Answers
Answer:
Exact answer 32[tex]\pi[/tex]
Estimate 100.48
Step-by-step explanation:
Circuference = [tex]\pi[/tex](diameter) Diameter is the distance across the cirlce going throught the middle
c = 32[tex]\pi[/tex]
Estimate
c = 3.14(32)
100.48
Related Questions
………………………………………………..
Answers
Answer:
62, 78
Step-by-step explanation:
248:4
you want to know
x:1 (hour)
you can do that by dividing by 4 which gives
248/4 = 62
for 2 it's the same, divide by four
Answer:
1- 62 miles per our
2- 78 calories per serving
The price of a gallon of milk was $2. 65. The price rose y dollars after the last hurricane. Then the price dropped $0. 15 and later rose again by $0. 5. Which expression represents the current price of milk?.
Answers
The expression represents the current price of milk is 3 + y in dollars
The initial price of a gallon of milk = $2.65
The price rose y dollars after the last hurricane
Then the expression will be
2.65 + y
Then the price dropped $0. 15
2.65 + y - 0.15
Add the terms
2.65 + y - 0.15 = 2.5 - y
later rose again by $0. 5
2.5 + y + 0.5
Add the terms in the expression
2.5 + y + 0.5 = (2.5 + 0.5) + y
= 3 + y
Current price of milk = 3 + y in dollars
Hence, the expression represents the current price of milk is 3 + y in dollars
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Sheri's house is 0.05 miles from Abdul's house. The post office is 0.1 mile from Abdul’s house. The school is 38mile from the post office.
If Sheri stops at Abdul’s house and the post office on her way to school, how far will Sheri walk in all?
Answers
Answer:
233
Step-by-step explanation:
Write an equation of the line with the given slope and y-intercept
Slope: 4
y-intercept: -8
Answers
[tex]y = 4x -8\qquad \impliedby \begin{array}{|c|ll} \cline{1-1} slope-intercept~form\\ \cline{1-1} \\ y=\underset{y-intercept}{\stackrel{slope\qquad }{\stackrel{\downarrow }{m}x+\underset{\uparrow }{b}}} \\\\ \cline{1-1} \end{array}[/tex]
How many quart of pure antifreeze mut be added to 5 quart of a 10% antifreeze olution to obtain a 30% antifreeze olution?
Answers
The amount of pure antifreeze that needs to be added = 1.429 quarts
What is antifreeze ?
A colored liquid called antifreeze, often known as engine coolant, is combined with water to assist regulate your engine in extremely hot weather.
Let x be the amount of pure antifreeze that needs to be added
The amount of pure antifreeze added (x) plus the amount of pure antifreeze in the 5 quart of 10% antifreeze solution [ 0.1*5] should be equal to the amount of pure antifreeze in the final mixture [ 0.3*(5+x) ]
The equation obtained is:
x+[0.10*5]=0.30(5+x)
x+0.5=1.5+0.30x
x-0.30x =1.5-0.5 = 1
0.70x=1
divide each side by 0.70
x=1.429 quarts
So, the amount of pure antifreeze that needs to be added = 1.429 quarts
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Which of the following is equivalent to -4 + 5x ≤ 16 ?
Answers
Answer:
Step-by-step explanation:
m n
Does the placement of the slope triangles matter when finding the slope of a line? Explain your reasoning.
Choose the correct answer and justification.
Answers
Answer:I really like math
Step-by-step explanation:
Answer:
Step-by-step explanation:
a
Question content area top Part 1 The length of the base of an isosceles triangle is 2x-6. The length of a leg is x. The perimeter of the triangle is 43 . Find x.
Answers
The value of x in the isosceles triangle is 9.25.
What is the value of x?An isosceles triangle is a polygon that has three sides. The opposite length have the same length and equal angles. has two opposite sides. If the two angles are equal , it means the triangle is an isosceles.
Th perimeter of an isosceles triangle is the sum of the length of the three sides of the triangle.
Perimeter = (2 x length of leg) + base
43 = (2x x) + 2x - 6
43 = 2x + 2x - 6
43 = 4x - 6
43 - 6 = 4x
37 = 4x
x = 37 / 4
x = 9.25
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what is the rotational symmetry of this please somone tell me
Answers
The rotational symmetry of the above attached figure is 4 ...
What is the rotational symmetry ?
= Rotational symmetry is the number of times a shape can “fit into itself” , when it is rotated 360° about its centre....
Example: Rotational Symmetry of Equilateral Triangle..
Equal sides and angles define an equilateral triangle.
• How can u find rotational symmetry ?
= An object has rotational symmetry if that figure is itself after you rotate it less than 180 degrees. If it is itself after exactly 180 degrees no more no less then that figure has point symmetry.
The rotational symmetry of the above attached figure is 4 ...
