A match-seller arranges his matchboxes in a
triangular pattern as shown in Fig. 18.4. He
continues until there are 11 matchboxes in
the bottom row of the triangle. How many
matchboxes are in the complete pattern?
MATCHES

Answers

Answer 1

Answer:

ok

Step-by-step explanation:


Related Questions


How many four-letter codes can be made if no letter can be used twice?

14,950
16
358,800
1

Answers

The answer is 358,800 because the first letter can be any of the 26 then the second can only be one of 25, third can be any of 24 and fourth can be any of 23. So (26 x 25 x 24 x 23) = 358,800. I hope this helps :)

You want to buy One dvd for $24.99 and another for $19.99. Whats the total price of both DVDS plus sales tax of 6.75%

Answers

Answer:

$48.0

Step-by-step explanation:

Given data

Total cost of DVDs= $24.99+ $19.99

=$44.98

Let us compute the amount of the tax 6.75%

= 6.75/100* 44.98

=0.0675* 44.98

=$3.03615

The total cost including the tax is

=44.98+3.03615

=$48.0

A seagull is perched in a tree 50 feet above sea level. Directly below the seagull is a trout, swimming 23 feet below sea level. What is the distance between the seagull and the trout?

Answers

Answer:

27 feet

Step-by-step explanation:

Let the direction above sea level is positive and the direction below sea level is negative.

Here, a seagull is perched in a tree 50 feet above sea level. Directly below the seagull is a trout, swimming 23 feet below sea level.

It means,

Distance = 50 +(-23)

= 50-23

= 27 feet

Hence, the distance between the seagull and the trout is 27 feet.

x-2=-9 i need the answer quick please! thanks btw :P

Answers

Answer:

X=-7

Step-by-step explanation:

When "subtracting" negatives it's basically like adding them together, but the numbers get farther away from 0 going left... The equation could look like

-7 - 2 = -9 or -7 + (-2) = -9 :)

Answer:

x=-7

Step-by-step explanation:

Estimate the value of
9304 ÷93 =​

Answers

Answer:

100

Step-by-step explanation:

Round 9304 to 9300. 9300/93 is just 100 since 100 * 93 = 9300 (this is something easily recognizable).

The perimeter of a regular decagon is 855m.
State the length of one of its sides.​



need help asap, will do brainlist

Answers

Answer:

85.5m

Step-by-step explanation:

No: of sides in a decagon = 10

Length of each side = 855m ÷ 10 = 85.5m

The area of a rectangular concrete patio is 70 square meters. It is 10 meters long. How wide is it?

Answers

Answer:

Correct me if I'm wrong, but I'm pretty sure it is 7.

Step-by-step explanation:

because to find area you multiply length * width so 10 times 7 is 70?

Solve this PLZ
6 ÷ 8 - 2 + 5 × 20 =​

Answers

Answer:

6 ÷ 8 - 2 + 5 × 20 =​ 98.75

Step-by-step explanation:

Which function is represented by this table?
Х

A y= 2+1
B.y= + 3
C.Y = 42
D.y = 22
PLEASE I NEED HELP ITS A TIMER TEST

Answers

Answer:

it's B. y = x + 3

You can test it by putting the values of x in the equation.

I think the answer should be C 42

Which function has a range of all real numbers
less than or
equal to -3

Answers

The answer:

B ) y= | x | - 3

There are 5 red and 3 black balls in a bag. Find the probability of drawing a black ball.

Answers

Answer:

5 : 3 (8 total)

3/8 or 0.375 or 37.5%

Answer:

the probability of drawing a black ball Pr( B)=3/8

Step-by-step explanation:

The total number of balls =5+3

=8

probability of drawing a Red ball=Pr(R)

=5/8

probability of drawing a Black ball=Pr(B)

=3/8

Are the lines parallel, perpendicular, or neither show work cause I need to understand this

Answers

Answer:

neither I believe because they intersect

HELP HELP HELP HELP

Answers

Pythagorean Theorem -

[tex] {a}^{2} + {b}^{2} = {c}^{2} [/tex]

[tex] {14}^{2} + {13}^{2} = {x}^{2} [/tex]

Simplify the expression!

[tex]365 = {x}^{2} [/tex]

Find x alone.

[tex]x = \sqrt{365} [/tex]

This alone is already simplified, so this is the answer.

Answer: Square Root Of 365

Answer:

19.10 is the answer to the question

Which of the following descriptions best models a door?
A. rectangular prism
B.cone
C. pyramid
D.triangular prism

Answers

Answer:

A

Step-by-step explanation:

a door is a rectangle so is can't be any of the other shapes

A farmer grows x acres of peas and y acres of tomatoes. He has 12 acres available to plant peas and tomatoes. Write an inequality in x and y to satisfy this condition. The number acres of tomatoes planted must not be more then twice the number of acres of peas planted. Write an inequality in x and y to satisfy this condition.​​

Answers

Answer:

Y < 2X

Step-by-step explanation:

Let the acres of land on which pea is to be cultivated is "X" acres and the acres of land on which tomato is to be cultivated is "Y"

It is given that number acres of tomatoes planted must not be more then twice the number of acres of peas planted

Thus, [tex]Y < 2X[/tex]

[tex]X + Y = 12[/tex] acres

[tex]Y = 12-X[/tex] acres

Thus,

[tex]12 - X \leq X\\12\leq 2X\\6 \leq X[/tex]

Let us take X = 6 , Then Y = 13-6 = 6

HELP!!!! At approximately what value of x do the two lines meet?

Answers

At value of x=4

What is coordinate of a point?

