1. P, Q and R are three buildings. A car began its journey at P, drove to Q, then to R and returned to P. The bearing of Q from P is 058º and R is due east of Q. PQ = 114 km and QR = 70 km. © Draw a clearly labelled diagram to represent the above informationen on the diagram TƏRund (a) the north/south direction (b) the bearing 058° (c) the distances 114 km and 70 km. (ii) Calculate (a) the measure of angle POR (b) the distance PR [3] (c) the bearing of P from R [3]
Answers
Step 1
Given;
[tex]\begin{gathered} The\text{ bearing of Q from P is 058}^o\text{ } \\ R\text{ is due east of Q} \\ PQ=114km \\ QR=70km \end{gathered}[/tex]Step 2
Draw the diagram
Step 2
Calculate the measure of angle PQR
[tex]\angle PQR=58+90=148^o[/tex]This is because using alternate exterior angles are equal theorem, the first part of angle Q 58 degrees. Since R is due east of Q, then the other part must be 90 degrees, when summed we get 148 degrees
Step 3
Calculate the distance PR. To do this we will use the cosine rule
[tex]\begin{gathered} PR^2=PQ^2+QR^2-2PQ\left(QR\right?cosQ \\ PR^2=114^2+70^2-2\left(114\right)\left(70\right)cos\left(148\right) \\ PR^2=17896+13534.84761 \\ PR=\sqrt{31430.84761} \\ PR=177.2874717 \\ PR\approx177.3km\text{ to the nearest tenth} \end{gathered}[/tex]Step 4
Calculate the bearing of P from R.
Use sine rule and find angle R
[tex]\frac{sin\text{ 148}}{177.2874717}=\frac{sinR}{114}[/tex][tex]\begin{gathered} 114sin148=177.2874717sinR \\ R=\sin^{-1}\frac{\mleft(114sin148\mright)}{177.2874717} \\ R=19.92260569 \end{gathered}[/tex]The bearing of P from R = (90-angle R)+90+90=250 degrees approximately to the nearest whole number
[tex]\begin{gathered} =\left(90-19.92260569\right)+90+90 \\ =250.07739 \\ \approx250^o \end{gathered}[/tex]The bearing of P from R =250 degrees approximately to the nearest whole number
Related Questions
Study PathsTestPlacement Test Williston State College 2018 Study PathTestInit: GeometryogressQuestion ID: 1191695The movement of the progress bar may be uneven because questions can be worth more or less (including zero) depending on your answerFind the circumference of a circle with a diameter of 13 meters. Use 3.14 as an approximation for E. Round your answer to thenearest whole meter. Enter only the numberThe solution isSubmitPassDon't know answerSave and close
Answers
Explanation:
The question wants us to obtain the circumference of the circle given that the diameter of the circle is 13 meters.
To do so, we will use the formula:
[tex]\begin{gathered} Circumference=\pi D \\ Where \\ \pi=3.14 \\ D=diameter=13\text{ meters} \end{gathered}[/tex]Therefore, the circumference will be
[tex]Circumference=3.14\times13=40.82\text{ }meters[/tex]Rounding off to the nearest whole number, we will have 41 meters
About 13 out of 20 homes have a personalcomputer. On a street with 60 homes, howmany would you expect to have a personalcomputer?
Answers
Answer:
On a street with 60 homes, the number of homes expected to have a personal computer is;
[tex]39\text{ }[/tex]Expected
Given that;
About 13 out of 20 homes have a personal computer.
It means that;
[tex]\frac{13}{20}\text{ PC/home}[/tex]Out of 60 homes, the expected number of homes with PC is;
[tex]\begin{gathered} n=\frac{13}{20}\times60 \\ n=39 \end{gathered}[/tex]Therefore, On a street with 60 homes, the number of homes expected to have a personal computer is;
[tex]39\text{ }[/tex]About how far does the flag have to travel to complete full rotation?1. 37.68 ft2. 75.36 ft3. 150.72 ft4. 452.16 ftPlease explain if possible!
Answers
Due to the circular shape, one complete rotation of the flag is equal to the circumference of a circle with radius 12 ft.
