Nature tends to repeat itself, and that means periodic phenomenon is found in many places. One example would be a heart beating. It repeats itself over and over to pump blood throughout the body. The period of the heartbeat varies, so it's not going to be one specific number.
One online source I found states "It beats or contracts about 70 times per minute". So that would make the period 60/70 = 0.86 seconds approximately. Every 0.86 seconds or so, the heart completes a full cycle. This is when the person is at rest and not doing any strenuous physical activity (in which case, the period would be much shorter).
Another biological example would be the act of breathing. This is also dependent on if the person is at rest or if they're doing some physical activity such as jogging.
As for an example that's outside the personal element, you could go for something like the motion of the tides. These periodic events are due to the position of the moon, which is also a periodic phenomenon. More broadly, the motion of the planets overall is periodic. However, there may be slight changes here and there as time goes on due to imperfections.
Periodic phenomena has to do with an event that repeats itself.
What is a periodic phenomena?The term periodic phenomena has to do with an event that repeats itself. This repetition must follow a well defined pattern and the time in between the occurrence of the phenomena is called the period.
Two common examples of periodic periodic phenomenon are;
1) Day and light
2) The dropping of water from a closing tap.
The former is quite popular and the period of the phenomenon is 24 hours. In the later case, the period may range a little above five seconds or below.
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Find the volume of the composite figure. Round to the nearest tenth. (Hint: Volume of a cone is V= 1/3 pie^2 h)
Answer:
the answer is in the pic so like yea hope that helps
Use the shell method to write and evaluate the definite integral that represents the volume of the solid generated by revolving the plane region about the y-axis.
y = x^3/2,
y=8
x=0
Solution :
[tex]$y=x^{3/2}, \ \ y =8, \ \ x=0$[/tex]
[tex]$v=2 \pi \int_0^4 x (8-x^{3/2}) \ dx$[/tex]
[tex]$= 2\pi \left(\frac{8x^2}{2}-\frac{x^{7/2}}{7/2}\ \left|_0^4[/tex]
[tex]$=2\pi \left( 4x^2-\frac{2}{7}x^{7/2}\ |_0^4$[/tex]
[tex]$=2\pi \left( 64-\frac{2}{7} \times 32 \times 4 \right)$[/tex]
[tex]$=2\pi \left(1-\frac{4}{7} \right) 64$[/tex]
[tex]$=128 \pi \times \frac{3}{7}$[/tex]
[tex]$=\frac{384 \pi}{7}$[/tex]
A high school football team has raised $1000 to spend on team jackets. The cost is $50 per jacket. Which equation below can be used to solve for the number of jackets the team can buy? Explain.
A. 50 = 1000n
B. 50n = 1000
C. 1000n = 50n
Find the missing part.
Z=
Answer:
Step-by-step explanation:
To answer this, we need only solve for x and then use Pythagorean's Theorem to find z. We have the length of the hypotenuse which is 15, and we also have the base angle of 60. To solve for x we can use the trig ratio
[tex]cos60=\frac{x}{15}[/tex] and
x = 15cos60 which gives us that
x = [tex]\frac{15}{2}[/tex]
Now we can use Pythagorean's Theorem to find z, the other leg of the big triangle.
[tex](\frac{15}{2})^2+z^2=15^2[/tex] and
[tex](\frac{225}{4})+z^2=225[/tex] and
[tex]z^2=225-\frac{225}{4}[/tex] and getting a common denominator:
[tex]z^2=\frac{900}{4}-\frac{225}{4}[/tex] and
[tex]z^2=\frac{675}{4}[/tex] now we take the square root by simplifying the radical to get
[tex]z=\frac{15\sqrt{3} }{2}[/tex]
and that's what goes into the blanks there, one number per blank.
Find x, cb, and db, in the image below . AB is the angle bisected if
** Fill the blanks**
Answer:
We know,
CB = BD
The equation,
2(x-1)=3x-11
solve for x,
x=9
CB = 16
DB = 16
Answered by GAUTHMATH
4. What are the next three numbers in this pattern? 7,4, 1, -2
-7, -4,-1
1,4,7
-5, -8, -11
-3, -6, -9
Answer:
-5, -8, -11
Step-by-step explanation:
Common difference:
[tex]d = 4 - 7 \\ d = - 3[/tex]
Answer:
- 5, - 8, - 11
Step-by-step explanation:
The common difference between the given terms is
4 - 7 = 1 - 4 = - 2 - 1 = - 3
The to find the next term subtract 3 from the previous term , that is
- 2 - 3 = - 5
- 5 - 3 = - 8
- 8 - 3 = - 11
what is constant in graphing ?
Answer:
the constant is the number without an x attaches to it.
