(PLEASE HELP!) A car travels 76 km due north and then 25 km due east.
(a) What is the cars current bearing from the starting point correct to the nearest degree?
(b) How far is the car from the starting point correct to the nearest km?
Answers
Answer:
Step-by-step explanation:
Look at the File I attached. The Question says that a car travels 76 km north then 25 km east. Now think of this as the Right angled triangle I attached in the file.
a) Bearing from the staring point to the means the degrees of the part i marked with a question mark.
Now SOH CAH TOA
76 km is the ADJACENT
25 km is the OPPOSITE
and x is the HYPOTENUSE
We have the values of the ADJACENT and the OPPOSITE.
Now see which rule has both, It is TOA(tan rule) which is:
tan(y) = OPPOSITE/ADJACENT (y is the degrees we will get)
tan(y) = 25/76 ( opposite of the degree we need is 25 and adjacent is 76)
tan inverse(25/76) = y (inverse will be given as to the power -1 on the calculator)
FINAL ANSWER OF (a) = 18.21°
b) This part is asking for the length of the hypotenuse, which i denoted as x in the attached file.
For this part, you will use the Pythagoras Theorem
Which is :
a² + b² = c²
Where c is the hypotenuse and a and b are the opposite and adjacent.
So
76² + 25² = x²
6401 = x²
√6401 = x
x = 80.01
Related Questions
4x-10=-6x-2 the value of x
Answers
Answer:
x = [tex]\frac{4}{5}[/tex]
Step-by-step explanation:
4x - 10 = - 6x - 2 ( add 6x to both sides )
10x - 10 = - 2 ( add 10 to both sides )
10x = 8 ( divide both sides by 10 )
x = [tex]\frac{8}{10}[/tex] = [tex]\frac{4}{5}[/tex]
A printing service charges a set-up fee of $10.00 for each order and 8 cents more for each copy. The total cost, C (in dollars), for an order of x copies is given
by the following function.
C(x) = 10.00 +0.08x
What is the total cost for an order of 50 copies?
Answers
Answer:
$14 for 50 copies.
Step-by-step explanation:
Given that,
→ C(x) = 10.00 + 0.08x
Then the cost for 50 copies will be,
→ C(50) = 10.00 + (0.08 × 50)
→ C(50) = 10.00 + 4
→ [ C(50) = $14 ]
Hence, the total cost of $14.
PLss answer
Given f(x) = 2x − 3 and g(x) = f(3x), which table represents g(x)?
Answers
The table which represents the function g(x) is: answer option A.
x g(x)
1 -3
2 3
3 9
What is a function?In Mathematics, a function can be defined as a mathematical expression which can be used to define and show the relationship that exist between two or more variables in a data set.
This ultimately implies that, a function typically shows the relationship between input values and output values of a data set, as well as showing how the elements in a table are paired (mapped).
When x = 1, the function f(x) is given by:
f(x) = 2x − 3
f(1) = 2(1) − 3
f(1) = 2 - 3
f(1) = -1.
Therefore, the function g(x) = f(3x) = 3 × -1 = -3.
When x = 2, the function f(x) is given by:
f(x) = 2x − 3
f(2) = 2(2) − 3
f(2) = 4 - 3
f(2) = 1.
Therefore, the function g(x) = f(3x) = 3 × 1 = 3.
When x = 3, the function f(x) is given by:
f(x) = 2x − 3
f(3) = 2(3) − 3
f(3) = 6 - 3
f(3) = 3.
Therefore, the function g(x) = f(3x) = 3 × 3 = 9.
