Once a week you babysit your neighbor's toddler after school, usually going to
a local playground. You notice that each swing on the swing set takes nearly
the same amount of time, about 2.7 seconds. Use the pendulum formula
below to find out how long the swing is. Round your answer to the tenths
place.
Answers
Answer:
l = 1.8 feet
Step-by-step explanation:
Given that,
The time period of the pendulum, T = 2.7 seconds
We need to find the length of the swing. The formula for the time period of a simple pendulum is given by :
[tex]T=2\pi \sqrt{\dfrac{l}{g}}[/tex]
Where
l is the length of the swing.
[tex]T^2=\dfrac{4\pi^2l}{g}\\\\l=\dfrac{T^2g}{4\pi^2}\\\\l=\dfrac{(2.7)^2\times 9.8}{4\times 3.14^2}\\\\l=1.8\ \text{feet}[/tex]
So, the length of the swing is 1.8 feet long.
Answer:5.4
Step-by-step explanation:
Related Questions
Hello how to work out this question
Answers
Answer:
angle x is 69. angle y is 69 as well
Step-by-step explanation:
pls help i’ll give brainliest
Answers
Answer:
94
Step-by-step explanation:
So
376= x + 3x
Where x is the hambugers and 3 x is cheeseburgers
so it is the same as
376= 4x
divide both sides by 4
x= 94
we can check by tripling x = 283 and adding the hamburgers we found to be 94 which gives us 376
Please help, no links
Answers
A rectangle always has equal corners
Can y’all help me?!
Answers
Answer:D
Step-by-step explanation:
3 is on the positive x side and 2 is on the negative y side so it will be (3,-2)
Which graph represents the compound inequality?
-3
-5 -4 -3 -2 -1 0 1
2
3 4
5
-5 4 -3 -2 -1 0 1
2 3 4 5
-5 4 -3 -2 -1 0 1
2
3
4
5
OG
-5 4 -3 -2 -1 0 1 2 3 4 5
Answers
Answer:
4th option
Step-by-step explanation:
open circle means more than or less than
n is more than -3 but less than 1
A and B are complementary to each other. If m∠A = 26° + x and m∠B = 38° + x, what is the value of x?
A.13°
B.14°
C.58°
D.18°
Please don't reply just for the points, I really need help understanding these things, if possible please leave me an explanation on how you got this. P.S Complementary angles add up to 90 degrees
Answers
Answer:
A. 13
Step-by-step explanation:
What we are given....
∠A = 26° + x ∠B = 38° + x∠A and ∠B are complementaryIf complementary angles add up to equal 90° and ∠A and ∠B are complementary to each other
Then 26 + x + 38 + x = 90
^ ( Note that we just created an equation that we can use to solve for x )
Now its just basic algebra
26 + x + 38 + x = 90
step 1 combine like terms
26 + 38 = 64
x + x = 2x
we now have 64 + 2x = 90
step 2 subtract 64 from each side
64 - 64 cancels out
90 - 64 = 26
we now have 26 = 2x
step 3 divide each side by 2
26 / 2 = 13
2x / 2 = x
we're left with x = 13
The value x form the given complementary angles is 13°.
Given that, m∠A = 26° + x and m∠B = 38° + x.
What are complementary angles?Two angles are said to be complementary angles if they add up to 90 degrees. In other words, when complementary angles are put together, they form a right angle (90 degrees).
Here, m∠A + m∠B =90°
⇒ 26° + x+38° + x =90°
⇒ 2x+64° =90°
⇒ 2x =90°-64°
⇒ 2x =26°
⇒ x = 13°
Therefore, the value x form the given complementary angles is 13°.
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You put $939 into an investment at 8% for 6 years. What will the balance be at the end of 6 years?
Answers
Answer:
At simple interest it will be 939+939×6×0.08=$1389.72.
Step-by-step explanation:
Express the polynomial as a product of linear factors.
f(x) = 2x3+ 4x2 – 2x - 4
Answers
Answer:
A. 2(x+2)(x+1)(x-1)
Step-by-step explanation:
^polynomial as a product of linear functions
29. For all values of X,
x^2+2x+4 = (x + 2)^2 + a(x+2) + b,
where a and b are constants. What is the value
of a?
(A) -2
(b) - 1
(c) 0
(d) 1
Answers
Equations of Exponential Functions
The table of values below represent an exponential function.
Write an exponential equation that models the data.
a. y = 18.2(1.7)× c. y = 26(0.7)×
b. y = 12.71(1.3)× d. y = 12.74(0.7)×
Please select the best answer from the choices provided
Answers
Y=12.74(.7)^x
If x is 0 and y is 12.74, Plug in 0 to x
Any number with an exponent of 0 will automatically be equal to 1, therefore 12.74 times 1 is 12.74 :)
The initial value where x=0, y is 12.74 and the exponential function is
y = 12.74(0.7)×.
Option D is correct.
