multiple choice question. with explanation

Multiple Choice Question. With Explanation

Answers

Answer 1

Answer:

(1)

Step-by-step explanation:

the sum of the 3 angles in a triangle = 180° .

consider the inner triangle where

a + b + 58° = 180° ( subtract 58° from both sides )

a + b = 122°

consider the outer triangle where

c + d + 63° = 180° ( subtract 63° from both sides )

c + d = 117°

Then

a + b + c + d = 122° + 117° = 239°


Related Questions

Find the missing terms in the sequence.

4, 6, 10, 16, 24, 34, __, 60, 76, __, 114

Enter the two missing terms with only a comma between them.

Answers

Answer:

46, 94

Step-by-step explanation:

hope this works for you :)

a basket contains 3 types of fruit. The apples weigh 4/9 kilogram, the oranges weigh 1/6 kilogram, and the pears weigh 5/18 kilogram. What is the total weight of the fruit in this basket?

A) 10/33
B)15/18
C)8/9

Answers

The answer is C

Make all of the denominators common

4/9 x 2 = 8/18

1/6 x 3 = 3/18

5/18

8/18 + 3/18 + 5/18 = 16/18

When you simplify you get 8/9

This weekend, the local Cinema sold a total of 8500 movie tickets. The proceeds totaled $64,600. Tickets can be bought in one of 3 ways a matinee ticket costs $5 student tickets costs $6, and regular tickets are $8.50. How many of each type of ticket was sold if twice as many student tickets were sold as matinee tickets?​

Answers

Number of matinee tickets = 900

Number of student tickets = 1800

Number of regular tickets = 5800

Algebra is the branch of mathematics that represents problems and situations in the form of mathematical expressions. It contains variables such as x, y, z, and operations such as addition, subtraction, multiplication, and division to form  meaningful mathematical expressions.

Algebra is used mostly in all areas of mathematics like trigonometry, calculus, and coordinate geometry. A simple example of an algebraic expression  is 9x + 4 = 8.

Algebra deals with symbols, and these symbols are related to each other by operators. It's not just a mathematical concept, it's a skill that we all use subconsciously in our daily lives.

Let x be the number of matinee tickets.

In that case, the number of  student tickets is 2x.

The number of regular  tickets is (8500-x-2x) = (8500-3x).

Total money

5x + 6*(2x) + 8.50*(8500-3x) = 64600

Simplifying and solving for x

5x + 12x - 8.50*3*x + 8.50*8500  = 64600

5x + 12x - 8.50*3*x = 64600 - 8.50*8500

Solving x , we get

x = 900

Number of matinee tickets = 900

Number of student tickets = 1800

Number of regular tickets = 8500 - (900+1800) = 5800

Learn more about algebra here

https://brainly.com/question/4541471

#SPJ9

a radioactive substance decays exponentially. a scientist begins with 180 milligrams of a radioactive substance. after 33 hours, 90 mg of the substance remains. how many milligrams will remain after 43 hours?

Answers

The radioactive substance remaining after 43 hours is: 62.7273 mg by unitary method.

What is unitary method?

A single unit's value can be determined from the values of multiple units, and multiple units' values can be determined from the values of single units using the unitary method.

Now,

Given that 180 mg is present at t = 0 hours.

After t = 33 hours, substance left = 90mg

By unitary method, after = 1 hour, substance left = [tex]180-\frac{90}{33}=180 -\frac{30}{11}[/tex]mg

The substance left after t = 43 hours = [tex]180 - \frac{30\times43}{11}= 180 - \frac{1290}{11}=180 - 117=62.7273mg[/tex]

Hence, The radioactive substance remaining after 43 hours is: 62.7273 mg by unitary method.

To learn more about unitary method, refer to the link: https://brainly.com/question/24587372

#SPJ4


According to government tests, a late model hybrid car gets 45 miles per gallon of gas. If gasoline sells
at $3.20 per gallon, how many miles will the car travel on $20.00 of gas?

Answers

since we already know 45miles per gallon which is $3.20 per gallon so, we will multiply 45miles with $20 of gas that would equal to 900miles.
The car will travel 900 miles on $20.00 of gas.

Which expression is equivalent to −30+(−40)+(−70) ?