In conclusion, the table which represents the function g(x) is as follows:
x g(x)
1 -3
2 3
3 9
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Answer: A
Step-by-step explanation:
rxl ontop
HELP EMERGCNY ILL MARK YOU BRAINLIST SHOW YOUR WORK
Answers
Answer:
3(c+30)+4(c+30), 7c + 210, 3c+90+4c+120
Step-by-step explanation:
I this helps :D
Answer:
I think it's the first one
Step-by-step explanation:
because he went to class 3 times a week and u would need to multiply 3 by c minutes + 30 minutes ( u have to add them to find the total amount of minutes he exercised during one class and multiply that by 3 after adding them together bc he did that class 3 times which means he did the exercise 3 times so u multiply) then u add that with next week where he went 4 times and did c minutes+ 30 minutes. HOPE THIS HELPS!
Please help me I’m very confused!!
Answers
first off let's keep in mind that an absolute value is really a ± equation in disguise, so |5x -4| can pretty much be rewritten as ±(5x - 4), so is a dual equation, let's solve both for "x".
[tex]|5x-4|\leqslant 3x\implies \pm(5x-4)\leqslant 3x \\\\[-0.35em] ~\dotfill\\\\ +(5x-4)\leqslant 3x\implies 5x-4\leqslant 3x\implies 2x-4\leqslant 0\implies 2x\leqslant 4 \\\\\\ x\leqslant \cfrac{4}{2}\implies {\LARGE \begin{array}{llll} x\leqslant 2 \end{array}} \\\\[-0.35em] ~\dotfill[/tex]
[tex]-(5x-4)\leqslant 3x\implies (5x-4)\stackrel{\stackrel{notice}{\downarrow }}{\geqslant} -3x\implies 8x-4\geqslant 0 \\\\\\ 8x\geqslant 4\implies x\geqslant \cfrac{4}{8}\implies {\LARGE \begin{array}{llll} x\geqslant \cfrac{1}{2} \end{array}}[/tex]
Check the picture below.
Grandma has one cup of sugar. How many dozen cookies will she be able to make?
Answers
Do the points (15, -12), (28,14), and (32,21) all lie on the same line? Be sure you can explain why or why not.
Answers
Choosing different pairs of points we got different slopes, then we conclude that the 3 points don't lie on the same line.
Do the points lie on the same line?Remember that if a line contains two points (x₁, y₁) and (x₂, y₂), then the slope of the line is:
a = (y₂ - y₁)/(x₂ - x₁)
Here the 3 points are on the same line if we get the same slope for any pair that we choose.
If we use the first two; (15, -12) and (28, 14), the slope is:
a = (14 - (-12))(28 - 15) = 8.67
If we use the second and third point (28, 14) and (32, 21), we get:
a = (21 - 14)/(32 - 28) = 6.125
We got different slopes, then we conclude that the 3 points don't lie on the same line.
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What is the slope of the line that passes through the points(−4,2) and (−5,0)?
Answers
Step-by-step explanation:
the slope is (y coordinate change / x coordinate change) when going from one point on the line to another.
the direction does not matter, but it is essential that once a direction is picked for one coordinate, we use the same one then also for the other.
I prefer to go from left to right, so (-5, 0) to (-4, 2) :
x changes by +1 (from -5 to -4).
y changes by +2 (from 0 to 2).
so, the slope is +2/+1 = 2/1 = 2.
7x + 3x + x⁴ divided by x-2 using long division
Answers
Answer:
10x + x^4/x-2
Step-by-step explanation:
Combine like terms
(10x + x^4)/(x-2)
find a formula for the general term an of the sequence, assuming that the pattern of the first few terms continuesm8, 0, 8, 0,
Answers
The formula for the general term and of the sequence is ±8.
What do we mean by sequence?A sequence in mathematics is an enumerated collection of objects in which repetitions are permitted and order is important. It, like a set, has members (also called elements, or terms). The length of the sequence is defined as the number of elements (which could be infinite). Unlike a set, the same elements can appear multiple times in a sequence at different positions, and the order does matter. Formally, a sequence can be defined as a function from natural numbers (the sequence's positions) to the elements at each position. The concept of a sequence can be expanded to include an indexed family, which is defined as a function from an index set that may or may not is numbered to another set of elements.To find the formula for the given sequence:
Given sequence: 8, 0, 8, 0, So, the formula cen be ±8.+8 to get the terms of odd numbers and -8 to get the terms of even numbers.Therefore, the formula for the general term and of the sequence is ±8.
