Two candles of equal height start to burn simultaneously. One of the candles is thicker than the other one and burns out in 4 hours, while the thinner one burns out in 2 hours. Both of the candles are extinguished after some time, and the remaining height of the thicker candle is now 3 times as long as the thinner one. How many minutes were the candles burning for?

Answer:

Step-by-step explanation:

Three line segments can form a triangle if the length of the longest segment is greater than the sum of the lengths of the shorter segments.

4.1 + 8.2 > 12.2

12.3 > 12.2

true 

They can form a triangle.

Now if c is the length of the longest side and a and b are the lengths of the shorter sides, then:

- if , [tex]c^{2}[/tex] = [tex]a^2 + b^2[/tex] the triangle is right

- If [tex]c^2 < a^2 + b^2[/tex]

- if  [tex]c^2 > a^2 + b^2[/tex] the triangle is obtuse

[tex]4.1^2 + 8.2^2 = 16.81 + 67.24 = 84.05\\12.2^2 = 148.84\\148.84 > 84.05[/tex]

The triangle is obtuse.

Answer:

x=15

AOB= 15

COB= 165

Step-by-step explanation:

Step-by-step explanation:

use the image below to help

Answer:

106.81 cm or 107 cm.

Step-by-step explanation:

The formula for finding the circumference (perimeter) of a circle is 2 times pi times r or the radius of the circle, or you can find the diameter by multiplying the radius by 2, in this case 34 and multiply that by pi. The diameter is 34 so multiply that by pi and you get 106.81 cm as an approximate. Hope this helps!

The circumferences of the circle is 106.76 cm.

The circumference is the length of any great circle, the intersection of the sphere with any plane passing through its centre.

Given that, a circle has radius = 17 cm

We know that, circumference = π × diameter

diameter = 2 × radius = 17 × 2 = 34

circumference = 34 × 3.14 = 106.76 cm

Hence, the circumference of the circle is 106.76 cm

For more references on circumference, click;

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Answer:

x > -1

Step-by-step explanation:

Answer:

[tex]x>-1[/tex]

Step-by-step explanation:

[tex]5 - 2x < 7[/tex]

[tex]5-2x-5<7-5[/tex]

[tex]-2x<2[/tex]

[tex]$\frac{2x}{2}>\frac{-2}{2}$[/tex]

[tex]x>-1[/tex]

Answer:

34 feet

Step-by-step explanation:

(Length + Width) x 2

Answer:

It would be 34

Step-by-step explanation:

You would add up the sides by doing 8+8+9+9 or (8x2)+(9x2)

Answer:

21

Step-by-step explanation:

Answer:

105 pages in 7 minutes

Step-by-step explanation:

cross multiply

hope this helped

Answer:

Its 8

Step-by-step explanation:

Answer:

8

Step-by-step explanation:

Answer:

bread

cereal

milk

eggs

Step-by-step explanation:

Answer:mebc,embc, bcem,bcme.

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

Lateral surface area = surface area - bases

2(8(11) + 8(5)) =

256 <--- Lateral Surface Area

The bases have areas of 11*5 = 55

Multiply that by 2 and add to 256

256 + 110=

366 <---Surface Area

The area of the circle is found by substitifying the radius into the formula A = πr². In this case, with a given radius of 6.5 cm and π as 3.142, the calculated area is approximately 132.732 square centimeters.

To find the area of a circle, you use the formula A = πr², where A represents the area, π is a mathematical constant whose value is given as 3.142 in this case, and r is the radius of the circle.

Since the radius (r) is not directly mentioned in the question, we should understand that the given 13 cm refers to the diameter of the circle, hence the radius will be half, i.e., 13/2 = 6.5 cm.

Substituting these values into the formula gives: A = 3.142 * (6.5)². When you perform the calculation, the result would be about 132.732 square centimeters.

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Answer:

4/5

Step-by-step explanation:

To find the slope given two points

m = (y2-y1)/(x2-x1)

   = (-1 -3)/(-3 -2)

    =-4/-5

    = 4/5

We can use the points (2,3) and (-3,-1) to solve.

Slope formula: y2-y1/x2-x1

= -1-3/-3-2

= -4/-5

= 4/5

Best of Luck!

Answer:

[tex]D={x,-1<=x<=5}, R={y,-6<=y<=4} [/tex]

Step-by-step explanation:

by graphing interpretation, horizontal range is the domain and vertical range is the range. buat your problem is an oval which not a function.

Answer:

t = 10n + 25

Step-by-step explanation:

At the end of n weeks, the total amount that Melissa would have can be found by the function, t = 25 + 10n.

Melissa made $25 from washing her mother's car and keeps it aside.

She then makes $10 every week. This means that in n number of weeks, the amount she would have made from chores is:

= Amount per week x number of weeks

= 10 x n

= 10n

The total she would then have in n weeks is:

= Amount saved from mother + Amount earned from chores in n weeks

= 25 + 10n

This total is t, so the total function is t = 25 + 10n.

