Answer:
b
Step-by-step explanation:
100/5= 20
he was charhed 20
25 ft 8 yd 11 in.
Which is greater?
Answer:
25 ft
Step-by-step explanation:
8 yd = 24 ft
11 in < 1 ft
8 yd < 25 ft
Cathy wants to determine the height of the flagpole shown in the diagrain below. She uses a
survey instrument to measure the angle of elevation to the top of the flagpole, and deterinines it
to be 34. 9º. She walks 8 meters closer and deterinines the new measure of the angle of elevation
to be 52. 8º. At each measurement, the survey instruinent is 1. 7 meters above the ground.
52. 8°
34. 90
A 1. 7 m
-8 m
Detetinine and state, to the nearest tenth of a meter, the height of the flagpole.
Answer:
She walks. 8 meters closer and determines the new measure of the angle of elevation to be 52.8°. At each measurement, the survey instrument is 1.7 meters above
Step-by-step explanation:
The height of the flagpole is 13.56 m.
What is Trigonometry?One area of mathematics known as trigonometry examines the relationship between the sides and angles of a right triangle. The relationship between sides and angles is defined for 6 trigonometric functions.
Using Trigonometry
tan 52.8 = (h- 1.7)x
h- 1.7 = x tan 52.8
and, tan 34.9 = (h- 1.7) / (x + 8)
(x + 8) tan 34.9 = h - 1.7
So, x tan 52.8 = (x + 8) tan 34.9
tan 52.8 / tan 34.9 = (x + 8)/ x
1.88852217 = 1 + x/8
x = 9.00371408
Then, tan 52.8 = (h - 1.7)/ 9
h = 13.56 m
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Solve for c.
8 = c − 1
c =
Answer:
9
Step-by-step explanation:
9-1=8 hence c=9
Answer:
c = 9
Step-by-step explanation:
9 - 8 = 1
Hope this helps!!
I need help fast plss
The measures of the angles are ∠1 = 127°, ∠2 = 53°, ∠3 = 127°, ∠4 = 37°, ∠5 = 53°, ∠6 = 90°, ∠7 = 37°, ∠8 = 143°, ∠9 = 37° and ∠10 = 143°
Finding the measures of the anglesFrom the question, we have the following parameters that can be used in our computation:
The transversal lines and the other lines
So, we have
∠1 = 180 - 53
Evaluate
∠1 = 127°
Also, we have
∠5 = 53°
By vertical angles, we have
∠2 = 53°
∠3 = 127°
Next, we have
∠4 = 127 - 90°
∠4 = 37°
Solving further, we have
∠6 = 90°
By corresponding angles, we have
∠7 = 37°
∠9 = 180 - 90 - 53°
∠9 = 37°
∠10 = 90 + 53°
∠10 = 143°
∠8 = 143°
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30. In the figure below, rectangle ABCD shares CD with ACDE,
diagonal BD of the rectangle extends in a straight line
beyond D to E to create DE, and the measure of CDE is
155°.
What is the measure of ZCBD?
F. 25
G.55
H.65
J.90
K.155
The measure of angle ZCBD is 90°. Therefore, the correct option is J. 90.
To find the measure of angle ZCBD, we need to examine the given information.
From the figure, we know that angle CDE is 155°.
Since the opposite angles of a rectangle are congruent, angle BCD is also 155°.
In a rectangle, the sum of the interior angles at a vertex is always 90°.
Therefore, angle CBD is 90°.
Hence, the measure of angle ZCBD is 90°.
Therefore, the correct option is J. 90.
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Solve pls brainliest
Answer:
If u double both numerator & denominator, this ration is 46/100
This answer is 46%
Write the ratio as a fraction in simplest form.
35 girls : 15 boys
The ratio as a fraction in simplest form is
.
Answer:
15/35
Step-by-step explanation:
I think it's right sorry if I'm wrong
Answer:
7/3
Step-by-step explanation:
points m and n are two vertices of a right triangle. they are the endpoints of the hypotenuse mn of the triangle. the third vertex lies in the fourth quadrant
Answer:
HEY IMAGE IS BLUR
Step-by-step explanation:
Type the correct answer in each box. use numerals instead of words. if necessary, use / for the fraction bar. given the directrix and the focus what is the vertex form of the equation of the parabola? the vertex form of the equation is .