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The ratio of rabbits to guinea pigs in a pet shop is 2:3. There are 12 rabbits in the pet shop. Circle the number of guinea pigs. 8 15 18 30
Answers
Answer: 18
Step-by-step explanation:
12 divided by 2 = 6
6 x 3 = 18
Answer:
the answer is 18
Step-by-step explanation:
this is because 12 divided by 2 = 6
6 x 3 = 18
which of the following is equivalent to 3^4 ? Which of the following is equivalent to 3^ 4 ?
12
81
7
64
Answers
81 is equivalent to 3^4
What Is the Power of a Number?
The power of a number stands for how many multiples of the number there are. The power of a number is represented by something called an exponent
When a number is "raised to the second power," it means that the number is multiplied together twice, for example. When a number is "raised to the fifth power," it means that it is multiplied together five times.
we have to solve 3^4
here 3 raised to the fourth power
then 3 is multiplied together 4 times
3*3*3*3
81
Hence ,81 is equivalent tp 3^4
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PLEASE CAN SOMEONE HELP ME I"M STUCK PLEASE I WOULD REALLY APPRECIATE!!
Answers
Answer:
Step-by-step explanation:
subsitute x with value given in bracket
a) f(1) = (1)² + 1 = 2
b) f(-3) = (-3)² + 1 = 10
c) f(b³) = (b³)² + 1 = b^6 + 1
d) f(x-1) = (x-1) +1 = x
The following is a list of P/E ratios (current stock price divided by company's earnings per share) for 17 companies. 57, 53, 50, 46, 42, 35, 31, 56, 52, 34, 34, 34, 30, 30, 55, 55, 51. Draw the histogram for these data using an initial class boundary of 29.5, an ending class boundary of 59.5, and 5 classes of equal width. Note that you can add or remove classes. Label each class with its endpoints.
Answers
The histogram for these data is given at the end of the answer.
What is an histogram?An histogram is a graph that shows the number of times each element of x was observed.
For this problem, there are 5 classes with a range of 30, as 59.5 - 29.5 = 30, hence the class width is of:
30/5 = 6.
From the data-set, we have that:
There are 7 values between 29.5 and 35.5.There are 0 values between 35.5 and 41.5.There are 2 values between 41.5 and 47.5.There are 4 values between 47.5 and 53.5.There are 4 values between 53.5 and 59.5.Considering this, the histogram is given at the end of the answer.
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Which fractions are equivalent to 0.4? Select all that apply.
Answers
Answer:
Step-by-step explanation:
2/5 or 4/10 or 8/20 or 16/40
The ratio of the number of footballs to the number of baseballs is, The ratio of the number of baseballs to the number of footballs i
Answers
Assume you have a list of numbers 12, 10, 32, 3, 66, 17, 42, 99, 20 write a loop that prints each of the numbers on a new line. python
Answers
Python is a computer programming language often used to build websites and software, automate tasks, and conduct data analysis. Python is a general-purpose language, meaning it can be used to create a variety of different programs and isn't specialized for any specific problems.
