The ratio 81:108 in the simplest form
The ratio 81:108 can be simplified to 9:13. To find the simplest form of the ratio, you can divide both numbers by the greatest common factor. The greatest common factor of 81 and 108 is 9, so you can divide both numbers by 9 to get the simplified ratio of 9:13.
[50 POINT QUESTION]
FInd the area of the trapezoids.
Answer:
7.5
Step-by-step explanation:
Take the figure apart to make one rectangle and 2 triangles.
the rectangle with the endpoint T has a width of 3 and a height of 1.
The Area for the rectangle is A = wl = 3 * 1 = 3
The first, smaller triangle with points R and A has a height of 3 and a base of 1.
The Area for the triangle is A = h b/2 = 3 * 1/2 = 1.5
The large triangle with points T and P has a height of 3 and a base of 2.
Using the same formula for the Area of a triangle you get 3
Now add all areas together
3+1.5+3 = 7.5
You earn $17.50/hr and work 40 hr/wk. Your deductions are FICA (7.65%), federal tax withholding (12.3%), and state tax withholding (6.2%). Your housing and fixed expenses are 30% of your realized income per month. You want to save 5 months' worth in an emergency fund within a year. How much do you need to save per month to fund the emergency fund, and how much discretionary money remains per month?
The amount that you need to save per month to fund the emergency fund would be $ 861. 58.
The discretionary money left per month would be $ 585. 88.
How to find the amount to save ?The gross income for the month :
= 17. 50 x 40 per week x 4 weeks a month
= $ 2, 800
The amount left which is realized funds for the month is:
= Gross income - FICA + Federal tax withholding + State tax withholding
= 2, 800 x ( 1 - 26. 15 %)
= $ 2, 067. 80
Five months of realized income for the emergency fund is:
= 2, 067. 80 x 5
= $ 10, 339
The amount to save per month is:
= 10, 339 / 12
= $ 861. 58
The amount left per month for discretionary expenses ;
= 2, 067. 80 - 861. 58 - 620. 24 rent
= $ 585. 88
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Convert to decimals.
A) 1/5
B) 120%
C) 0.2%
D) 4 8/5
Convert to percent.
A) 3/10
B) 1.4
C) 123.45
D) 2 4/5
Answer:
A) 1/5 = 0.2
B) 120% = 1.2
C) 0.2% = 0.002
D) 4 8/5 = 5.6
A) 3/10 = 30%
B) 1.4 = 140%
C) 123.45 = 12345%
D) 2 4/5 = 280%
Thanks! Have a great day studying!
Answer:
given below.
Step-by-step explanation:
A) 1/5 = 0.2
B) 120% = 1.2
C) 0.2% = 0.002
D) 4 8/5 = 5.6
Convert to percent.
A) 3/10 = 30%
B) 1.4 = 140%
C) 123.45 = 12345%
D) 2 4/5 = 280%
A boy is playing a ball in a garden surrounded by a wall 2.5 m high and kicks the ball vertically up from a height of 0.4 m with a speed of 14 m/s . For how long is the ball above the height of the wall.
Answer:
2.5 sec
Step-by-step explanation:
Height of wall = 2.5 m
initial speed of ball = 14 m/s
height from which ball is kicked = 0.4 m
we calculate the speed of the ball at the height that matches the wall first
height that matches wall = 2.5 - 0.4 = 2.1 m
using = + 2as
where a = acceleration due to gravity = -9.81 m/s^2 (negative in upwards movement)
= + 2(-9.81 x 2.1)
= 196 - 41.202
= 154.8
v = = 12.44 m/s
this is the velocity of the ball at exactly the point where the wall ends.
At the maximum height, the speed of the ball becomes zero
therefore,
u = 12.44 m/s
v = 0 m/s
a = -9.81 m/s^2
t = ?
using V = U + at
0 = 12.44 - 9.81t
-12.44 = -9.81
t = -12.44/-9.81
t = 1.27 s
the maximum height the ball reaches will be gotten with
= + 2as
a = -9.81 m/s^2
0 = + 2(-9.81s)
0 = 196 - 19.62s
s = -196/-19.62 = 9.99 m. This the maximum height reached by the ball.
height from maximum height to height of ball = 9.99 - 2.5 = 7.49 m
we calculate for the time taken for the ball to travel down this height
a = 9.81 m/s^2 (positive in downwards movement)
u = 0
s = 7.49 m
using s = ut + a
7.49 = (0 x t) + (9.81 x )
7.49 = 0 + 4.9
= 7.49/4.9 = 1.53
t = = 1.23 sec
Total time spent above wall = 1.27 s + 1.23 s = 2.5 sec
Please help this question is asking about the volume of a hemisphere and cylinder?
