The area of a circle with a circumference of 60cm is 286. 38cm²
How to determine the area of the circleThe formula for calculating the circumference of a circle is expressed as;
Circumference = 2 πr
Where;
π has the value pie in decimal form is = 3. 14 and in fraction form is 22/7r is the radius of a circleNow, let's put and substitute the value of circumference of the circle as 60cm in the formula
We have;
60 = 2 πr
Interchange the value for π as 3.14, we have;
60 = 2× 3.14r
Multiply the values
60 = 6.28r
Make 'r' the subject of formula by dividing both sides by the coefficient of the variable 'r'
r = 60/6.28
Find the quotient
r = 9.55cm
But we have that the formula for area of a circle is expressed as;
Area = πr²
Substitute or put the value of radius into the formula
Area = 3. 14(9.55)²
Determine the square of the value
Area = 3.14(91. 20)
Find the product
Area = 286. 38cm²
Thus, the area is 286. 38cm²
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1. Using the numbers 8, 6, 4, and 2, write an expression that equals 6.
Answer:
4+2=6
8-2=6
You can use any one of these
On Gabriela’s first birthday, her parents gave her a $50 savings account. On every birthday after that her parents added to the account, increasing the amount they deposited by $25 each year. Complete the recursive definition for the sequence that represents this situation by finding the values for a1 and d.
We will see that the first term is $50, and the common difference is $25, then the recursive formula is:
aₙ = aₙ₋₁ + $25.
How to get the recursive formula?Here we will have something like an arithmetic sequence, such that the recursive sequence is something like:
aₙ = aₙ₋₁ + d
Where d is the common difference.
We know that the first value (the first amount that she has in her savings account) is $50, so we can write the first term as:
a₁ = $50
Now, each new year (the subindex "n" represents the number of the year) $25 are added to that savings account, then we will have:
a₂ = $50 + $25 = $75
a₃ = $50 + $25 + $25 = $100
And so on..
So the common difference is d = $25, then the recursive relation is:
aₙ = aₙ₋₁ + $25.
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The sales tax in your city is 4.4\%4.4%4, point, 4, percent, and an item costs \$3$3dollar sign, 3 before tax.
How much tax would you pay on that item?
Round to the nearest hundredth or cent.
If the sales tax in your city is 4.4% and an item costs $3 before tax the amount of tax you would pay on that item is $0.132.
Sales taxSales tax is the tax amount that is charge on goods customers buys.
Using this formula to determine the sales tax
Sales tax = Sales tax percentage × Cost of item
Where:
Sales tax percentage = 4.4% or 0.044
Cost of item = $3
Let plug in the formula so as to find the sales tax
Sales tax = 0.044 × $3
Sales tax = $0.132
Therefore the sales tax amount is $0.132.
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3 4 + 2 . 5 = (input whole numbers only)
Numerical answers expected
Answer:
37 is the correct answer
Which set may be the lengths of the sides of an isosceles triangle?
[tex]\quad \huge \quad \quad \boxed{ \tt \:Answer }[/tex]
[tex]\qquad \tt \rightarrow \: Correct \:\: Choice\:\: D[/tex]
____________________________________
[tex] \large \tt Solution \: : [/tex]
For being the sides of an Isosceles triangle, the measure of two sides should be equal. and it should also fulfil the criteria of being a triangle.
i.e sum of either two sodes shouldn't exceed the third one, and difference between any two sides shouldn't be smaller than the third side.
So, keeping that in mind, the only option that satisfy the criterias is :
D. 4, 4, 6
As it has two equal sides measuring 4 each, and it fulfils the criteria of being a triangle too.
Answered by : ❝ AǫᴜᴀWɪᴢ ❞
Answer:
Step-by-step explanation:
very much so impossible math that i need help wit
For triangle UTV reflection across y = 1 would be,
U' = (0, 2)
T' = (-3, 3)
V' = (-1, 5)
And for triangle HIJ the reflection across y = -2 would be,
H' = (-5, 1)
I' = (-3, -3)
J' = (-2, -1)
1)
In this question, we have been given a triangle UTV.
We need to find the the coordinates of the triangle if it is reflected across the line y = 1
Coordinates of UTV are:
U = (1, 2)
T = (-3, -1)
V = (-1, -3)
If we take the reflection across line y = 1 then,
U(1, 2) --> U'(0, 2)
T(-3, -1) --> T'(-3, 3)
V(-1,-3) --> V'(-1, 5)
2)
In this question, we have been given a triangle HIJ.