Python 3 code:
function to print the numbers in list
def print_list(List):
for entry in List:
print(entry)
function to print the numbers and squares in list
def print_squares(List):
for entry in List:
print("Square of ", entry, " = ", entry*entry)
Call the functions now
input_list = [12,10,32,3,66,17,42,99,20]
print_list(input_list)
print_squares(input_list)
Sample Output:
12 10 32 3 66 17 42 99 20 Square of 12 = 144 Square of 10 = 100 Square of 32 = 1024 Square of 3 = 9 Square of 66 = 4356 Square of 17 = 289 Square of 42 = 1764 Square of 99 = 9801 Square of 20 = 400
Python 2.7 code:
function to print the numbers in list
def print_list(List):
for entry in List:
print entry
function to print the numbers and squares in list
def print_squares(List):
for entry in List:
print "Square of ", entry, " = ", entry*entry
Call the functions now
input_list = [12,10,32,3,66,17,42,99,20]
print_list(input_list)
print_squares(input_list)
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Solve for the value of q. 780 (59+2)
Answers
Answer:
9222.23333 is the value good sir :)
Step-by-step explanation:
5q+80=180
Subtract 80 on both sides
5q 100
— = —
5 5
q=20
Choose the angle name JWT
Answers
The angle with the name JWT is option (b)
How to determine the angle with the name JWT?The name of the angle is given as
JWT
The above means that
Two lines JW and WT intersects at point W
The point of intersection of these lines is the name of the angle
From the list of given option, we have option (b) that has the above property
Hence, the angle with the name JWT is option (b)
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Sheila put $350 in a savings account for 1 year. The annual interest rate was 3% per year.
a) How much simple interest did the money earn her in 1 year?
b) How much money was in the account after 1 year?
Please answer fast and show how u got the answer step by step thank u
Answers
The simple interest was $10.5 and the amount after 1 year would be $360.5 in her account.
What is the simple interest?Simple interest is defined as interest paid on the original principal and calculated with the following formula:
S.I. = P × R × T, where P = Principal, R = Rate of Interest in % per annum, and T = Time, usually calculated as the number of years. The rate of interest is in percentage r% and is to be written as r/100
We have been given data as
Principal amount (P) = $350
Time (T) = 1 year
The rate of interest (R) = 3%
Simple interest= P × R × T
Simple interest = 350 × 3/100 × 1
Simple interest = $10.5
So the amount after 1 year would be P + S.I. = 350 + 10.5 = $360.5
Therefore, the simple interest would be $10.5 and the amount after 1 year would be $360.5.
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A truck enters a highway driving 60 mph. A car enter the highway at the same place 14 minutes later and drives 67 mph in the same direction . From the time the car enters the highway, how long will it take the car to pass the truck
Answers
Time taken by car to pass the truck in the same direction from the time the car enters the highway is approximately12.54 minutes with a truck speed 60mph and a car 67mph.
As given in the question,
Speed of a truck=60mph
⇒60 minutes = 60miles
⇒14 minutes = (60/60)×14
= 14 miles
Car speed =67mph
67 miles=60minutes
⇒1miles = (60/67) minutes
⇒14miles = (60/67)×14
≈12.54 minutes (approximately)
Therefore, time taken by car to pass the truck in the same direction from the time the car enters the highway is approximately12.54 minutes with a truck speed 60mph and a car 67mph.
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Givien f(x) = 5x+4, solve for x when f(x) = -6.
Answers
Answer: -26
Step-by-step explanation:
5 x -6 = -30
-30 + 4 = -26
5(-6) + 4 = -26
PLEASE SOLVE THIS FOR MEEEE<333
Answers
8 x 10^5 = 800,000
4x 10^3 = 4000
800,000 divided by 200 = 4000
YALL IS ANYONE WILLING TO SOLVE MATH?
Answers
Answer:
A = 1160
B = 1160 is already in standard form.
C = 1200
I need help please ASAP !!!
A Baby mango tree stands 2.6 meters above the ground. Its roots extend 7/5 meters below the ground.
Which of the following expressions represents the vertical distance between the top of the mango tree and the tips of its roots?
Choose 1 Answer:
A. ( 2.6 - 7/5 )
B. ( 7/5 - 2.6 )
C. None of the above
Answers
The expressions that represents the vertical distance between the top of the mango tree and the tips of its roots is C. None of the above.
How to calculate the distance?It should be noted that the mango tree stands 2.6 meters above the ground. Its roots extend 7/5 meters below the ground.
