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 about the same amount of time, about 2.2 seconds. Use the pendulum formula below to find out how long the swing is. Round your answer to the tenths place. (equation and answers attached)
a) 10 ft
b) 25 ft
c) 6 ft
d) 3.9 ft
Answer:
3.9
Step-by-step explanation:
APEX
The set {0, 1} is closed under which operation? (Points : 3)
addition
multiplication
subtraction
none of the above
The set {0,1} is closed under both addition and multiplication, but not under subtraction. Closed means that any operation between any two elements in the set produces another element in the set.
Explanation:The set {0,1} is closed under both addition and multiplication. This means that if you perform either of these operations on any two numbers from the set, the result is a number that is also within the set.
For example if you add 0 and 1 (0+1), or multiply them (0*1), the result (1 and 0 respectively) is still within the set {0,1}. However, the set is not closed under subtraction, because 0-1 gives -1, which is not in the set.
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In january, wally's widget world had sales of $12,500 and expenses of $10,200. the profit for january was _____. 2,300 7,900 10,200 22,700
Answer:
Option A is correct.
the profit for January was $2,300
Step-by-step explanation:
As per the statement:
In January, wally's widget world had sales of $12,500 and expenses of $10,200
⇒wally's widget world had sales(S.P) = $12,00 and expenses = $10,200.
By using formula:
[tex]\text{Profit} = \text{Sales} - \text{Expenses}[/tex]
Substitute the given value we have;
[tex]\text{Profit} = 12500-10200 =\$ 2300[/tex]
Therefore, the profit for January was $2,300
How do i graph:
x – 3y = –12
2x – y = 1
...?
To graph the given linear equations, convert them to slope-intercept form and plot their y-intercepts and slopes on a graph to draw the lines representing each equation.
Explanation:To graph the equations:
x − 3y = − 12
2x − y = 1
You can use the following steps:
Rearrange each equation into slope-intercept form, y = mx + b, where m is the slope and b is the y-intercept.For the first equation, solve for y: y = (1/3)x + 4. For the second equation, y = 2x − 1.Plot the y-intercept of each line on the graph. For the first equation, the y-intercept is 4. For the second equation, the y-intercept is -1.Use the slope to determine another point on each line. For the first equation, from the y-intercept (0,4), go up 1 unit and right 3 units to plot another point. For the second equation, from the y-intercept (0,-1), go up 2 units and right 1 unit to plot another point.Draw a straight line through the points for each equation. These lines represent the equations on the graph.By following these steps, you will produce a graph with two lines, which could intersect at a point that represents the solution to the system of equations.
To graph the system of equations x - 3y = -12 and 2x - y = 1, convert each to slope-intercept form, plot the y-intercepts, use the slopes to determine another point for each line, and draw the lines through these points.
Explanation:To graph the system of equations given by x – 3y = –12 and 2x – y = 1, you need to follow these steps:
First, rearrange each equation into slope-intercept form, which is y = mx + b, where m is the slope and b is the y-intercept.For the first equation x – 3y = –12, solving for y gives us y = \frac{x}{3} + 4.For the second equation 2x – y = 1, solving for y gives us y = 2x – 1.Once the equations are in slope-intercept form, you can plot the y-intercept of each line on the y-axis, which are (0, 4) for the first equation and (0, –1) for the second equation.Then, use the slope to determine another point for each line. For the first line with a slope of \frac{1}{3}, you can move right 3 units and up 1 unit from the y-intercept. For the second line with a slope of 2, move right 1 unit and up 2 units.Draw lines through the points you have plotted for each equation. The point where the lines cross is the solution to the system of equations.With consistent practice, graphing systems of equations can become a more straightforward process.
Identify the missing symbol.
√31 ? √39
A. <
B. =
C. >
Andrea's family stopped at the gas station to get gas. At gas stations, the price of gas per gallon is given to the nearest thousandth. In order to determine how much money he would need to pay for the gas, Andrea's dad asked her to round the price of gas per gallon to the nearest hundredth. The gas price per gallon rounded to the nearest hundredth was $2.50. Which of the following prices could have been the original gas price?
-3.2 improper fraction
Timed! Plz help
Heather is solving an equation by graphing the expressions on both sides. If her graph intersects at an infinite number of points, which statement could describe the equation Heather is attempting to solve?
One side of the equation is a constant, and the other side of the equation is a linear expression.
One side of the equation is a linear expression, and the other side of the equation is a quadratic expression.
One side of the equation is a constant, and the other side of the equation is a quadratic expression.
One side of the equation is a quadratic expression, and the other side of the equation is a quadratic expression.
Statement D may apply to the problem Heather is seeking to answer if her graph connects at an unlimited number of locations.
What is the equation?A mathematical statement consisting of an equal symbol between two algebraic expressions with the same value is known as an equation.
One side of the equation is a quadratic expression, and the other side of the equation is a quadratic expression.
Since constants cannot intersect lines or parabolas in infinitely many points, and lines cannot intersect parabolas in more than two points,
Heather is solving an equation by graphing the expressions on both sides. If her graph intersects at an infinite number of points, Statement D could describe the equation Heather is attempting to solve.
