842
X = 128.7
The tree is roughly 128.7 feet tall
This is somewhere between a 12 story and 13 story building assuming each story is 10 ft (since 12 stories = 12*10 = 120 ft, and 13 stories = 130 ft).
Calculate the perimeter of a right angled triangle with base 24m and height 7m
Step-by-step explanation:
there are a few things from school everybody has to burn into their brains for life. one of them : Pythagoras for right-angled triangles :
c² = a² + b²
c is the Hypotenuse (the triangle side opposite of the 90° angle), a and b are the triangle legs.
now, it depends on what you teacher agreed with you regarding naming the sides of such a triangle.
sometimes "base" is the Hypotenuse (baseline), sometimes it is one of the legs, and then the height is the second leg (as the legs are standing at a 90° or right angle at each other).
we have to assume the second one, as for the first one we have not enough information to solve the question (because with just a given Hypotenuse and the height to the Hypotenuse we can draw infinitely many different triangles with different perimeters).
so, we have
Hypotenuse² = 24² + 7² = 576 + 49 = 625
Hypotenuse = sqrt(625) = 25 m
the perimeter of the triangle is then
25 + 24 + 7 = 56 m
The six sides of a number cube are labeled 1,2,3,4,5,and six you flip a coin and roll the number cube what is the theoretical probability that the coin lands on heads and u roll the cube and the number is less then 5. Write your answer as a fraction
The theoretical probability that the coin lands on heads and roll the cube and the number are less than 5 is 1/3.
What is an event?
An event is a collection of experiment results (a subset of the sample space) to which a probability is ascribed in probability theory.
There are 6 faces of a cube.
The numbers less than 5 on a cube are 1, 2, 3, 4.
The number of favorable outcomes is 4.
The total number of outcomes is 6.
The probability of getting less than 5 is
favorable outcome/ total number of outcomes = 4/6 = 2/3.
The number of faces of a coin is 2.
The number of heads of a coin is 1.
The probability of getting head is 1/2.
The probability of getting less than 5 in a roll and head in the coin is
2/3 × 1/2 = 1/3.
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Please help I beg of you
Answer:
ok so the answer is 191.4250159
Step-by-step explanation:
you use this C = 2√πA to solve. I hope this helps!
Helpppppppppp pleaseeee
The sides of a triangle are 68, 61, and 46. Use the Pythagorean Theorem to determine if the triangle is right, acute, or obtuse.
The triangle is an acute triangle using the Pythagorean theorem.
What is the Pythagorean theorem?Pythagorean theorem states that in a right triangle, the square of the hypotenuse is equal to the sum of the squares of the other two sides.
We have,
The sides of a triangle are 68, 61, and 46.
Note:
When the sum of the squares of two sides of a triangle is equal to the square of the hypotenuse, the triangle is a right triangle.
When the sum of the squares of two sides of a triangle is less than the square of the hypotenuse, the triangle is an obtuse triangle.
When the sum of the squares of two sides of a triangle is greater than the square of the hypotenuse, the triangle is an acute triangle.
Now,
68² = 4624
46² = 2116
61² = 3721
We see that,
We can never have a right triangle or an obtuse triangle.
The possible combination.
61² + 68² > 46²
61² + 46² > 68²
68² + 46² > 61²
Thus,
The triangle is an acute triangle.
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A bird flew from the ground onto a tree branch 5 feet above the ground.What could the bird do next that would make this situation a model of combining a number and its additive inverse
We are given that A bird flew from the ground onto a tree branch 5 feet above the ground.
We are supposed to find What could the bird do next that would make this situation a model of combining a number and its additive inverse
Additive inverse - What you add to a number to get zero is additive inverse.
The negative of a number.
Now we are told What could the bird do next that would make this situation a model of combining a number and its additive inverse
Since it already flew 5 feet above the ground .
Additive inverse of 5 feet is -5 feet
So, to make the situation of combining a number and its additive inverse
Bird has to flew 5 feet return to the ground i.e.-5 feet
So, a model of combining a number and its additive inverse = 5+(-5)
= 0.
Fly down 5 feet and return to the ground.
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Answer:
Fly down 5 feet and return to the ground.
Step-by-step explanation:
have a nice day.
he distance traveled is three times the number of hours I have hiked. The independent variable is hours. The dependent variable is distance.b.The distance traveled is three times the number of hours I have hiked. The independent variable is distance. The dependent variable is hours..c.The hours I have hiked is three times the distance. The independent variable is distance. The dependent variable is hours.d.The hours I have hiked is three times the distance. The independent variable is hours. The dependent variable is distance.
The option a "The distance traveled is three times the number of hours I have hiked. The independent variable is hours. The dependent variable is distance." is correct.
In the given question, we have to write a statement that describes how the distance that you travel is determined. Then identify the independent and dependent variables of this function.
As we know that the distance formula is the multiplication of of speed and time.
So, the distance traveled is three times the number of hours I have hiked. The independent variable is hours. The dependent variable is distance.
So the option a is correct.