Answer:
pppppppppppppppppppppppppppppppppppppppppp
You want to test the effect that the amount of light has on growing bean plants. You have 20 plants and the ability to adjust the amount of light. Design an experiment to test what light has on bean plants. Include how you would randomly sort your plants into groups for your experiment.
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The experiment is to witness the effect that the amount of light has on growing bean plants has been described below.
What is an experiment?
To discover an unknown thing, the procedures which are needed to be performed is called experiment
The experiment is to witness the effect that the amount of light has on growing bean plants.
Given
1) Number of plants = 20
2) The ability to adjust the light
We know that if the amount of light is more, the metabolic rate of the plant will be more and the purification quality of the plant will be more.
Here, the independent variable is the light hour and the dependent variable is the photosynthetic rate.
So the hypothesis will be
More the amount of light, more will be the photosynthetic rate and the metabolic rate and this results in a higher purification rate.
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what is the property of 3x(5x7)=(3x5)7
The property you are referring to is called the associative property of multiplication. According to this property, when multiplying three numbers, the grouping of the numbers does not affect the result. In other words, you can change the grouping of the factors without changing the product.
In the equation you provided: 3x(5x7) = (3x5)7
The associative property allows us to group the factors in different ways without changing the result. So, whether we multiply 5 and 7 first, or multiply 3 and 5 first, the final product will be the same.
Gavin, Colin and Dan share some sweets in the ratio 7:3:2. Gavin gets 75 more sweets than Dan. How many sweets does Colin get?
Answer:
45 sweets.
Step-by-step explanation:
Gavin gets 7(7+3+2) = 7/12 of the sweets.
Dan gets 2 /12 so Gavin gets 7/2 times as much as Dan
Let Dan get x sweets then
x + 75 = 7x /2
7x/2 - x = 75
5x/2 = 75
x = 75 * 2/5 = 30 sweets.
So Dan gets 30 sweets , Gavin gets 105 sweets and Colin gets 3/2 * 30
= 45 sweets.
With your team, create a piecewise-defined function with at least three “pieces.” The function does not need to be a step-function with horizontal line segments, but it needs to meet the definition of a function. Make a table and a graph for your function, and write an equation for each part. Be sure to state the domain for each part, as well as the domain for the whole function.
On solving the provided question we can say that The following is the data table of the function.
what is function?The subject of mathematics includes quantities and their variations, equations and related structures, shapes and their locations, and places where they can be found. The term "function" refers to the relationship between a set of inputs, each of which has an associated output. A connection between inputs and outputs in which each input leads to a single, distinct result is known as a function. Each function is given a domain and a codomain, or scope. Usually, f is used to denote functions (x). input is an x. There are four main types of functions accessible. based on the following factors: on functions, one-to-one functions, many-to-one functions, inside functions, and on functions.
here,
the provided functions that can be formed are
x -infinity < x < -10
f(x) = 2x + 10 -10 < x < 10
4X - 10 10 < x < infinty
The following is the data table of the function.
x y
-20 -20
-15 -15
-10 -10
-5 0
0 10
5 20
10 30
15 50
20 70
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An example of the piecewise defined function is: \(f(x)= \begin{cases}x & -\infty < x \leq-10 \\ 2 x+10 & -10 < x \leq 10 \\ 4 x-10 & 10 < x < \infty\end{cases}\)
what is function?The subject of mathematics includes quantities and their variations, equations and related structures, shapes and their locations, and places where they can be found. The term "function" refers to the relationship between a set of inputs, each of which has an associated output.
A connection between inputs and outputs in which each input leads to a single, distinct result is known as a function. Each function is given a domain and a codomain, or range.
Usually, f is used to denote functions (x). input is an x. There are four main types of functions accessible. based on the following factors: on functions, one-to-one functions, many-to-one functions, inside functions, and on functions.
The following is the data table of the function.
x y
-20 -20
-15 -15
-10 -10
-5 0
0 10
5 20
10 30
15 50
20 70
The provided functions that can be formed are
\(f(x)= \begin{cases}x & -\infty < x \leq-10 \\ 2 x+10 & -10 < x \leq 10 \\ 4 x-10 & 10 < x < \infty\end{cases}\)
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Find the surface area of a cylinder with a height of 8 and a base radius of 5 m.
Use the value 3.14 for, and do not do any rounding.
Be sure to include the correct unit.