We need to find the the coordinates of the triangle if it is reflected across the line y = -2
Coordinates of HIJ are:
H = (-5, -5)
I = (-3, -1)
J = (-2, -3)
If we take the reflection across line y = -2 then
H(-5, -5) --> H'(-5, 1)
I(-3, -1) --> I'(-3, -3)
J(-2, -3) --> J'(-2, -1)
Therefore, for triangle UTV reflection across y = 1 would be,
U' = (0, 2)
T' = (-3, 3)
V' = (-1, 5)
And for triangle HIJ the reflection across y = -2 would be,
H' = (-5, 1)
I' = (-3, -3)
J' = (-2, -1)
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Simplify the expression. Write the answer in scientific notation.
(5x10^-3) (7×10^-2)
(5x10^-3) (7x10^-2)=0
(Simplify your answer. Use scientific notation. Use the multiplication symbol in the math palette as needed.)
The result of the expression (5x[tex]10^{-3}[/tex]) (7×[tex]10^{-2}[/tex]) in scientific notation is 35×[tex]10^{-5}[/tex].
What is scientific notation?
Scientific notation is a way of writing very large or very small numbers. A number is written in scientific notation when a number between 1 and 10 is multiplied by a power of 10. For example, 650,000,000 can be written in scientific notation as 6.5 ✕ [tex]10^{8}[/tex].
The expression in scientific notation is
(5x[tex]10^{-3}[/tex]) (7×[tex]10^{-2}[/tex]) = 5×7 × [tex]10^{-3-2}[/tex]
= 35 × [tex]10^{-5}[/tex]
Therefore, the result of the expression (5x[tex]10^{-3}[/tex]) (7×[tex]10^{-2}[/tex]) in scientific notation is 35×[tex]10^{-5}[/tex].
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identify the independent variable and the dependent variable. a cabinet shop wants to determine the effect of adhesive brands on the bonding of veneer to cabinets. the independent variable is . the dependent variable is
The dependent variable is "Bonding of veneer to cabinets" and the independent variable is "a cabinet shop".
What is a Dependent variable?In mathematical modeling, statistical modeling, and experimental sciences, there are dependent and independent variables. Dependent variables get their name because, during an experiment, their values are investigated under the presumption or requirement that they are dependent on the values of other variables due to some law or rule. A test score, for instance, could be a dependent variable because it could vary based on a number of variables, including how much you studied, how much sleep you got the night before the test, and even how hungry you were.So, in the given sentence, the dependent variable is "Bonding of veneer to cabinets" and the independent variable is "a cabinet shop".
Therefore, the dependent variable is "Bonding of veneer to cabinets" and the independent variable is "a cabinet shop".
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Simplify the expression:
3s + -9s - s + −4s + −s
Submit
Answer:
s=0
Step-by-step explanation:
1. Simplify the expression
[tex]3\mathrm{s}-9\mathrm{s}-1\mathrm{s}-4\mathrm{s}-1\mathrm{s}=0[/tex]
2. Simplify the arithmetic
[tex]-12\mathrm{s}=0[/tex]
Answer: I believe the answer is 3s + -13
Step-by-step explanation:
3s + -9s - s + -4s + -s
3s + -9 + -4
3s + -13
Help fast please hurry
I beleive it would be D
One batch of mooncakes contains 1/4 tablespoons of kansui. How many tablespoons of kansui are
needed to make 1 3/5 batches of mooncakes?
From the division property, the required kansui is 5/32 tablespoon.
What is division?
One of the four fundamental arithmetic operations, or the process by which two or more numbers are added together to create a new number, is division. Multiplication, addition, and subtraction round out the list of operations.
Given that a batch of mooncake contains 1/4 tablespoon of kansui.
Given batch of mooncake is 1 3/5 = 8/5
Therefore,
[tex]\frac{\frac{1}{4}}{\frac{8}{5}}\\=\frac{1}{4} \times \frac{5}{8}\\=\frac{5}{32}[/tex]
Hence, the required kansui is 5/32 tablespoon.
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Tom is in charge of the track and field games at his school. He was given two boxes of prizes. He has given out 7/5 boxes. He estimates he will give out another 4/5 box. Does he have enough? If he does not have enough, how much more does he need?
Answer:
he needs 0.2 more
Step-by-step explanation:
2-7/5=0.6 that means he still has 0.6 left of the boxes.
minus the 4/5= -0.2
so Tom needs 0.2 more to give out that amount.
