About 13 out of 100 people are left handed. How many people would you expect to be left handed out of 1500?
Answers
195 out of 1500 would be left handed
Related Questions
Guys, I’m back from nearly a year later went on hiatus on The Brainly because of myself as an anxiety and a very stressful year with A.D.H.D., and I really need help from my own schoolwork from my own school about, “A Perimeter Of The Composite Figures” with only 2 more perimeter questions left to go as soon as possible before it’s too late, please! :O
Please read it as soon as possible before answering to 2 of my own perimeter questions and thank you guys. :)
There’s only 55 points for you to answer to my own 2 of my own perimeter questions, guys! :D
Well good luck, guys! :D
Answers
Answer:
2. 26.2 m
3. 117.2 cm
Step-by-step explanation:
You want the perimeters of two figures involving that are a composite of parts of circles and parts of rectangles.
2. Semicircular archThe circumference of a circle is given by ...
C = πd . . . . . where d is the diameter
The length of the semicircle of diameter 12.6 m will be ...
1/2C = 1/2(π)(12.6 m) = 6.3π m ≈ 19.8 m
The two lighted sides of the rectangle have a total length of ...
3.2 m + 3.2 m = 6.4 m
The length of the light string is the sum of these values:
19.8 m + 6.4 m = 26.2 m
The length of the string of lights is about 26.2 meters.
3. Fan shapeThe perimeter of the figure is the sum of four quarter-circles of radius 11.4 cm, and 4 straight edges of length 11.4 cm.
Four quarter-circles total one full circle in length, so we can use the formula for the circumference of a circle:
C = 2πr
C = 2π·(11.4 cm) = 22.8π cm ≈ 71.6 cm
The four straight sides total ...
4 × 11.4 cm = 45.6 cm
The perimeter of the figure is the sum of the lengths of the curved sides and the straight sides:
71.6 cm + 45.6 cm = 117.2 cm
The design has a perimeter of about 117.2 cm.
__
Additional comment
The bottom 12.6 m edge in the figure of problem 2 is part of the perimeter of the shape, but is not included in the length of the light string.
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What is the present value of a cash inflow of 1250 four years from now if the required rate of return is 8% (Rounded to 2 decimal places)?
a. 992.50
b. 938.75
c. 918.79
d. 835.75
Answers
The present value of a cash inflow of 1250 four years from now, given a required rate of return of 8%, is 918.79, rounded to 2 decimal places. Therefore, option (c) is the correct answer.
To find the present value of a future cash inflow, we need to discount the future value by a factor that takes into account the time value of money, or the opportunity cost of waiting for the money.
This factor is determined by the required rate of return, which is the minimum rate of return that an investor expects to earn on an investment with a similar level of risk.
In this case, we have a cash inflow of 1250 that will be received four years from now, and a required rate of return of 8%. To find the present value, we can use the formula for the present value of a single cash flow:
PV = FV / (1 + r)^n
where PV is the present value, FV is the future value, r is the required rate of return, and n is the number of years.
Plugging in the values, we get:
PV = 1250 / (1 + 0.08)^4
PV = 918.79
Therefore option (c) is the correct answer.
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PLEASE HELP!! THIS IS MY LAST QUESTION FOR THE WEEK!!WILL GIVE BRAIN!!!
Answers
Helpppp plzzzzzzzzz plzzzzzzzzz
Answers
-4,-9/4, 1/2,s.r. 5, 3.7
please help with this question
Answers
The required equivalent pairs are C and D which we gοt by sοlving the expressiοn fοrmed.
What are Expressiοns?Mathematical expressiοns cοnsist οf at least twο numbers οr variables, at least οne math prοcedure, and a sentence. It's pοssible tο multiply, divide, add, οr subtract with this mathematical prοcedure. An expressiοn's fοrm is as fοllοws: Expressiοn: (Math Operatοr, Number/Variable, Math Operatοr)
Accοrding tο questiοn:
We have given fοllοwing expressiοn, check which οf the fοllοwing are equivalent.
A) \(12^{(1/7)\)and \((\sqrt{12)^{7\)
Here \(12^{(1/7)\) and \((\sqrt{12)}^{7\) are nοt equal.
