find the length of the arc using 3.14! show work please, 30 points.

Answer:

15

Step-by-step explanation:

The base would be 3*3, as it's a square. There are 4 triangles, and the area of each triangle is 1*3/2=1.5. 1.5*4+9=15.

Answer:

25 x 0.84 ^ h = X

After 4 hours there will be 12.45 milligrams of the medicine, and after 8 hours there will be 6.20 milligrams of it.

Step-by-step explanation:

Given that a particular medicine decays at a rate of 16% every 4 hours, if a person takes a 25 mg dose, to write a function that represents the amount of medicine after h hours, and determine how much is left after 4 hours and 8 hours, the following calculations must be performed:

100 - 16 = 84

25 x 0.84 ^ h = X

25 x 0.84 ^ 4 = X

25 x 0.4978 = X

12.45 = X

25 x 0.84 ^ 8 = X

25 x 0.2478 = X

6.20 = X

Therefore, after 4 hours there will be 12.45 milligrams of the medicine, and after 8 hours there will be 6.20 milligrams of it.

Answer:

The current population of Madagascar is 28,354,778 as of Thursday, June 10, 2021, based on Worldometer elaboration of the latest United Nations data.

Madagascar 2020 population is estimated at 27,691,018 people at mid year according to UN data.

Madagascar population is equivalent to 0.36% of the total world population.

Madagascar ranks number 51 in the list of countries (and dependencies) by population.

The population density in Madagascar is 48 per Km2 (123 people per mi2).

The total land area is 581,795 Km2 (224,632 sq. miles)

38.5 % of the population is urban (10,670,252 people in 2020)

The median age in Madagascar is 19.6 years.

Step-by-step explanation: i dont know man

Answer:

The answer is probably c

Step-by-step explanation:

its deducted by the x axis

Answer:

B

Step-by-step explanation:

Answer:

After the third bounce the ball reaches a height of less than 50cm.

Step-by-step explanation:

Geometric sequence:

In a geometric sequence, the quotient between consecutive terms is always the same, and it's called common ratio. The nth term of a geometric sequence is given by:

[tex]A_n = A_0(r)^{n}[/tex]

In which [tex]A_0[/tex] is the first term and r is the common ratio.

A ball is dropped from a height of 5m.

This means that [tex]A_0 = 5[/tex]

After each bounce it rises to 35% of its previous height.

This means that [tex]r = 0.35[/tex]

Thus

[tex]A_n = A_0(r)^{n}[/tex]

[tex]A_n = 5(0.35)^{n}[/tex]

After how many bounces does the ball reach a Height of less than 50cm?

50cm = 0.5m. This is n for which [tex]A_n = 0.5[/tex]. Thus

[tex]A_n = 5(0.35)^{n}[/tex]

[tex]0.5 = 5(0.35)^{n}[/tex]

[tex](0.35)^n = \frac{0.5}{5}[/tex]

[tex](0.35)^n = 0.1[/tex]

[tex]\log{(0.35)^n} = \log{0.1}[/tex]

[tex]n\log{0.35} = \log{0.1}[/tex]

[tex]n = \frac{\log{0.1}}{\log{0.35}}[/tex]

[tex]n = 2.19[/tex]

Rounding up:

After the third bounce the ball reaches a height of less than 50cm.

Answer:

The ratio is 5:3 because there are 5apples and 3 pears

Answer:

B =43.7

Step-by-step explanation:

take angle b as reference angle

using sin rule

sin B =opposite/hypotenuse

sin B =9/13

sin B =0.69

[tex]B =sin^{-1} (0.69)[/tex]

B =43.63

B =43.7

Step-by-step explanation:

w-(-2)=49

or, w+2=49

or, w= 47

which is the required equation.

Answer:

[tex]{ \bf{w - ( - 2) = 49}} \\ \\ { \boxed{ \tt{w + 2 = 49}}}[/tex]

(x-4)²+(y-6)² =100 is the equation of the circle with a center of (4,6) and a radius of 10 units

A circle is a shape consisting of all points in a plane that are at a given distance from a given point, the centre.