−(30−40)+(−70)
negative open parenthesis 30 minus 40 close parenthesis plus open parenthesis negative 70 close parenthesis

30 + 40 + 70
30 + 40 + 70

−30+(−70)+(−40)
negative 30 plus open parenthesis negative 70 close parenthesis plus open parenthesis negative 40 close parenthesis

−30−(40−70)

Answers

The answer choice which correctly represents an equivalent expression to that which is given as in the task content is; −30 + (−70) + (−40).

Which expression is equivalent to that which is as given in the task content?

It follows from the task content that the expression whose equivalent is to be determined is; −30 + (−40) + (−70).

Therefore, since it follows from the associative property of addition that;

a + b + c = a + c + b.

Therefore, same can be said for the expression as given in the task content where;

-30 + (-40) + (-70) = -30 + (-70) + (-40).

Ultimately, the required equivalent expression is; −30+(−70)+(−40); negative 30 plus open parenthesis negative 70 close parenthesis plus open parenthesis negative 40 close parenthesis

Read more on associative property;

https://brainly.com/question/13181

#SPJ1

AB=2x+7,AC=7x-3,BC=4x-2

Answers

The value of x on the line segment is 8

How to determine the value of x?

The given parameters are:

AB = 2x + 7

AC = 7x - 3

BC = 4x - 2

The above means that the point B is on the line segment AC

So, we have:

AC = AB  + BC

This gives

2x + 7 + 4x - 2 = 7x - 3

Evaluate the like terms

-x = -8

Divide both sides by -1

x = 8

Hence, the value of x on the line segment is 8

Read more about line segment at

https://brainly.com/question/14366932

#SPJ1

Members of a sports club are junior, adult
or senior.
80 of these members were asked whether
they prefer tea, coffee or hot chocolate.
25 members are senior, of which 13
prefer coffee.
10 juniors prefer tea.
There are no adult members who prefer
hot chocolate.
2 out of the 18 juniors prefer coffee.
4 out of the 28 members who prefer tea
are seniors.
What fraction of members in the club
prefer hot chocolate?
Give your answer as a fraction in its
simplest form.

Answers

Fraction of members in the club that prefer hot chocolate = [tex]\frac{7}{40}[/tex]

It's Given that :

A sports club has 80 participants.

Senior Members = 25

Junior Members = 18

Adult Members = 80 - (25 + 18) = 80 - 43 = 37

JUNIOR MEMBERS :

Prefers tea = 10

Prefers Coffee = 2

Prefers hot chocolate = 18 - (10 + 2) = 18 - 12 = 6

SENIOR MEMBERS :

Prefers tea = 4

Prefers coffee = 13

Prefers hot chocolate = 25 - (4 + 13) = 25 - 17 = 8

ADULT MEMBERS :

Prefers tea = 28 - (10 + 4) = 28 - 14 = 14

Prefers coffee = 37 - 14 = 23

Prefers hot chocolate = 0 (none)

Calculation of Fraction of members in the club that prefer hot chocolate = 8 + 6 = 14 members out of 80 members

= [tex]\frac{14}{80} = \frac{7}{40}[/tex]

Therefore 7 / 40 of members prefer hot chocolate.

To know more about Fractions, refer to this link :

https://brainly.com/question/21491185?referrer=searchResults

#SPJ1

Help I will Mark A Brainlist !!!! Its A Math Question Find the length of a.

Thank you ao much !!! I hope you have a good day!

Answers

I believe your answer is C
Trust

Answer: a=2√5

Step-by-step explanation:

We have a right-angled isosceles triangle

Hence, a=2√5

Help please I will give brainliest

Answers

Answer:

For sure, A and C. However, I cannot fully read the last one.

Step-by-step explanation:

Be sure to mark me Brainliest!

7:40pm------What is 89 minutes more? (What time will it be?)

Answers

The current time is 08 : 09 pm

How to determine the current time?

The given parameters are

Time = 7 : 40 pm

Minutes added = 89 minutes

The current time is calculated as

Current time = Time + Minutes added

So, we have

Current time = 7 : 40 pm + 89 minutes

Evaluate the sum

Current time = 7 : 129 pm

Rewrite properly as

Current time = 08 : 09 pm

Hence, the current time is 08 : 09 pm

Read more about time a:

https://brainly.com/question/24571540

#SPJ1

4. Joyce works at Coronado's Furniture. She is paid on commission. She receives
10% of her first $900 in sales and 15% of the balance of her sales. Last week she
earned $750. What was the total value of the furniture she sold?

Answers

The total value of the furniture she sold is $4400.

How to compute the value?

Let the remaining sales be represented by x.