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Which is the order from least to greatest of the following: six fifths, eight ninths, 0.5, forty percent?
forty percent, 0.5, eight ninths, six fifths
six fifths, eight ninths, 0.5, forty percent
0.5, forty percent, six fifths, eight ninths
eight ninths, 0.5, six fifths, forty percent
Answers
The order from least to greatest is "forty percent, 0.5, eight-ninths, six-fifths".
What is a fraction?A fraction is a part of the whole represented by a/b, where a and b are any integers.
The given numbers are,
six fifths = 6/5 = 1.2
eight ninths = 8/9 = 0.9
0.5
40% = 0.4
Therefore, the order from least to greatest is "forty percent, 0.5, eight-ninths, six-fifths".
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g if the standard deviation of the lifetimes of television tubes is estimated to be 100 h, how large a sample must we take in order to be (a) 95%, (b) 99%, and (c) 99.73% confident that the error in the estimated mean lifetime will not exceed 20 h?.
Answers
So the of 95% is 19/24 and 99%is 33/40
And 34/40 means diffelction from mean value. That is
Given that the standard of life time is 100h
And life is not exceed by 20 h
So maximum life time will be 120 h
And minimum life time will be 80 h
So a) if he is 95 % confident than
P(x<20) is 100/120
=5/6
As he 95% confident than
5/6*95/100
5/6*19/20
19/24
B) 99%
So it will be equal to 5/6*99/100
33/40
C) 99.73
So it will be equal to 5/6*99.73/100
Approx
34/40
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1.109, 1.1, 1.19, 1.1091 order these numbers from least to greatest
Answers
A triangle has two sides of length 18 and 13 What is the smallest possible whole-number length for the third side?
Answers
6
Explanation:
‘The sum of the two shortest sides in the triangle must be larger than the third side.’
Therefore, if the longest side is 18, another side is 13, the remaining side must be bigger than 18 - 13 = 5.
The smallest possible whole-number length for the third side is 6.
I would appreciate it if you mark my answer as brainliest.
how many solutions does have 9x+3=6x-12=3x
Answers
Answer: only one solution
Step-by-step explanation:
9x + 2/3 = 3x + 3 is a linear equation.
Linear equations only have one solution as the lowest power in numbers is 1.
9x + 2/3 = 3x + 3
9x - 3x = 3 - 2/3
3x = 7/3
x = (7/3)/3
x = 7/9
What is the percent of chloride ion in a sample if 2. 500 g of the sample produces 1. 750 g of agcl when treated with excess ag⁺? report your answer to two decimal places.
Answers
The percent of chloride ion in a sample if 2. 500 g of the sample produces 1. 750 g of AgCl when treated with excess ag⁺ is 17.2%
The percent of chloride can be calculate as follow:
Mass of AgCl precipitated = 1.750 g
Molar mass of AgCl = 143.32 g/mol
Molar mass of Chlorine atom = 35.45 g/mol
Asume, all the chlorine in the sample is precipitated to silver chloride. So, the mass of chlorine in silver chloride will be equal to the mass of chlorine present in the sample.
To calculate the mass of chlorine in given mass of AgCl, we apply unitary method:
In 143.32 g of silver chloride, mass of chlorine present is 35.45 g
So, in 1.3487 g of silver chloride, mass of chlorine present will be =
35.45g/143.32 g * 1.750 g = 0.43 g
To calculate the percentage composition of chlorine in pure chloride compound, as follows:
Mass of pure chloride compound = 2.500 g
Mass of chlorine = 0.43 g
% Chlorine = 0.43/2.5 *100
% Chlorine = 17.2 %
Therefore, the mass percentage of chloride in pure chloride compound is 17.2%
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If a1 = 3 and an = 5an-1 + 3 then find the value of a4.
Answers
Answer:
Step-by-step explanation:
4a
1/3(12 - 9w) Use the distributive property to remove the parentheses.
Simplify your answer as much as possible.
Answers
Answer:
Step-by-step explanation:
1/3(12) - 1/3(9w)
4 - 3w
i dont understand it
Answers
The given expression 7x - y = -9 in the slope intercept form can be represented as y = 7x + 9.
The expression given to us is -
7x - y = -9
We have to represent this in the slope intercept form.
The slope intercept form can be represented as -
y = mx + c
where, y = y coordinate of the line
m = slope of the line
x = x coordinate of the line
c = y intercept of the line
Thus, representing the given expression in the slope intercept form, we have
7x - y = -9
=> -y = -7x - 9
=> y = 7x + 9
Thus, the given expression in the slope intercept form can be represented as y = 7x + 9.
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Ken reads 1 1/2 pages in a book in 3/4 minute. How many minutes does it take him to read one page
Answers
x pages = 1 minute
Therefore, x = 1 1/2 divided by 3/4 = 2 minute
Find the slope (m) and the y-intercept (b) of each line. Simplify your answers. Use the slope-intercept form of a linear equation: y = mx + b
y = -x
m =
/
b =
Answers
Answer:
slope = -1, y-intercept = is n/a. The line is vertical since the y intercept was not given.