The required equation of the parabola in the vertex form is \(x = - \frac{1}{6} (y+5)^2+\frac{9}{2}\)
What is a parabola?A plane curve generated by a point moving so that its distance from a fixed point is equal to its distance from a fixed line is called a parabola.
Given that, a parabola has the directrix x=6 and the focus (3,-5), we need to find the equation of the parabola,
The standard form of a left-right parabola is given as:
4p(x-h) = (y-k)²
Focus = (p+h, k)
Therefore,
h+p = 3....(i)
Directrix =
x = h-p
h-p = 6...(ii)
Solving the equations we get,
h = 9/2
p = -3/2
Substitute into the standard form:
4p(x-h) = (y-k)²
4(-3/2)(x-9/2) = (y+5)²
-6(x-9/2) = (y+5)²
\(x = - \frac{1}{6} (y+5)^2+\frac{9}{2}\)
Hence, the required equation of the parabola in the vertex form is \(x = - \frac{1}{6} (y+5)^2+\frac{9}{2}\)
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The question is incomplete so, i solved for the attached question
Evaluate this expression:
10x^2-5x+10 When x= -3
Step-by-step explanation:
10x² - 5x + 10
x = -3
10(-3)² -5(-3) + 10
= (10×9) + 15 + 10
= 90 + 15 + 10
= 115
The production function is used to examine the relationship between _________.
Select the correct answer below:
supply and demand
producers and consumers
price and cost
inputs and outputs
The production function is used to examine the relationship between inputs and outputs.
The production function is a fundamental concept in economics that represents the relationship between inputs and outputs in the production process. It helps us understand how much output can be produced with a given set of inputs.
In the production process, inputs such as labor, capital, raw materials, and technology are combined to produce goods or services. The production function captures the quantitative relationship between these inputs and the resulting output. It provides a framework to analyze how changes in input levels affect the output level.
The production function typically takes the form of a mathematical equation or a graphical representation. It shows how the quantity of output depends on the quantities of various inputs used in the production process.
By studying the production function, economists can analyze factors such as efficiency, productivity, and technological progress. It helps firms make decisions regarding the optimal combination of inputs to maximize output or minimize costs. Additionally, it allows policymakers to assess the impact of policies on production and economic growth.
Therefore, the production function primarily focuses on examining the relationship between inputs and outputs, rather than supply and demand, producers and consumers, or price and cost.
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evaluate each expression; 6t + 9 - 22; t = 60
We have the next expression
\(6t+9-22\)if t=60
Then we evaluate the expression with the value of t given
\(6(60)+9-22=347\)the result is 347
Let T be a normal operator on a finite-dimensional complex inner product space V. Use the spectral decomposition T = 1171 + ... + dette to prove: (a) If T" is the zero map for some n e N, then T is the zero map. (b) U EL(V) commutes with T if and only if U commutes with each aj. (c) There exists a normal U E L(V) such that U2=T. (d) T is invertible if and only if ; 70 for all j. (e) T is a projection if and only if 1; = 0 or 1 for all j. (f) T = -T* if and only if X; is imaginary.
For T to be a normal operator on a finite-dimensional complex inner product space V,
(a) If Tⁿ is the zero map, then T is the zero map.
(b) U commutes with T if and only if U commutes with each eigenprojection of T.
(c) There exists a normal U such that U² = T.
(d) T is invertible if and only if lambda_j is nonzero for all eigenvalues λ_j of T.
(e) T is a projection if and only if lambda_j is either 0 or 1 for all eigenvalues λ_j of T.
(f) T = -T* if and only if each eigenvalue of T is imaginary.
(a) If Tⁿ = 0 for some n ∈ ℕ, then the characteristic polynomial of T is p_T(x) = xⁿ. But by the spectral decomposition, the characteristic polynomial of T is given by p_T(x) = (x - λ₁)(d₁) × ... × (x - λ_k)(d_k), where λ₁, ..., λ_k are the distinct eigenvalues of T and d₁, ..., d_k are the dimensions of the corresponding eigenspaces. Since T is normal, the eigenspaces are orthogonal and hence the dimensions add up to the dimension of V. Thus we must have n = dim(V), which implies that T is the zero map.
