The value of cosec B if A and B are complementary is 15/7
What are complementary angles?Two angles are called complementary when their measures add to 90 degrees. Since A+B = 90°, then A and B are complementary. Examples of complementary angles are 45 and 45, 30 and 60, 20 and 70 e.t.c
If sec A is 15/7
sec A= 1/cos A
therefore cos A = 7/15
if cos A = 7/15 , then from law of complementary angles
cos A = sin (90-A)
and 90-A = B
therefore cos A = sinB
if cos A = 7/15, then;
sin B = 7/15
then sinB = 1/cosec B
cosec B = 15/7
therefore the value of cosec B = 15/7
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A factory uses 3/8 of a barrel of pecans in each batch of cookies. Yesterday, the factory used 3/4 of a barrel of pecans. How many batches of cookies did the factory make yesterday
Answer:
3/4
Step-by-step explanation:
1 batch of cookies is equal to 0.375. 3/4 a barrel of cookies is equal to 0.75. 0.75/0.375 is equal to 2. So 3/4 a barrel is 2 batches of cookies.
Determine the ratio of surface area to volume for each triangular prism
The ratio of surface area to volume for each triangular prism will be;
⇒ 224 : 2592
What is mean by Ratio?A ratio indicates how many times one number contain in another number. The ratio of two number is written as x : y, which is equivalent to x/y. Where, x and y are individual amount of two quantities. And, Total quantity gives after combine as x + y.
Given that;
In first figure,
The height of triangular prism = 4 cm
The base of triangular prism = 3 cm
The Length of triangular prism = 8 cm
In second figure,
The height of triangular prism = 12 cm
The base of triangular prism = 15 cm
The Length of triangular prism = 24 cm
Now,
We know that;
The volume of triangular prism = (Perimeter of base × length of prism)
+ (2 × Base area)
In first figure,
Perimeter of base = 2 (3 + 8)
= 22 cm
And, Area of base = 3 × 8
= 24 cm²
Thus, We get;
The volume of triangular prism = (Perimeter of base × length of prism)
+ (2 × Base area)
= (22 × 8) + (2 × 24)
= 176 + 48
= 224 cm³
In second figure,
Perimeter of base = 2 (15 + 24)
= 78 cm
And, Area of base = 15 × 24
= 360 cm²
Thus, We get;
The volume of triangular prism = (Perimeter of base × length of prism)
+ (2 × Base area)
= (78 × 24) + (2 × 360)
= 1872 + 720
= 2592 cm³
So, The ratio of surface area to volume for each triangular prism will be;
⇒ 224 : 2592
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How do you solve m =( y2 y1 )/( x2 x1?
PLEASE THIS IS AN EMERGENCY I NEED HELP QUICK!!!!!
1.Compare the expressions 7 + 3^2-2x5÷4-1x2 and (¾+ ⅛) ÷ ⅛ - 2^2using < , =, > or . Show your work.
Answer:
The comparison of the expressions is 7 + 3² -2 * 5 ÷ 4 - 1 * 2 > (¾+ ⅛) ÷ ⅛ - 2²
How to compare the expressionsFrom the question, we have the following parameters that can be used in our computation:
7 + 3^2-2x5÷4-1x2 and (¾+ ⅛) ÷ ⅛ - 2^2
Express the exponents properly
This gives
7 + 3² -2 * 5 ÷ 4 - 1 * 2 and (¾+ ⅛) ÷ ⅛ - 2²
Evaluate the exponents
So, we have the following representation
7 + 9 - 2 * 5 ÷ 4 - 1 * 2 and (¾+ ⅛) ÷ ⅛ - 4
Evaluate the expressions in brackets
So, we have the following representation
7 + 9 - 2 * 5 ÷ 4 - 1 * 2 and 7/8 ÷ ⅛ - 4
Solve the products and quotients
7 + 9 - 2.5 - 2 and 7 - 4
So, we have
11.5 and 3
11.5 is greater than 3
So, we have
11.5 > 3
Rewrite as
7 + 3² -2 * 5 ÷ 4 - 1 * 2 > (¾+ ⅛) ÷ ⅛ - 2²
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If AD was congruent to DC and AB was congruent to BC, Determine whether quadrilateral ABCD Is a parallelogram (explain your answer
Angle DBC and angle ADB constitute a pair of alternate internal angles which are congruent," which concludes the evidence.