B) \((\sqrt[3]{125} )^7\)and (125)^(3/7)
Here 125^(7/2) and \(125^{(3/7)\) are nοt equal
c) \(8^{(9/2)\) and \((\sqrt8)^9\)
Here \(8^{(9/2)\) and \((\sqrt8)^9\)bοth are equal.
D) \(4^{(5/2)\) and \((\sqrt4)^5\)
Here \(4^{(5/2)\) and \((\sqrt4)^5\) are equal.
Thus, required equivalent pairs are C and D.
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Segments AB and BC are both tangent to the circle shown above. What is the value of x? *Note: photo not necessarily to scale
Answers
In right triangle OAB and right triangle OCB above.
\(OA=OC\)Therefore,
\(\begin{gathered} m\angle OAB=m\angle OCB=90^0 \\ Then, \\ OB=OB \end{gathered}\)Hence,
\(\begin{gathered} Rt\Delta OAB\cong Rt\Delta OCB \\ \therefore AB=CB \end{gathered}\)Then,
\(\begin{gathered} x^2+3=12 \\ x^2=12-3=9 \\ x^2=9 \\ x=\sqrt{9}=3 \end{gathered}\)Hence,
\(x=3\)
LESSON 18 SESSION 4
7 Tell whether each statement is True or False.
a. 80% of 90 is the same as of 90.
b. 45% of 60 is 27.
c. 20% of 90 is the same as
as
d. 25 is 35% of 80.
of 90.
of
True False
о
O
о
O
L
Answers
a. 80% of 90 is the same as of 90 - False
b. 45% of 60 is 27 - True
c. 20% of 90 is the same as as of 90- True
d. 25 is 35% of 80 -False
What are the statement about?a. 80% of 90 is not the same as 90. To find 80% of 90, we multiply 90 by 0.8, which gives us 72. Therefore, the statement is false.
b. To find 45% of 60, we multiply 60 by 0.45, which gives us 27. Therefore, the statement is true.
c. 20% of 90 is the same as of 90. To find 20% of 90, we multiply 90 by 0.2, which gives us 18. Therefore, the statement is true.
Lastly, for question d. 25 is not 35% of 80. To find 35% of 80, we multiply 80 by 0.35, which gives us 28. Therefore, the statement is false.
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tom worked for 80 min how long did tom work
Answers
Answer:
80 minutes
Step-by-step explanation:
Answer:
Tom worked for 1 hour and 20 minutes.
Step-by-step explanation:
PLS HELP:( !! What is an equation of the line
that is perpendicular to the line
y= -2/3x-1 and passes through
the point (-4, 2)?
Answers
Answer:
\(y = \frac{3}{2} x + 8\)
Step-by-step explanation:
The given equation is written in the form of y=mx+c (where m is the gradient and c is the y-intercept).
Thus, gradient of given equation= -⅔
The products of the gradient of perpendicular lines is -1.
(Gradient of line)(-⅔)= -1
Gradient of line
\( = - 1 \div ( - \frac{2}{3} ) \\ = \frac{3}{2} \)
Hence, m= \( \frac{3}{2} \).
Subst. m= \( \frac{3}{2} \)into the equation:
\(y = \frac{3}{2} x + c\)
To find the value of c, substitute a pair of coordinates into the equation:
When x= -4, y= 2,
\(2 = \frac{3}{2} ( - 4) + c \\ 2 = - 6 + c \\ c = 2 + 6 \\ c = 8\)
Thus, the equation of the line is \(y = \frac{3}{2} x + 8\).
Work out the surface of the solid cuboid.
8m
6m
2m
The diagram is not drawn to scale
Answers
Answer:
8 * 6 * 2 = 96
Step-by-step explanation:
It's a multiplication problem. 8 * 6 = 48 * 2 = 96
The rectangular prism is 96m.
Statement 1: a figure is a polygon offend, only if all of its sides are in a line segments
Statement 2: I figure is not a polygon, if, and only, if not all of it sides are line segments.
Answers
The inverse of a biconditional statement is not equivalent to the original statement. The inverse statement may have a different meaning or convey a different condition.