She receives 10% of her first $900 in sales and 15% of the balance of her sale.

This will be:

(10% × $900) + (15% × x) = 750

90 + 0.15x = 750

Collect like terms

0.15x = 750 - 90

0.15x = 660

Divide

x = 660/0.15

x = 4400

Therefore, the total value is $4400.

Learn more about expressions on;

brainly.com/question/22048677

#SPJ1

Find the Error A large box of spaghetti noodles contains 3 pounds and costs $2.40. A student said the unit cost is $1.20 per pound. Complete the statement to explain why the student was incorrect and find the correct answer.

Answers

Answer:

1.25 a pound

Step-by-step explanation:

if it was 1.20 per pound it would be less money

The vertices of ABCDE are A(-6, 0), B(-3, 0), C(0, -3), D(-3, -6), and E(-6, -3). Find the vertices
of the image after a translation using the rule (x,y) → (x + 9, y - 6) and a dilation with a scale
factor of 1/3 centered at the origin.

Answers

The coordinates of the image of the vertices of the polygon are A''(x, y) = (1, - 2), B''(x, y) = (2, - 2), C''(x, y) = (0, - 1), D''(x, y) = (- 1, - 2) and E''(x, y) = (- 2, - 1).

What are the images of the vertices of a polygon by using rigid transformations?

Rigid transformations are transformations applied on geometric loci such that Euclidean distances in such constructions are conserved. Translations and dilations are common examples of rigid transformations.

If we know that A(x, y) = (- 6, 0), B(x, y) = (- 3, 0), C(x, y) = (0, - 3), D(x, y) = (- 3, - 6) and E(x, y) = (- 6, - 3), then the coordinates of the image are determined below:

Translation

A'(x, y) = (- 6, 0) + (9, - 6)

A'(x, y) = (3, - 6)

B'(x, y) = (- 3, 0) + (9, - 6)

B'(x, y) = (6, - 6)

C'(x, y) = (0, - 3) + (9, - 6)

C'(x, y) = (9, - 9)

D'(x, y) = (- 3, - 6) + (9, - 6)

D'(x, y) = (6, - 12)

Dilation

A''(x, y) = (1 / 3) · (3, - 6)

A''(x, y) = (1, - 2)

B''(x, y) = (1 / 3) · (6, - 6)

B''(x, y) = (2, - 2)

C''(x, y) = (1 / 3) · (0, - 3)

C''(x, y) = (0, - 1)

D''(x, y) = (1 / 3) · (- 3, - 6)

D''(x, y) = (- 1, - 2)

E''(x, y) = (1 / 3) · (- 6, - 3)

E''(x, y) = (- 2, - 1)

To learn more on rigid transformations: https://brainly.com/question/1761538

#SPJ1

PLS HELP ASAP!!!! WILL GIVE BRAINIEST!!!!!! 100 POINTS!!!!!

SEE ATTACHED PIC

Answers

Answer:

y-coordinate

Step-by-step explanation:

x-intercepts lie on the x-axis. On the x-axis, y=0 while the x value is changing.

Answer: Set the Y equal to zero and solve for x

Step-by-step explanation:

Harry tosses a nickel 4 times. The probability that he gets at least as many heads as tails is.

Answers

When a nickel is being tossed 4 times, there will be 16 possible outcomes:

HHHH, 0 tails and 4 heads

HHHT, 1 tails and 3 heads

HHTH, 1 tails and 3 heads

HHTT, 2 tails and 2 heads

HTHH, 1 tails and 3 heads

HTHT, 2 tails and 2 heads

HTTH, 2 tails and 2 heads

HTTT, 3 tails and 1 heads

THHH, 1 tails and 3 heads

THHT, 2 tails and 2 heads

THTH, 2 tails and 2 heads

THTT, 3 tails and 1 heads

TTHH, 2 tails and 2 heads

TTHT, 3 tails and 1 heads

TTTH, 3 tails and 1 heads

TTTT, 4 tails and 0 heads

Eleven of these outcomes have a head-to-tail ratio of at least one head for every two tails. Therefore, there is an 11/16 chance of getting at least as many heads as tails.

Pls help I’ll give Brainliest

Answers

Answer: I hope this helps.

Step-by-step explanation:

Choose the correct statement.
-2 < -3
1 = -1
5 > -6

Answers

The answer is only 1

(URGENT) A dog is resting against a pole to which he is attached with a 24 meter chain. He watches a cat approach to within 8 meters of the pole and promptly gives chase. The dog runs at 12 meters per second and the cat runs at 10 meters per second. Which does the dog reach first, the car or the end of the chain?