How to find whether quadrilateral ABCD is a parallelogram?The final sentence that establishes that ABCD is a parallelogram is "Angle DBC and angle ADB form a set of alternate interior angles which are congruent."
A parallelogram has opposing sides that are parallel and equal.
AB = DC and AB || DC as stated. Only AD || BC and AD=BC need to be demonstrated. As a result, the qualities of AD=BC are demonstrated. And a pair of alternative interior angles for demonstrating AD || BC should be equal.
This leads to Phrase C, "Angle DBC and angle ADB constitute a pair of alternate internal angles which are congruent," which concludes the evidence.
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A movie theater went through 2 pounds of popcorn every 9 hours. They went through ___ of a pound every hour.
The pound per hour when the movie theater went through 2 pounds of popcorn every 9 hours is 2/9 pounds
How to illustrate the ratio?Ratio in Mathematics simply demonstrates how many times one number can be able to fit into another number. It should be noted that ratios contrast two numbers by dividing them. In this case, A/B will be the formula if one is comparing one variable (A) to another variable (B).
In this case, the movie theater went through 2 pounds of popcorn every 9 hours. The pound per hour will be:
= Number of pound / Number of hours
= 2/9
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How do you find 1/3 of a line segment?
To find 1/3 of a line segment, divide the line segment into three equal parts. Measure the length of one of these parts and this will be 1/3 of the line segment.
This can be done by using a ruler or a measuring tape. Alternatively, if the length of the line segment is known, divide it by 3 to find 1/3 of the line segment. For example, if the line segment has a length of 12 inches, then the length of 1/3 of the line segment is 4 inches. If the line segment is curved, you can divide it into three equal arc lengths using a compass.
You can then measure the length of one of these arcs to find 1/3 of the line segment. To make sure that the three parts are equal, you can use the Pythagorean theorem or the triangle inequality theorem. This will help you to accurately divide the line segment into three equal parts.
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Solve the following system of equations. Express your answer as an ordered pair in the format (a,b), with no spaces between the numbers or symbols.
The solution to the system of equations is (3,1).
2x - 3y = 6
3x + 2y = 7
(3,1)
Multiply the first equation by 3:
6x - 9y = 18
Add the two equations:
9x - 7y = 25
Divide both sides by 9:
x - y = 25/9
Substitute 25/9 for x in the second equation:
3(25/9) + 2y = 7
Simplify:
25 + 18y = 63
Subtract 25 from both sides:
18y = 38
Divide both sides by 18:
y = 38/18
Substitute 38/18 for y in the equation x - y = 25/9:
x - (38/18) = 25/9
Simplify:
x = (25/9) + (38/18)
Simplify:
x = 63/9
Therefore, the solution is (63/9, 38/18) or (3,1).
The solution to the system of equations is (3,1).
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The tensile strength for a certain steel wire is 3000 mn/m2. What is the maximum load that can be applied to a wire with a diameter of 3. 0 mm made of this kind of steel?.
The maximum load that can be applied to the wire made of that kind of steel is 21195 N. The result is obtained by using the tensile strength equation.
What is tensile strength?Tensile strength is the maximum load or stress that a material can withstand without fracture when being stretched or pulled per its cross-sectional area.
The statement can be expressed as
σ = F/A
Where
σ = tensile strengthF = force acting on the materialA = cross-sectional areaThe tensile strength of a certain steel wire is 3000 MN/m². The diameter of the wire is 3.0 mm. Find the maximum load that can be applied to the wire!
Let's count the cross-sectional area!
A = πr²
A = 3,14 (½d)²
A = 3,14 [½(3.0 × 10⁻³)]²
A = 3,14 (1.5 × 10⁻³ m)²
A = 3,14 (2.25 × 10⁻⁶) m²
A = 7.065 × 10⁻⁶ m²
The maximum load is the maximum value of the force acting on it.
σ = F/A
3000 MN/m² = F / 7.065 × 10⁻⁶ m²
3000 × 10⁶ N/m² = F / 7.065 × 10⁻⁶ m²
F = 3 × 10⁹ × 7.065 × 10⁻⁶ N
F = 21.195 × 10³ N
F = 21195 N
Hence, the steel wire can have the maximum load of is 21195 N.
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Suppose x is 5 and y is 7. Choose the value of the following expression: (x != 7) && (x <= y) a. false b. true c. 0 d. null
The value of the expression (x != 7) && (x <= y) is: B. true
The expression is a combination of two logical conditions joined by the logical operator "&&" which means "and". The first condition "x != 7" checks if x is not equal to 7, which is true because x is 5. The second condition "x <= y" checks if x is less than or equal to y, which is also true because x is 5 and y is 7.