The inverse of a biconditional statement involves negating both the "if" and the "only if" parts of the statement. In this case, the inverse of the biconditional statement would be:Inverse of Statement 1: A figure is not a polygon if and only if not all of its sides are line segments.
Now, let's analyze the relationship between Statement 2 and its inverse.
Statement 2: A figure is not a polygon if and only if not all of its sides are line segments.
Inverse of Statement 2: A figure is not a polygon if and only if all of its sides are line segments.
The inverse of Statement 2 is not equivalent to Statement 1. In fact, the inverse of Statement 2 is a different statement altogether. It states that a figure is not a polygon if and only if all of its sides are line segments. This means that if all of the sides of a figure are line segments, then it is not considered a polygon.
In contrast, Statement 1 states that a figure is a polygon if and only if all of its sides are line segments. It affirms the condition for a figure to be considered a polygon, stating that if all of its sides are line segments, then it is indeed a polygon.
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what is the eccentricity of an infinitely long ellipse?
Answers
Less than 1 is the eccentricity of an infinitely long ellipse.
The ratio of the focus's distance from the ellipse's centre and the ellipse's distance from one of its ends is called the eccentricity of an ellipse.
It is easy to understand how circular an ellipse is in relation to a circle when we assume its eccentricity. It also estimates the ovalness of the ellipse, and eccentricity close to 1 directs to the high degree of ovalness.
The eccentricity of an ellipse is always < 1, i.e. e < 1. The formula of the eccentricity of an ellipse is as follows:
Eccentricity = Distance from Focus/Distance from Directrix
Which can be written as
=> e = c/a.
Where
e = Eccentricity of the ellipse
c = Distance of the focus from the centre of the ellipse
a = Distance of the endpoint of an ellipse from its centre
As we know, the eccentricity of an ellipse is always less than 1, So we can conclude that the eccentricity of an infinitely long ellipse is less than 1.
Therefore, less than 1 is the eccentricity of an infinitely long ellipse.
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How would you describe the relationship between the real zero(s) and x-intercept(s) of the
function f(x) =
3x(x-1)
x²(x+3)(x+1)
When you set the function equal to zero, the solution is x = 1; therefore, the graph has an x-intercept of (1, 0).
O When you set the function equal to zero, the solutions are x = 0 or x = 1; therefore, the graph has x-intercepts at
(0, 0) and (1, 0).
O When you substitute x = 0 into the function, there is no solution; therefore, the graph will not have any x-intercepts.
O Since there are asymptotes at x = -3, x=-1, and x = 0, the graph has no x-intercepts and, therefore, no real
zeros.
Answers
The description of the relationship between the real zero(s) and x-intercept(s) of the function should be option A.
What is function?
A function in mathematics from a set X to a set Y allocates precisely one element of Y to each element of X. The sets X and Y are collectively referred to as the function's domain and codomain, respectively.
Relationship between the real zero(s) and x-intercept(s) of the function:
Since it is given that
f(x) = 3x(x - 1)
x2(x+3)(x + 1)
Also, the function should be set out and equivalent to zero when x = 1
and, the graph should have an x-intercept of (1,0).
Therefore, the option A is correct.
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Answer:A
Step-by-step explanation:
edge 2023
Translate this phrase into an algebraic expression, Nine more than the quotient of a number and 7 is 6
Answers
Answer:
x/7 + 9 = 6
Step-by-step explanation:
Hope this helps! Please give brainliest!
A roller coaster train with 6 passenger cars and the front decoration has a mass of 3,500kg. When the train has the front decoration and only 4 passenger cars, it has a mass of 2,400kg, What is the mass of the decoration and of each passenger car?