Answer:
11/10
he needs one more
Step-by-step explanation:
Nth term question picture attached
The nth term in the sequence is 30 and the sequence becomes like this: 0, 2, 6, 12, 20, 30
What is a sequence?A sequence is an enumerated group of objects in mathematics where repetitions are permitted and order is important. It has members, just like a set does. The length of the sequence is determined by the number of elements. Sequence (countable and uncountable, plural sequences) (countable and uncountable, plural sequences) A series is a group of items arranged in a row next to one another. (Uncountable) The act of following or being successive; succession.So, the n term that comes next in the sequence is:
The sequence is: 0, 2, 6, 12, 20We can notice the hidden sequence, that is:
0 + 0 = 00 + 2 = 22 + 4 = 66 + 6 = 1212 + 8 = 2020 + 10 = 30Therefore, the nth term in the sequence is 30 and the sequence becomes like this: 0, 2, 6, 12, 20, 30
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B. Between which two consecutive integers does the square root lie?
Answer:
The square root of what number?
hello so i got stuck on this problem thanks to whoever answers this!!!
The machine can make 25 soda bottles each minute.
What is the slope of a graph?The ratio between the change in the values of the y variables and the change in the values of the x variables is known as the slope. It shows how much the y-value changes for every unit change in the x-value.
Given:
The graph shows a relationship between the time and the number of soda bottles a machine can make.
Points are (3,75) and (7,175).
We have to calculate the number of soda bottles the machine can make each minute i.e. rate of the machine.
To determine the rate of the machine which is equal to the slope of the graph,
[tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex] = [tex]\frac{175-75}{7-3}[/tex] = [tex]\frac{100}{4} =25[/tex]
Therefore, the machine can make 25 soda bottles each minute.
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Janie is designing a flyer for her business. she needs twice the width of the flier to be within 4 inches of 20 inches. complete the sentence to identify the minimum and maximum width of the flier.
Using proportions, it is found that:
The minimum width of the flier is of 8 inches. The maximum width of the flier is of 12 inches.What is a proportion?A proportion is a fraction of a total amount, and equations can be built to find the desired measures using operations such as multiplication and division to find the unknown variables.
In the context of this problem, we have that:
Twice the width of the flier is of 2w.Measures within 4 inches of 20 inches are measures between 16 inches and 24 inches.Hence the minimum width of the flier is found as follows:
2w = 16
w = 16/2
w = 8 inches.
The maximum width of the flier is found as follows:
2w = 24
w = 24/2
w = 12 inches.
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The length of a colorado brook trout is normally distribute. what is the probability that a brook trout's length exceeds the mean? (round your answer to 2 decimal places.) the likelihood of a value greater than the mean is .50 because the whole area under the curve is 1 and the mean is the midway point.
The probability that a brook trout's length exceeds the mean is 0.50.
How to find the probability in normal distribution?One of the benefits of normal distributions is that we can find probabilities without being given the parameters of the distribution. This is achieved provided that we know the number of standard deviations from the mean the value of the random variable that delimits the indicated interval is.
We are given;
Distribution of length of a Colorado brook trout; Normal Distribution
Now, we want to find the likelihood of a value greater than the mean is 0.50.
We also know that if it is seen that the shape of the data is almost like a bell shape, then the data will be considered to have a normal distribution.
Thus, by the property of a normal distribution, the probability is 0.50.
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A 30cm 40cm page of a book includes a 2cm margin on each side, as shown. What percentage of the page is occupied by the margins
If a (30cm by 40cm) page of a book includes a 2cm margin on each side, then the margins occupy 11.67 percentage of the total surface area of one side of the pages.
As per the question statement, a (30cm by 40cm) page of a book includes a 2cm margin on each side.
We are required to calculate the percentage of the total surface area of one side of the pages, occupied by the margins.
To solve this question, first we will need to calculate the total surface area of one side of the pages, and also the surface area occupied by the margins on one side, and then simply, calculate the percentage amount between the two area values.
Since the dimensions of the pages of the book are (30cm by 40cm), therefore, area of one side of each page = (30 * 40) sq. cm.
= 1200 sq. cm.
And, area occupied by the margins on each side of the page
= [(2 * 30) + (2 * 40)] sq. cm.
= (60 + 80) sq. cm.
= 140 sq. cm.
Therefore, percentage of the total surface area of one side of the pages, occupied by the margins = [(140/1200) * 100] = 11.67%
Percentage: In mathematics, a Percentage is a number or a ratio, expressed as a fraction of 100 and often denoted using the percent sign, "%".To learn more about Percentage, click on the link below.
