Find measure of each angle(pic included)

Find Measure Of Each Angle(pic Included)

Answers

Answer 1

Answer:

  m∠D = m∠E = 80°

Step-by-step explanation:

You want the measures of the angle of elevation (∠E) from A to B and the angle of depression (∠D) from B to A when they are described by the expressions 7x-4 and 4(x+8), respectively.

Angles

The angle of elevation and the angle of depression between the same two points have the same measures.

  m∠E = m∠D

  7x -4 = 4(x +8)

  7x -4 = 4x +32

  3x = 36 . . . . . . . . add 4-4x to both sides

  x = 12 . . . . . . . . divide by 3

  4(x +8) = 4(20) = 80 . . . . . . . . find the angle measures

Each of the angles has a measure of 80°.


Related Questions

(a) A company manufactures 15-inch laptops and 17-inch laptops. It takes 3 hours to manufacture a 15-inch laptop and 5 hours to manufacture a 17-inch laptop. Each 15-inch laptop has 256 GB of memory and each 17-inch laptop has 512 GB of memory. The company has 480 hours available and parts for 43,520 GB of memory. The company makes a profit of $2000 on each 15-inch laptop and $3000 on each 17-inch laptop.

Answers

Answer:

We can start by using the information provided to calculate how many laptops of each size the company can manufacture within the 480 hours available:

15-inch laptops: 480 hours / 3 hours per laptop = 160 laptops

17-inch laptops: 480 hours / 5 hours per laptop = 96 laptops

With the 480 hours available and the number of laptops that can be manufactured, we can calculate the total amount of memory that can be used:

15-inch laptops: 160 laptops x 256 GB per laptop = 40,960 GB

17-inch laptops: 96 laptops x 512 GB per laptop = 49,152 GB

Since the company has 43,520 GB of memory available, it can manufacture:

15-inch laptops: 43,520 GB / 256 GB per laptop = 170 laptops

17-inch laptops: 43,520 GB / 512 GB per laptop = 85 laptops

The company can manufacture 170 15-inch laptops and 85 17-inch laptops.

Now, we can calculate the profit that the company can make:

15-inch laptops: 170 laptops x $2000 per laptop = $340,000

17-inch laptops: 85 laptops x $3000 per laptop = $255,000

So, the company can make a total profit of $595,000 from the 170 15-inch laptops and 85 17-inch laptops.

The company can manufacture 170 15-inch laptops and 85 17-inch laptops, and make a total profit of $595,000.

Step-by-step explanation:

Determine if the triangles in each pair are similar. If so, write a similarity statement and state whether AAA, SAS, Or SSS

Answers

By the Angle - Angle - Angle criteria both ΔDEF and ΔSTR are Similar to each other.

Similar triangles:

Two triangles are said to be similar triangles if all three corresponding angles are equal or if all three sides are equal. The symbol "∼" is used to represent the similarity between two triangles.    

AAA Similarity Criterion for Two Triangles:

When three angles in two triangles are equal then the two triangles are said to be similar triangles.    

Here we have

ΔDEF and ΔSTR

From ΔDEF  

∠D = 46° and ∠E = 46°  

As we know the sum of angles in a triangle = 180°

=> ∠D + ∠E + ∠F = 180°

=> 46° + 46° + ∠F = 180°

=> ∠F = 180 - 46 - 46

=> ∠F = 88°

Similarly, In ΔSTR  

=> ∠ T = 88°  

Thus,

Three corresponding angles of ΔDEF and ΔSTR are equal

Therefore,

By the Angle - Angle - Angle criteria both ΔDEF and ΔSTR are Similar to each other.

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What is the following product?
√√4x² √√4x²
O 4x²
O 16x4
O2 14x4
O
16x4

Answers

Answer: 4[tex]x^{2}[/tex]

Is The answer.

The solution is, The correct answer is option B). 7x² -12x√14 + 72

What is  multiplication?

In mathematics, multiplication is a method of finding the product of two or more numbers. It is one of the basic arithmetic operations, that we use in everyday life.

here, we have,

we know that,

Identity

(a - b)² = a² - 2ab + b²

Find the product

It is given that ( x√7 - 3√8)(x√7 - 3√8)

(x√7 - 3√8)(x√7 - 3√8) =  (x√7 - 3√8)²

(x√7 - 3√8)² =  (x√7)² - 2*x√7*3√8 +(3√8)²

= 7x² - 6x√56 + 72

= 7x² - 6x*2√14 + 72

= 7x² - 12x√14 + 72

Therefore the correct answer is option B).  7x² - 12x√14 + 72

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Complete question:

What is the following product?

