The measure of the angle m∠B is equal to 41°. Using the sine rule the lengths of a and b are 9.6 and 8.3 respectively.
What is the sine ruleThe sine rule is a relationship between the size of an angle in a triangle and the opposing side.
We shall first evaluate for the angle m∠B as follows:
m∠A + m∠B + m∠C = 180° {sum of interior angles of a triangle}
49° + B + 90° = 180°
B + 139° = 180°
B = 180° - 139° {subtract 139° from both sides}
m∠B = 41°
12.7/sin90° = a/sin41
a = (12.7 × sin49)/sin90° {cross multiplication}
a = 9.5848
12.7/sin90° = b/sin49
b = (12.7 × sin49)/sin90 {cross multiplication}
b = 8.3319
Therefore, the measure of the angle m∠B is equal to 41°. Using the sine rule the lengths of a and b are 9.6 and 8.3 respectively.
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the perimeter of the shaded part of a square is 28 inches. find the area of the square
Answer:
Step-by-step explanation:
A square has 4 equal sides therefore to find the side of one we would divide the perimeter by 4. Doing that we get 7 inches.
Now seeing as it has four equal sides in order for us to find the area we would do:
Area = side x side = 7x7 = 49 squared inches
a special domino set contains all number pairs from double-0 to double-8, with each number pair occurring only once. for example, the following domino counts as 1-4 and 4-1. how many dominos are in the set?
There are 40 dominos in the set which contains all number pairs from double-0 to double-8.
The domino set contains all number pairs from double-0 to double-8, which means that there are nine possible values for each half of the domino and they are - 0, 1, 2, 3, 4, 5, 6, 7, and 8.
Since each number pair occurs only once, we can count the total number of dominos in the set by counting the number of distinct pairs of values that can be formed by combining the numbers on the two halves of the domino.
There are 9 possible values for the first half of the domino and 9 possible values for the second half, so there are 9 x 9 = 81 possible pairs of values.
However, we need to divide this by 2 to avoid counting each pair twice, since a domino with the values A-B is the same as a domino with the values B-A.
Therefore, the total number of distinct dominos in the set is 81/2 = 40.5, but since dominos cannot be counted in halves, the closest integer number of dominos is 40.
So there are 40 dominos in the set.
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image a,b,c,d,e
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-
-
-
-
-
-
-
a. yes because they = 0
b. no, negative + negative = negative
c. yeah cause 3 >
d. no, its 0
e. no
Ahhh pls help!
A cruise ship made a trip to Vancouver and back. The trip to Vancouver took 6 hours, and the trip back took 9 hours. The ship averaged a speed of 12 km/h (kilometers per hour) on the trip back. What was the ship's average speed on the trip to Vancouver?
Terri wants to know the height of the big Christmas tree on the town square. She stands 20 feet from the base of the tree. Elliot places a mirror on the ground between Terri and the tree so that she can see the top of the tree in the mirror. The mirror is located 16 feet from the base of the tree. If Terri's eye level is 5.5 feet from the ground, how tall is the tree?
Answer:
22ft
Step-by-step explanation:
Always good to try and draw out the scenario, it can make it more easily understandable.
Have a look at the pic.
Hope its clear.
how does one do this equasion 6234653928+294292342-424624642x16515615615165161x1156+6466456
The given Expression simplifies to -8.1069556e+27
What is BODMAS rule?BODMAS stands for Bracket, Of, Division, Multiplication, Addition, and Subtraction. A mathematical expression's order of execution is explained using the BODMAS.
Given an equation to solve,
6234653928 + 294292342 - 424624642 x 16515615615165161 x 1156 + 6466456
Let us consider this Expression as A + B - C * D * E + F, with the corresponding terms being equal
By, the BODMAS rule,
First step: Multiply C, D, E. Let this be G
Now, the equation will look like this: A + B - G + F
Second step: We can add and subtract according to the signs now
On solving, the expression simplifies to -8.1069556e+27
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Andy and dale solved 35 puzzles together. 1/3 of the puzzles that Andy solved are twice the number of puzzles Dave solved. How many puzzles did each boy solve?
Answer:
Andy: 30Dale: 5Step-by-step explanation:
You want to find the number of puzzles solved by each boy if they solved 35 puzzles together, and 1/3 of the number Andy solved is twice the number Dale solved.