Ex:
y = 2x + 9
9 is a constant because it is not attached to any x
y = x^3 + 2x^2 + 10x + 19
19 is a constant because it is not attached to any x
Estimate the sum of 7.2 + 7.3 + 6.9 + 6.8.
Answer:
28
Step-by-step explanation:
7.2 is rounded down to 7, 7.3 is rounded down to 7, 6.9 is rounded up to 7, and 6.8 is rounded up to 7. Then you can add 7+7+7+7 to get an estimation of 28.
PLEASE HELPPPPPP!! I need to find x!!!!
Here
[tex]\\ \sf\longmapsto \frac{7}{x} = \frac{15}{10} \\ \\ \sf\longmapsto 7 \times 10 = 15x \\ \\ \sf\longmapsto 15x = 70 \\ \\ \sf\longmapsto x = \frac{70}{15} \\ \\ \sf\longmapsto \boxed{ \sf x = 4.6cm}[/tex]
Answer:
i can help you i know this answer
Help me with this please I don’t understand
Answer: IT IS CONGRUENT BY ASA POSTULATE.
Step-by-step explanation:
ACCORDING TO THE GIVEN IMAGE
CONSIDER TRIANGLE 1 AS TRIANGLE ABC AND TRIANGLE 2 AS TRIANGLE PQR
IN TRIANGLE ABC AND PQR
ANGLE B = ANGLE C ( 90 DEGREES )
AC = PR ( GIVEN IN FIGURE )
A TRIANGLE HAS SUM OF INTERIOR ANGLES AS 180 DEGREES
IF ANGLE B AND ANGLE Q ARE 90 DEGREES, ANGLE A + ANGLE C = ANGLE P + ANGLE R
WE HAVE ALREADY PROVED THAT AC = PR
If two triangles have one angle equal to one angle, two sides adjoining the equal angles equal, namely, one side adjoining the equal angles, and one opposite the equal angles, and the remaining angles either both less or both not less than a right angle, then the remaining side equals the remaining side and the remaining angles equal the remaining angles.
SO ANGLE A = ANGLE P
THEREFORE BY ASA CONGRUENCY TRIANGLE ABC IS CONGRUENT TO TRIANGLE PQR
HOPE IT HELPS YOU......
(IF I HAVE MADE ANY MISTAKES PLS COMMENT BELOW)
SOMEONE HELP ME PLEASE
Answer:
x=72
Step-by-step explanation:
Let y=kx and y=a/x^2. y(48)=8, k=(1/6). y=(1/6)*x. 12=(1/6)*x. x=72
In circle Y, what is m <1?
37
06
0 25°
O 31°
0 37°
Answer:
∠1=a+b/2
∠1=37+25/2
∠1=31
Answer: C) 31
-------------------------
Hope it helps...
Have a great day!!!
The angle measure of angle ∠1 is 31°.
The correct option is C.
What is an angle measure?When two lines or rays intersect at a single point, an angle is created. The vertex is the term for the shared point. An angle measure in geometry is the length of the angle created by two rays or arms meeting at a common vertex.
Given information:
The circle is centered at y.
As per the provided diagram,
The angle measure of an arc let a = 37°.
And b = 25°.
To find the angle measure of ∠1:
Apply formula (a + b)/2,
So as per the provided values of a = 37° and b = 25°.
Therefore,
m∠1 = (37 + 25)/2
m∠1 = 62/2
m∠1 = 31°.
Therefore, m∠1 = 31°.
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What is the probability of rolling 2 standard dice which sum to 9?
HELP ME PLEASE
23. Two swimmers are training over a two-week period to increase the number of laps each can do consecutively. Swimmer A can do 14 laps to start, and increase her total by 3 laps each day. Swimmer B is charting her progress in the table below. Compare the initial values for each.
Answer:
Answer is A
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
Answer is C because if swimmer A does 14 laps to start an 3 laps every day after that and on the chart swimmer B does 11 laps to start and 2 laps every day after that you would compare.