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The complete question is:
The distance you travel while hiking is a function of how fast you hike and how long you hike at this rate. You usually maintain a speed of three miles per hours while hiking. Write a statement that describes how the distance that you travel is determined. Then identify the independent and dependent variables of this function.
a. The distance traveled is three times the number of hours I have hiked. The independent variable is hours. The dependent variable is distance.
b. The distance traveled is three times the number of hours I have hiked. The independent variable is distance. The dependent variable is hours.
c. The hours I have hiked is three times the distance. The independent variable is distance. The dependent variable is hours.
d. The hours I have hiked is three times the distance. The independent variable is hours. The dependent variable is distance.
How many 2/3s are in 2?
On solving the provided question we can say that - in fractions 2/3 and 2 we can do 2/3X2 = 4/3
what is fraction?Any number of equal portions, or fractions, can be used to represent a whole. Fractions in standard English indicate how many units of a certain size there are. 8, 3/4. A whole includes fractions. The ratio of the numerator to the denominator is how numbers are expressed in mathematics. Each of these is an integer in simple fractions. In the numerator or denominator of a complex fraction is a fraction. True fractions have numerators that are less than their denominators. A fraction is a sum that constitutes a portion of a total. By breaking the entire up into smaller bits, you can evaluate it. Half of a full number or item, for instance, is represented as 12.
here,
in the given fractions 2/3 and 2/1,
we can do that -
2/3 X 2/1 = 4/3
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what is the perimeter of the triangle?
Answer:
the picture is messed up
Step-by-step explanation:
Answer:
34?
Step-by-step explanation:
P=a+b+c=10+12+12=34
Denise dusted a square tabletop with an area of 36x^16y^4 units write an expression to represent one side length of the table top
The length of the side of the table top as calculated from the given data will be 6x⁴y².
To calculate the area of the table top we will have to square of the sides given .
area =(36x.16y^4 )²
side =√(36x.16y^4 )²
= 6x⁴y².
In mathematics the product of a number multiplied by itself is considered to be its square. Eg.) 6 multiplied by 6 gives 36 which is known as its square.
The given table is square in shape and hence its area will be given my multiplying its side with itself.
Area of a square = side x side.
To find its length we can simply find the square root of the number.
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If it takes 9 hours to travel from North Carolina to Florida driving an
average speed of 55 mph, about how long will it take to travel from North
Carolina to Florida driving an average speed of 70 mph?
Time taken to travel from North Carolina to Florida driving an average speed of 70 mph is 7 hours.
What is the typical speed?Calculating average speed involves dividing the total distance traveled by the total time it took to cover that distance.
Given,
Time taken to travel = 9hours
average speed =55 mph
distance between North Carolina to Florida = speed x distance
distance= 55 x 9
distance= 495 miles
if driving at speed of 70 mph
time taken = distance/speed
time taken=495/70
time taken=7 hours
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Do the following lengths form a right triangle?
6
8
9
Answer:
No
Step-by-step explanation:
You can check using pythagoras theorem
Evaluate each expression when a = -4 and b = 3.
Expression: 2a + 3b
Answer:
1
Step-by-step explanation:
2a +3b
let a=-4 and b=3
2(-4) +3(3)
Multiply
-8 +9
Add
1
I have to try and find the volume of the cone
Answer:
1,282.2 m³
Step-by-step explanation:
We'll use the formula 1/3*(B*h)
First, you have to find the area of the base
formula: πr²
radius: 7
7*7= 49
49*3.14=153.86
Now, multiply 153.86 by 25 (the height)
153.86*25= 3,846.5
Lastly, divide 3,846.5 by 3 and get 1,282.2 rounded
write the frraction 7/14 in simplest form
Answer:
To find the simplest form is to find a number than can evenly go into both numbers. 7/14=1/2. 1/2 as you can divide 7 into 7 one time and 7 into 14 twice. A half (1/2). Because 7 is the half of 14, so the simplest form is 1/2. At first look you think it's already in its simplest form, but
explanation:
[tex]\huge\text{Hey there!}[/tex]
[tex]\mathsf{\dfrac{7}{14}}\\\\\\\mathsf{= \dfrac{7\div7}{14\div7}}\\\\\\\mathsf{= \dfrac{1}{2}}\\\\\\\\\\\huge\text{Therefore, your answer should be:}\\\huge\boxed{\mathsf{\dfrac{1}{2}}}\huge\checkmark[/tex]
[tex]\huge\text{Good luck on your assignment \& enjoy your day!}[/tex]
I NEED HELPPPPPPP
Anita needs to construct ten cones for a class project. How many square feet of material will she need? Use 3.14 for π. Enter your answer in the box.
Answer:
Since she needs 10 cones:
10 * 116.52 sq. ft = 1,165.2 sq ft.
She will need 1,165.2 sq ft of material.
