The drama club at a local high school sells adult, teen, and child tickets for a school play. The matrix below represents the tickets sold and the total cost of the tickets for three performances.

Answers

Answer 1

Answer:

a is the correct answer in e2020

Step-by-step explanation:

Answer 2

Based on the calculations, the row operation (-2R₁ + R₂ → R₂) is equal to:[tex]\left[\begin{array}{cccc}3&12&8&102\\0&-6&-6&-42\\0&15&5&85\end{array}\right][/tex]

How to determine a row operation?

First of all, we would write a matrix to represent the number of tickets sold and the total cost of the tickets for three performances as follows:

                   [tex]\left[\begin{array}{cccc}3&12&8&102\\6&10&6&102\\0&15&5&85\end{array}\right][/tex]

Next, we would perform this row operation (-2R₁ + R₂ → R₂):

[tex]\left[\begin{array}{cccc}3&12&8&102\\(-2\times 3+6)&-2\times 12+18)&-2\times 6+6)&-2\times 102+162)\\0&15&5&85\end{array}\right][/tex]

Evaluating further, we have:

[tex]\left[\begin{array}{cccc}3&12&8&102\\0&-6&-6&-42\\0&15&5&85\end{array}\right][/tex]

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Complete Question:

The drama club at a local high school sells adult, teen, and child tickets for a school play. The matrix below represents the tickets sold and the total cost of the tickets for three performances.

[tex]\left[\begin{array}{cccc}3&12&8&102\\0&-6&-6&-42\\0&15&5&85\end{array}\right][/tex]

What is the result of performing the row operation (-2R₁ + R₂ → R₂) on this matrix?


Related Questions

35 points!!!!!!!
....................................

Answers

Answer:

Step-by-step explanation:

1. We know that the 2 lines are not parallel. If they were, it would be marked on the graph. Therefore, corresponding angles (5 and 6 in this case) are not equal.

2. Angles 1 and 2 are corresponding angles, and because the 2 lines are parallel, they must be equal. Therefore, ∠1 = ∠2 = 60°.

3. Some real-life examples of parallel lines could be the shelves of bookcases or the painted lines in a parking lot. I hope this helps you.

I do apologize for wasting your points because I’m not answering your question, but this is just for the person to get Brainliest. Hopefully in the future I can repay you back by actually answering one of your questions. Correctly at that.

Solve for x*3=8/125

Answers

Answer:

Step-by-step explanation:

[tex]x^{3}=\frac{8}{125}\\\\x^{3}=\frac{2*2*2}{5*5*5}\\\\x^{3}=\frac{2^{3}}{5^{3}}[/tex]

Take cube root,

[tex]x=\frac{2}{5}[/tex]

which of the following theorems verifies that DEF=XYZ? a)AA b) LL c) HA d)HL​

Answers

Answer:

is it AA..

I have no idea what to do how...

The theorems that verifies the ΔDEF ≅ ΔXYZ by SAS congruency Criteria.

What is Congruency?

Congruent figures have sides that are the same length and angles that are the same measurement. In other words, congruent figures are those in which one figure superimposes another. Even when twisted or flipped, they perfectly fit together.

We have, two triangles DEF and XYZ.

Now, from the two triangle

EF = XY (Given)

DF = XZ (Given)

<EFD = < YZX (Each 90)

By SAS Congruency Rule

ΔDEF ≅ ΔXYZ

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help me please :////

Answers

Answer:

Perimeter = 55.1 ft

area = 236.625 ft2

Step-by-step explanation:

radius = 15 / 2 = 7.5

Perimeter = perimeter of 2 half circle + 4+4

                = perimeter of 1 circle +4 +4

                = 2*7.5* pi + 4 + 4 = 55.1 ft

area = area of 2 half circle + area of 1 rectangle

        = area of 1 circle + area of 1 rectangle

        = pi *7.5*7.5 +4*15

        = 236.625 ft2

Set up and solve an equation to find the value of . List the relevant angle relationship in the diagram. Find the measurement of one of the vertical angles.

Answers

Answer:

x = 33°

Step-by-step explanation:

Take a look at the attachment below, and you will see that x = 33°

Part 2 to my last question, help!

Answers

The tree is 6*20/4=30 feet tall.

Explanation:
The ratio between the '4 feet' and the '20 feet' is the same as the ratio between his height and the height of the tree. So if we take his height and multiply it by 20/4, we get the height of the tree.

HELP ME ILL MARK YOU BRAINLIEST!!!!

Answers

Answer:

W.

Step-by-step explanation:

All you have to do is cross check each of the statements with the table.

Solve the following quadratic equation:
(3x – 5)2 = 4

Answers

Answer:

Step-by-step explanation:

It is mandatory (required) to use " ^ " for exponentiation:

(3x – 5)^2 = 4

Taking the square root of both sides, we get

3x - 5 = ±2, or

3x = 5 ±2, or

(a) 3x = 7 => x = 7/3, and

(b) 3x = 3, or x = 1

A car is traveling at a constant velocity. After two hours the car has traveled 110 miles.
After four hours the car has traveled 220 miles. Assuming a linear equation fits this
situation, find the distance that the car will travel after five hours.