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9 + 3x = 2x + 4y
What's x and what's y? I'll give the Brainly thingy for a right answer, Scout's honor
I'm not a scout but ykwim
Answer:
There are probably multiple answers to this question, but the answer I got was x = 7, and y = 4.
Step-by-step explanation:
First Equation: 9 + 3x. (Below)
3 x 7 = 21
21 + 9 = 30
Second equation: 2x + 4y.
2 x 7 = 14
4x4 = 16
16 + 14 = 30.
———————
Since they both have the same solution it leads me to believe it’s the answer,
The equation y=0.74x+64 gives the cost y of renting a car if the car is driven x miles. Based on this equation, for every mile the car is driven the cost of increases by how much?
For every mile the car is driven the cost increases by $ 0.74 or 74 cents.
It is given in the question that the equation y = 0.74x + 64 gives the cost y of renting a car if the car is driven x miles.
It is a linear equation in 2 variable.
We have to find, for every mile the car is driven the cost increases by how much.
As we can observe from the equation, 64 is the fixed cost of renting a car, $ 0.74 is the cost of driving per mile.
Hence, for every mile the car is driven the cost increases by $ 0.74 or 74 cents.
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in 2010, $1.00 u.s. bought 8.24 chinese yuan and in 2012 it bought 6.64 chinese yuan. how many u.s. dollars could 1 chinese yuan purchase in 2010 and 2012?
1 Chinese yuan could purchase $0.12 and $0.15 in the year 2010 and 2012 respectively.
For the year 2010; we can calculate as follows;
1 US dollar = 8.24 Chinese yuan
x US dollar = 1 Chinese Yuan
using cross multiplication to find x;
8.24x = 1 ×1
8.24x = 1
x = 1 / 8.24
x = $0.12
For the year 2012; we can calculate as follows;
1 US dollar = 6.64 Chinese Yuan
x US dollar = 1 Chinese Yuan
Using cross multiplication to find x;
6.64x = 1
x = 1 / 6.64
x = $0.15
Therefore, one Chinese yuan could purchase $0.12 in 2010 and $0.15 in the year 2012.
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Please help IXL due at midnight!
When the inequality expression 1 > |b - 5| is evaluated, the value of the expression is 4 < b < 6
What are inequality expressions?Inequality expressions are mathematical statements that are represented by variables, coefficients and operators where the opposite sides are not equal
How to determine the solution to the inequality?The absolute value inequality is given as
1 > |b - 5|
Remove the absolute value inequality symbol
So, we have the following expression
-1 < b - 5 < 1
Add 5 to all sides of the inequality expression
So, we have the following expression
5 -1 < b - 5 + 5 < 1 + 5
Evaluate the sum and the difference in the above inequality expression
So, we have the following expression
4 < b < 6
Hence, the solution to the inequality expression 1 > |b - 5| is 4 < b < 6
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If this trapezoid is moved through the
translation (x+3, y-2), what will the
coordinates of B' be?
A
B
C
5
B' = ([?], [ 1)
4
3
2
1
-7 -6 -5 -4 -3 -2 -1 0
-1
-2
D
1
2
3
PLEASE HELP ASAP
Answer:
(-2, 2)
Step-by-step explanation:
[tex]B(-5,4) \longrightarrow B'(-5+3, 4-2)=B'(-2, 2)[/tex]
on a scaled drawing a building measers 4.5 cm tall if the scale drawing is 25 meters per 2 cm how tall is the actual building?
The actual building is tall 56.3 meters
How to calculate the height of the actual building ?
On a scaled drawing a building measures 4.5 cm tall
The scale drawing is 25 meters per 2 cm
The first step is to calculate the equivalent of 1 cm in meters
2 centimetres= 25 meters
1 centimetre= x
cross multiply both sides
2x= 25
x= 25/2
x= 12.5
1 centimetre is 12.5 metres
4.5 centimetres in metres is
= 4.5 × 12.5
= 56.3
Hence the height of the actual building is 56.3 meters
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You estimate that you can do 30 math problems in 45 min. How many minutes should it take you to do 40 math problems
Select the algebraic expression for the verbal expression 7 divided by the product of 9 and x.
The algebraic expression for the verbal expression 7 divided by the product of 9 and x is 7/9x.
What are algebraic expressions?When addition, subtraction, multiplication, division, and other mathematical operations are performed on variables and constants, the result is a mathematical statement known as an algebraic expression. The variables in the algebraic expressions, which have numerous multiples, are used to depict a real-world event. Calculations are made easier by expressing a real-world situation as an expression.Given verbal expression is 7 divided by the product of 9 and x.