EquationsLet 'a' and 'd' represent the numbers of puzzles solved by Andy and Dale, respectively. Then ...
a + d = 35
1/3a = 2d
SolutionMultiplying the second equation by 3, we get an expression for 'a' that can be used in the first equation:
a = 6d
6d +d = 35
d = 35/7 = 5
a = 6(5) = 30
Andy solved 30 puzzles; Dale solved 5.
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It takes Shawn 35 minutes by car to get to his grandma’s. The nearest parking area is a 4 minute walk from her apartment. One week, he realized that he spent 5 hours and 12 minutes traveling to her apartment and then back home. How many round trips did he make to visit his grandma?
Shawn made 4 round trips to visit his grandma.
How to calculate Travel Time?The travel time is the amount of time it takes to travel from one location to another. The specific method for calculating travel time depends on the mode of transportation being used. Here are some general guidelines for calculating travel time:
Estimate the distance between the starting location and the destination.Determine the average speed or pace of travel. This will depend on the mode of transportation being used.Calculate the travel time by dividing the distance by the speed or pace. This will give you the estimated travel time in hours.Let's start by converting the total travel time to minutes:
5 hours and 12 minutes = 5 × 60 + 12 = 312 minutes
Let's call the number of round trips that Shawn made "x".
For each round trip, Shawn has to travel to his grandma's apartment and then back home. The total time for each round trip is:
time per round trip = time to get there + time to get back + time to walk to/from parking
time per round trip = 35 + 35 + 4 + 4 = 78 minutes
So the total travel time for all of the round trips is:
total travel time = time per round trip x number of round trips
312 = 78x
Solving for "x", we get:
x = 312/78 = 4
Therefore, Shawn made 4 round trips to visit his grandma.
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xº
Solve for xº:
ox
ox
Answer:
x=120
Step-by-step explanation:
sum of angles is 540
given two right angles which is 90
90+90=180
540-180=360
360/3=120
Please help me with this it will mean a lot I need help with 17
The equivalent expressions are 7(2)^3x = 7(8)^x, 7(1/2)^x = 7(2)^-x, 7(4)^(3x + 1) = 7(2)^(6x + 2), 14(2)^x = 7(2)^(x + 1) and 14(2)^x = 14(4)^(x/2)
How to match the equivalent expressionFrom the question, we have the following parameters that can be used in our computation:
The expressions on the left and those on the right
To do this, we solve the expressions on the left and look for a match
Using the above as a guide, we have the following:
(a) 7(2)^3x
Evaluate the exponent
7(2)^3x = 7(8)^x
(b) 7(1/2)^x
Apply the law of indices
7(1/2)^x = 7(2^-1)^x
So, we have
7(1/2)^x = 7(2)^-x
(c) 7(4)^(3x + 1)
Apply the law of indices
7(4)^(3x + 1) = 7(2^2)^(3x + 1)
So, we have
7(4)^(3x + 1) = 7(2)^(6x + 2)
(d) 14(2)^x and (e) 14(2)^x
Without solving them, we have
14(2)^x = 7(2)^(x + 1)
14(2)^x = 14(4)^(x/2)
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The equation 7(2W + 3) = 14W + 20 has no solutions. Change one term in the original equation to create a new equation with infinitely MANY solutions.
One term in the original equation that needs to be changed to create a new equation with infinitely many solutions is 20 to 21.
What is an equation?An equation is a mathematical or algebraic statement that shows that two or more mathematical expressions are equal or equivalent.
Equations are depicted using the equal symbol (=), unlike mathematical expressions, which consist of variables, constants, numbers, and values.
7(2W + 3) = 14W + 20 does not have a solution because the first expression is unequal to the second expression and cannot be said to be an equation.
7(2W + 3) = 14W + 21 have many solutions for W.
Thus, changing 20 to 21 gives the original equation an indefinite number of solutions for W.
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Which is the incorrect statement?
3x - 100
x + 50
#1: The value of x is 75.
#2: The angles are corresponding angles.
#3: The measure of both angles is 75°.
#4: We can use 3x - 100 = x + 50 to solve for x.