(b) Let U be a linear operator on V that commutes with T. By the spectral decomposition, we can write T = λ₁P₁ + ... + λ_kP_k, where P₁, ..., P_k are orthogonal projections onto the eigenspaces of T. Since U commutes with T, we have U(P_i(v)) = P_i(U(v)) for any eigenvector v of T. It follows that U commutes with each P_i. Conversely, suppose U commutes with each P_i. Then we have U(T(v)) = U(λ_i P_i(v)) = λ_i U(P_i(v)) = λ_i P_i(U(v)) = T(U(v)) for any eigenvector v of T. Since the eigenvectors span V, this implies that U commutes with T.
(c) Let T = λ₁P₁ + ... + λ_kP_k be the spectral decomposition of T. Define U = λ₁(1/2)P₁ + ... + λ_k(1/2)P_k. Since T is normal, the eigenspaces are orthogonal and hence the projections P₁, ..., P_k are also orthogonal. It follows that U is also an orthogonal operator, and hence a normal operator. Moreover, we have U² = λ₁P₁ + ... + λ_kP_k = T.
(d) By the spectral theorem for normal operators, we can write T = λ₁P₁ + ... + λ_kP_k, where λ₁, ..., λ_k are the distinct eigenvalues of T and P₁, ..., P_k are orthogonal projections onto the corresponding eigenspaces. Moreover, we have T⁻¹ = λ₁⁻¹P₁ + ... + λ_k⁻¹P_k if all the eigenvalues are nonzero. Indeed, if all the eigenvalues are nonzero, then T is invertible and hence bijective. It follows that each eigenspace has a dimension at most 1, and hence T has a unique decomposition into a sum of orthogonal projections onto its eigenspaces. It is then easy to check that T⁻¹ has the desired decomposition. Conversely, suppose that T⁻¹ has the desired decomposition. Then we have T(T⁻¹(v)) = v for any v ∈ V. It follows that each eigenspace has dimension at most 1, and hence T is bijective, and hence invertible.
(e) By the spectral theorem for normal operators, we can write T = λ₁P₁ + ... + λ_kP_k, where λ₁, ..., λ_k are the distinct eigenvalues of T and P₁, ..., P_k are orthogonal projections onto the corresponding eigenspaces. It follows that T is a projection if and only if T² = T, which is equivalent to the condition that λ_i ∈ {0, 1} for all i.
(f) By the spectral theorem for normal operators, we can write T = λ_1 P_1 + ... + λ_k P_k, where λ_1, ..., lambda_k are the distinct eigenvalues of T and P_1, ..., P_k are the orthogonal projections onto the corresponding eigenspaces. Note that T is self-adjoint if and only if T = T*, or equivalently, λ_j is real for all j. On the other hand, T = -T* if and only if λ_j = -λ_j × for all j, or equivalently, lambda_j is imaginary for all j. Thus, T = -T* if and only if each λ_j is imaginary, as desired.
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b/30 = 2.6/1.5 solve the proportion Help PLEASE!!
Answer:
\(b = 52.000000\)
Step-by-step explanation:
1) Simplify 2.6/1.5 to 1.733333.
\( \frac{b}{30} = 1.733333\)
2) Multiply both sides by 30.
\(b = 1.733333 \times 30\)
3) Simplify 1.33333 × 30 to 52.000000.
\(b = 52.000000\)
Therefor, the answer is b = 52.000000.
Two ships B and C are both due east of a point A at the bas is 130 metres high. The ship at C is 350 metres from the bottom of the cliff. (a) (b) (ii) Calculate the distance from the top of the cliff to the ship at C. Calculate the angle of depression from the top of the cliff to the ship at C. 130 m A (33 B 350 m The angle of elevation of the top of the cliff from the ship at B is 33°. Calculate the distance BC.
The distance from the top of the cliff to the ship at C 373.4 m.