Answers

Answer:

As the velocity is constant,

Distance covered in n hours = n × distance covered in 1 hr

Distance covered in 7 hrs = 7 × 110 = 770 miles

Which could be the area of the base of the triangular prism?
5 ft
3 ft
5 ft
4 ft
INot drawn to scalel

Answers

Answer:28.62

Step-by-step explanation:

AB=s(s﹣a)(s﹣b)(s﹣c)

V=ABh

s=a+b+c

2

Solving forV

V=1

4h﹣a4+2(ab)2+2(ac)2﹣b4+2(bc)2﹣c4=1

4·4·﹣54+2·(5·3)2+2·(5·5)2﹣34+2·(3·5)2﹣54≈28.61818

The area of a base of the triangular prism is 20 square feet.

What is area?

Area is the amount of space occupied by a two-dimensional figure. In other words, it is the quantity that measures the number of unit squares that cover the surface of a closed figure. The standard unit of area is square units which is generally represented as square inches, square feet, etc.

From the given figure, the dimensions of the base are 4 ft and 5 ft.

Here, the base is rectangle

We know that, the area of a rectangle is Length×Width

= 5×4

= 20 square feet

Therefore, the area of a base is 20 square feet.

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Find the slope and y-intercept of the line
that is graphed on the coordinate grid
below.
A slope: -1; y-intercept: -1
B slope: -1; y-intercept: 1
C slope: 1; y-intercept: -1

Answers

Answer:

C

Step-by-step explanation:

The slope is 1.  Note how each time x increases by 1 unit, y also increases by 1 unit.

The y-intercept is (0, -1).

Answer C is correct.

Diana is making a mosaic pattern that uses 2 blue tiles for every 5 white tiles. How many blue tiles does she need if she has 60 white tiles

Answers

Answer:

The answer is 30

2. 8 w-12 = -4

need sum help​

Answers

Answer:

Sum: 8w-8

Value of w: w= 1

Step-by-step explanation:

Find the area of the shape shown below.

Answers

Answer:

25

Step-by-step explanation:

(7,5+2,5).2,5=25

Answer:

12.5

Step-by-step explanation:

The given figure is a trapezium .

Area of Trapezium ;

[tex] \boxed{\frac{a + b}{2} h}[/tex]

given ;

A = 7.5B = 2.5h = 2.5

Putting given value into formula

[tex] \frac{7.5 + 2.5}{2} \times 2.5[/tex]

[tex] \frac{10}{2} \times 2.5 \\ [/tex]

[tex]5 \times 2.5 \\ \\ \implies \boxed {\purple{12.5 - answer}}[/tex]

Please help fast.............................

Answers

1.38 is the mean of the amount of rainfall over the course of the week

Answer:

1.4 inches (1 decimal place)

Step-by-step explanation:

To calculate the mean you get the sum of all the terms required and divide by the number of terms you summed up.

All of the terms in the table sum up to 29/3. 29/3 divided by 7 (number of days in a week) = 1.3809..., which you can round to 1.4 inches

What is the value of X in the figure?

Answers

Answer:

x = 360/7

Step-by-step explanation:

the sum of 3x and 2/4x is supposed to be 180 degrees.

1.- write it as an equation.

3x + 1/2x = 180

2.- Combine like terms.

3x + 1/2x = 7/2x

7/2x = 180

3.- divide.

180 / 7/2 = 360/7

What is the surface area of this design?
6 in.
360 in2
392 in2
4 in.
280 in2
10 in.
4 in.
76 in2
6 in.

Answers

Answer:

392

Step-by-step explanation:

I got it correct! :)

The surface area of the design is 392 square inches.

The correct option is B.

What is cuboid?

A cuboid is a solid in three dimensions with six rectangular faces, eight vertices, and twelve edges. Three dimensions, including length, breadth, and height, define a cuboid. A cuboid with integer edges is referred described as being perfect.

Given:

The shape is a cuboid.

The surface area of the cuboid,

= 2lw+2lh+2hw,

where l is the length, w is the width and h is the height.

The height of the upper cuboid,

= 10-4 = 6 inches.

The surface area of the upper cuboid,

= 2lw+2lh+2hw

= 2(36) + 2(36) - 2(36)

= 144 square inches.

The surface area of the lower cuboid,

= 2lw+2lh+2hw

= 2(40) + 2(24) + 2(60)

= 248 square inches.

The total surface area,

= 392 square inches.

Therefore, the surface area of the design is 392 square inches.

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A 14-ounce energy drink contains 10.5 ounces of sugar. How much sugar is in one ounce of the drink?

Answers

Answer:

0.75 ounces per ounce of drink

Step-by-step explanation:

10.5/14

Answer:

0.75 oz of sugar

Step-by-step explanation:

If 14 oz contains 10.5 oz sugar

1 oz will contain 10.5/14 = 0.75 oz of sugar

HHHH HHHT HTHH HHTT HHTH HTHT HTTH HTTT TTTT TTTH THTT TTHH TTHT THTH THHT THHH What is the probability that at least three coins land facing tails up?