Then, use the following formula for the cirumference:
C = 2π·r
where r is the radius. In this case, r = 12 ft and π = 3.14. Replace the previous values into the formula for C:
C = 2(3.14)(12 ft)
C = 75.36 ft
Hence, the flag has to travel 75.36 ft to complete a full rotation
Find the ordered pairs for the x- and y-intercepts of the equation 8x - 2y = 16 and select the appropriate option below. The x-intercept is (-2, 0), the y-intercept is (0, 8). The x-intercept is (0, 2), the y-intercept is (-8, 0). The x-intercept is (2, 0), the y-intercept is (0, -8). The x-intercept is (0, -2), the y-intercept is (8, 0).
Answers
The given equation is
[tex]8x-2y=16[/tex]To find the x-intercept, we make y = 0.
[tex]\begin{gathered} 8x-2\cdot0=16 \\ 8x-0=16 \\ 8x=16 \\ x=\frac{16}{8} \\ x=2 \end{gathered}[/tex]Hence, the x-intercept is (2,0).To find the y-intercept, we make x = 0.
[tex]\begin{gathered} 8\cdot0-2y=16 \\ 0-2y=16 \\ -2y=16 \\ y=-\frac{16}{2} \\ y=-8 \end{gathered}[/tex]Hence, the y-intercept is (0,-8).Could you please help me with this? I need to solve it.
Answers
Given: ( -100 ) + ( -4 ) + ( -2 + 6) ( 3 )
Required: Evaluation
Explanation:
We shall here use BODMAS rule.
First solve the brackets and the addition and subtraction
[tex]\begin{gathered} (-100)+(-4)+(-2+6)(3) \\ =-100-4+(4)(3) \end{gathered}[/tex]Further,
[tex]\begin{gathered} =-100-4+12 \\ =-104+12 \end{gathered}[/tex]Solving
[tex]-104+12=-92[/tex]Final Answer:
[tex]-92[/tex]I will share a photo of the question it is to complicated to right
Answers
Answer : 6
We are given the above fraction to be
[tex]\frac{3}{4}\text{ divided by }\frac{1}{8}[/tex][tex]\begin{gathered} To\text{ proc}eed\text{ with this expression, we n}eed\text{ to find the reciprocal of }\frac{1}{8} \\ \text{Hence, the reciprocal of }\frac{1}{8}\text{ is 8} \\ \frac{3}{4}\text{ x }\frac{8}{1} \\ =\text{ }\frac{3\text{ x 8}}{4} \\ =\text{ }\frac{24}{4} \\ =\text{ 6} \end{gathered}[/tex]The answer is 6
Before you can change a division operator to a multiplication operator, we need to find the reciprocal of the left hand side fraction
The fraction at the left hand side is 1/8
The reciprocal of 1/8 is 8
i need help please with m and b#1 and graph
Answers
ANSWER
• m = 2
,• b = -5
EXPLANATION
This equation is written in slope-intercept form,
[tex]y=mx+b[/tex]Where m is the slope and b is the y-intercept.
In this case, the slope is m = 2 and the y-intercept is b = -5. This tells us that the line intersects the y-axis at y = -5, so that is our first point. Then, we can find the next point using the slope,
[tex]m=2=\frac{\Delta y}{\Delta x}[/tex]The next point is 1 unit to the right of the y-intercept, and 2 units up,
To draw a line we only need two points, so we have to draw a line passing through these two points.
2. What is the equation of the line that passes through (5, 2) and isperpendicular to y =10x + 7?AC.y10x +yX+1021y = 10x - 4810B.-+52+52D.
Answers
Step 1
Given; What is the equation of the line that passes through (5, 2) and is
perpendicular to y =
10x + 7?