What is Exponential Function?The formula f(x) = [tex]a^x[/tex] defines an exponential function, where x is the input variable as an exponent. The exponential curve is determined by the exponential function and the value of x.
The quantity drops rapidly at first, then slowly in Exponential Decay. The rate of change slows over time. As time passes, the rate of change slows.
We know the formula for an exponential function is
y= a [tex]b^x[/tex]
where a is initial value and b is growth factor.
Now, we have to find the growth factor as
We can observe from the table that the values of y decrease as x increases.
That is an example of an exponential decay function.
In an exponential decay function, the value of a growth/decay factor b is always smaller than 1.
Thus, the initial value a= 12.74 and growth factor b=0.7 that is less than 1.
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I WILL GIVE U BRAINLIEST AND THANKS AND 5 STARS
-------------------------------------------------------------------------------------
please help this is very important
Answers
Answer:
a, d, f
Step-by-step explanation:
3 - 3= 0
6 = 2(3)
3^2 = 9
Answer and Step-by-step explanation:
To find all equations where x = 3 is a solution, solve all equations for x and see if it is equal to 3.
A. x - 3 = 0
x = 3
B. 1 + x = 2
x = 1
C. 9 - x = 3
x = 6
D. 6 = 2x
x = 3
E. [tex]\frac{1}{5} x = 3[/tex]
x = 15
F. [tex]x^2 = 9[/tex]
x = 3
A, D, and F are the answers.
#teamtrees #PAW (Plant And Water)
Which function does not have a vertical asymptote
Answers
Answer:
[tex]y=\frac{5x}{1+2x^2}[/tex]
Step-by-step explanation:
[tex]Option ~A ~ does ~ not ~ have ~a ~ vertical~ asymptote[/tex]
--------------------------
Hope it helps...
Have a great day!!
Answer:
Step-by-step explanation:
answer is d
A sporting goods factory produced 13,234 tennis balls per month.How many tennis balls does it produce during 12 months?
Answers
Answer:
158,808 !
Step-by-step explanation:
13,234 × m (months)
13,234 × 12
= 158,808
I need to evaluate the limit and I also need to show the work for it. Please help me out if you can.
Answers
Answer:
-6
Step-by-step explanation:
You can solve all math problems via Photo math application, you can download it from the store for free, it is easy to write the question via the camera and quickly display the final result with the solution steps.
What is an equation of the line that passes through the points (-3, -1) and
(-6, 3)?
Answers
Answer:
y = -3/4x -1.5
Step-by-step explanation:
-6+3 = -3
3+1 = 4
-3/4
y = -3/4x +b
3 = -3/4(-6) +b
3 = 4.5 +b
b = -1.5
y = -3/4x -1.5
Answer:
y=-4 /3x– -5
Step-by-step explanation:
mrk me brainliest
PLEASE HELP!!!Design a chart, flow chart, mind map, or some other visual to help you organize the information that can easily be determined about the graph of a parabola when the function is written in vertex form, standard form, and factored form.
Answers
Answer:
Meh sure But I can't post a picture, so I'll just type it out.
Standard form: ax^2+bx+c
Quadratic Formula: -b + or - Square root of b^2-4ac/2a
Vertex form: a(x-h)+k
The number of paid days off (e.g., vacation, sick leave) taken by 9 employees at a small local business is compared to the national average. You are hired by the new business owner to help her determine whether her employees take less days off than the national average, which is determined to be 13 days. The data for the 9 local employees during the last fiscal year are: 10, 11, 8, 14, 13, 12, 12, 11, 13. What is the effect size for these data and how should it be interpreted
Answers
Answer:
-0.80, is a large effect
Step-by-step explanation:
From the given information:
The mean of the sample = [tex]\dfrac{10+ 11+ 8+ 14+ 13+ 12+12+11+13}{9}[/tex]
= 11.556
Using Excel Formula:
The standard deviation = 11.8105
We are told that the population mean = 13
Thus, the effect size can be determined by using the formula:
[tex]Effect \ size = \dfrac{sample\ mean \ ( \bar x) - population \ mean \ \mu }{standard deviation (\sigma)}[/tex]
[tex]Effect \ size = \dfrac{11.5556 -13 }{1.8105}[/tex]
Effect size = -0.80
Thus, -0.80, is a large effect
This line plot shows how many hours of homework twelve students have.
Answers
Answer:
A. 2 1/2 hoursStep-by-step explanation:
This is about the range of the data.
The student with the most homework spent 4 1/2 hours and the student with the least homework spent 2 hours.
The difference is:
4 1/2 - 2 = 2 1/2 hoursCorrect choice is A
Answer:
2 ¹/₂ hours
Step-by-step explanation:
From inspection of the given line plot:
Most number of hours of homework = 4 ¹/₂Least number of hours of homework = 2To find the difference between the most and least number of hours of homework, subtract the smaller number from the larger number:
[tex]\sf \implies 4 \frac{1}{2} - 2 = 2 \frac{1}{2}[/tex]
Therefore, the difference, in hours, between the student with the most homework and the student with the least homework is 2 ¹/₂ hours.