In this case, the vertical distance will simply be the difference between the values that are given.
This wasn't written on this case.
Therefore, the correct option is C.
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Select the correct answer.
Jonathan has 30 chocolates. He gives some chocolates to his friend David. He then gives Sarah half the number of chocolates that he gave David and gives Lily two-thirds of what he gave David. After giving away the chocolates, Jonathan has 4 chocolates left. If the number of chocolates Jonathan gives David is x, which equation represents the situation? How many solutions does this equation have?
A. x + 1/2x + 2/3x = 30 - 4, which has no solution
B. x + 1/2x + 2/3x = 30, which has infinitely many solutions
C. x + 1/3x + 2/3x - 4 = 30, which has one solution
D. x + 1/2x + 2/3x +4 = 30, which has one solution
E. 1/2x + 2/3x = x - 4, which has no solution
Answers
I hope it is correct?
Answer: C, I think is correct
which of the following situations best descrbies a student engaged in active learing 1. A student uses only one of the resources provided by the teacher 2. A student skips parts of lessons that she find difficult 3. A student records questions to ask the teacher about a concept 4. A student does not discuss math outside of lessons.
Answers
Answer:1.c 2.b 3.a
Step-by-step explanation:
Simplify this expression
12g+9g
Answers
Answer:
21g
Step-by-step explanation:
12 + 9 = 21 then add the variable.
After Simplify this expression 12 g + 9 g. We get, 21g.
To simplify this expression
12 g + 9 g,
Add ( 12 + 9) ,which is 21
So, 12 g + 9 g = 21 g.
Therefore, the final answer is 12 g + 9 g = 21 g.
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please help with 7, 9 and 11!! i am stuck on problems
Answers
7) (x, TU, TB) = (4, 8, 13)
9) (x, RS, MN) = (8, 41, 41)
11) (AB, BC, AC) = (42, 42, 84)
What are the values of the variable x and the lengths of the line segments?
In this question we have three cases of colinear line segments, each of them can be solved by using definitions from Euclidean geometry and algebraic handling:
Case 7 - TU = 2 · x, UB = 3 · x + 1, TB = 21
TB = TU + UB
21 = 2 · x + 3 · x + 1
21 = 5 · x + 1
5 · x = 20
x = 4
Then, the lengths of each line segment are:
TB = 21
TU = 2 · 4
TU = 8
UB = 3 · 4 + 1
UB = 13
The solutions are (x, TU, TB) = (4, 8, 13).
Case 9 - RS = 3 · x + 17, MN = 7 · x - 15
RS = MN
3 · x + 17 = 7 · x - 15
4 · x = 32
x = 8
And the lengths of each line segment are:
RS = MN = 41
The solutions are (x, RS, MN) = (8, 41, 41).
Case 11 - AB = 2 · x - 8, BC = x + 17
AB + BC = AC
AB = BC
2 · x - 8 = x + 17
x = 25
And the lengths of each line segment are:
AB = 2 · 25 - 8
AB = 42
BC = AB
BC = 42
AC = 42 + 42
AC = 84
The solutions are (AB, BC, AC) = (42, 42, 84).
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1. Jake reads the following problem: If the original scale factor for a scale drawing of a square swimming pool is 1/90, and the length of the original drawing is measured to be 8 inches, what is the length on the new scale drawing if the scale factor of the new scale drawing length to actual length is 1/144? He works out the problem: 8 inches ÷ 1/90 = 720 inches 720 inches× 1/144 = 5 inches Is he correct? Explain why or why not.
Answers
Yes Jake is correct we the scales are accurately represented.
How to calculate the value?From the information, the original scale factor for a scale drawing of a square swimming pool is 1/90, and the length of the original drawing is measured to be 8 inches.
Therefore, the original length will be:
= 8 ÷ 1/90
= 8 × 90
= 720 inches
Therefore, Jack is correct.
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