( x√7 - 3√8)(x√7 - 3√8)

Which statement is true about the points shown on the number line?

Answers

Option B is a correct representation of the given number line,  -3.8 < 1.5, and is located to the left of 1.5.

What is a number line?

A number line is a visual depiction of numbers on a straight line drawn either horizontally or vertically. It is simple for humans to compare numbers and carry out simple arithmetic operations on them when they are written down on a number line. A number line is thought to begin at zero (0). Left of zero, there are only negative numbers, and right of zero, there are only positive numbers.

Given a number line and two points marked on it,

-3.8 and 1.5

we find from the number line that -3.8 lie left to 1.5,

and the negative numbers are always less than the positive numbers,

so -3.8 is less than 1.5,

-3.8 < 1.5, and lie left to 1.5.

Hence, option B is correct.

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Find equation of the line that passes through the point a and point b

A=(4,7) B=(
2,3)

Answers

Answer:

y = 2x - 1

Step-by-step explanation:

A = (4,7)

B = (2,3)

Use slope formula [tex]\frac{(y2 - y1)}{(x2 - x1)}[/tex]:

[tex]\frac{3 - 7}{2 - 4}[/tex]

[tex]\frac{-4}{-2}[/tex]

2 is our slope

Solve for b by plugging in both values for either coordinate or A and B. I will use coordinate B for this answer.

y = 2x + b

3 = 2(2) + b

3 = 4 + b

-1 = b

Our final equation is [y = 2x - 1]

if line ST is congruent to line SV, TU=w+10, and UV=2w what is the value of w

Answers

If line ST exists congruent to line SV, TU=w+10, and UV=2w then the value of w exists 10.

What does congruent line mean?

If two line segments are congruent to one another and are the same length, then they are said to be equal. The angles they make with an axis or location in the plane may or may not be the same.

Congruence between two line segments indicates that their lengths are equal. Two shapes are said to be congruent if they correspond throughout if you take one up and place it on the other (they will match up perfectly and you will not be able to see the one on the bottom).

If line ST exists congruent to line SV, TU = w + 10, and UV = 2w.

TU = UV

substitute the values of TU and UV in the above equation, we get

w + 10 = 2w

simplifying the equation, we get

w = 2w - 10

-w = -10

Divide both sides by -1

[tex]$\frac{-w}{-1}=\frac{-10}{-1}$$[/tex]

w = 10

Therefore, the values of w exists 10.

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Round the underlined digit to its nearest place value: 84.68=​

Answers

Answer:

84.68

Rounded to the nearest 0.01 or

the Hundredths Place.

Step-by-step explanation:

84.68_

You rounded to the nearest hundredths place. The 8 in the hundredths place rounds down to 8, or stays the same, because the digit to the right in the thousandths place is _.

84.68

When the digit to the right is less than 5 we round toward 0.

84.68 was rounded down toward zero to 84.68

A two-digit number is 3 times the sum of its digits. The number is also 45 less than the number formed by reversing the digits of the original
number. What is the original number?

Answers

The original number is 27

What is an equation?

An equation is a mathematical statement that proves two mathematical expressions are equal in algebra, and this is how it is most commonly used. In the equation 3x + 5 = 14, for instance, the two expressions 3x + 5 and 14 are separated.

Let x be  the 10's digit
let y be  the units digit

Given: A two digit number is 3 times the sum of it's digits.

=> 10x + y = 3(x+y)

10x + y = 3x + 3y

10x - 3x = 3y - y

7x = 2y......(1)

Given: The number is also 45 less than the number formed by reversing the digits and the original number.

=> 10x + y = 10y - x - 45

10x - x = 10y - y - 45

9x = 9y - 45

divide both sides by 9

x = y - 5............(2)

replace x with (y-5) in the equation 1

7(y-5) = 2y

7y - 35 = 2y

7y - 2y = 35

5y = 35

y = 35/5

y = 7 is the units digit (original number)

and

x = 7 - 5

x = 2 is the 10's digit

Thus, the original number is 27

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Jose volunteered for a total of 34.4 hours. If he volunteered for 0.4 hours each day, for how many days did he volunteer?

Answers

For 86 days Jose had volunteered.

What are equivalent ratios?

