Answer:
8 feet = L
Step-by-step explanation:
The period T(in seconds) of a pendulum is given by T=2 pi root L over 32
T= 2π√(L/32)
where the L stands for Length(in feet) of the pendulum.
If π= 3.14, and the period is 3.14 seconds
Length will be
T= 2π√(L/32)
3.14= 2*(3.14)√(L/32)
(3.14/3.14)/2= √(L/32)
(1/2)²= L/32
1/4 = L/32
32/4= L
8 feet = L
Suppose that participants who adhere to a particular weight loss program lose an average of 1.5 lbs per week. Write a population regression model that describes how participants' mean current weight changes with time x1 (in weeks) and starting weight x2 (in pounds).
Answer:
y = x₂ - 1.5 × x₁.
Step-by-step explanation:
Regression model is a technique of analysis in which a variable known as dependent variables and another variables known as the independent variables are analyzed to determine their relationship.
So, from the question given above we have that; "Suppose that participants who adhere to a particular weight loss program lose an average of 1.5 lbs per week".
Also, we are given that time = x1 (in weeks) and weight = x2 (in pounds). Therefore the regression equation is given as below;
y = x₂ - 1.5 × x₁.
What is the slope of the line with points (1, 2) and (4, 2)?
Answer:
0
Step-by-step explanation:
To find the slope of two points, here is the formula (y2-y1)/(x2-x1)
So we have (1,2) and (4,2),
We let y2 = 2 and y1 = 2 and we let x2 = 4 and x1 = 1
So, (2-2)/(4-1) = 0/3
Our slope is 0.
WILL GIVE BRAINIEST THANKS AND 5 STARS FOR CORRECT ANSWER What number am I? I have 3 digits. My first digit is twice the size of my second digit. My second digit is twice the size of my third digit. If you add my digits together, the sum is 14.
Answer:
First digit is 8, second digit is 4, and third digit is 2.
Step-by-step explanation:
What is the value of a in the function's equation?
A. -2
B. -3
C. 3
D. 2
The value of a in the function's equation is 3
What is equation function?A function is an equation that has only one answer for y for every x. A function assigns exactly one output to each input of a specified type
What is parabola?A parabola is a plane curve which is mirror-symmetrical and is approximately U-shaped. It fits several superficially different mathematical descriptions,
equation of parabola is :
[tex]y= a (x-h)^{2} + k[/tex]
where ,
h= horizontal coordinate of graph
k = vertical coordinate of graph
a = the value of the coefficient
According to the question
horizontal coordinate of graph = -2
vertical coordinate of graph = 2
[tex]y= a (x-h)^{2} + k[/tex]
[tex]y= a (x+2)^{2} + 2[/tex]
now we will take one point from x and y value from the graph to take out value of coefficient a
from graph (x,y) = (-1,5)
[tex]5= a (-1+2)^{2} + 2[/tex]
[tex]\\3= a (-1+2)^{2}[/tex]
[tex]\\3= a (1)^{2}[/tex]
[tex]a = 3[/tex]
Hence, the value of a in the function's equation is 3
To know more about equation function and parabola here :
https://brainly.com/question/26227783
# SPJ2
Janice published a novel. Last month the book sold 1307 copies, earning Janice a total of $1408.4. This month the book sold 1409 copies. How much should Janice expect to receive in royalties this month?
Answer:
$1518.31
Step-by-step explanation:
Books sold = 1307
Earning from 1307 copies = $1408.4
Earning from one copy:
1408.4/1307Earning from 1409 copies expected:
1409*1408.4/1307 ≈ 1518.31Will mark brainliest who answers fastest and right
Answer: 330 people
Step-by-step explanation:
added them all up
We buy these products for $50.00 and then sell them for $67.00. That means that our price markup is?
That means our price markup is $67.00-$50.00=$17.00
The markup price is 34%.
It is given that cost price of the products is $ 50 and selling price of the product is $ 67.
To find the markup price.
What is Profit and loss?The profit and loss statement is a financial statement that summarizes the revenues, costs, and expenses incurred during a specified period.
Thus, the markup in the price = [tex]\frac{S.P-C.P}{C.P} *100[/tex]
=[tex]\frac{67-50}{50} *100[/tex]
= 34[tex]%[/tex]%
So, the markup price is 34%.
Learn more about Profit and loss here:
https://brainly.com/question/17252870
#SPJ5
Great Rapids White Water Rafting Company rents rafts for $125 per hour. Explain why the point (0,0) and (1,125) are on the graph of the relationship and what these points mean in the context of the problem. How much would you pay for 12 hours? How long have you rented the rafts if you spent $750?