Since both conditions are true, the entire expression evaluates to true. The logical operator "&&" only returns true if both the conditions are true, else it will return false.
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How many lengths of ribbons 18 centimeters long can be cut from a length of 3.6 meters?
20 ribbons can be cut from the 3.6m length of ribbon.
1m=100 cm
lengths of ribbons 18 centimeters long can be cut from a length of 3.6 meters
number of ribbons = 360/18
=20
20 ribbons can be cut from the 3.6m length of ribbon.
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evaluate the iterated integral by converting to polar coordinates. a 0 0 2x2y dx dy − a2 − y2
The value of the iterated integral after converting it to polar coordinates and solving it is 2.
What is integral ?
An integral in mathematics is either a numerical value equal to the area under the graph of a function for some interval or a new function, the derivative of which is the original function (indefinite integral).
The integral becomes ,
∫∫_D rdrdθ where D is the region in the polar coordinates.
The region D is defined by the constraints ,
0 <= r <= 2cos(θ) and 0 <= θ <= pi/4
So, the integral is ∫^(pi/4)_0∫^(2cos(θ))_0 rdrdθ = (1/2) ∫^(pi/4)_0 (2cos(θ))^2 dθ = (1/2) ∫^(pi/4)_0 4cos^2(θ) dθ
Now we can solve the integral by integration by parts,
u = 4cos^2(θ)
du/dθ = -8sin(θ)cos(θ)
dv/dθ = 1
v = θ
∫^(pi/4)_0 4cos^2(θ) dθ = [4cos^2(θ)θ]^(pi/4)_0 - ∫^(pi/4)_0 -8sin(θ)cos(θ)θ dθ
The value of the iterated integral after converting it to polar coordinates and solving it is 2.
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Please help!! And please explain how you got it I really don’t understand
Answer:
Step-by-step explanation:
do it better than what you did before.
find the quotient 2 divided by 3/7.
Answer:
14/3
Step-by-step explanation:
Flip the second fraction's numerator and denominator to get its reciprocal of 7/3. Then, you simply multiply it by 2, which equals 14/3.
Select the correct answer from each drop-down menu. given: prove: a transversal line intersects two parallel lines a and b with values of corresponding angles congruent pairs of corresponding angles are (1, 5), (4, 8), (3, 7), and (2, 6). complete the proof. statements reasons 1. given 2. corresponding angles theorem 3. vertical angles theorem 4. transitive property of congruence
A transversal line intersects two parallel lines a and b with values of corresponding angles congruent pairs of corresponding angles are (1, 5), (4, 8), (3, 7), and (2, 6).
∠1 ≅ ∠5 (corresponding angle theorem)
∠7 ≅ ∠5 (vertical angle theorem)
∠1 ≅ ∠7 (Transitive property of congruence)
Complete question is at the end of solution.
As per the given data, a transversal line intersects two parallel lines a and b.
The values of corresponding angles congruent pairs of corresponding angles are (1, 5), (4, 8), (3, 7), and (2, 6)
How to find angles?Line a is parallel to line b.
Therefore,
a ║ b
Let's prove ∠1 ≅ ∠7
Hence,
∠1 ≅ ∠5 (corresponding angle theorem)
Corresponding angles are the angles that are formed in matching corners or corresponding corners with the transversal when two parallel lines are cut by the traversal.
∠7 ≅ ∠5 (vertical angle theorem)
Vertical angles theorem or vertically opposite angles theorem:
According to the theorem, two opposing vertical angles that are created when two lines cross one other are always equal.
Vertical angles are the angles formed when two lines intersect each other.
∠1 ≅ ∠7 (Transitive property of congruence)
Transitive property of congruence: If two lines, angles, or triangles are congruent with one another, then the first line, angle, or triangle is congruent with the second, third, or fourth line, angle, or triangle.
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The given statement states that a transversal line intersects two parallel lines, a and b, with corresponding angle congruent pairs of (1, 5), (4, 8), (3, 7), and (2, 6). The proof uses the corresponding angles theorem, vertical angles theorem, and transitive property of congruence to show that the angles are congruent.