The ratios that are same when compared are called equivalent ratios. The equivalentity of two or more ratios can be determined by comparing them to one another. For instance, 1:2 and 2:4 have the same ratio.

A unit rate is a cost for only one of anything. This is expressed as a ratio with a denominator of 1. For instance, if you covered 70 yards in 10 seconds, you did so at an average speed of 7 yards per second. Although both of the ratios—70 yards in 10 seconds and 7 yards in one second—are rates, only the latter is a unit rate.

Let x be the total days

equate the ratios of days and hours as shown:

x/34.4 = 1/0.4

=> x= 34.4/ 0.4 = 86

So, for 86 days Jose had volunteered.

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To create an entry​ code, you must first choose 3 letters and​ then, 3 ​single-digit numbers. How many different entry codes can you​ create?

Answers

The number of entry codes will be 720.

What are permutation and combination?

The different ways in which items from a set may be chosen, usually without replacement, to construct subsets, are called permutations and combinations.

When the order of the selection is a consideration, this selection of subsets is referred to as a permutation; when it is not, it is referred to as a combination.

Given that you must first choose 3 letters and​ then, 3 ​single-digit numbers.

The number of arrangements will be calculated as,

Codes = 6!

Codes = ( 6 x 5 x 4 x 3 x 2 x 1 )

Codes = 720

Hence, the combination of the code will be 720.

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Aubrey and Charlie are driving to a city that is 120 mi from their house. They have already traveled 20 mi, and they are driving at a constant rate of 50 mi/h. Complete the function that models the distance they drive as a function of time. Then complete a reasonable domain for this situation.

function notation in slope-intercept form: f(x) =
reasonable domain:
≤ x ≤

Answers

The function that models the distance they drive as a function of time is; 120 = 50t + 20

The required domain is;. 0 ≤ t ≤2

How to find the domain of the function?

The formula for calculating distance travelled is expressed as:

Distance = Speed × time

The parameters are;

Total distance = 120 miles

Distance already travelled = 20miles

They are driving at a constant rate of 50mi/hr. Thus, the distance travelled at the time "t", during this period will be 50t.

The equation of a line in slope intercept form is;

y = mx + c

Thus,

The required function that models the distance is expressed as;

120 = 50t + 20

To find the domain, we need to get the value of t as shown;

120 = 20 + 50t

120 - 20 = 50t

100 = 50t

t = 100/50

t = 2sec

Hence the required domain must be within the range of 0 and 2.

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. a person who is 6 feet tall is standing 90 feet from the base of a​ tree, and the tree casts a 100 foot shadow. the​ person's shadow is 10 feet in length. what is the height of the​ tree?

Answers

Height of the tree = 60 feet

What are similar triangles?

Two triangles are similar if they have the same ratio of corresponding sides and equal pair of corresponding angles.

Given,

Height of the person = 6 feet

Length of the shadow of person = 10 feet

Length of the shadow of the tree = 100 feet

Tree and person at distance of 90 feet

let 'h' be the height of the tree

Triangles made by Tree, the person and the shadows are similar

the following proportion counts

h : 6 = 100 : 10

h = (6×100)/10

h = 60 feet

the tree is 60 feet high.

Hence, 60 feet is the height of the tree.

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4y^2+4(2y^2-8)=
How to combine like terms

Answers

Answer:

12y² - 32

Step-by-step explanation:

4y² + 4(2y² - 8) = 4y² + 8y² - 32 = 12y² - 32

Help me please I’m stuck no links or random questions

Answers

Answer:

No

Step-by-step explanation:

It misses a decent amount of the data. When you plot the line y=10x there are about 8 points that are over the line and none below so it is not a good fit for the data

What is a point-slope equation of the line with slope 3 that goes through the point (-2, 8)?

Answers

The point-slope equation of the line is: y - 8 = 3(x + 2).

How to Write the Point-slope Equation of a Line?

The point-slope form of a line is given by the equation y - y1 = m(x - x1), where m is the slope of the line and (x1, y1) is a point on the line.

Given the slope of the line is 3 and the point (-2, 8) lies on the line, we can substitute these values into the point-slope form to find the equation of the line.

y - 8 = 3(x + 2)

Simplifying, we can rewrite in slope-intercept form as:

y = 3x + 14

Therefore, the point-slope equation of the line with a slope of 3 that goes through the point (-2, 8) is y - 8 = 3(x + 2).

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What is the sum of the measures of the interior angles of a 12 sided polygon?