By graphing the expressions on the two sides, Heather is resolving an equation. Statement D may apply to the problem Heather is seeking to answer if her graph connects at an unlimited number of locations.
Hence statement D is corect.
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solve for m : -3(m-2n)= 5m
-3(m-2n)=5m (distribute the negative 3)
-3m+6n=5m (add 3m to both sides)
6n= 8m (now divide by 8 to solve for m)
6n/8=m you can simplify
3/4n=m
Solve for x.
3(3x - 1) + 2(3 - x) = 0
Which ordered pairs are solutions to the inequality 2y−x≤−6 ?
Select each correct answer.
(−3,0)
(0,−3)
(2,−2)
(1,−4)
(6,1)
Answer:
The answers to this question is:
(2,-2), (0,-3), and (1,-4). I just took the test.
The ordered pairs (0,-3), (2,-2), and (1,-4) are solutions to the inequality 2y-x≤-6, while the pairs (-3,0) and (6,1) are not.
Explanation:To determine which ordered pairs are solutions to the inequality 2y−x≤−6, we can substitute the x and y values from each pair into the inequality and check if it holds true.
Therefore, the ordered pairs that are solutions to the inequality 2y−x≤−6 are (0,−3), (2,−2), and (1,−4).
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How many thirds are in 3 hours?
There are 9 thirds in 3 hours, since each hour is made up of 3 thirds.
Explanation:To find out how many thirds are in 3 hours, we consider that 1 hour is equal to 3 thirds (since 1 divided by 1/3 equals 3). Therefore, if 1 hour equals 3 thirds, then 3 hours would contain 3 times as many thirds. We calculate this as follows:
1 hour = 3 thirds
3 hours = 3 hours × 3 thirds/hour = 9 thirds
Thus, there are 9 thirds in 3 hours.
I need some help please. Write a function rule to describe each statement...
the cost in dollars of printing dollar bills when it costs 3.8cents to print a dollar bill.
the amount of money you earn mowing lawns at $15 per lawn.
the profit you make selling flowers at $1.50 each when each flower costs you $.80
If 8 pens cost 64p how much did 1 pen cost
Divide 4/5 by 2/3.
a. 8/15b. 5/6c. 1 1/5d. 1 7/8
Which expression uses the greatest common factor and distributive property to find 16+40?
2(8)+2(20)
4(4)+4(10)
8(2)+8(5)
16(1)+40(1)
You just obtained a credit card. You immediately purchase a digital camera for $160. Your credit limit is $4000. Let’s assume that you make no payments and purchase nothing more and there are no other fees. The monthly interest rate is 1.42%.
Answer:
answer is b
Step-by-step explanation:
The graph of a sinusoidal function intersects its midline at (0,5) and then has a maximum point at (\pi,6)
Write the formula of the function, where x is entered in radians.
f(x)=
The sinusoidal function described in the question is a cosine function that has been shifted vertically by 5 units. This can be written in the form f(x) = cos(x - π) + 5.
Explanation:In the given question, we are told that a sinusoidal function intersects its midline at (0,5) and has a maximum point at (π,6). Since the function reaches its maximum at π, it implies that this is a cosine function which shifted 5 units up on the y axis.
The general form for a cosine function is f(x) = A cos(Bx - C) + D, where: A is the amplitude of the wave, B determines the period of the wave, C is the phase shift, and D is the vertical shift. Given that we reach a maximum at (π,6), the amplitude is 1 (since it rises 1 unit above the midline). The vertical shift is 5, as the function crosses at (0,5).
Considering these factors and that the function hits a maximum (as opposed to a minimum) at x = π, we can say that the cosine's phase shift is π. Thus, the function does not need to be horizontally shifted. Therefore, the function is f(x) = cos(x - π) + 5.
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a line passes through the point (2, 3) and has a slope of -2. which is the equation of the line in point-slope form?
The equation of the line in point-slope form is y = -2x + 7.
To find the equation of the line passing through the point (2, 3) with a slope of -2, we can use the point-slope form of a linear equation:
[tex]\[y - y_1 = m(x - x_1)\][/tex]
where m is the slope and [tex]\((x_1, y_1)\)[/tex] is a point on the line.
Given that the point [tex]\((x_1, y_1)\)[/tex] is (2, 3) and the slope m is -2, we substitute these values into the point-slope form:
y - 3 = -2(x - 2)
Now, we can simplify the equation:
y - 3 = -2x + 4
Next, we can move the constant term to the other side:
y = -2x + 4 + 3
y = -2x + 7
So, the equation of the line in point-slope form is y = -2x + 7.
True or false? the length of time on the desk is a function of the temperature of the coffeewhich the longer coffee sits on a desk, the cooler it becomes
Which theorem or postulate justifies that angle HEF~angle HGE ?
A. AA similarity postulate
B. SAS similarity theorem
C. SSS similarity theorem
D. SSA similarity theorem
Answer:
Option A is correct.