Using the height and radius given, the surface area of the cylinder is 408.2m²
What is surface area of a cylinder?The surface area of a cylinder is the combined area of its curved surface (lateral surface) and its two circular bases. The formula for the surface area of a cylinder is:
A = 2πrh + 2πr²
where:
A is the surface area of the cylinder,π is the mathematical constant r is the radius of the base of the cylinder, andh is the height (or length) of the cylinder.In the given question, the data are;
h = 8mr = 5mSubstituting the value into the formula
A = 2π(5 * 8) + 2π(5)²
A = 408.2m²
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In the diagram a || b. Use the diagram to answer the question. Name the alternate interior angle to <2
The angle 7 is the alternative interior angle to angle 2.
Given that,In the diagram a || bWe need to find the alternate interior angle to <2 .Alternate interior angles are the angles that are formed when a transversal crosses two parallel lines.
They are the angles that are on opposite sides of the transversal and inside the two parallel lines.
Thus, in the given diagram, the angle that is opposite to angle <2 and is inside the two parallel lines a and b is the alternate interior angle to angle <2.
We can see that the alternate interior angle to angle <2 is <7. Therefore, the alternate interior angle to angle <2 is <7.
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Help me on this question please
Answer:
the first one:)))
Step-by-step explanation:
8 soccer cards and 4 baseball cards in one box, 6 soccer cards and 3 baseball cards in another box
HELPPPP!!!!!! SUPER EASY!!
1. 0.4(x−0.45.)=9.2 2. −4(p−121)=44
1. X=18.5
2.X= -131
1. if u expand the equation it will be 0.4x-1.80=9.2
0.4x=9.2-1.80
0.4x/0.4=7.40/0.4
X=18.5
Help please ASAP!!!!!!
Answer:
0 <x<3
Step-by-step explanation:
I hope this helps. Have a blessed day.
Q1
0.06 million = 6.2 thousand =
Give your answer to two de
Number Number Concepts Date Talking math.. 1. Count the objects. Write the numeral and the number word for each. Write how you got your answer. the group with the greatest number. L Circle a) b) c) Coccinere Steteater Catattato 1. PU Ci 3.a) b
The numerals and the number words for each items listed in the above picture is as follows:
a.)4(10): That is four multiplied by 10.
b.) 5(10): That is five multiplied by 10
C.) 7(5) + 1 : That is seven multiplied by five plus 1.
What are numerals and number word?Numerals are used in arithmetics as a form of figures, symbols or group of figures or symbols that represents a a number.
Number word is defined as the representation of numbers in an alphabetical form such as four, five, six and seven.
The numerals and the number words for each items listed in the above picture is as follows:
4(10): That is four multiplied by 10.
5(10): That is five multiplied by 10
7(5) + 1 : That is seven multiplied by five plus 1.
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The wind is blowing N 35.0 degrees W at 1.60 * 10^2 mph. A plane has an engine speed of 3.20 * 10^2 mph. Where should the pilot point the plane in order to fly straight W?
Answer: 24.2° SouthWest
Step-by-step explanation:
First step: DRAW A PICTURE of the vectors from head to tail (see image)
I created a perpendicular from the resultant vector to the vertex of the given vectors so I could use Pythagorean Theorem to find the length of the perpendicular. Then I used that value to find the angle of the plane.
Perpendicular (x):
cos 35° = adjacent/hypotenuse
cos 35° = x/160
→ x = 160 cos 35°
Angle (θ):
sin θ = opposite/hypotenuse
sin θ = x/320
sin θ = 160 cos 35°/320
θ = arcsin (160 cos 35°/320)
θ = 24.2°
Direction is down (south) and left (west)
The blue dot is what value on the number line -6 -10
Answer:
I have no clue what I could answer that question with other than (-6,-10)
Can anyone help me with this?
a. The approximate value of the y-intercept is
b. The approximate value of the slope is
c. The expected number of cones of ice cream when the temperature is 30°C is 90°C.
How to determine the y-intercept and slope of this line?In Mathematics and Geometry, the point-slope form of a straight line can be calculated by using the following mathematical equation (formula):
y - y₁ = m(x - x₁)
Where:
x and y represent the data points.m represent the slope.First of all, we would determine the slope of this line;
Slope (m) = (y₂ - y₁)/(x₂ - x₁)
Slope (m) = (100 - 60)/(45 - 5)
Slope (m) = 40/40
Slope (m) = 1
At data point (5, 60) and a slope of 1, a linear equation for this line can be calculated by using the point-slope form as follows:
y - y₁ = m(x - x₁)
y - 60 = 1(x - 5)
y = x - 5 + 65
y = x + 60
Part a.
Based on the equation above, the y-intercept is equal to 60.