Answer:
$1500
6 hours
Step-by-step explanation:
There is no one off fee, therefore we got (0,0) a starting point.
(1,125) is representing the first hour of rent, so 1 hour rent costs $125.
There is a direct relationship between the time and rental fee.
As a function is will be:
f(x) = 125x, where f(x) is the total amount and x is the time in hoursFor x= 12, we get:
f(12) = 125*12= $1500So, if f(x) = 750, then:
750 = 125x x= 750/125 x= 6 hoursIt is never possible for the theoretical and experimental probabilities to be the same. T or F
Answer:
False
Step-by-step explanation:
Right on Odyssey
It is never possible for the theoretical and experimental probabilities to be the same which is false.
What is probability?Its fundamental concept is that someone will nearly surely occur. The proportion of positive events in comparison to the total of occurrences.
Then the probability is given as,
P = (Favorable event) / (Total event)
Theoretical and experimental probability can be the same in some circumstances.
For example, the theoretical and experimental chance of rolling a fair six-sided dice and receiving a 3 is 1/6. However, the theoretical and experimental probabilities will differ in many other cases due to factors such as sampling error or differences between the idealized model and the real-world situation.
Thus, the statement is false.
More about the probability link is given below.
https://brainly.com/question/795909
#SPJ3
a cold front came in today and the temperature dropped 30 degrees. Write an algebraic expression to explain the new temperature.
Answer:
The algebraic equation describing the above
X+y= x-30
Step-by-step explanation:
The initial temperature of the environment= x degrees
Temperature of the front= y degrees
the environment dropped 30 degrees, means loosed 30 degrees.
The final temperature f the environment= x-30
The algebraic equation describing the above
X+y= x-30
The vertical position y (in feet) of a rock t seconds after it was dropped from a cliff is given by the formula y equals short dash 16 t squared plus 4 t plus 380. The base of the cliff corresponds to y equals 0. After how many seconds will the rock hit the ground at the base of the cliff?
Answer: t = 4.87s
Step-by-step explanation: The vertical position y is given by
[tex]y = -16t^{2}+380[/tex]
If y at the base of the cliff equals 0, then equation is
[tex]-16t^{2}+380=0[/tex]
[tex]-16t^{2}=-380[/tex]
[tex]t^{2}=\frac{-380}{-16}[/tex]
[tex]t=\sqrt{\frac{380}{16}}[/tex]
[tex]t=\sqrt{23.75}[/tex]
t = 4.87
Since it is time we want, the negative value of the square root can be ignored. So, at the base of the cliff, the rock will hit the ground after 4.87 seconds.
On a coordinate plane, a triangle has points (negative 5, 1), (2, 1), (2, negative 1).
Use the drop downs to answer the following questions about the distance between the points (−5, 1) and (2, −1).
What is the distance of the horizontal leg?
What is the distance of the vertical leg?
Use the Pythagorean theorem. What is the distance between the two points?
On a coordinate plane, a triangle has points (negative 5, 1), (2, 1), (2, negative 1).
Use the drop downs to answer the following questions about the distance between the points (−5, 1) and (2, −1).
What is the distance of the horizontal leg?
What is the distance of the vertical leg?
Use the Pythagorean theorem. What is the distance between the two points?
Answer:
Step-by-step explanation:
Given a triangle has points:
(-5,1),(2,1), (2,-1)
Let us label the points:
A(2,1),
B(-5,1) and
C(2,-1)
To find:
Distance between (−5, 1) and (2, −1) i.e. BC.
Horizontal leg AB and
Vertical leg, AC.
Solution:
Please refer to the attached diagram for the labeling of the points on xy coordinate plane.
We can simply use Distance formula here, to find the distance between two coordinates.
Distance formula :
[tex]D = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]
For BC:
[tex]x_2 = 2\\x_1 = -5\\y_2 = -1\\y_1 = 1[/tex]
[tex]BC = \sqrt{(2--5)^2+(-1-1)^2} = \sqrt{63}[/tex]
Horizontal leg, AC:
[tex]x_2 = -5\\x_1 = 2\\y_2 = 1\\y_1 = 1[/tex]
[tex]AC = \sqrt{(2-(-5))^2+(1-1)^2} = 7[/tex]
Vertical Leg, AB:
[tex]x_2 = 2\\x_1 = 2\\y_2 = -1\\y_1 = 1[/tex]
[tex]AB = \sqrt{(2-2)^2+(-1-1)^2} = 2[/tex]
Answer:
The answer are 7, 2 and 53
Step-by-step explanation:
The table shows the relationship between the number of calories Raquel burns while hiking and the number of minutes she hikes.
How many calories will Raquel burn in 1 minute while hiking?
Answer:
5 calories.