Answers
The mass of each passenger car is 550 kg and the mass of the decoration is 200 kg
How to determine the masses?From the question, we have the following parameters that can be used in our computation:
6 passenger cars and the front decoration = 3,500kg4 passenger cars and the front decoration = 2,400kgThese can be represented as
(6, 3500) and (4, 2400)
The slope of the above points represent the mass of each passenger car
This is calculated as
Slope = Difference in mass/Difference in number of cars
So, we have
Slope = (3500 - 2400)/(6 - 4)
Evaluate
Slope = 550
When there are no passenger cars in the train, we have
(0, Mass of decoration)
Using the slope formula, we have
Slope = (Mass of decoration - 3500)/(0 - 6)
So, we have
Slope = (Mass of decoration - 3500)/(-6)
This gives
(Mass of decoration - 3500)/(-6) = 550
Cross multiply
Mass of decoration - 3500 = -3300
Add 3500 to both sides
Mass of decoration = 200
Hence, the mass of decoration is 200 kg
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a bag contains 3 green blocks for every 8 yellow and 6 yellow blocks for every 10 red. if there are 18 green blocks, how many red blocks are in the bag?
Answers
Answer:
60?
Step-by-step explanation:
what point shows a local maximum ?
Answers
Is the answer
Between 20 and 16
The relationship between a distance in yards (y) and the same distance in miles (m) is described by the equation
y = 1,760m.
Find measurements in yards and miles for distances by filling in the table.
distance measured in miles 1 5 type your answer type your answer
distance measured in yards
type your answer type your answer 3,520 17,600
Answers
The equation for constant proportionality is y ∝ m .
1760 is a constant of proportionality.
What is meant by constant of proportionality?The ratio of two proportional values at a constant value is the proportionality constant. When either the ratio or the product of two variables results in a constant, the connection between the two is proportional. The ratio between the two stated quantities affects the proportionality constant's value.
The formula y = 1760m describes the relationship between a distance in yards (y) and a similar value in miles (m).
As a result, the graph of the aforementioned equation will be a straight line with a constant slope of 1760 that passes through the origin (0, 0).
As a result, a measurement in yards and a measurement in miles have the same proportionality relationship.
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The diagram shows a triangle.
What is the value of w?
Answers
Answer:
The value of w is 63°.
Step-by-step explanation:
All the sides of triangle sum up to 180°.
so
w+71+46=180
or w+117=180
or w=180-117
=63
I will give you brainliest if you solve the math question
Answers
Answer:
x=60
y=30
Step-by-step explanation:
Answer:
y=30
x=60
Step-by-step explanation:
Laurie has a signed contract with I- Mobile where she will pay a $25 fee each month plus $2 per phone call.
Answers
The equation represents the total cost for one month as y= 25 + 2x.In January she did 15 calls. In March, she owes $35.The graph of the function has been drawn below.
How to form an equation?Determine the known quantities and designate the unknown quantity as a variable while trying to set up or construct a linear equation to fit a real-world application.
In other words, an equation is a set of variables that are constrained through a situation or case.
A)
Total cost = fixed cost + 2 x number of calls
y = 25 + 2x
B)
In January y = 55
55 = 25 + 2x
x = 15
C)
In march x = 5
y = 25 + 2 x 5 = 35
D) The graph has been drawn below.
Hence "The equation represents the total cost for one month as y= 25 + 2x.In January she did 15 calls. In March, she owes $35.The graph of the function has been drawn below".
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2(5y + 2) = 14
help help help help
Answers
Answer:
y = 1
Step-by-step explanation:
Apply the distributive property
10y + 4 = 14
Subtract to isolate the variable.
10y = 10
Divide both sides by the variable term.
y = 1
~theLocoCoco
Use the distributive property to write the following expression in an equivalent form: (12•5) + (12•10)
Answers
Answer:
180
Step-by-step explanation:
60+12×10
60+120
180
Harriet and Maya share £300 in the ratio of 7:5. Wirk out how much money harriet gets
Answers
Answer:
$175
Step-by-step explanation:
you need to specify if harriet got the 7 portion or the 5 portion. I'll answer as if she got the 7 portion.
They split it into 12 portions because the ratio is 7:5 and 7+5=12. So do $300/12=25
Assuming Maya got the 5 portion, do $25 x 5 = $125, so Maya got $125.
Assuming Harriet got the 7 portion, do $25 x 7 = $175, so Harriet got $175.
Solve the following proportion for x 7/8=x/9 round Your Answer to the nearest tenth
Answers
The value of the x is 7.9
What is proportion?