Answers

Answer: The sum of the measures of the interior angles of a polygon can be found using the formula:

(n-2) * 180

Where n is the number of sides in the polygon.

For a 12-sided polygon (dodecagon), the sum of the measures of the interior angles would be:

(12-2) * 180 = 10 * 180 = 1800 degrees

Step-by-step explanation:

What is the perform indicated operation for 1 1/7×2 4/5

Answers

Answer: 16/5 or 3.2 or 3 and 1/5

Step-by-step explanation:

NEED HELP ASAP PLS AND THX Picture is attached

Answers

The figure identifies as Ray.

What is ray?

A ray is a segment of a line where one point is fixed and the other has no defined end. It denotes that a ray has one terminating end and an indefinitely long other end.

In mathematics, a ray is a segment of a line with a fixed starting point but no ending. It can go on forever in a single direction. A ray cannot be measured since it has no end point.

Here the given figures ,

A is the fixed point and another end of the line is not have any ending point, We can't measure the length of the line because it has endless ending.

Hence the given figure is Ray.

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5. A food company designs a cylindrical can that will be used for beans. The net of the cylinder is shown.

What is the approximate surface area of the cylindrical can, using 3.14 for π? Round to the nearest hundredth if necessary. PLEASE HELP ME DUE I BEG THANK U

Answers

Answer:

Should be 87.92 inches

Step-by-step explanation:

First calculate the circumference of the circle - this is the length of the rectangle. The rest should be straight forward.

C = 2πr

= 2 * 3.14 * 2

= 12.56

A(circle) = πr^2

= 3.14 * (2)^2

= 12.56

A(rectangle) = lw

= 12.56 * 5

= 62.82

SA = area of rectangle + area of circle + area of circle

= 62.82 + 12.56 + 12.56

= 87.92

Brent has a piece of lumber 8 feet long that he needs to split into -foot pieces. How many -foot pieces will he be able to cut from 8 feet? Select the equation that correctly models the situation.
A.
B.
C.
D.
need help quick

Answers

Answer: he could have 8 pieces

Step-by-step explanation:

well you have 8 feet and if you need to get as many feet  cut out  well just do 8 divided by 1 and that is 8 and theres your qoutiont

ouise stops at the gift store to buy a souvenir of the Statue of Liberty. The original height of the tatue Is 151 feet. If a scale factor of 1 inch = 20 feet is used to design the souvenir, what is the weight of the replica?​

Answers

The height of the Statue of Liberty replica at the gift store is 7.55 inches

What is an equation?

An equation is an expression showing the relationship between two or more numbers and variables. An equation can either be linear, quadratic, cubic and so on depending on the degree.

Scaling is used to increase or decrease the size of a figure by a scale factor.

The scale factor is 1 inch = 20 feet. If the height of the statue is 151 feet, hence:

Height of the replica = 151 feet * 1 inch per 20 feet = 7.55 inches

The height of the replica is 7.55 inches

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if BCF ~ BDE solve for x

Answers

The value of x is 10

What are similar triangles?

If two triangles' corresponding angles and sides are identical and their corresponding sides are proportional, or if the ratios between the lengths of the corresponding sides are comparable, then two triangles are said to be similar.

Similar triangles are triangles with the same shape but different sizes. Examples of related objects are all equilateral triangles and squares with any side length.

BC/BD = BF/BE

52/(52+39) = 56/(56+5x-8)

52/91 = 56/(48+5x)

4/7= 56/(48+5x)

1/7=14/(48+5x)

48+5x = 98

5x= 50

x=10

The value of x is 10

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The test scores for a math class are shown below. 81, 85, 82, 93, 85, 84, 95, 87, 88, 91 39. What are the mean, median, and mode of the data set?​

Answers

The median is the middle term in the arranged data set. In the case of an even number of terms, the median is the average of the two middle terms.
85
+
87
2
85
+
87
2
Remove parentheses.
85
+
87
2
85
+
87
2
Add
85
85
and
87
87
.
172
2
172
2
Divide
172
172
by
2
2
.
86
86
Convert the median
86
86
to decimal.
86

zoe is using a 72 foot ladder to reach the top of a 60 foot building, what is the distance from the bottom of the ladder to the base of the building?

Answers

The distance from the bottom of the ladder to the base of the building is 39.6ft.

What is the Pythagorean theorem in plain English?

In a right-angled triangle, the square of the hypotenuse side is equal to the sum of the squares of the other two sides, according to Pythagoras's Theorem. These triangle's three sides are known as the Perpendicular, Base, and Hypotenuse.