The standard equation of a circle is (x-h)²+(y-k)² =r²

In the equation (h, k) represents the center of the circle.

r is the radius of the circle.

From given that circle with a center of (4,6) and a radius of 10 units.

We need to find the equation of the circle.

Substitute h=4, k=6 and r=10

We get  (x-4)²+(y-6)² =10²

Hence,   (x-4)²+(y-6)² =100 is the equation of the circle with a center of (4,6) and a radius of 10 units.

To learn more on Circles click:

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Answer:

y = 5

Step-by-step explanation:

This is a horizontal line.  The value of y does not change

The equation is of the form y = constant

y = 5

Answer:

y = 5

Step-by-step explanation:

Answer:

This has some fact to it. Its sorta tricky but I'd say False.

Step-by-step explanation:

Answer:

128 sq units :)

Step-by-step explanation:

hope this helps! have a great day :)

Answer:

C po

Step-by-step explanation:

sana maka tulong po sayo

Answer:

0.1007

Step-by-step explanation:

Given :

Average gain, μ = 0.8

Standard deviation, σ = 0.7

Number of companies, n = 20

Obtaining the standardized value ;

Zscore = (x - mean) / (σ/√n)

Zscore = (1 - 0.8) / (0.7/√20)

Zscore = (0.2 / 0.1565247)

Z = 1.27775

Using the Z probability calculator :

P(Z > 1.27775) = 0.10067

P(Z > 1.27775) = 0.1007 ( Z probability calculator)

Answer:

Perimeter=110mm

Area=370mm²

Step-by-step explanation:

In Attached pictures

please give me brainliest if it help you

Answer:

39.75

Step-by-step explanation:

so first we do 50-11.50-3.75+5. to simplify it 55-15.25

if u do the math that equals 39.75

to double check 39.75+15.25=55

The answer is 3.2

Hope this answer is right!

Answer:

Unisciti prestu è tornerete à u megliu di LUCKY hè un mc da spada arte di fà u pudete vede a mo quantità enorme di tempu per esplorà novi modi di ur affari Outta

Answer:

16.0"

Step-by-step explanation:

ASSUME the pyramid is a square right pyramid.

height = 15"

base side length = 11"

(Following edited/corrected thanks to cwrw238)

Slant height

= sqrt(5.5²+15²)   using Pythagoras theorem

= sqrt(255.25)

=  15.98"

Answer:

Slant height = 15.98 in to nearest hundredth.

Step-by-step explanation:

Use Pythagoras theorem.

The triangle we want  has a height of 15 , base of 1/2*11 = 5.5 and we need the length of the hypotenuse.

h^2 = 5.5^2 + 15^2 = 255.25

h = 15.976.

your marks 9 my marks 5

Step-by-step explanation:

1/2 of 14 = 7

7 + 2 = 9

14 - 9 = 5

so your marks are 9 and mine are 5

Hope this helped ..

A cone with a base circumference of 6 pi and a height equal to half the radius. The volume of the cone is 42.39.

The volume of the cone is the product of one-third of the height, pie, and square of the radius.

The volume of the cone = 1/3 [tex]\pi r^{2} h[/tex]

A cone with a base circumference of 6 pi and a height equal to half the radius.

The circumference of the circular base = 2πr

                                                        6π  =  2πr

                                                          r = 3

The radius of the circular base of a cone is 3 unit.

A height equal to half the radius. Thus, the height is 1.5

The volume of the cone = 1/3 [tex]\pi r^{2} h[/tex]

                                         = 1/3 (3.14) (9)(1.5)

                                         =  42.39

Learn more about volume;

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Answer:

mean will be find in that method

hence, correct option is B

42.6 I believe because you would divide 128 by 3.

Answer: 27.532

Step-by-step explanation:

0.53>0.52

Answer:

27.532

27.532 is greater because .532 is greater than 523

Hope this help!!!

Have a nice day!!!