on day 3 swimmer B has 17 (shown on chart)
on day 3 swimmer A has 23 (14, 17, 20, 23)
if you would want it to complicate it 14:3 and 11:2
14 ÷ 14 is 1
3 ÷ 14 is .214
11 ÷ 11 is 1
2 ÷ 11 is .181
Factor of 3x^3-x^2-20x-12
Answer:
(−3)(+2)(3+2)
Step-by-step explanation:
Factor by grouping
Factor by grouping
Factor by grouping
Factor by grouping
(−3)(32+8+4)
Factor by grouping
Factor by grouping
Factor by grouping
Factor by grouping
(−3)(+2)(3+2)
Please help me solve this, and show your work
Answer:
16. 25/45 ; 18/45
17 4/7; 4/7
Step-by-step explanation:
5/9 and 2/5
The common denominator is 45
5/9 * 5/5 = 25/45
2/5 *9/9 = 18/45
4/7 and 12/21
Simplify 12/21 by dividing by 3 in the numerator and denominator
12/21 = 4/7
4/7; 4/7
The common denominator is 7
16:25/45;18/45
17: 4/7;4/7
Answer:
16:5/9;2/5
Common denominator is 9*5=45
now
make a equal denominator
5/9=5/9*5/5=25/45
2/5=2/5*9/9=18/45
and
17: 4/7;12/21
common denominator =7
4/7
12/21=4/7
PLEASE HELP I WILL GIVE BRAINLEIST
People use data and statistics to help them make important policy decisions, to identify
problems in an organization, and to predict outcomes. In this unit, you studied various
ways to analyze and represent data sets to determine how to best interpret the data.
You also learned how to critically examine the data and account for outside factors that
may influence the patterns you see in the data.
Think about the many statistical scores or rankings you receive in school, such as GPA,
SAT and ACT scores, test scores, and class ranking. Describe the usefulness and
limitations of these pieces of data in defining who you are as a person or as a student.
In what ways do they help give a clear picture? What are they not conveying?
Answer:
they help you in the future and help getting a job in the future and they don't convey because its good and not bad for you.
Step-by-step explanation:
what is 3 over 4 divided by 1 over 6
Place the expressions that are equivalent under the corresponding expression in the table.
20
130
3
8.12
- 1)
2:2
12-1
21=-11 # 1 - 2
1212
II + 3)
472
I + 3 2(1 - 1)
-1 2:2
3(12 - 1)
32 – 23 – 3+.
Answer:
Step-by-step explanation:20
20 130 3 8.12 - 1) 2:2 12-1 21=-11 # 1 - 2 1212 II + 3) 472 I + 3 2(1 - 1) -1 2:2 3(12 - 1) 32 – 23– 3+.
Solve for ż in the following equation: 1 - iz=-1 +iz (where i? = -1). Simplify your answer as much as possible.
Answer:
z = -i
Step-by-step explanation:
1 - iz=-1 +iz
Add iz to each side
1 - iz+iz=-1 +iz+iz
1 = -1 +2iz
Add 1 to each side
1+1 = -1+1 +2iz
2 = 2iz
Divide by 2
2/2 = 2iz/2
1 =iz
Divide by i
1/i = iz/i
1/i =z
Multiply the left by i/i
i/i^2 = z
i/-1 =z
-i =z
10 POINTS!! PLEASE HELP!!
Answer:
only the third answer is right.
Step-by-step explanation:
to solve it, we need to bring everything to the same denominator (the expression below the division line) or eliminate it completely.
how do we do it ? by multiplying everything with the same expression, so that we can eliminate the denominator for every term.
when looking for the best option I see that
(x² + 5x + 6) = (x + 2)×(x + 3)
that is great, because this covers all 3 denominators in our main expression.
so, we multiply everything by ((x+2)×(x+3)) and eliminate the denominators and the corresponding part of our multiplier.
that leaves us with
x×(x+3) + 2 = 5×(x+2)
now we simply simplify the expression
x² + 3x + 2 = 5x + 10
x² - 8x - 8 = 0
a squared equation has typically 2 solutions. and they are defined as
x = (-b ± sqrt(b² - 4ac)) / (2a)
in our case
a = 1
b = -8
c = -8
x = (8 ± sqrt(64 + 32)) / 2 = (8 ± sqrt(96))/2 =
= (8 ± sqrt(16×6))/2 = (8 ± 4×sqrt(6))/2 = 4 ± 2×sqrt(6)
x1 = 4 + 2×sqrt(6)
x2 = 4 - 2×sqrt(6)
both solutions are different from -2 or -3, therefore -2 and -3 are not solutions at all, and they cannot be extraneous solutions either for that reason.
and since we have 2 perfectly fine solutions, the answer options work no or only one solutions are wrong too.