Answers

Answer: End of chain

Step-by-step explanation:

Dog is at pole and cat is at 8 meters if the dog runs at 12 meters a sec and cat runs at 10 in 2 secs the dog will reach end of chain. But the dog needs 4 secs to reach cat because the dog runs 2 meters a second faster than the cat. Hope it Helps!

The fairs train ride covers a distance of 3 miles in 20 minutes what is the speed for the ride in miles per minute​

Answers

Answer:

0.15 miles per minute or 9 miles per hour

Step-by-step explanation:

The temperature in California was 105 on Thursday. The temperature in the North Pole was -20. What is the difference between the two temperatures.

Answers

The answer is 125 degrees. Hope this helped! :)

Answer:

125

Step-by-step explanation:

105 - (-20) = 105 + 20 = 125

A number raised to the fifth power.

Answers

6 raiser to the 5th power =7776

each side of the base of a right octagonal prism is 7 in. long. the altitude of the prism measures 12 in. find the lateral area.

Answers

The lateral area of  right octagonal prism = 672 in^2.

Which octagonal prism is appropriate?

An example of a prismatic uniform polyhedron is the octagonal prism, or op. There are 2 octagons as well as 8 squares in it. Each vertex connects two squares and one octagon. As the name implies, it is an octagonal-based prism.

Describe a 3D figure.

Three-dimensional geometry is a solid figure, item, or shape comprising three dimensions—length, breadth, as well as height.. Three-dimensional structures have height, which is equivalent to thickness or depth, unlike two-dimensional shapes.

According to the given data:

Solve for lateral surface area:

altitude = 12

base = 7

AL=8ah

Putting the value we get:

AL=8 * 12 * 7

Al = 672 in^2

the lateral area of  right octagonal prism = 672 in^2.

To know more about octagonal prism visit:

https://brainly.com/question/22507937

#SPJ4

a set of data has ten numbers. the mean of the data is 12 and the standard deviation is 0. what values could make up a data set with these statistics?

Answers

Answer:

well 22

Step-by-step explanation:

what is the answer to the answer to the answer to the answer to the same the whole of I will tell is the best of the whole time I will tell u won't let go and see if you have any questions or concerns please visit

You play a game on your phone. For every correct move you make, you receive 50 points. For every second that it takes you to complete the game, you lose 3 points. You complete the game in 2 minutes 24 seconds using 35 correct moves. What is your score?

Answers

You get 1750 points from the 35 correct moves (35 x 50) and you get -432 points from time taken (144 x -3) therefore you end the game with 1318 points.

1318 Points.

Figure B is a dilated image of figure A. What is the scale factor?

Answers

Demarcus

Explanation:

A janitor had 2/3 of a spray bottle of cleaning solution. He used 1/6 of a solution of the day .How much does a bottle did he use?

Answers

Answer:

3/6

Step-by-step explanation:

2/3 = 4/6

(multiply 2 by 2 = 4, multiply 3 by 2 = 6)

4/6 - 1/6 = 3/6

Answer:

2x2/3x2-1/6

4/6-1/6=3/6=1/2

he used half for the day

hope this helps or may also he correct •-•

proof let a be a square matrix of order n. (a)show that is symmetric. (b)show that is skew-symmetric. (c)prove that a can be written as the sum of a symmetric matrix b and a skew-symmetric matrix c, a

Answers

(a)Symmetric matrix -

Let matrix A be of order 3×3 =

                                  [tex]\left[\begin{array}{ccc}1&3&8\\3&8&-4\\8&-4&6\end{array}\right][/tex]

So, the transpose of A will be -

A' =

                                  [tex]\left[\begin{array}{ccc}1&3&8\\3&8&-4\\8&-4&6\end{array}\right][/tex]

So, we can say that A=A'. So, it is symmetric.

(b) Skew - symmetric matrix -

Let us consider a matrix B =

                                  [tex]\left[\begin{array}{ccc}0&-6&4\\-6&0&7\\4&7&0\end{array}\right][/tex]

matrix B is said to be skew-symmetric if aij =−aji.

(B' =−B)

B'  =    

                                 [tex]\left[\begin{array}{ccc}0&6&-4\\6&0&-7\\-4&-7&0\end{array}\right][/tex]

(c) A + A′ is a symmetric matrix for any square matrix A with real number entries, whereas A - A′ is a skew-symmetric matrix.