Step 2
The slope of the given line is;
[tex]\begin{gathered} m=10 \\ since,\text{ when we compare y=mx+b} \\ m=10 \end{gathered}[/tex]Slope of perpendicular lines have the following relationship;
[tex]\begin{gathered} m_1=-\frac{1}{m_2} \\ 10=-\frac{1}{m_2} \\ m_2=-\frac{1}{10} \end{gathered}[/tex]Therefore the required equation will be in the form of;
[tex]\begin{gathered} y=-\frac{1}{10}x+b \\ y=2 \\ x=5 \end{gathered}[/tex]Find b, the y-intercept
[tex]\begin{gathered} 2=-\frac{1}{10}(5)+b \\ 2=-\frac{1}{2}+b \\ 4=-1+2b \\ 2b=5 \\ b=\frac{5}{2} \end{gathered}[/tex]Thus the answer will be; Option B
[tex]\begin{gathered} y=-\frac{1}{10}x+\frac{5}{2} \\ \\ \\ \\ \end{gathered}[/tex]
9. A coin is tossed and a number cube is rolled. What is the probability of getting tails and rolling a two?
Answers
Okay, here we have this:
Considering the provided information, we are going to calculate the requested probability, so we obtain the following:
Probability of getting tails and rolling a two=Probability of getting tails * Probability of getting a two
And basing ourselves on the fact that when tossing a coin there are two possible events and in this case a favorable one, and when tossing the die there are 6 possible events and one favorable for this case, we have:
Probability of getting tails and rolling a two=1/2*1/6
Probability of getting tails and rolling a two=1/12
Finally we obtain that the probability of getting tails and rolling a two is 1/12.
I need help with this math question all parts pleasePart 2: find y-interceptPart 3: find the zerosPart 4: Graph k(x)
Answers
Given the following function:
[tex]k(x)=x^3-5x^2[/tex]We will find the end behavior of the function.
the given function has a degree = 3 (odd)
And the leading coefficient is positive
the end behavior will be as follows:
[tex]\begin{gathered} x\to-\infty\Rightarrow k(x)\to-\infty \\ x\to\infty\Rightarrow k(x)\to\infty \end{gathered}[/tex]So, the answer will be:
The end behavior of the function is down to the left and up to the right.
===============================================================
Part (2), we will find the y-intercepts
The y-intercept is the value of y when x = 0
So, we will substitute x = 0 and then solve y
[tex]y=0^3-5(0^2)=0[/tex]So, the answer will be:
y-intercept = (0, 0)
================================================================
Part 3: we will find the zeros of k(x)
The zeros of the function are the values of x which make k(x) = 0
So, we will write the equation k(x) = 0 and then solve it for x.
[tex]\begin{gathered} x^3-5x^2=0 \\ x^2(x-5)=0 \\ x^2=0\to x=0 \\ x-5=0\to x=5 \end{gathered}[/tex]So, the answer will be:
Zeros of k: 0,5
===============================================================
Part 4: we will find the graph of k(x)
From the previous parts, we can conclude that
The graph of the function will be as shown in option D
accounts that earn 6% interest. If Emma’saccount earns simple interest and Paul’saccount earns compound interest, which is thevalue of each person’s account after 8 years?A. Emma – $2,960; Paul – $3,187.708. Emma – $960; Paul – $3,187.70C. Emma – $2,960; Paut- $ 1,187.70
Answers
So,
Remember that the simple interest of an initial amount after "t" years, can be found using the following formula:
[tex]A=P(1+rt)[/tex]Where A is the final amount, P is the initial amount, r is the rate and t are the years involved.
If we replace our values, Emma will has the following amount after 8 years:
[tex]\begin{gathered} A=2000(1+\frac{6}{100}(8)) \\ A=2960 \end{gathered}[/tex]So, Emma will has $2,960 after 8 years.
To find the amount that Paul will has, we should remember what the compound interest is.
Remember that the compound interest is given by the formula:
[tex]A=P(1+i)^n[/tex]Where A is the final amount, P is the initial amount, i is the rate and n are the years involved.
If we replace our values, Paul will has the following amount of money after 8 years:
[tex]\begin{gathered} A=2000(1+\frac{6}{100})^8 \\ A=3187.70 \end{gathered}[/tex]So, Paul will has $3187,70 after 8 years.
Therefore, the correct answer is A.
jodie has 2 1/2 cases of soda to split between 5 families. what fraction of a case does each family receive?