Step-by-step explanation:
We begin by calculating the rate at which Raquel burns calories while hiking.
This can be obtained as follow:
Calories burned = 225 calories
Time = 45 mins
Rate =?
In this case, the Rate is simply defined as calories per unit time. Mathematically, it is expressed as:
Rate = Calorie/time
With the above formula, we can obtain the rate at which Raquel burns calories as follow:
Calories burned = 225 calories
Time = 45 mins
Rate =?
Rate = Calorie/time
Rate = 225/45
Rate = 5 cal/min
Therefore, Raquel burns Calories at a rate of 5 cal/min.
Now, we shall determine the calories burned by Raquel in 1 minutes. This is illustrated below:
Rate = 5 cal/min
Time= 1 min
Calorie =.?
Rate = Calorie /time
5 = Calorie /1
Cross multiply
Calorie = 5 x 1
Calorie = 5
Therefore, Raquel burns 5 calories in 1 minute while hiking.
Evaluate 8/13 divided by 2/3
Answer:
24/26
Step-by-step explanation:
8/13 divided by 2/3 is the same as:
8/13 times 3/2
8X3= 24
13X2= 26
answer = 24/26
Answer:
12 / 13
Step-by-step explanation:
8 / 13 ÷ 2 / 3 ------ just flip 2/3 to --->> 3/2 then multiply
8 / 13 x 3 / 2 = (8 * 3) / (13 * 2)
= 24 / 26
therefore,
= 12 / 13 is the answer
Solve for x
3/4x = -9
-12 is the answer
Step-by-step explanation:
[tex] \frac{3x}{4} = - 9[/tex]
Firstly we have to take 4 to the R.H.S and multiply -9 with 4
[tex]3x = - 9 \times 4 [/tex]
[tex]3x = - 36[/tex]
Now, take 3 to R.H.S and divide 3 by -36
[tex]x = \frac{ - 36}{ \: \: 3} [/tex]
so after solving this we get our answer,
[tex]x = - 12[/tex]
Hope it helps u
u= 2a - 2. solve for a
Answer: a = [tex]\frac{u+2}{2}[/tex]
We want to isolate a. Add both sides by 2. Then we get u + 2 = 2a. To get just a, we can divide by 2 to get (u+2)/2.
Hope that helped,
-sirswagger21
Hey there! I'm happy to help!
We want to get a on one side of the equation all on its own.
Let's flip the equation around so a ends up on the left. Usually variables are supposed to be on the left.
2a-2=u
We add 2 to both sides.
2a=u+2
We divide both sides by 2.
a=(u+2)/2
We divide both u and 2 by 2 so our answer is completely simplified.
a=1/2u+1.
I hope that this helps! Have a wonderful day! :D
PLZZZZZ HELP
A median of a triangle is a line or segment that passes through a vertex and
bisects the side ______ the vertex.
A. congruent to
B. opposite
C. adjacent to
D. below
What two nonnegative real numbers with a sum of 23 have the largest possible product?
The two number with the largest product would be the two numbers closest together.
Divide 23 in half:
23/2 = 11.5
Use the whole numbers on each side of 11.5, so you have 11 + 12 = 23
Multiply: 11x 12 = 132
What is 25+543\43 squared
Answer:
i think the answer is 0.3071
Step-by-step explanation:
But I might be wrong
123567543 what is the value of 3
Answer:
3 would be 3 million
Step-by-step explanation:
What is the sum of the interior angles of a regular polygon with 13 sides
Answer:
Regular Polygons
Sides - Name - Interior Angles
13 - Triskaidecagon - 152.31°
14 - Tetrakaidecagon. - 154.29°
15 - Pendedecagon. - 156.00°
16 - Hexdecagon - 157.50°
I added some more incase u need it....
Hope it helped u if yes mark me BRAINLIEST I!
Tysm!
:)
Points are usually paved as
Answer:
To score good marks because 1 marks can give us good life in future
Lines AB and CD are parallel. If the measure of angle W equals 124 degrees, what is the measure of angle X?
Answer:
56 degrees
Step-by-step explanation:
They are supplementary, so they add to 180. 180 - 124 = 56.
Answer:
56 degrees
Step-by-step explanation:
They are supplementary, so they add to 180. 180 - 124 = 56.
Use the given confidence interval limits to find the point estimate p^ and the margin of error E. 0.325
Answer:
0.350
Step-by-step explanation:
Confidence interval = point estimate ± margin of error
Point estimate = Confidence interval - margin of error
To get the margin of error, we will take the average of the difference of the interval given. Given the confidence interval 0.325<p<0.375
Margin of error = 0.375-0.325/2
Margin of error = 0.050/2
Margin of error = 0.025
Using the interval of 0.375
Point estimate = 0.375 - 0.025
Point estimate = 0.350
I will mark you as brainliest please answer with way and dont send anything useless thing if you are not answering you can send answer with way by sending image of the answer.