Proof: If B = A + A', then B ′ = (A + A ) ′

(A + B)′ = A′ + B′, thus = A′ + (A′)′

(as (A′)′ =A) = A′ + A

= B (because B + A = B + A′)

B = A+A′ is a symmetric matrix as a result.

Let C now equal A-A′.

Why does C' equal (A-A′)′=(A′)′?

= A′ - A (Why?)

=- (A - A′) = - C

A - A′ is a skew-symmetric matrix as a result.

To learn more about matrices from given link

https://brainly.in/question/14760668

#SPJ4

Ava and Wyatt are reading the same book. At the beginning of the month, Ava was on
page 10 and Wyatt was on page 30. Ava will read 20 pages per day and Wyatt will
read 15 pages per day. Let A represent the page of the book that Ava is on at the end
of t days into the month, and let W represent the page of the book that Wyatt is on at
the end of t days into the month. Graph each function and determine after how many
days, t, Ava and Wyatt will be on the same page of the book.

Answers

Ava and Wyatt will take 4 days to be on the same page of the book.

X-values must be chosen and entered into the equation in order to graph a function. You will obtain a y-value once those values have been entered into the equation. A single point's coordinates are made up of its x and y values.

From the given question we can get:

A = 10 ₊ 20t

W = 30 ₊ 15t

Graph the each function to get the number of days.

A function can only be graphed if X-values are selected and put into the equation. Once those values are introduced into the equation, a y-value will be produced. The values of x and y are the coordinates of a single point.

Hence we get the number of days as 4. and the graph is attached below.

Learn more about Functions here:

brainly.com/question/25638609

#SPJ9

four less than the product of 2 and a number g

Answers

The expression that represents the statement "four less than the product of 2 and a number g" is 2 g - 4.

We are given a statement:

four less than the product of 2 and a number g

We need to form an expression to represent that statement.

An expression is a combination of variables and constants by using the various operations of mathematics like addition, subtraction, division and multiplication.

So, first we will find the product of 2 and a number g.

This is:

2 × g = 2 g

Now, we will subtract 4 from the expression:

2 g - 4

Therefore, the expression that represents the given statement "four less than the product of 2 and a number g" is 2 g - 4.

Learn more about expression here:

https://brainly.com/question/723406

#SPJ9

Other Questions
which variable is the dependent variable gas or miles A ________ process is a set of activities that delivers value to external customers. The bullwhip effect is mainifested by _____________ variation in the supply chain. a. decreasing downstream b. decreasing upstream c. increasing downstream d. increasing upstream Given that quadrilateral PQRS~ quadrilateral TUVW, write a proportion to find the length of PS. U P X S 35 R 20 25 W T 15 How much kinetic energy does a 50 kg object have it ismoving at a velocity of 1 m/s?JDo not Include units in your answer. As lean systems thinking is implemented, the amount of training that employees receive? customers' perceptions are often central to an organizations goals, and their blank can be measured with surveys or by the number of customer complaints an organization receives. collin often experiences a runner's high during his daily 3-mile run. which neurotransmitter in his brain is most likely responsible for this experience? please choose the correct answer from the following choices, and then select the submit answer button. answer choices endorphins State which metric unit you would probably use to measure item.Mass of a beach ball Rewrite 2,290,000 in scientific notation. 2.29 x 106 2.29 x 104 2.29 x 104 2.29 x 106 A farmer who worked on a parcel of land and received a portion of the crop as payment was known as a ______. economists say that individuals make decisions at the margin. what does this mean? give an example where you have made such decision Two pages that face each other in a book have 349 as the sum of their page numbers. What is the number of the page that comes first? Real gdp grows at a constant rate of 1.0 percent per year and the annual rate of population growth is 3.0 percent per year. what is the rate of growth of per capita real gdp? What happens to you at the red circle on the graph? Describe each region by focusing on facts and details that make each region different or unique. whenever one turns the pages of a book, uses a pen to take notes, or raises one's hand, one's actions are made possible by the nervous system. many first-in-human research studies use an ascending dose design. specifically in this type of design, irbs need to ensure that the research protocol includes and documents: suppose that a function f has domain (-2,2) and range (-3,5). what is the domain of the function f(2x)? How might "the bird" feel inside its cage? What does "the bird" want?I know why the caged bird sings.