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We have in total 2 1/2 so we need to divide this in 5 equal parts
First we will convert our mixed number into a fraction
[tex]2\frac{1}{2}=\frac{4}{2}+\frac{1}{2}=\frac{5}{2}[/tex]Then we divide between 5
[tex]\frac{5}{2}÷\frac{5}{1}=\frac{5\ast1}{2\ast5}=\frac{1}{2}[/tex]ANSWER
1/2 case
Find the equation (in terms of x) of the line through the points (-4,-5) and (1,5)
Answers
Solution:
Step 1: Find the slope of the line:
Given the points (X1, Y1)=(-4,-5) and (X2, Y2)= (1,5), we have that the slope of the line that passes through the points (-4,-5) and (1,5) is:
[tex]m=\frac{Y2-Y1}{X2-X1}=\frac{5+5}{1+4}=\frac{10}{5}=2[/tex]Step 2: Write the provisional equation of the given line. If the slope of the line is m=2, we get that the provisional equation of this line is:
[tex]y\text{ =2x+b}[/tex]Step 3: Find the y-intercept b. Take any point (x,y) on the line and replace its coordinates into the above equation and then solve for b. For example, take the point (x,y)=(1,5), then we obtain:
[tex]5\text{ =2(1)+b}[/tex]this is equivalent to:
[tex]5\text{ =2+b}[/tex]solving for b, we get:
[tex]b\text{ = 5-2 = 3}[/tex]that is:
[tex]b\text{ = 3}[/tex]Step 4: Write the equation of the line. If the given line has slope m=2 and y-intercept b = 3, then its equation would be:
[tex]y\text{ =2x+}3[/tex]and in terms of x, this is equivalent to:
[tex]f(x)=2x+3[/tex]So that, we can conclude that the correct answer is:
[tex]f(x)=2x+3[/tex]16) A bottle of high blood pressure medication contains 90 tablets. Each tablet contains 150 mg of the active ingredient. How many grams of the active ingredient are in the entire bottle? Hint: 1 gram = 1,000 mg
Answers
One tablet contains 150 mg of the active ingredient. Then, 90 tablets contain
[tex]90\text{ tablets }\cdot\frac{150\text{ mg}}{1\text{ tablet}}=13500mg_{}[/tex]1 gram is equivalent to 1,000 mg, then 13500 mg is equivalent to
[tex]13500\text{ mg}\cdot\frac{1\text{ gram}}{1000\text{ mg}}=13.5\text{ grams}[/tex]There are 13.5 grams of the active ingredient in the entire bottle
A right triangle has the lengths of the legs are 60 centimeters and 80 centimeters. what is the length, in cm, of the hypotenuse?
Answers
The following image shows a diagram (not to scale) of the triangle with the indicated measurements:
We will label them as "a" and "b" for reference:
And we need to find the hypotenuse of the triangle, which is the side that is opposite to the 90° angle. We will label the hypotenuse as "c":
To solve the problem we have to us The Pythagorean Theorem:
[tex]c^2=a^2+b^2[/tex]Substituting the values of the legs a and b:
[tex]c^2=60^2+80^2[/tex]Since 60^2=3,600 and 80^2=6,400:
[tex]\begin{gathered} c^2=3,600+6,400 \\ c^2=10,000 \end{gathered}[/tex]Finally, to find the hypotenuse "c", take the square root of both sides of the equation:
[tex]\begin{gathered} \sqrt[]{c^2}=\sqrt[]{10,000} \\ c=\sqrt[]{10,000} \\ c=100 \end{gathered}[/tex]The length of the hypotenuse is 100 cm.
Answer: 100cm
can you PLEASE help me
Answers
In this problem we know that
Applying the exterior angle theorem
10x+30=58+(7x-1)
solve for x
10x-7x=57-30
3x=27
x=9Find m
mm
Find mmm
The graph shows the equation x=y^2 use the slider for a to move the vertical line on the graph. According to the vertical line test, is this equation a function why or why not?
Answers
Explanation
We are given the equation:
[tex]x=y^2[/tex]We are to use the vertical line test to determine if the equation is a function or not
The vertical line test is a graphical method of determining whether a curve in the plane represents the graph of a function by visually examining the number of intersections of the curve with vertical lines.