Given 2. Corresponding angles theorem 3. Vertical angles theorem 4. Transitive property of congruence Reasons: 1. The transversal line intersects two parallel lines a and b with values of corresponding angles congruent pairs of (1, 5), (4, 8), (3, 7), and (2, 6). 2. If two parallel lines are cut by a transversal, then the pairs of corresponding angles are congruent. 3. If two angles are vertical angles, then they are congruent. 4. If two angles are congruent to the same angle, then they are congruent to each other.
The given statement states that a transversal line intersects two parallel lines, a and b, with corresponding angle congruent pairs of (1, 5), (4, 8), (3, 7), and (2, 6). The proof uses the corresponding angles theorem, vertical angles theorem, and transitive property of congruence to show that the angles are congruent.
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Does someone know how to do this we have a sub
Answer:
1/5, 20 diveded by 5 is 4, 20%
HELP ME. What is 12*2/2*100?
Answer:
1200
Step-by-step explanation:
12 multiplied by 2 is 24.
24 divided by 2 is 12.
12 times 100 is 12 plus 2 zeros, or 1200.
What are the properties of centroid of a triangle?
The centroid is the point at which the three medians of the triangle meet, divides each median proportionally, is always inside the triangle, equidistant from each vertex, and is the center of gravity.
1. The centroid of a triangle is the point at which the three medians (the lines connecting each vertex to the midpoint of the opposite side) of the triangle meet.
2. The centroid divides each median into two segments that are proportional to the lengths of the sides of the triangle.
3. The centroid is always inside the triangle, regardless of its shape.
4. The centroid is always equidistant from each vertex of the triangle.
5. The centroid is the center of gravity of the triangle, meaning that it is the point at which the triangle would balance if it were suspended.
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The properties of centroid of the triangle is explained below.
The term triangle is defined as the polygon with three sides, three vertices and three angle in it.
Here we need to list down the properties of the centroid of the triangle.
In order to identify the properties, first we must know the defnition of centroid.
The term centroid in math is defined as the point that is presented in at 2/3 of the distance from the vertex to the mid-point of the sides.
Here we know that the centroid has the special property that, here for each median, and the distance from a vertex to the centroid is twice that of the distance from the centroid to the midpoint of the side opposite that vertex. Here we also that the three medians of a triangle divide the triangle into six regions of equal area.
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The main purpose of descriptive statistics is to Multiple Choice summarize data in a useful and informative manner. make inferences about a population. determine if the data adequately represent the population. gather or collect data.
Descriptive statistics are used to summarize data in a useful and informative manner.
What is Statistics?This type of statistics provides meaningful information about the data set by organizing and presenting it in an easily understandable format. Descriptive statistics can be used to summarize the data in the form of tables, graphs, and charts. It can also be used to provide detailed information about the data set, such as the mean, median, mode, standard deviation, and range.
Descriptive statistics can also be used to make inferences about a population. This is done by comparing the data collected from a sample to the characteristics of the population. By understanding the characteristics of the population, researchers can make accurate predictions about the behavior of the population.
Descriptive statistics can also be used to determine if the data adequately represent the population. This involves analyzing the sample size, data accuracy, and the assumptions made about the population. If the data does not accurately represent the population, then researchers have to make changes to their data collection process or revise their assumptions about the population.
Finally, descriptive statistics can be used to gather or collect data. This involves designing surveys, experiments, and other data collection methods. By using descriptive statistics to collect data, researchers can ensure that the data is valid and reliable.
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What is the area of the triangle?
Calculating the area of a triangle:
[tex]A=\frac{1}{2}bh[/tex]
A = areab = baseh = height1. determine base and height measurements
the base is always the side length that forms a perpendicular line with the opposite vertex.2. apply the formula
[tex]A=\frac{1}{2}(12m)(8m)\\[/tex]
[tex]A = 48m^2[/tex]
If f(x) = x² - 2x, find:
ƒ(5) = [?]
Answer:
15
Step-by-step explanation:
to find f(5), all you do is substitute 5 for both of the x's. do this in a calculator and you'll get the same thing as i did.
Which value of x is the solution to the equation?
3x = 6
Responses
x = 2
x, = 2
x = 3
x, = 3
x = 4
x, = 4
x = 18
x, = 18
Answer:
x = 2
Step-by-step explanation:
6/3 = 2
Jamir made 48 cookies for a picnic. He wants to give each of his 3 friends an equal number of cookies. How many cookies will each of Jamir's friends get
Answer:
16
Step-by-step explanation:
48 divided by 3 is 16, so each of his friends will get 16 cookies.