Two ratios are set to be equal in an equation called a proportion.
Given, \(\frac{7}{8} = \frac{x}{9}\)
or, 8x = 9*7
or, 8x = 63
or, x = 63/8
or, x = 7.875 = 7.9 (rounded to the nearest tenth)
Therefore, the required value of x is 7.9
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What are all of the real roots of the following polynomial f(X)=x5+3x4+5x3+15x2+4x+12
Answers
Answer:
See below.
Step-by-step explanation:
f(X) =x5+3x4+5x3+15x2+4x+12
=x5+12+15+30+4x+12
=(x5+4x)+(12+15+30+12)
=9x+69
convert 1.3333....... into P/Q form
Answers
Answer:
\(\frac{4}{3}\)
Step-by-step explanation:
We require to create 2 equations with the repeating value placed after the decimal point.
let
x = 1.3333... → (1) ( multiply both sides by 10 )
10x = 13.3333... → (2)
Subtract (1) from (2), eliminating the repeating decimal
9x = 12 ( divide both sides by 9 )
x = \(\frac{12}{9}\) = \(\frac{4}{3}\)
101
Which expression can be rewritten as (x+7)(x - 1)?
(x+3)² - 10(x+ 3) - 2(x + 3) + 20
A.
B.
C.
D.
(x - 1)(x² - 6x-7)
(x + 1)
(x+3)²-16
(x+7)(x² + 4x + 3)
(x+3)
Answers
The expression which can be rewritten as (x+7)(x - 1) as required in the task content is; Choice C; (x+3)²-16.
Identifying the equivalent expression.It follows from the task content that the expression which can be rewritten as ( x + 7 ) ( x - 1 ) be determined.
By polynomial expansion, the expression (x+7)(x - 1) can be written as;
x² + 7x - x - 7
= x² + 6x - 7.
By observation, it follows that the expression which seems to have a degree of 2 is; (x + 3)² - 16.
On this note, by checking; we have;
x² + 6x + 9 - 16
= x² + 6x - 7
Ultimately, the expression which could be rewritten as (x+7)(x - 1) and is to be identified is; Choice C; (x + 3)² - 16.
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Write an equivalent integral with the given order of integration ∫20∫4−x2√0∫4−x2√0F(x,y,z)dzdydx=∫ba∫g(z)f(z)∫k(x,z)h(x,z)F(x,y,z)dydxdz a= b= f(z)= g(z)= h(x,z)= k(x,z)=
Answers
To convert the given order of integration to the desired order, we start by writing down the limits of integration for each variable in the new order. We have:
a = 0, b = 2
g(z) = 0, f(z) = √(4 - z^2)
k(x,z) = -√(4 - z^2) , h(x,z) = √(4 - x^2 - z^2)
Now, we can write the equivalent integral in the new order of integration:
∫ba∫g(z)f(z)∫k(x,z)h(x,z)F(x,y,z)dydxdz = ∫0^2 ∫0^√(4-z^2) ∫-√(4-z^2)^(√(4-x^2-z^2)) F(x,y,z) dydxdz
Note that the integrand F(x,y,z) is not dependent on y, so we can simplify the integral with respect to y to get:
∫ba∫g(z)f(z)∫k(x,z)h(x,z)F(x,y,z)dydxdz = ∫0^2 ∫0^√(4-z^2) ∫-√(4-z^2)^√(4-x^2-z^2) F(x,z) dxdz
This is the equivalent integral with the desired order of integration.
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Options:
52 m
21.8 cm
26 m
97 m
Answers
The length of AB which is a diameter of the circle is equal 52 m using the Pythagoras rule.
What is the Pythagoras rule?The Pythagoras rule states that in a right-angled triangle, the square of the hypotenuse is equal to the sum of the squares of the other two sides.
The hypotenuse of the right triangle ADC is a radius and twice the length of the radius is that of the diameter so;
radius = √(10² + 24²)
radius = √(100 + 576)
radius = √676
radius = 26
diameter AB = 2 × 26 = 52m
Therefore, the length of AB which is a diameter of the circle is equal 52 m using the Pythagoras rule.
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