Answer:
3
Step-by-step explanation:
The measure of each angle is [tex]3(75)-100=125^{\circ}[/tex].
13. Consider the lines described below.
3
line a: a line with the equation y=-x-2
line b: a line containing the points (-6, 1) and (3, -14)
line c: a line containing the points (-1,8) and (4, 11)
line d. a line with the equation -5x+3y=6
Use the vocabulary from the lesson to write a paragraph that describes the relationship among line a, b, c, and d
Lines a, b, c, and d are all straight lines in a two-dimensional coordinate system.
How to calculate the lineLine a has an equation of y=-x-2, which is the slope-intercept form of the equation of a line. This line has a slope of -1 and a y-intercept of -2. Line b is defined by two points (-6,1) and (3,-14), which can be used to find the equation of the line using the point-slope form of a line.
This line has a negative slope and passes through the points (-6,1) and (3,-14). Line c has two points (-1,8) and (4,11), which can also be used to find its equation using the point-slope form. This line has a positive slope and passes through the points (-1,8) and (4,11). Finally, line d has the equation -5x+3y=6, which is the standard form of the equation of a line. This line has a slope of -5/3 and a y-intercept of 2. These four lines are all different but all exist in the same two-dimensional coordinate system.
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Find the missing side length using trig please!
Answer: 25 inches
Step-by-step explanation:
cos60 = adjacent over hypotenuse
cos60 = a/50
50cos60 = 25
What is the area of this compound figure?
Answer: 2707
Step-by-step explanation: just multipli
Answer:
186m^2
Step-by-step explanation:
This compound figure will be divided to three rectangular.
1) 18x9=162
2) (18-12)x2=12
3) 2x6=12
so, total is 161+12+12=186^2
Sketch and graph please
We have drawn the graph for the given inequality.
What is inequality?
Inequality is a mathematical statement that compares two values or expressions and shows their relative size. It is represented by the symbols >, <, ≥, or ≤, which respectively mean "greater than", "less than", "greater than or equal to", and "less than or equal to". Inequalities can also include variables and can be used to describe a range of possible values for that variables.
For the given inequality y > -x - 5
we can draw the graph as shown below:
Hence, we have drawn the graph for the given inequality.
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If you drove at 50 mph in 5 hours, how far will you have traveled? NEED ASAP
a. 200 miles
b. 10 miles
c. 250 miles
d. 300 miles
Answer:
c
Step-by-step explanation:
2. Matt measures the angle of elevation of the peak of a mountain as 35º. Susie, who is 1200
feet closer on a straight level path, measures the angle of elevation as 42º. How high is the
mountain?
The height of the mountain using the angle of elevation is 3858.85 units.
What are trigonometric functions?The three basic categories of trigonometric functions are sine, cosine, and tangent. And from the basic functions, one can deduce the three cotangent, secant, and cosecant functions. In contrast to the fundamental trigonometric functions, the other three functions are essentially employed more frequently.
Let the distance between the mountain and Matt = x.
Then the distance of Susie will be:
S = x - 1200
Matt measure the angle of elevation as 35 degrees.
Using the trigonometric function we have:
tan (35) = h / x
x = h/ 0.7.......(1)
For Susie:
tan(42) = h / x - 1200
0.9(x - 1200) = h
0.9x - 1080.48 = h .........(2)
Substitute the value of x in equation 2:
0.9 ( h/ 0.7) - 1080.48 = h
1.28h - 1080.48 = h
1.28h - h = 1080.48
0.28h = 1080.48
h = 3858.85
Hence, the height of the mountain using the angle of elevation is 3858.85 units.
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The time taken to cook Wkg is given by the expression (48w + 23) minutes. Calculate the time it would take to cook 3kg of meat giving in hours and minutes
Work Shown:
48w+23
48*3+23
144+23
167
It takes 167 minutes to cook 3 kg of meat.
Convert this to hours+minutes format.
167 min = 120 min + 47 min
167 min = 120/60 hr + 47 min
167 min = 2 hr + 47 min
Let f(x)=p(x)/q(x) where p(x) and p(x) are polynomials with no common factors other than 1. Describe how to find the x-intercepts and the vertical asymptotes of the function
To find the x-intercepts of a rational function of the form f(x) = p(x)/q(x), we set p(x) = 0 and solve for x. To find the vertical asymptotes, we set q(x) = 0 and solve for x.