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Answer:

[tex]\frac{2}{3}[/tex]

Answer:

2/3

Step-by-step explanation:

Divide both the numerator and denominator by the GCD

88 ÷ 44

132 ÷ 44

Reduced fraction:  

2

3

Therefore, 88/132 simplified is 2/3

Answer:

I think the answer is 1'8 3'8

Answer:

Step-by-step explanation:

Answer

I got p-19 i might be wrong

Step-by-step explanation:

Answer:

brainliet plssssss

Step-by-step explanation:

Let's simplify step-by-step.

−2(p+4)^2−3+5p

Distribute:

=−2p^2+−16p+−32+−3+5p

Combine Like Terms:

=−2p^2+−16p+−32+−3+5p

=(−2p^2)+(−16p+5p)+(−32+−3)

Answer: D) 1/14

Work Shown:

There is 1 orange marble out of 7 total. The probability of picking an orange marble is 1/7. Let A = 1/7 which we'll use later.

The probability of flipping tails is 1/2 because 1 side is tails out of 2 sides total. Let B = 1/2

Multiply A and B

A*B = (1/7)*(1/2) = (1*1)/(7*2) = 1/14

This represents the probability of getting an orange marble and flipping tails.

We are able to multiply the probabilities because the two events (picking a marble and flipping a coin) are independent.

Answer:

The answer would 1/14 :)

Step-by-step explanation:

Answer:

There were 25 pizzas made last week.

Step-by-step explanation:

It is given that 64% of the pizzas had extra cheese and 16 pizzas had extra cheese. So it means that 64% is equals to 16 pizzas. In order to find how many pizzas were made, you have to find the remaining percentage of pizzas without extra cheese by subtracting 64% from 100% :

100 - 64 = 36 % of pizzas without extra cheese

64 % = 16 pizzas

1 % = 1/4 pizza

36 % = 9 pizzas

We have found out that 9 pizzas were made without extra cheese. The total pizzas were made last week is 25 pizzas (including extra cheese and no extra cheese) :

Total = Extra Cheese + No extra cheese

= 16 + 9

= 25 pizzas

Answer:

6.40312424 feet

Step-by-step explanation:

using the pythagreons theorm you can find the missing side

a^2 + b^2 =c^2

5 x 5 + 4x4 = 41

then you find the square root of 41

the length would be 6.40312424 feet

1. C. Exponential form. Exponential form is just taking one number and raising it to another number. Example: 2^3

2. H. Power is correct. A power is the upper number of an exponential.

3. G. Perfect square. Squaring a whole number represents the area of a square, which is where the term comes from.

4. J. Quotient. A quotient is a result of dividing two numbers.

5. D. Expression. An expression is anything that involves numbers and variables. Specifically using the order of operations on them or some kind of math function.

6. i. Product. A product is a result of multiplying two or more numbers or variables.

7. E. Factors. In this case, it shows 12 having the factors: 1, 2, 3, 4, 6, 12. Factors of 12 are numbers that pair up and multiply to get 12, so for instance 3*4 = 12.

8. A. Base. You are correct. Nice work. The base of an exponential expression is the lower number or variable.

9. B. Expanded form. This is showing it being fully factored as much as possible.

10. F. Perfect cube. A perfect cube is a number that results in taking any whole number and multiplying it by itself 3 times. Example: 7 cubed = 7^3 = 7*7*7 = 343

Answer:

positive 1

Step-by-step explanation:

hope it helps.

give me the brain PLZ:)

Answer:

Step-by-step explanation:

To find the common ratio

First term=-2

r=6/-2

r=-3

Or

r=54/-18

r=-3

Answer:

153 units squared

Step-by-step explanation:

A= 1/2 (b1 + b2)h

A= 1/2 (10+24)9

A= 1/2 (34)9

A= 1/2 306

A= 153

Answer:

Step-by-step explanation:

a = 7+10+7 = 24 units

b = 10 unit

h = 9

Area=(a + b)*h / 2

[tex]=\frac{(24+10)*9}{2}\\\\=\frac{34*9}{2}\\\\=17*9\\\\=153 unit^{2}[/tex]

Answer:

true

Step-by-step explanation:

1. simplfy the expression to 7^2 *8/7^3=8/7.

2. that'll give u 8/7=8/7

Answer:

Total lateral surface of the pyramid = 54 [tex]cm^{2}[/tex]

which agrees with the first listed answer.

Step-by-step explanation:

Notice that the pyramid has for base an equilateral triangle of base 5 cm, and has three lateral triangles which have all the same dimensions for their base (5 cm - since they are all connected to the base of the pyramid), and their height (7.2 cm).

The actual LATERAL surface, includes only the surface of the three lateral triangles.

We use the formula for the area of a triangle: [tex]Area=\frac{base \,*\, height}{2}[/tex]

to calculate the area of each lateral triangle:

[tex]Area=\frac{5\,cm \,*\, 7.2\,cm}{2} \\Area=18 \,cm^2[/tex]

and then multiply the result by three (to account for the three lateral faces)

Therefore, the total lateral surface is:

Total lateral surface = 3 * 18 = 54 [tex]cm^{2}[/tex]