The angle of depression from the top of the cliff to the ship at C is 20.4 degrees
The distance BC = 200.2m
How to find the distancethe distance is given as
\(\sqrt{130^{2} +350^{2} }\)
= 373.4 m
The distance of the top of the cliff to the ship at c is 373.4 m
angle of depression is tan ∅ = 130 / 350
∅ = tan⁻¹ 130 / 350
= 20.4 degrees
b. The distance BC
tan 33 = 130 / AB
AB = 130 / tan 33
= 200.2 m
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{(-5,1),(-3,9), (4,6), (4, -2)}
A) function
B) not a function
Answer:
Step-by-step explanation:
It is not a function
The 4 in the domain is used more than once
Three circles with radii of 4, 5, and 6 cm, respectively, are tangent to each other externally. Find the angles of the triangle whose vertexes are the centers of the circles.
Note that the angles of the triangle whose vertexes are the centers of the circles are 50.48°, 58.99°, 70.53°.
How is this so?Three circles with radii 4, 5, and 6 from a triangle whose sides are the sum of their radii in pairs.
Thus, the sides of the triangle are
4 + 5, 4 + 6, and 5+6.
⇒ 9,, 10, 11.
To find the interior angles
CosC = a² + b² + c²/ 2ab
Cost C = (9² + 10² -11²) / (2 x9x10)
= 81 + 100 -121/180
= 60/180
= 1/3
C = 70.53°
Similar
Cos A = (10² + 11² - 9²) / (2 x10x11)
= 100 + 12181 + /180
= 140/220
= 7/11
A = 50.48°
Cos B = 9² + 11² - 10²/ 2x 9 x 11
= 102/198
B = 58.99°
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Full Question:
Although part of your question is missing, you might be referring to this full question:
See attached image.
plz help asap!!!! thank you!!!........
Answer:
choice 1) 312 cm²
Step-by-step explanation:
area = (16 x 12) + (10 x 12) = 312 cm²
Answer:
312
Step-by-step explanation:
triangle:
10x12/2=60
two triangle:
60x2=120
rectangle:
16x12=192
add up:
120+192=312
help with algebraic expressions!
Answer:
Part A: A = πr^2
Part B: 153.86
Step-by-step explanation:
r = 7
A = (3.14)(7^2)
A = (3.14)(49)
A = 153.86
when solving a linear differential equation by using an integrating factor, what property from calculus makes the process work?question 7 options:chain rule for derivativesintegration by partsproduct rule for derivativesquotient rule for derivatives
The property that makes the process work is integration by parts .
Given,
When solving a linear differential equation by using an integrating factor, what property from calculus makes the process work .
Here,
When applying the concept of integrating factor in calculating the solution of linear differential equation the property used is integration by parts .
IF = \(e^{\int\ {p} \, dx }\)
Thus option B will be correct choice for the question.
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Correct question:
Q
When solving a linear differential equation by using an integrating factor, what property from calculus makes the process work
options:
1) chain rule for derivatives
2) integration by parts
3)product rule for derivatives
4) quotient rule for derivatives
A salesman earns 20% commission on all merchandise that he sells. Last month he sold $700 worth of merchandise. How much commission (in dollars) did he earn last month?
Answer:
140$
Step-by-step explanation:
You can use the three rule step.
20% ?
-------=------------
100%. 700$
Then u go 20 x 700 divided by 100 which gives you the 20% in $
2. One candle, in the shape of a right circular cylinder, has a
height of 7.5 inches and a radius of 2 inches. What is the
volume of the candle? Show your work and round your
answer to the nearest cubic inch.
Use 3.14 for pi
The volume of the candle is approximately 94 cubic inches.
What is circular cylinder?
A circular cylinder is a three-dimensional solid object made up of two parallel and congruent circular bases and a curving surface connecting the bases.
The volume of a right circular cylinder is given by the formula:
V = πr²h
Where
V is the volumer is the radiush is the heightSubstituting the given values into the formula, we get:
V = 3.14 x 2² x 7.5
V = 3.14 x 4 x 7.5
V = 94.2
Rounding to the nearest cubic inch, we get:
V ≈ 94 cubic inches
Therefore, the volume of the candle is approximately 94 cubic inches.