Hence, the required algebraic expression for given verbal expression is 7/9x.
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You are a clerk at a local convenience store. You make $10.20/hour. They will only give you 20 hours a week. Calculate your gross pay.
Answer:
$204
Step-by-step explanation:
Salary per hour = $10.20
Therefore salary for 20 hours = 10.20 X 20
= $204
I hope you understood the answer and it has helped you!!!
Find the value of x.
Answer:
2.28 or 2.2
Step-by-step explanation:
46 angle and 18x+5 angle make a z formation and the interior is always the same
46 -5 =41
41/18 =2.2777
round it off and you get 2.2
you can always verify it by putting it in the place of x
Is an Isoceles triangle With a vertex angle of 50° unique ?
Answer:f
Step-by-step explanation:
Solve the quadratic equations by factoring.
1. 5x^2 = 3x + 2
2. x^2 - 4x + 3 = 0
Help on these two problems above would be very appreciated, thanks!
Solving by factoring in steps shown below
Question 15x² = 3x + 25x² - 3x - 2 = 05x² - 5x + 2x - 2 = 05x(x - 1) + 2(x - 1) = 0(5x + 2)(x - 1) = 05x + 2 = 0 and x - 1 = 05x = - 2 and x = 1x = - 2/5 and x = 1Question 2x² - 4x + 3 = 0x² - x - 3x + 3 = 0x(x - 1) - 3(x - 1) = 0(x - 3)(x - 1) = 0x - 3 = 0 and x - 1 = 0x = 3 and x = 1Answer:
[tex]\textsf{1. \quad $x=1, \quad x=-\dfrac{2}{5}$}[/tex]
[tex]\textsf{2. \quad $x=1, \quad x=3$}[/tex]
Step-by-step explanation:
Solving quadratic equations by factoring
To factor a quadratic in the form [tex]ax^2+bx+c[/tex] , find two numbers that multiply to [tex]ac[/tex] and sum to [tex]b[/tex], and rewrite [tex]b[/tex] as the sum of these two numbers.Factor the first two terms and the last two terms separately.Factor out the common term.Solve for x by applying the zero-product property.Question 1Given equation:
[tex]5x^2=3x+2[/tex]
Subtract (3x + 2) from both sides:
[tex]\implies 5x^2-(3x+2)=3x+2-(3x+2)[/tex]
[tex]\implies 5x^2-3x-2=0[/tex]
Find two numbers that multiply to [tex]ac[/tex] and sum to [tex]b[/tex], and rewrite [tex]b[/tex] as the sum of these two numbers:
[tex]\implies ac=5 \cdot -2=-10[/tex]
[tex]\implies b=-3[/tex]
Therefore, the two numbers are -5 and 2.
Rewrite [tex]b[/tex] as the sum of the two numbers:
[tex]\implies 5x^2-5x+2x-2=0[/tex]
Factor the first two terms and the last two terms separately:
[tex]\implies 5x(x-1)+2(x-1)=0[/tex]
Factor out the common term (x - 1):
[tex]\implies (5x+2)(x-1)=0[/tex]
Apply the zero-product property:
[tex]\implies 5x+2=0 \implies x=-\dfrac{2}{5}[/tex]
[tex]\implies x-1=0 \implies x=1[/tex]
Therefore, the solutions are:
[tex]\boxed{x=1, \quad x=-\dfrac{2}{5}}[/tex]
Question 2Given equation:
[tex]\implies x^2-4x+3=0[/tex]
Find two numbers that multiply to [tex]ac[/tex] and sum to [tex]b[/tex], and rewrite [tex]b[/tex] as the sum of these two numbers:
[tex]\implies ac=1 \cdot 3=3[/tex]
[tex]\implies b=-4[/tex]
Therefore, the two numbers are -3 and -1.
Rewrite [tex]b[/tex] as the sum of the two numbers:
[tex]\implies x^2-3x-x+3=0[/tex]
Factor the first two terms and the last two terms separately:
[tex]\implies x(x-3)-1(x-3)=0[/tex]
Factor out the common term (x - 3):
[tex]\implies (x-1)(x-3)=0[/tex]
Apply the zero-product property:
[tex]\implies x-1=0 \implies x=1[/tex]
[tex]\implies x-3=0 \implies x=3[/tex]
Therefore, the solutions are:
[tex]\boxed{x=1, \quad x=3}[/tex]