Vertical asymptotes are vertical lines that a function approaches but never touches or crosses as the independent variable (usually denoted as x) approaches a certain value.
To find the x-intercepts of the function, we need to set the numerator of the rational function equal to zero and solve for x. This is because x-intercepts occur when the function value is equal to zero. Therefore, we can write:
p(x) = 0
Solving this equation will give us the values of x where the function intersects the x-axis. It is important to note that if p(x) has a degree greater than or equal to q(x), then the function will have a slant asymptote instead of a vertical asymptote.
To find the vertical asymptotes of the function, we need to look at the denominator of the rational function. Vertical asymptotes occur when the function approaches infinity or negative infinity as x approaches a certain value. In the case of a rational function, this happens when the denominator is equal to zero. Therefore, we can write:
q(x) = 0
Solving this equation will give us the values of x where the function has a vertical asymptote. It is important to note that if the degree of q(x) is greater than the degree of p(x), then the function will have a horizontal asymptote instead of a vertical asymptote.
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Mr. Rankin purchased a box of
copy paper for his office. The
box is 18 inches long, 12 inches
wide, and 10 inches tall. The box
is completely filled with
packages of tightly packed
paper. Each package measures
12 inches by 9 inches by 2
inches. How many packages are
in the box?
Answer:
10 packages
Step-by-step explanation:
When Mr. Rankin opens the box and looks straight down on it, he could see two packages. The 12x9 paper package can fit two, side by side in the 18X12 box.
Then there also can fit a stack 5 packages tall. Each bundle is 2 inches tall and the box is 10 inches tall.
Two stacks, 5 deep is 10 packages. see image.
Jake will run at a constant rate of 8 minutes per mile. Ethan will longboard at rate of 5 minutes per mile for the first two miles then will slow down and longboard at a rate of 10 minutes per mile. Make two tables finding the times for each boys results for 1,2,3,4,5 and 6 miles
The time and distance of both the boys Jake and Ethan when they meet with each other is equal to 40 minutes after covering 5 miles.
Constant rate by which Jake run is equal to 8 minutes per mile.
Rate of Ethan longboard for first two miles = 5 minutes per mile
Rate of Ethan longboard for rest of the miles = 10 minutes per mile
Time taken by each of them is :
Miles Time taken by Jake (minutes) Time taken by Ethan(minutes)
1 8 min 5 min
2 16 min 10 min
3 24 min 20 min
4 32 min 30 min
5 40 min 40 min
6 48 min 50 min
Therefore , time and distance at which Jake and Ethan meet is equal to 40 minutes that is at 5 miles.
The above question is incomplete , the complete question is:
Jake will run at a constant rate of 8 minutes per mile. Ethan will longboard at rate of 5 minutes per mile for the first two miles then will slow down and longboard at a rate of 10 minutes per mile. Make two tables finding the times for each boys results for 1,2,3,4,5 and 6 miles.
Find out the time and distance at which both meet.
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Find the sum of (8a + 2b -4) and (3b-5)
The sum of expression is 8a + 5b - 9.
What is expression?A mathematical operation such as subtraction, addition, multiplication, or division is used to combine terms into an expression. In a mathematical expression, the following terms are used:
An absolute numerical number is referred to as a constant.Variable: A symbol without a set value is referred to as a variable.Term: A term can be made up of a single constant, a single variable, or a mix of variables and constants multiplied or divided.Coefficient: In an expression, a coefficient is a number that is multiplied by a variable.Given:
(8a + 2b -4) and (3b-5)
Now, adding the above expression we get
(8a + 2b -4) + (3b-5)
= 8a + 2b - 4 + 3b - 5
= 8a + 2b + 3b -4 - 5
= 8a + b(2+ 3) - 9
= 8a + b(5) -9
= 8a + 5b - 9
Hence, the simplified expression is 8a + 5b - 9.
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(c) What is the shortest possible distance between the building and the end of the ramp if the architect redesigns the building so that the doorway is 1.3 feet above the parking lot?
The required shortest distance between the building and the end of the ramp, if the doorway is 1.3 feet above the parking lot, is 1.3 feet.