The typical example below helps give a better explanation
So for the function
[tex]x=y^2[/tex]We can observe that the equation is not a function because the vertical line cuts the graph in more than one point
This is shown below for values of x = and x =8
Jenny has a deck of 52 alphabet cards (26 uppercase and 26 lower case). Jenny selects one card.What is the probability that she selects a vowel?
Answers
We know that we have five vowels in the alphabet. Since the deck has uppercase and lower case cards this means that it has a total of 10 vowels.
The probability is given by the quotient between the number of favorable outcomes and the number of total outcomes; then in this case we have:
[tex]P=\frac{10}{52}=\frac{5}{26}[/tex]Therefore the probability of selecting a vowel is 5/26
Solve the following system using the substitution method. Enter your answer as an ordered pair in the form (x,y).3x - 2y = -95x + 10y = - 5
Answers
Given,
[tex]\begin{gathered} 3x-2y=-9\ldots\ldots\ldots(1) \\ 5x+10y=-5\ldots\ldots\text{.}(2) \end{gathered}[/tex]Multiply 1st equation by 5.
[tex]\begin{gathered} 5(3x-2y=-9) \\ 15x-10y=-45\ldots\ldots\text{.}(3) \end{gathered}[/tex]Solve equations (2) and (3)
[tex]\begin{gathered} 20x=-50 \\ x=\frac{-5}{2} \end{gathered}[/tex]Put x =-5/2 in equation (1)
[tex]\begin{gathered} 3x-2y=-9 \\ 3\times\frac{-5}{2}-2y=-9 \\ \frac{-15}{2}-2y=-9 \\ -2y=-9+\frac{15}{2} \end{gathered}[/tex]Further solved as,
[tex]\begin{gathered} -2y=\frac{-45+15}{5} \\ -2y=\frac{-30}{5} \\ -2y=-6 \\ y=3 \end{gathered}[/tex]Therefore, the value of x and y is -5/2 and 3.
у 10 8 P 4 2 0 2 6 8 10 Which ordered pair represents the location of point P on the coordinate plane? a (5,6) b (6,5) (6,7) d (7,6)
Answers
The ordered pair that represents the location of point P is (6,5)
Explanation:
In order to determine the position of point P, we will need to trace its position to the x axis and also trace its position to the y axis.
Tracing its position to the x axis, we find it corresponds to 6 units
Tracing its position to the y axis, we find it corresponds to 5 units.
This because each line represents 1 units. After the 4 units, the next line is 5 units.
Using the coordinates (x,y):
The ordered pair that represents the location of point P is (6,5)
Usually it takes Mrs. Manny 5.2 hours to grade her students' assignments. Thisweekend, her daughter Lexi is home and has offered to help. If it would take Lexi 6.4hours to grade the papers alone, how long will it take the two to finish the task of grading,working together?
Answers
Mrs. Manny needs 5.2 hours to grade her students' assignments. It would take Lexi 6.4 hours to grade the assignments alone.
In one hour, Mrs. Manny completes 1 / 5.2 = 0.1923 of the work.
In one hour, Lexi completes 1 / 6.4 = 0.15625 of the work
Together, they complete 0.1923 + 0.15625 = 0.34856 of the work.
The full work would take them 1 / 0.34856 = 2.87 hours.
It would take 2.87 hours for them to finish the task together.
Acetone (fingernail polish remover ) has a density of 0.7857 g/cm^3.A) what is the mass in grams of 17.56 mL of acetone?B) what is the volume in milliliters of 7.22 g of acetone?
Answers
We can use density as a factor of conversion.
To find the mass in grams of the volume of acetone, multiply the volume by the density (always check the units, that in this case are consistent because 1cm^3=1mL):
[tex]17.56mL\cdot\frac{0.7857g}{mL}=13.79g[/tex]To find the volume of the mass of acetone, divide the mass by the density:
[tex]7.22g\cdot\frac{1mL}{0.7857g}=9.18mL[/tex]3. For the sequence defined by tn = 3n + 8,find each indicated term.a) t1b) t7c) t14
Answers
The sequence is given by .