What is 1,207.43% times 83.53$
Answers
Answer:
1 008.56628 US$ kkkkkkkkkk
Answer:
$43352.9053
Step-by-step explanation:
Not sure if this is what you wanted to do, but 1,207.43% of 83.53 is 43352.9053, So there you go.
00:00
Which is greater: 10 centimeters or 103 millimeters? How much greater?
Answers
Answer:
103 is greater by .3
Step-by-step explanation:
103 mm equals 10.3 cm so it is greater by .3
Can someone please help asap need work to
Answers
In a 30-60 right triangle the side opposite the 30 degree angle is half the length of the hypotenuse.
so RT= 10
find all six trig ratios for the ordered pairs:
a. (2,-5)
b. (-9,-12)
Answers
Answer:
im nice at ping pong
Step-by-step explanation:
Joe earned 2,100$.He spent 1/5 on rent and 1/3 on food.How much money did he have left
Answers
Answer:
$980
Step-by-step explanation:
Step 1: Find [tex]\frac{1}{5}[/tex] of 2100 = 420
[tex]\frac{1}{5}\times \:2100[/tex]Convert 2100 to a fraction: [tex]\:2100=\frac{2100}{1}[/tex][tex]=\frac{1}{5}\times \frac{2100}{1}[/tex]Cross Divide[tex]2100 \div 5 = 420[/tex]Step 2: Find [tex]\frac{1}{3}[/tex] of 2100 = 700
[tex]\frac{1}{3}\times \:2100[/tex]Convert 2100 to a fraction: [tex]\:2100=\frac{2100}{1}[/tex][tex]=\frac{1}{3}\times \frac{2100}{1}[/tex]Cross Divide[tex]2100 \div 3 = 700[/tex]Step 3: Add both results together
[tex]420 + 700 = 1120[/tex]
Step 4: Subtract the result from how much joe earns ($2,100)
[tex]2100 - 1120 = 980[/tex]
Joe has $980 left
If Joe earned 2,100$ and He spent 1/5 on rent and 1/3 on food, Joe had $980 left after paying for rent and food.
Joe earned $2,100 and spent 1/5 of it on rent and 1/3 on food. To calculate the amount he spent on rent, we need to find 1/5 of $2,100, which is
(1/5) * $2,100 = $420.
Similarly, the amount he spent on food is found by calculating 1/3 of $2,100, which is (1/3) * $2,100 = $700.
To determine how much money Joe had left, we subtract the total amount he spent from his earnings. Adding the amounts spent on rent and food, we get $420 + $700 = $1,120.
To find the money Joe had left, we subtract the total spent from his earnings: $2,100 - $1,120 = $980.
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A roller coaster begins at ground level, rises 63 feet, then falls 71 feet. What is the
elevation of the roller coaster, relative to the ground? *
134 feet
8 feet
- 8 feet
- 134 feet
Answers
Answer:
-8 feet
Step-by-step explanation:
63 - 71 = -8
HELP PLS
I’m rly confused
Answers
bro use a photo math...................
Can a triangle have sides with the given lengths ? Explain . 1 ft , 2 ft , 4ft
Answers
Find the measure of m∠A (inside the triangle).
Find the measure of m∠B.
Find the measure of m∠C.
Answers
Answer:
85 degrees
Step-by-step explanation:
180=x+4x-20
180=5x-20
200=5x
x=40
C=2(40)+5
C=80+5
C=85
What is the surface area?
What is the surface area of E
Answers
Answer:
yes
Step-by-step explanation:
Answer:
412 (pls add the unit cuz i dont learn yd thx)
Step-by-step explanation:
13*12/2*4 + 10*10
= 312 + 100
= 412
you can use a calculator if you want. No links please help this is very important i will give you brain thing if its correct
Answers
Answer:
6a. 0.02623
b. 0.5692
Thank you :)
The number of students who enroll in a psychology course is a Poisson random variable with mean 105. The professor in charge of the course has decided that if the number enrolling is 119 or more, the course will be taught in two sections, whereas if fewer than 119 students enroll, the students will be all taught together in a single section. What is the probability that the professor will have to teach two sections?
Answers
Answer:
The answer is "0.096".
Step-by-step explanation:
In this question, the X is a number of the students who enroll in a psycholog y course, follows a Poisson distribution with mean [tex]= \lambda= 105[/tex]
[tex]\therefore P(X=x)=\frac{e^{-105} 105^{x}}{x!},(x=0,1,2,3.....)\\\\\to p(teach\ two \ sections) = P(X \geq 119)\\\\=1-P(X<119)\\\\=1-\sum_{x=0}^{118}P(X=x)\\\\=1-\sum_{x=0}^{118}\frac{e^{-105} 105^{x}}{x!}\\\\=0.0956747863537\\\\=0.096\\[/tex]