AA similarity postulate justifies that [tex]\triangle HEF \sim \triangle HGE[/tex]
Step-by-step explanation:
The sum of the measures of a angles in a triangle add up to 180 degree.
In the triangle HGE:
[tex]\angle EHG+\angle EGH+\angle GEH = 180^{\circ}[/tex]
Substitute the given values;
[tex]90^{\circ}+37^{\circ}+\angle GEH = 180^{\circ}[/tex]
[tex]127^{\circ}+\angle GEH = 180^{\circ}[/tex]
Simplify:
[tex]\angle GEH = 180 -127 = 53^{\circ}[/tex]
In triangle HEF and triangle HGE
[tex]\angle FHE = \angle GHE = 90^{\circ}[/tex] [Angle]
[tex]\angle EFH = \angle GEH = 53^{\circ}[/tex] [Angle]
AA (Angle-Angle) similarity postulates states that two triangle are similar if they have two corresponding angles that are congruent or equal.
by AA similarity postulates;
[tex]\triangle HEF \sim \triangle HGE[/tex]
Every ten years, the bureau of the census counts the number of people living in the united states. in 1790, the population of the u.s. was 3.93 million. by 1800, this number had grown to 5.31 million.
Admira is painting a rectangular banner 2 1/4 yards wide on a wall in the cafeteria. The Banner will have a blue background. Admira has enough blue paint to cover 1 1/2 square yards of wall. Find the height of the banner if Admira uses all of the blue paint.
Captain John Smith earns $3,300 a month in the Air Force. If the Air Force puts 6% into his pension, how much goes into his pension monthly?
$19,800
$1,980
$198
$19.80
????
The answer would be 198.
What is the answer of 11-(-2) 14?
A semiconductor manufacturing company employs 1,000 people. The average weekly salary of each employee is $750.
Select the graph that correctly shows the total cost to the company of paying its employees during a year.
Answer:
Graph A is the correct choice.
Step-by-step explanation:
Let x be the number of weeks.
We have been given that a semiconductor manufacturing company employs 1,000 people. The average weekly salary of each employee is $750.
Let us find the weekly salary for 1000 employees by multiplying 1000 by $750.
[tex]\text{The weekly salary for 1,000 employees}=1,000\times \$750[/tex]
[tex]\text{The weekly salary for 1,000 employees}=\$750,000[/tex]
Let us find amount of salaries after 52 weeks as 1 year equals 52 weeks.
[tex]\text{The amount of salaries after 52 weeks for 1,000 employees}=52*\$750,000[/tex]
[tex]\text{The amount of salaries after 52 weeks for 1,000 employees}=\$39000000[/tex]
Since at week 0, the salaries for 1000 employees will be also 0, so point (0,0) will be on the line of our graph.
Now let see which of our given graphs has point (0,0) and (52,39000000).
We can see that graph A has y-value 39 million on x equals 52, therefore, Graph A is the correct choice.
what does x equal in 28 = -2-5x
In the early months of some year, one site added 0.2 million new accounts every day. at this rate, how many days would be needed to add 10million new accounts?
Answer:
50 days
Step-by-step explanation:
It's simple, we just have to express this as an equation.
x we will take it as the number of days we do not know.
so..
(0.2 M * x) = 10 M
we divide on both sides by 0.2 M.
x * 0.2 M / 0.2M = 10 M / 0.2 M
we simplify
x = 10M / 0.2 M
finally we only solve and the result of x will be the days it took.
x = 50
50 days
1.An object falls from rest on a high tower and takes 5.0 s to hit the ground. Calculate the object’s position from the top of the tower at 1.0 s intervals. Make a position-time graph for the object’s motion. In your response, show what you are given, the equation that you used, any algebra required, a table of data, and your graph.
g = 9.8 m/s2
Answer:
Position of ball from top of tower after 1 second is 4.9 m
Position of ball: [tex]y=-4.9t^2+122.5[/tex]
Step-by-step explanation:
An object falls from rest on a high tower and takes 5.0 s to hit the ground.
Initial speed, u = 0Height of tower, [tex]h_0[/tex]Acceleration due to gravity, [tex]g=9.8\ m/s^2[/tex]Let position of object from top of tower be y
Using formula, v =u - gt
[tex]v=0-9.8\times 5[/tex]
[tex]v=49\ m/s[/tex]
Speed of object when hit the ground.
Height of tower, H₀
[tex]H_0=\dfrac{49^2-0}{2\times 9.8}=122.5\ m[/tex]
Velocity of ball after 1 s
[tex]v=0-9.8\times 1[/tex]
[tex]v=-9.8\ m/s[/tex]
Using formula, [tex]s=\dfrac{v^2-u^2}{2g}[/tex]
[tex]y=\dfrac{9.8^2-0^2}{2\times 9.8}[/tex]
[tex]y=4.9\ m[/tex] From top of tower
Now find position of ball from top of tower.
[tex]y=-\dfrac{1}{2}\times 9.8\times t^2+122.5[/tex]
[tex]y=-4.9t^2+122.5[/tex]
Please find the attachment for graph.
5/16 = x/160 solve the proportion