A pair of numbers that describe the exact position of a point on a cartesian plane by using the horizontal and vertical lines  are called coordinates. General form of coordinate is (x, y)

From the graph we can see , coordinates of that point where both the lines are intersecting is (4, -3)

Because x coordinate is = 4

and y coordinate is = -3

At the value of x=4, the two lines intersect each other

Learn more about coordinate system :

https://brainly.com/question/4726772?referrer=searchResults

#SPJ2

2/2n + 1 = 4/5

please show work

Answers

Answer:

-1/5

Step-by-step explanation:

Divide the numbers:

2/2n + 1 = 4/5

1n + 1 = 4/5

Multiply by 1:

1n + 1 = 4/5

n + 1 = 4/5

Subtract 1 from both sides of the equation:

n + 1 = 4/5

n + 1 -1 = 4/5 -1

Simplify:

N + 1 - 1 = 4/5 -1

N = 4/5 -1

N = 4/5 -1

And this is what you'll get:

N = -1/5

Hope this helps. :]

help me!! will give brainly helppppp

Answers

Answer:

SJSGGSHB AAJAM SLE AS THE MONSY UWY WHY AH AI

PLEASE HELP MY TEST IS DUE IN 13 MINS!!! AREA OF A TRIANGLE: TRIANGLE IS SIDEWAYS, 15 M ON THE LONG SIDE OF THE TRIANGLE AND 2M IN THE MIDDLE WHATS THE AREA!? PLEASE AND THANK YOU! <3

Answers

Answer:

7.5m²

Step-by-step explanation:

A=½b×l

A=½×7.5×2

A=7.5m²

Find the value of x in 18 : 9 = 36 : x?
(a) 16
(b) 18
(c ) 27
(d) 72
with working plsss.impropriate answers will be reported

Answers

Answer is B Step-by-step explanation:

18/9/ 36

36/ 2

18

Please can you help me

Answers

Answer:

0.5 (or 0.50)

Step-by-step explanation:

So we have 6, 12, and 6.

Add them all together to get 24

12 of the skittles are green, so find the percentage/decimal.

12/24 = 0.5 (or 50%)

What’s the answer to this

Answers

Answer:

Step-by-step explanation:

Use angle bisector theorem

(3x-3)/5x = 24/44

Solve:

x= 6

X would be 6 I completely agree with them

Under his cell phone plan, Anthony pays a flat cost of $56 per month and $4 per gigabyte. He wants to keep his bill under $70 per month. Write and solve an inequality which can be used to determine xx, the number of gigabytes Anthony can use while staying within his budget.

Answers

Answer:

x ≤ 3.5 gigabytes

Step-by-step explanation:

Under his cell phone plan, Anthony pays a flat cost of $56 per month and $4 per gigabyte. He wants to keep his bill under $70 per month.

Let us represent the number of gigabytes = x

Hence, our Equation is:

$56 + $4 × x ≤ $70

56 + 4x ≤ 70

Collect like terms

4x ≤ 70 - 56

4x ≤ 14

x ≤ 14/4

x ≤ 3.5 gigabytes

Therefore, the number of gigabytes Anthony can use while staying within his budget is less than or equal to 3.5 gigabytes

Lucille wants to carpet her family room. Her family room is rectangular and has a length of 21 feet and a width of 17 feet. How many square feet of carpet will Lucille need to buy? feet? If the carpet costs $2.25 a square foot, how much money will it cost Lucille to carpet her family room? ​

Answers

Answer:

$803.25

Step-by-step explanation:

Given data

Dimension for the room

Length= 21 ft

Width= 17ft

Area= L*W

Area= 21*17

Area= 357 ft^2

Lucy will need to get 357ft^2 of carpet

We are given that a square ft cost $2.25

Hence to carpet the room the cost will be $2.25*357= $803.25

Given acd and abe, what is ab?

Answers

Answer:

AB  = 8

Step-by-step explanation:

Using the similarity theorem of a triangle;

AC/AD = AB/AE

AC = AB + BC and AD = AE + ED

AB + BC/AE + ED = AB/AE

Substitute the given values

AB+12/15 = AB/6

Cross multiply

6(AB+12) = 15AB

6AB + 72 = 15AB

15AB - 6AB = 72

9AB = 72

AB = 72/9

AB = 8

Which equation is equivalent to the square root of x^2 + 81 = x + 10

Answers

Answer:

D is the correct answer

Step-by-step explanation:

I took the test and got it right

Can I please get brainlest

Is it possible for two numbers to have a difference of 8, and a sum of 1?

Answers

Answer:

It depends on the type of numbers that are acceptable. If you state your problem in words

x - y =8

x + y = 1

The answers are    x = 4.5

                           y = -3.5

A monarch butterfly flies about 80 miles per day. So far it has flown 60 miles. In the equation 80-m=60, m represents the number of miles it has yet to fly that day. Find the solution to the equation.

Answers

Answer:

20

Step-by-step explanation:

Subtract 60 from both sides, 60-60 cancels out and 80-60 is 20

m=20

Round 82736 to 1 significant figure

Answers

Answer:

80000

Step-by-step explanation:

Here, we want to round off the given number to one significant figure

We have this as;

80000

We have numbers after 8 changed to zero

A plane takes off at 54 degrees latitude. It flies directly south and lands at -12 degrees latitude. Which expression represents the difference in latitude?

❘-12 - 54❘
-❘54❘ + ❘-12❘
❘54 - 12❘
-❘54❘ - ❘12❘

Answers

Answer: -|54| - |12| because -54-12 is equal to -66 and 54-66= -12
hope this helps/helped
54 - (-12) = 66
|-12-54| = 66

∴ answer is |-12-54|
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