What is the slope?The slope is defined as the ratio measure of rise to measure of the run.
Here,
The shortest possible distance between the building and the end of the ramp, if the doorway is 1.3 feet above the parking lot, is 1.3 feet.
This is because, if the doorway is 1.3 feet above the parking lot, the ramp will need to rise 1.3 feet in order for a person or vehicle to be able to enter the building. The length of the ramp will be equal to the rise, so in this case, the shortest possible distance between the building and the end of the ramp would be 1.3 feet.
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Find y in equilateral AABC. (A) 90° (B) 70° (C) 60° (D) 45°
Variable y in equilateral 60°, Thus correct option is C) 60°.
What does an equilateral triangle mean?An equilateral triangle is one with equal-sized sides on all three sides and angles that can all reach a maximum of 60 degrees. An equilateral triangle is a triangle with three equal sides, also referred to as a "regular" triangle. Since all three sides of an isosceles triangle are equal, an equilateral triangle is a special case of an isosceles triangle. Three equal angles of 60 degrees also make up an equilateral triangle.
The sum of all the angles in a triangle is 180.
It is given that the triangle ABC is an equilateral triangle.
So ∠A+∠B+∠C =180°
∠A=B=∠C
3∠A=180°
∠A=60°
Therefore y in ΔABC is C) 60°
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A bakery is selling breakfast platters. A platter of 12 bagels costs $10.20. Additionally, it costs $4.65 for a gallon of coffee.
What is the slope of this situation?
© 10.20
© 4.65
© 0.85
O 0.12
The slope of this situation is equal to: C. 0.85.
What is the slope-intercept form?Mathematically, the slope-intercept form of the equation of a straight line is given by this mathematical expression;
y = mx + c
Where:
m represents the slope or rate of change.x and y are the points.c represents the y-intercept or initial value.How to calculate the slope of a line?In Mathematics, the slope of any straight line can be determined by using this mathematical equation;
Slope (m) = (Change in y-axis, Δy)/(Change in x-axis, Δx)
Slope (m) = 10.20/12
Slope (m) = 0.85.
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i need help with this problem
Answer: Yes. for each input there is exactly
ONE output
Step-by-step explanation:
I did the test and it was true.
How do you find the slope intercept in a table
Answer:
To find a slope intercept in a table look what x is like this. ( 2,9) 2 is the x-intercept and 9 is the y-intercept. Furthermore, if you get a slope like 0,0 which is the origin put a dot on there.
Answer:
Step-by-step explanation:
use this equation
(y1-y2)/(x1-x2)
What ordered pairs are the solutions of the system of equations shown in the graph
below?
The solutions of the system of equations are (-1, 2) and (3, -5)
What ordered pairs are solutions of the system of equations?Here we have a graph of a system of equations. The solutions are all the points where the graphs of the two equations intersect.
Here we can see two intersection points, thus, we have two solutions. We can see that the first intersection is at (-1, 2) and the second intersection is at (3, -5)
So these two are the solutions of the system of equations.
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What is the Lower Quartile for the following set of data:
1, 8, 1, -4, 12, -2, 15, 6
The lower quartile for the given data is -2, since it is the 25th percentile and is the value that lies at the 25th position when the data is sorted in ascending order.
1. Sort the data in ascending order: -4, -2, 1, 1, 6, 8, 12, 15
2. Calculate the 25th percentile: 25th percentile = (n + 1) * 0.25 = (8 + 1) * 0.25 = 2.25
3. The 25th percentile is between the 2nd and 3rd values, which are -2 and 1 respectively.
4. The lower quartile is -2.
The lower quartile (also known as the 25th percentile) is the value that lies at the 25th position when the data is sorted in ascending order. To find the lower quartile of the given set of data (1, 8, 1, -4, 12, -2, 15, 6), the data needs to be sorted in ascending order. This gives us the following data: -4, -2, 1, 1, 6, 8, 12, 15. Now, to calculate the 25th percentile, we use the formula (n + 1) * 0.25, where n is the number of data points. In this case, n = 8, so the 25th percentile = (8 + 1) * 0.25 = 2.25. This means the 25th percentile is between the 2nd and 3rd values, which are -2 and 1 respectively. Therefore, the lower quartile for the given data is -2.
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