A manufactured component has its quality graded on its performance, appearance and cost. each of these 3 characteristics is graded as either pass or fail. there is a probability of 0.4 that a component passes on both appearance and cost. there is a probability of 0.31 that a component passes on all 3 characteristics. there is a probability of 0.64 that a component passes on performance. there is a probability of 0.19 that a component fails on all 3 characteristics. there is a probability of 0.06 that a component passes on appearance but fails on both performance and cost. (a) what is the probability that a component passes on cost but fails on both performance and appearance? (b) if a component passes on both appearance and cost, what is the probability that it passes on all 3 characteristics?
A) p component passes on cost but fails on performance and appearance is equal to 0.02 and B) p(Comment passes on all three characteristics component passes on both ) is = 0.775
p=Component passes on performance.
Q=Component passes on appearance.
R=Component passes on cost.
we have, ( Component passes on both appearance and cost)
=p(Q∩R)
=0.40
P(Component passes on all three characteristics)
=p(p ∩ Q ∩ R)
=0.31
P(Component passes on performance)
p(p) =0.64
P(Components fails on all three characteristics)
=P(p ∩ Q ∩ R)
=0.06
(a) What is the likelihood that a component saves money but fails in terms of performance and appearance?
p( P ∩ Q ∩ R)
=P(P∩Q)-P(P∩Q∩R)
=(P(P)-P(P∩Q))-0.19
=1-0.64-P(P∩Q)-0.19
=0.17-P(P∩Q)
=0.17-P(P∩Q∩R)-0.06
=0.11-P(Q∩R)-P(P∩Q∩R)
=0.11.(0.40-0.31)
=0.02
B) What is the likelihood that a component will pass on all three characteristics?
if it passes on both appearance and cost:
P(P∩Q∩R|Q∩R)
P(P∩Q∩R|Q∩R)=P(P∩Q∩R)/P(Q∩R)
=0.31/0.40
=0.775
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NEED HELP ASAP - Algebra 2
Is it possible for an exponential equation to have two different solutions? If not, explain your reasoning. If so, give an example.
It is possible for an exponential equation to have two different solutions. This is true.
What is an exponential equation?An exponential equation is an equation in which the variable appears in an exponent. For example, an equation of the form f(x) = a^x is an exponential equation, where a is a constant and x is the variable.
In general, exponential equations can have multiple solutions. For example, the equation 2^x = 8 has two solutions, x = 3 and x = -1/3. The reason for this is that the exponential function, f(x) = a^x, is periodic, so it repeats its values after a certain interval.
In the case of exponential equations which is having a base that is greater than 1 , such as 2^x = 8, in such cases it will have two solutions as it will be increasing for all x.
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Solve the system by graphing. please Help
Answer:
Solution is (-1,7)
Step-by-step explanation:
Graph is shown
y=2x+9 is in red
y=6-x is in blue
Hope this helps :)
complete the ratio tables this is my last question on my homework someone please help!
The values in the ratio table are as follows:
401472What is a ratio table?A ratio table is just a table that shows how two different quantities relate to one another. Ratio tables are useful for understanding how two different quantities relate to one another.
Given a ratio table that has the initial ratio of 4
For the first column
Ratio = 8/2 = 4
For the second column
Ratio = x/10
Since the ratio will be the same
=> 4 = x/10
=> x = 40
For the third column
Ratio = 56/x
=> 4 = 56/x
=> x = 14
For the fourth column
Ratio = x / 18
x = Ratio *18
x = 72
Therefore, The values in the ratio table will be 40, 14, and 72
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What is the median age of a family whose
members are 42,38 14, 12, 10, 8 years old.
Answer:
13
Step-by-step explanation:
8, 10, 12, 14, 38, 42
12+14/2 = 13
A fair die is rolled 5 times. What is the expected sum of the 5 rolls?
Answer:
5-30
Step-by-step explanation:
expectation of single
The graphs of the equations Ax+By=7 and Ax-By=3 intersect at (1,-2).
Determine the value of A and B
please show work :)
Step-by-step explanation:
we create 2 equations with 2 variables by using the given point coordinates in both :
A×1 + B×-2 = 7
A - 2B = 7
A×1 - B×-2 = 3
A + 2B = 3
to solve we can simply add both equations to temporarily eliminate B and solve for A :
A - 2B = 7
A + 2B = 3
-------------------
2A 0 = 10
A = 10/2 = 5
now, we use one of the original equations to solve for B :
5 + 2B = 3
2B = -2
B = -2/2 = -1