What is the value of the interquartile range of the data below? A box-and-whisker plot. The number line goes from 0 to 52. The whiskers range from 10 to 51, and the box ranges from 29 to 41. A line divides the box at 32. 6 12 14 24
Answer:
12
Step-by-step explanation:
The interquartile range is the difference between the lower quartile and the upper quartile
We can find the quartiles at the beginning and the end of the box
At the beginning of the box, we have the lower quartile, while at the end, we have the upper quartile
from what we have ;
The lower quartile is 29 while the upper quartile is 41
So the difference between the two which is the interquartile range is ;
41-29 = 12
Answer:
12
Step-by-step explanation:
help question on the image
Answer:
Yes Ella has enough to make 30 mince pies
Step-by-step explanation:
Step-by-step explanation:
to make 36 mince pies you will need
400g of butter
500g of flour
300g of sugar
500g of mince meat
2 eggs
Ella has 1000g of butter
1000g of flour
500g of sugar
600g of meat
6 eggs
these ingredients are more than enough because
1000g-400g=600g-butter
1000g-500g=500g flour
500g-300g=200g sugar
600g-500g=100g mince meat
6-1= 5 eggs
if she were to follow the 36 pie recipe, which is two times the 18 pie recipe
but like I don't know, because it says a recipe for 18 mince pies, but in the box it says 12
A rotation was applied to parallelogram GRAM. What is the length of R'A'? 1.5 cm 1.6 cm 3.0 cm 3.2 cm
Answer:
The answer is below
Step-by-step explanation:
The question is not complete, but I will show how to solve it.
Transformation is the movement of a point from its initial location to a new location. Types of transformation are rotation, reflection, translation and dilation.
Rigid transformations are transformations that do not change the size or shape of the object. Types of rigid transformations are rotation, reflection and translation.
Since rotation is a rigid transformation so the sides of the parallelogram does not change, hence:
R'A' = RA
Answer:
3.2
Step-by-step explanation:
F(x) = 6x+2, find f (x+3)
Answer:
6x+20
Step-by-step explanation:
F(x) = 6x+2
f(x+3) means replace x with x+3
F(x+3) = 6(x+3)+2
= 6x+18+2
= 6x+20
Answer:
A; F(x+3) = 6x^2 + 20x + 6
Step-by-step explanation:
To find it you just would multiply F(x) onto the other side. So it would look like this:
F(x+3) = 6x + 2 (x+3)
F(x+3) = 6x^2 + 2x + 18x + 6 *combine like terms getting you
F(x+3) = 6x^2 + 20x + 6
Hope this helped!!
(4 1/3-1 2/5) divided 4/15
Answer:
11
Is it (4 1/3-1 2/5) divided by 4/15 I don't really know what you mean
Use the Factor Theorem to prove x^3 - 13x - 12 is divisible by x^2 – X – 12
Answer:
See Below.
Step-by-step explanation:
We want to prove that:
[tex]x^3-13x-12\text{ is divisible by } x^2-x-12[/tex]
We can factor the divisor:
[tex]x^2-x-12=(x-4)(x+3)[/tex]
According to the Factor Theorem, if we have a polynomial P(x) divided by a binomial in the form of (x - a) and if P(a) = 0, then the binomial is a factor of P(x).
Our two binomial factors our (x - 4) and (x + 3). Thus, a = 4 and a = -3.
Evaluate the polynomial for both of these factors:
[tex]P(4)=(4)^3-13(4)-12=0[/tex]
And:
[tex]P(-3)=(-3)^3-13(-3)-12=0[/tex]
Since both yielded zero, the original polynomial is divisible by both (x - 4) and (x + 3) or x² - x - 12. Hence:
[tex]x^3-13x-12\text{ is indeed divisible by } x^2-x-12[/tex]
What is the equation of the graph ? ILL pay
Answer:
Step-by-step explanation:
You have it right it is 6^x -3
You have the right idea, but you don't need to type in the "y=" portion since that is already taken care of. So you just need to type in -3 + 6^x
Find side b, in triangle ABC. if angle B =42 degrees, a=6, c=4
Answer:
There is no valid value for b
Step-by-step explanation:
We solve the above question using the law of cosines
b² = a² + c² - 2ac × Cos B
B = 42°, a = 6, c = 4
b² = 6² + 4² - 2 × 6 × 4 × Cos 42
b =√6² + 4² - 2 × 6 × 4 × Cos 42
b = √36 + 16 - 48 × Cos 42
Solving the above question, there is no valid value for b
Solve for the unknown angles. Justify your answers with steps (do not just provide answers)
Answer:
PNQ=117
LKQ=102
Step-by-step explanation:
LKQ=180-78=102
KQN=180-67=113
LNQ=360-82-102-113=63
PNQ=180-63=117
Answer:
∠ LKQ = 102°, ∠ PNQ = 117°
Step-by-step explanation:
∠ LKQ = 180° - 78° = 102° ( adjacent angles on a straight line )
∠ KQN = 180° - 67° = 113° ( adjacent angles on a straight line )
The sum of the interior angles of a quadrilateral = 360° , then
∠ LNQ = 360° - (102 + 113 + 82)° = 360° - 297° = 63°
Then
∠ PNQ = 180° - 63° = 117° ( adjacent angles on a straight line )