Step-by-step explanation:
Find the area of a circle with a radius 8 m
Answer:
area of circle=πr²22/7×825.14m²hope it helps.Answer:
area of circle = πr²
22/7×8
25.14m² is the answer of your question
hope it is helpful to you
In ΔABC, if AB = BC and
Answer: not enough to answer
Can some one help me with this question its hard :( down below ill give brainliest
Answer:
C. 1
Step-by-step explanation:
I got this right on my test
One line passes through the points (-4, 2) and (0,3); another line passes through the points
(-3,-2) and (3,2). Are these lines parallel, intersecting, perpendicular, or identical?
I WILL GIVE YOU BRAINLIEST
PLEASE HELP
Using this method solve this for me
A = P(1+r/n)^(n)(t)
- Write an equation to model the value of the stock investment after t months.
Use this rule to fill in the table.
Rule: Subtract 6 from the input to get the output.
Answer:
1= 1
2=11
3=7
Step-by-step explanation:
subtract 6 from the input so
7-6=1
11-6=5 so input 11
13-6=7
7) Three-fifths of a hotel's rooms are occupied. An additional 23 rooms are reserved. A total of 127 rooms are being remodeled. How many total rooms are in the hotel?
Answer:
375
Step-by-step explanation:
- 150 rooms total unoccupied
- 3/5 occupied
this means that 150 rooms is 2/5 of the total, and 150 is 2/5 of 375, so 375 total
Answer:
375
Step-by-step explanation:
First of all, let's consider the following points;
●3/5 of the rooms are occupied
●23 rooms are being reserved
●127 rooms are being remodeled
The keyword is the 1st point.
If 3/5 is occupied, then that means 5/5 or 5 parts are the fraction of all the hotel rooms.
So,
127+23= 150 rooms
5/5 - 3/5 = 2/5
Now let's apply the direct proportion rule;
2/5= 150
1/5= 150÷2= 75
5/5 (total)= 75*5=375
If the whole fraction things make you confused, here's an easier way;
2 parts= 160
1 part= 150÷2=75
5 Parts = 75*5= 375
Hope it helps :-)!
A certain movie is 105 minutes long. It started at 6:15 pm. During the movie, there were two commercial breaks, one lasting 9
minutes and one lasting 6 minutes. At what time did the movie finish?
Answer: 8:15pm
Step-by-step explanation:
9+6=15 +105 = 120, 120/60=2 hours (total duration), 6:15 + 1 hour = 7:15 + 1 hour = 8:15pm
HELP PLEASE!! this is 8th grade math btw
Answer:
the 2nd one
Step-by-step explanation:
Which values of x are solutions of the equation below
1/x-4 + x/x-2=2/x^2-6x+8
X=-1
X=-1,4
X=2
X=2,4
Answer:
x = 3.3 and -0.3
Step-by-step explanation:
Given the expression
1/x-4 + x/x-2=2/x^2-6x+8
Find the LCM
x-2+x(x-4)/(x-4)(x-2) = 2/x^2-6x+8
Since the denominator, are the same they cancels out
x +1 + x(x-4) = 2
x+1 + x²-4x = 2
x²-3x + 1 - 2 = 0
x² - 3x - 1 = 0
Factorize
x =3±√9+4/2
x =3±√13/2
x = 3±3.6/2
x= 6.6/2 and -0.6/2
x = 3.3 and -0.3
Answer:
its -1 trust me I used another website to answer this question
Step-by-step explanation:
I took the diagnostic also
What type of a polynomial is 4 2x3?
The polynomial 4 2x3 is a degree 3 polynomial, also known as a cubic polynomial.
What is polynomial?Polynomial is an expression consisting of variables, constants, and coefficients. It is an algebraic expression that can contain exponents, fractions, multiplication, addition, and subtraction. Polynomials are used to model many real-world situations, such as the volume of a cylinder or the area of a triangle. The degree of the polynomial is determined by the highest exponent of the variables in the expression. Polynomials can be divided, factored, and manipulated using the rules of algebra.
It consists of three terms and its general form is
ax³ m + bx² + cx + d, where a, b, c, and d are constants
and x is the variable. In this case,
a = 4, b = 2, c = 0 and d = 0,
so the polynomial is 4x³ + 2x².
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What is the slope of the line passing through the points − 3 4 and 2 − 1?
Therefore, the slope of the line passing through the points (-3,4) and (2,-1) is -1
What is a Straight Line?
A line is an object in geometry that is indefinitely long and has neither breadth nor depth nor curvature. Since lines can exist in two, three, or higher-dimensional environments, they are one-dimensional things. The term "line" may also be used to describe a line segment in daily life that contains two locations that serve as its endpoints.
Define Slope.A line's steepness may be determined by looking at its slope. The slope is computed mathematically as "rise over run" (change in y divided by change in x). Also, The slope of a line is known as "m", is the ratio of the change in the y-coordinate to the change in the x-coordinate of two points on the line.
To find the slope of a line passing through the points (-3,4) and (2,-1), we can use the formula:
m = (y2 - y1) / (x2 - x1)
where (x1, y1) and (x2, y2) are the coordinates of the two points.
So, using the given points:
m = (-1 - 4) / (2 - (-3))
m = -5 / 5
m = -1
Therefore, the slope of the line passing through the points (-3,4) and (2,-1) is -1
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