Part b.
Based on the equation above, the slope is equal to 1.
Part c.
In this scenario, the expected number of cones of ice cream when the temperature is 30°C;
y = x + 60
y = 30 + 60
y = 90°C.
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The relationship between the Fahrenheit (F) and Celsius (C) temperature scales is given by the linear function F = 9/5 C + 32.
given function F = 9/5 C + 32
if slope = 9/5 then The slope means that F increases ___ degrees for each increase of 1°C.
The slope of the linear equation F = 9/5 C + 32 is 9/5. This means that for every increase of 1 degree Celsius, the Fahrenheit temperature increases by 9/5 degrees.
Therefore, the slope can be interpreted as "F increases 9/5 degrees for each increase of 1°C."
The conversion formulae we employ are the same ones found in most textbooks. Subtract 32 from the temperature in degrees Fahrenheit and multiply by.5556 (or 5/9). To convert Celsius temperatures to Fahrenheit, multiply by 1.8 (or 9/5) and add 32.
The greater the number assigned to the temperature in fahrenheit, the hotter it is, and the lower, the colder it is.
As the originator of the thermometer as we know it, Fahrenheit had to put something on them to distinguish between different temperatures. The scale he chose became known as the Fahrenheit scale. Fahrenheit set zero to the lowest temperature he could get using a water and salt combination.
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3x+4=5x-6 solve for x
60 cars to 20 cars indenify percent of change
Answer: -66.67%, but if the answer is supposed to positive then the answer is 66.67%.
* Hopefully this helps:)
A line with a slope of 4 passes through the point (2, 1). What is the equation of this line?
Step-by-step explanation:
y - y1 = m(x - x1)
y - 1 = 4(x - 2)
y = 4x - 8 + 1
y = 4x - 7
The equation of this line is y = 4x - 7
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Determine whether the given binomial is a factor of the polynomial following it. If it is a factor, then factor the polynomial completely.
x+2, x³+4x²-4x-16
Answer:
x+2 is a factory = (x +4)(x +2)(x -2)Step-by-step explanation:
You want the complete factorization of x³ +4x² -4x -16.
Factor by pairsPairing terms of the given polynomial, we have ...
(x³ +4x²) -(4x +16)
Factoring each pair gives ...
x²(x +4) -4(x +4)
= (x² -4)(x +4)
Difference of squaresThe factorization of x² -4 is found using the form for factoring the difference of squares:
a² -b² = (a +b)(a -b)
x² -4 = (x +2)(x -2)
Note that x+2 is a factor here.
Complete factorizationThe complete factorization of the given polynomial is ...
x³ +4x² -4x -16 = (x +4)(x +2)(x -2)
This is confirmed by the graph, which shows zeros at x = -4, -2, 2.
What information could you find with following situation? Noemy bought a box of apples for $4.20. She now has $2.35 in her purse.
Answer:
she originaly had $6.55
Step-by-step explanation:
4.20+2.35=6.55
Answer:
u can know that Noemy bought a box of apples for $4.20. You also know that she has $2.35 in her purse after buying the box of apples.
Find the radius of a circle that has an area of 121 pi f2
Answer: r=11
Step-by-step explanation:
A=πr^2
A=121π
121π=πr^2
r^2=121
r=11
Convert: 11,000 feet = miles and feet
Factor tree for 14 i reeaallyy
Answer:
I need points lol well I kinda have no idea what ur taking abt
Answer:
the calculator i used was called calculator soup this is a website all u gotta do is search up factor calculator and it will pop up this website always helps if u want u can search up what u calculator u want at the top where it says search
An analyst has developed the following probability distribution for the rate of return for a common stock.
Scenario Probability Rate of Return
10 0.34 -19%
20 0.48 8%
30 0.18 26%
a. Calculate the expected rate of return. Round your answer to 2 decimal places.
b. Calculate the variance and the standard deviation of this probability distribution. Use the percentage values for your calculations (for example 10% not 0.10). Round intermediate calculations to 4 decimal places.
Answer:
a) 2.06
b) variance = 270.90 , std = 275.14
Step-by-step explanation:
a) Determine Expected rate of return
attached below is the calculated table for the solution provided
∴ Expected rate of return = ∑ Xp(x) = -6.46 + 3.84 + 4.68 = 2.06
b) Determine the variance and standard deviation
Variance ( Vx ) = E(x)^2 - [ Expected rate of return ]^2
= 275.14 - ( 2.06 )^2 ≈ 270.90
standard deviation = √ variance = √270.90 = 16.459
note : E(x)^2 = ∑ x^2 p(x) = 275.14