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The holcombe family went out to dinner the meal cost 54.65 the sales tax is 8 peecent the tip was 18 percent of the meal and tax there are 5 people in the holcomebe family what was the cost per person for the meal including sales tax and tip
Answer:
13.93
Step-by-step explanation:
Meal = 54.65
Sales tax = 8%
= 8/100 * 54.65 + 54.65
= 0.08 * 54.65 + 54.65
= 4.372 + 54.65
= 59.022
Tip = 18% of the meal and tax
= 18/100 * 59.022 + 59.022
= 0.18 * 59.022 + 59.022
= 10.62396 + 59.022
= 69.64596
Total people in the holcomebe family = 5
Cost of meal per person =
69.64596 / 5
= 13.929192
Approximately 13.93
the measures of the bases of a trapezoid are 35 and 71. find the measure of the midsegment.
The length of midsegment of the trapizoid with bases 35 and 71 is 53.
What is a Trapizoid ?A trapezoid, commonly referred to as a trapezium, is a quadrilateral or a polygon with four sides. It has a set of parallel opposing sides and a set of non-parallel sides. The bases and legs of the trapezoid are known as the parallel and non-parallel sides, respectively.
A trapezoid is a closed, four-sided, two-dimensional shape that has both a perimeter and an area. The bases of the trapezoid are the two sides of the form that are parallel to one another. The legs or lateral sides of a trapezoid are the non-parallel sides. The altitude is the smallest distance between two parallel sides. Calculating a trapezoid's area is easy since its opposite sides are parallel to one another.
A trapezoid differs from other quadrilaterals in that it has the following characteristics:
The top and bottom bases are parallel to one another.A trapezoid's opposite sides (isosceles) are equal in length.Angles close to one another add up to 180 degrees.Both of the bases are parallel to the midline.The median length is the average of the two bases. i.e. (a +b)/2A trapezoid is referred to as a parallelogram if both pairs of its opposite sides are parallel.A trapezoid can be thought of as a square if all sets of opposing sides are parallel, all sides are equal length, and all sides are at right angles to one another.A trapezoid can be thought of as a rectangle if its opposite side pairs are all parallel, equal in length, and at right angles to one another.The length of midsegment is sum of bases divided by 2
therefore midsegment = (35 + 71)/2 = 53.
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find the equation of the line that is parallel to y=3x+8 and passes through the point (6,-3)
Step-by-step explanation:
Slope of the given line is 3, so slope of the perpendicular line is also 3.
using pt slope form,
y+3=3(x-6)
y+3=3x-18
y=3x-21
Question 2
What is closest to the length of the missing side?
10 cm
8 cm
What is the order of sides of DEF from shortest to longest
Answer:
DONT GO TO THE LINK
Step-by-step explanation:
8.) Order the following numbers Smallest to dargest on a number explain. your reason soning. 7, √53,1 34, 6, √ 25
Given the numbers:
\(7,\sqrt[]{53},\sqrt[]{34},6,\sqrt[]{25}\)We will arrange the numbers from the least to the greatest
there are two methods:
First, square all the numbers then arrange them then get the original numbers
so, the square of the numbers will be:
\(49,53,34,36,25\)the order from the least to the greatest will be:
\(25,34,36,49,53\)So, the order of the given numbers will be:
\(\sqrt[]{25},\sqrt[]{34},6,7,\sqrt[]{53}\)the second method is by using the calculator to find the square roots of the radicals, it will give the same answer
How many three-digit numbers can you make if you are not allowed to use any other digits except 1 and 2? (You may use 1 and 2 in a number more than once or not at all!)
The first digit can be 1 or 2.
For each one ...
The second digit can be 1 or 2.
For each one ...
The third digit can be 1 or 2.
That's (2•2•2)= 8 different possibilities.
can someone please help me??? i really need it!!!
Answer:
150 degrees
Step-by-step explanation:
I think V and T add up to 180 degrees (and all angles in a whole quadrilateral add up to 360) so if you add them and make it equal 180 you can solve x.
So x + 3x + 60 = 180
4x = 120
x = 30 degrees
So V is 3(30) + 60 = 150 degrees