[tex]t_n=3n+8[/tex]a. The indicated term
[tex]t_1=3(1)+8[/tex][tex]t_1=3+8[/tex][tex]t_1=11[/tex]b. The indicated term
[tex]t_7=3(7)+8[/tex][tex]t_7=29[/tex]c. The indicated term
[tex]t_{14}=3(14)+8[/tex][tex]t_{14}=42+8[/tex][tex]t_{14}=50[/tex]
Translate the figure 1 unit left and 3 units down.Plot all of the points of the translated figure.You may click a plotted point to delete it.-10--54 - -3 4 5 6 7
Answers
The coordinates of the quadrilateral after translation will be : A'( 0 , 6 ) , B'( 6 , 4) , C'( 0 , 1 ) and D'( 4 , -2 )
The given quadrilateral in the graph has the coordinates:
A(1,8) , B(7,7) , C(1,4) , D(5,4)
When this figure is translated 1 unit to the left and 3 units downwards we get :
A ( 1 , 8 ) → A'( 0 , 5 )
B ( 7 , 7 ) → B'( 6 , 4 )
C ( 1 , 4 ) → C'( 0 , 1 )
D ( 5 , 4 ) → D'( 4 , 1 )
Hence the translated figure will have the coordinates:
A'( 0 , 6 ) , B'( 6 , 4) , C'( 0 , 1 ) and D'( 4 , -2 ) .
In Euclidean geometry, a translation or transformation is still a geometric change that entails shifting every point in a figure, shape, or space uniformly in one direction.
Moving the origin of the coordinate system or adding a constant vector to each point are other ways to conceptualize translation.
to learn more about translation visit:
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A right triangle has a hypotenuse of 18 feet and a side length opposite of 12 feet . What is the measure of angle A the nearest degree ?
Answers
CM Bookmarks Geometry Unit 11 Test Area of Plane Figures E CALCULATOR • colo a a noosa 12. Find the area of the shaded region of the figure
Answers
It is a trapezoid
[tex]\begin{gathered} \text{ Area = h}\frac{B\text{ + b}}{2} \\ \text{Area = 4}\cdot\text{ }\frac{16\text{ + 6}}{2} \\ \text{Area = 4}\cdot\frac{22}{2} \\ \text{Area = }\frac{88}{2} \\ \text{Area = 44 mm}^2 \end{gathered}[/tex]
Question Joan invested $1,420 at the start of the year and found she had $1,621.40 at the end of the year. What is the annual effective yield of her investment? Input your answer as a percentage rounded to two decimal.
Answers
Money invested = $1420
Final money = $1621.4
Effective yield = [ 1 + i/n]^n - 1
i = nominal rate let's consider 10%
n = number of payments 12 payments because it is in a year
Effective yield = [1 + 0.1/12]^12 - 1
= [ 1 + 0.00833]^12 - 1
= [1.0083]^12 - 1
= 1.1 - 1
Effective yield = 0.10 %
Write an expression in simplest form that represents the income from w women and m men getting a haircut and shampoo. Women: haircut $45 shampoo $12. Men: haircut $15 shampoo $7
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Write an expression in simplest form that represents the income from w women and m men getting a haircut and shampoo. Women: haircut $45 shampoo $12. Men: haircut $15 shampoo $7
the income is equal to
45w+12w+15m+7m
combine like terms
57w+22m
total income=57w+22mwhere
w is the number of women
m is the number of men
the image is downloading nowabout 15%is too slowlyDo you can write the question?The graphs of functions f(x) and g(x) = f(x) + k are shown below:g(x)65432f(x))3-3The value of k is.(1 point)
Answers
Solution
We know that :
g(x) = f(x) + k
For this case the answer is:
the value of k is: 4
it's a graph, I need help with the first one to understand how to do the rest. Please draw it clearly and understandably.
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1) In this inequality 3x ≥ 9 we have to find a set of values for x.
3x ≥ 9 Divide both sides by 3
x ≥3
2) We can express this set of solutions in the number line as well. Since is greater than or equal to we'll use a closed dot. To include this 3.
3) Hence the graph above represents that every value greater than and the 3 satisfies the restraint x ≥3.