Answer:
24
Step-by-step explanation:
There are two triangles PQR, each with area base*half heigth = 6*2 = 12, and two times 12 is 24.
Answer:
12 cm ^2 of a single triangle
Step-by-step explanation:
area of triangle= 1/2 (l×b)
= 1/2 (4cm × 6cm)
= 1/2 (24cm^2)
= 24/2 cm^2
= 12 cm^2
and the area of both these triangle will be 24cm^2
(2x3)over 2-5 over 2
Answer:
2x3/2-5/2
=6/-3/2
=-1
6 divide by 2 is +3 and +3 divide by - 3 equals - 1
A detergent company periodically tests its products for variations in the fill weight. To do this, the company uses x-bar and R charts. Eight samples, each containing 10 detergent boxes, were selected from different batches. The data in fill weight (in ounces) of the eight samples is presented below.
Sample Sample Mean Sample Range
1 5.8 0.42
2 6.1 0.38
3 16.02 0.08
4 15.95 0.15
5 16.12 0.42
6 6.18 0.23
7 5.87 0.36
8 16.2 0.4
If A2 for the sample size is 0.3080, the lower controllimit for the x-bar chart is___________
Answer:
10.9361
Step-by-step explanation:
The lower control limit for xbar chart is
xdoublebar-A2(Rbar)
We are given that A2=0.308.
xdoublebar=sumxbar/k
Rbar=sumR/k
xbar R
5.8 0.42
6.1 0.38
16.02 0.08
15.95 0.15
16.12 0.42
6.18 0.23
5.87 0.36
16.2 0.4
Xdoublebar=(5.8+6.1+16.02+15.95+16.12+6.18+5.87+16.2)/8
Xdoublebar=88.24/8
Xdoublebar=11.03
Rbar=(0.42+0.38+0.08+0.15+0.42+0.23+0.36+0.4)/8
Rbar=2.44/8
Rbar=0.305
The lower control limit for the x-bar chart is
LCL=xdoublebar-A2(Rbar)
LCL=11.03-0.308*0.305
LCL=11.03-0.0939
LCL=10.9361
Please Help! Best gets Brainlest
Answer:
A. g=11
Step-by-step explanation:
We want to find which choice makes the equation true. Let's plug in each answer choice.
A. g=11
26=7(11-9)+12
26= 7(2)+12 Solve inside the parentheses.
26= 14+12 Multiply 7 and 2.
26= 26 Add 14 and 12.
This answer must be correct, but let's check the other choices .
B. g=12
26=7(12-9)+12
26= 7(3)+12 Solve inside the parentheses.
26= 21+12 Multiply 7 and 3.
26≠33 Add 14 and 12.
This choice is not correct.
C. g= 13
26=7(13-9)+12
26= 7(4)+12 Solve inside the parentheses.
26= 28+12 Multiply 7 and 4.
26≠40 Add 28 and 12.
This is also not correct.
D. g= 14
26=7(14-9)+12
26= 7(5)+12 Solve inside the parentheses.
26= 35+12 Multiply 7 and 5.
26≠47 Add 35 and 12.
This choice is not correct either.
The value of g that make the expression 26=7(g-9)+12 a true statement is A. g=11.
HELP ASAP ROCKY!!! will get branliest.
Answer:
Graph B
Step-by-step explanation:
In a negative linear association between x and y, we are looking for a graph that:
A. Doesn't curve - is completely straight
B. Decreases in y as x increases (because slope is rise over run)
We know that graphs C and D are eliminated because they aren't linear.
We can also tell that graph A is eliminated because it shows a positive association.
So Graph B is all that's left.
Hope this helped!
Answer:
Graph B
Step-by-step explanation:
A negative linear equation has a straight line that goes down, making B the answer.
Please help!! Attachment below
Answer:
hamburger =282 calories
soda=212 calories
Step-by-step explanation:
2h+5c=1624 ...............×3
3h+2c=1270 ................×2
use eliminate method: multiply the first equation by 3, and second one by 2 to eliminate h first:
6h+15c= 4872
6h+4c=2540
subtract the two equations
6h+15c-6h-4c=4872-2540
11c=2332
c=2332/11
c=212 calories in soda
substitute c in any equation to get h
2h+5c=1624
2h+5(212)=1624
2h=1624-1060
2h=564
h=564/2=282
h=282 calories
check :
2(282)+5(212)=
564+1060=1624
3h+2c=1270
3(282)+2(212)=1270