This is a question about the Pythagorean theorem, which states that in a right triangle, the sum of the squares of the lengths of the two legs is equal to the square of the length of the hypotenuse.

We can call the distance from the bottom of the ladder to the base of the building as x, and the distance between the ladder base and the building as the ladder's height = h.

By using Pythagorean theorem: x^2 + h^2 = 72^2 , the distance from the bottom of the ladder to the base of the building is x = √(72^2 - 60^2) = √(5184 - 3600) = √1584 = 39.6 ft.

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please help please..

Answers

Answer:

first option

Step-by-step explanation:

integers are like whole numbers but can also be negative

Answer:

A

Step-by-step explanation:

Determine whether you would use a one-dimensional, two-dimensional, or three-dimensional
measurement to answer each of the following questions (you do not have to answer the questions.)
Explain your choice in each case.
a. You are planning to paint all of the walls in your kitchen. How much paint will you need?
b. A box measuring 3 inches by 6 inches by 9 inches is to be wrapped in brown paper. How much
paper will be needed?
c. After the box of part b is wrapped, it is to be tied with string. How much string will be needed?

Answers

Therefore , the solution of the given problem of dimensional comes out to be volume of given dimension is  162 inch cube

What exactly is the dimension?

a three-dimensional figure is one with measurements in one or more directions, particularly height, length, or breadth. Two-dimensional When two variables are connected. Similar to how we are asked to locate a space ,Then, it depends on two variables: length and width.

Here,

Given dimensions :

=> length = 3 inch , width = 6 inches and height = 9 inches.

=> Volume = l*b*h

=>  Volume =  3* 6* 9

=> Volume =  162 inch cube

Therefore , the solution of the given problem of dimensional comes out to be volume of given dimension is  162 inch cube

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Q2: Determine whether the graphs of each pair of equations are parall
perpendicular or neither.
1. y = 3x + 4
y = 3x + 7
3. y = 2x-5
y = 5x -5
5. y = 3/5x - 3
5y = 3x - 10
7. y = 7x + 2
x + 7y=8
2. y = -4x+1
4y = x + 3
4. y=-1/3x + 2
y = 3x - 5
6. y = 4
4y = 6
8. y = 5/6x - 6
x + 5y = 4

Answers

Answer:

x+5y = 4 i think its the answer but I'm not sure

Read the excerpt from "Healthy Eating."

But no one can ignore the damage being wrought by all this bad eating. More than one out of three adults in the United States -- 37.5 percent -- are obese, according to the Centers for Disease Control and Prevention. Some of the leading causes of death -- heart disease, stroke and type 2 diabetes -- are directly linked to obesity. And childhood obesity has tripled in the last 30 years. With more than a third of kids between 6 and 19 considered obese, the CDC reports, they are at substantially more risk for developing cardiovascular disease, diabetes, bone and joint conditions, and cancer.

PLS HELP.
Which statement best describes the author's argument in this part of the article?

Eating a poor diet can have harmful effects on people's health.
Eating healthier foods is not as easy as some might think.
Children should be required to maintain a healthy diet.
Eating habits have changed significantly in recent years.

Answers

Answer:

A

Step-by-step explanation:

Eating a poor diet can have harmful effects on people's health.

Answer:

A.  Eating a poor diet can have harmful effects on people's health. 

Step-by-step explanation:

right on edge

Give three solutions to the equation y=3x−4

Answers

Answer: (0,-4) (4/3,0) (1,-1)

Step-by-step explanation: equation y=3x-4

here we will use when x=0

y = 3(0) -4

y = -4

when y = 0

0 = 3x -4

3x = 4

x = 4/3

when x=1

y = 3(1) -4

y = -1

A zoo's annual budget for animal care is $83,595. The director calculates that 1/6
of that is spent on educational programs for zookeepers. What is the cost for
zookeeper education?

Answers

So the cost for zookeeper education is $13,932.5

What is a fraction?

A fraction represents a part of a number or any number of equal parts. There is a fraction, containing numerator(upper value) and denominator(lower value).

To calculate the cost for zookeeper education, we need to multiply the total budget for animal care by 1/6.

83,595 x 1/6 = 13,932.5

So the cost for zookeeper education is $13,932.5.

Explanation:

1/6 of the budget, which is expressed as a fraction, is the same as dividing the budget by 6.

So we can use the formula 83,595 / 6 = 13,932.5, the result is the cost for zookeeper education.

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