Answers

Answer:

5/16

Step-by-step explanation:

As you can see in the 16 given possible outcomes, in 5 of them at least 3 coins land facing up. Since there are 16 outcomes in total, the probability that at least three coins land facing up is 5/16. Hope this helps!

X/12 = 3/9 what does x equal and how did you get the answer

Answers

Answer:

4

Step-by-step explanation:

You can cross multiply.

first i would simplify x/12=3/9 to x/12=1/3

so then it would be equal to x*3=1*12

then i would simplify it to 3x=12

then you solve for x and i would get 4

Answer:

x = 4

Step-by-step explanation:

[tex]\frac{x}{12} =\frac{3}{9} \\[/tex]

Simplify [tex]\frac{3}{9} = \frac{1}{3} \\[/tex]

What is a third of 12?

4

x = 4

Find the marked up price of the item.
Original Cost: $7.50

Markup: 32%

The marked up price is:

Answers

mark up price is 3.53

Answer:

$9.90

Step-by-step explanation:

Select all that are measures of angles that are coterminal with a -50° angle.

-770°

-530°

-410°

50°

310°

360°

410°

670°

Answers

to find out which angles are coterminal, add and subtract 360 degrees from 50 degrees, so

your answer is 310, 670, -410, -770

Answer: -770, -410, 310, 670 degrees

Step-by-step explanation:

Coterminal angles are angles that are have the same sides ... they are essentially the same angle, but are, for example, rotated an extra 360 degrees.

You can add/subtract 360 degrees to check if angles are coterminal:

-770 = -50 - 360 - 360    -- YES, it is coterminal with a -50 degree angle.

-530 [tex]\neq[/tex] -50 - 360 ...      -- NO

-410 = -50 - 360       -- YES

50 [tex]\neq[/tex] -50 + 360 ...      -- NO

310 = -50 + 360     -- YES

360 [tex]\neq[/tex] -50 + 360 ...      -- NO

410 [tex]\neq[/tex] -50 + 360 ...      -- NO

670 = -50 + 360 + 360     -- YES

evaluate 8 j - k + 14 when j = 0.25 and k = 1

Answers

Answer:

15

Step-by-step explanation:

8 j - k + 14

Let j = .25 and k = 1

8(.25)  -1 +14

Multiply

2 -1 +14

Then add and subtract

1 +14

15

Answer:

The answer is 15.

Step-by-step explanation:

8j - 1 + k + 14

8(0.25) - (1) + 14

2 - 1 + 14 = 15

What’s sample space?

Answers

Answer:

sample space is the range of values of a random variable.

Step-by-step explanation:

Find the distance between the points given. (-3, -6) and (3, 2) 4 10

Answers

Answer:

10

Step-by-step explanation:

The distance between the points  (-3, -6) and (3, 2) is  10 units.

What is the distance formula between two points?

The distance formula between two points (x₁, y₁) and (x₂, y₂) is given by,

D = [tex]\sqrt{(x_2 - x_1)^2 + (y_2 - y_1_)^2[/tex].

Given, We have to determine the distance between the points (- 3, - 6) and (3, 2).

Let, (x₁, y₁) is (- 3, - 6) and (x₂, y₂) is (3, 2).

Therefore,

D = [tex]\sqrt{(3 + 3)^2 + (2 + 6)^2[/tex].

D = [tex]\sqrt{(6)^2 + (8)^2[/tex].

D = [tex]\sqrt{(36 + 64)[/tex].

D = [tex]\sqrt{100}[/tex].

D = 10 units.

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Please solve these questions 9 to 14
Chose correct answers and will mark as brainliest

Answers

Answer:9 yes 10 no 11 b 12 d 13 a 14c

Step-by-step explanation:

9 - yes
10 - no
11 - b
12 - d
13 - a
14 - c

hope this helps and hope i get brainliest :)

A company mixes two kinds of cleansers to get a blend they sell for 59 cents a liter. One of the cleansers costs 50 cents per liter, and the other 80 cents per liter. How much of each kind should be mixed to get 2,000 liters of the blend?

Answers

Answer:

I actually don't know I am comfused



The volume of the
solid shown is:
A 61.4 cm
B 268.2 cm
C 307 26 cm
D 142.25 cm

Solution:​

Answers

Answer:

the answer is D

Step-by-step explanation:

to find the volume just multiply L x W56.9 x 2.5 = 142.25so the answer would be 142.25 cm

9x^3y^6/xy^6
Solve using only positive exponents

Answers

Look at the attached picture

Hope it will help you...

Good luck on your assignment

If the dimensions of a figure are doubled, how many times larger will the volume be?

Answers

Answer:

2 Answers By Expert Tutors

Consider as an example a box of length L, width W, and height H. If all linear dimension are doubled the area becomes 4 (22) times the original

Step-by-step explanation:

google

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