What is the equation in point-slope form of a line that passes through the points (5, −3) and (−2, 9) ?
y−3=−2(x+5)
y+3=−127(x−5)
y+3=−2(x−5)
y−3=−127(x+5)
Answers
The equation in point-slope form of a line that passes through the points (5, −3) and (−2, 9) is
y + 3 = -12/7(x - 5)
Given, a line that passes through the points (5, −3) and (−2, 9).
Now, we have to find the equation of the line in point-slope form.
As, we know to find the equation of a line,
(y - y1)/(x - x1) = (y1 - y2)/(x1 - x2)
Now, using the above formula, we get
(y + 3)/(x - 5) = (-3 - 9)/(5 + 2)
(y + 3)/(x - 5) = -12/7
On cross-multiplying, we get
y + 3 = -12/7(x - 5)
Hence, the equation in point-slope form of a line that passes through the points (5, −3) and (−2, 9) is
y + 3 = -12/7(x - 5)
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Simplify: 5x – 12y + 8x + 2xy + 4xy
Answers
Answer:
13x-12y+6xy
Step-by-step explanation:
To make this easier, we can rearrange these terms, and get
5x+8x-12y+2xy+4xy.
x and y just represent variables, so we can combine 5x and 8x to get 13x, and we can combine 2xy and 4xy to get 6xy.
Now we have 13x-12y+6xy, and nothing else can be combined.
The volume of a cylinder is 220 cm³ the radius of the cross section is 25cm Find the height of the cylinder.
Answers
Answer:
2.80112699842
Step-by-step explanation:
height = volume / (π × radius²)
220/25 pi
vthe waitress at the restaurant provided really good service so you and your friends decided to add on an 20% tip to your $32 bill. how much money will be added onto the bill for the tip?
Answers
The answer of the given question is $6.4, this is the money that need to be added onto the bill for the tip.
How to calculate a 20% tip?
To calculate tip, we need to multiply the total bill by 1 plus the decimal percentage tip we'd like to leave. If we wanted to leave a 20% tip, we would add 1 to 0.20 to get 1.20. Then, multiply the bill by 1.20 to get the total amount we'd leave including tip.
In this case, we have a $32 bill and we would like to add on an 20% tip. So, it will be as follows:
20% = 0.20
1 + 0.20 = 1.20
Total bill will be 1.20 x $32 = $38.4
Hence, the tip amount is $38.4 - $32 = $6.4
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find the mean of 5, 25, 10, 15, 20
Answers
Answer:15
Step-by-step explanation:
The mean is the sum of all the numbers divided by the amount of numbers
Step 1: Add
5+25+10+15+20 = 75
Step 2: Divide
Since there are 5 numbers divide 75 by 5
75/5 = 15
The answer is 15
Answer: The mean is 15
Step-by-step explanation:
To find the mean, we add all the numbers together and divide by the number of numbers.
[tex]\displaystyle \frac{5+ 25+10+ 15+ 20}{5} = \frac{75}{5} = 15[/tex]
23.89$+41.25$ plis help plis
Answers
Answer:
$65.14
Step-by-step explanation:
You will line up the numbers according to the decimal points.
You add as you normally would, ignoring the decimal point.
When you get your answer you will bring the decimal point down.
(How your problem should look:)
$41.25
+ $23.89
$65.14
The length of the bae of an iocele triangle i x. The length of a leg i 4x−3. The perimeter of the triangle i 66. Find x.
Answers
Answer:
x = 8
Step-by-step explanation:
since the triangle is isosceles then the 2 legs are congruent, that is both 4x - 3
the perimeter is the sum of the 3 sides , that is
x + 4x - 3 + 4x - 3 = 66
9x - 6 = 66 ( add 6 to both sides )
9x = 72 ( divide both sides by 9 )
x = 8
To raise money for after-school programs at an elementary school, a group of parents is holding a weekend of games in a community center. They charge $8 per person for entry into the event. The group would like to earn at least $600, after paying for the cost of renting the space, which is $40 an hour.
Answers
The inequality represents the situation group of parents who would like to earn at least $600, after paying for the cost of renting the space $40 an hour, and charging $8 per person for entry into the event is 8x - 4y ≥ 600, and x > 0, Y > 0.
We are given the following;
They charge $8 per person for entry into the event.
The group would like to earn at least $600, after paying for the cost of renting the space, which is $40 an hour.
Let the number of people be x and the number of hours they are present in the space be y.
Per person entry cost is $8.
Donations by all the people entering the space are 8x.
The per hour cost of rent is $40.
The total cost of renting the space is 40y which will be subtracted from the total amount of donations.
They plan to earn a minimum of $600.
So, the inequality will be given by;
8x - 4y ≥ 600 and x > 0, Y > 0.
Thus, the inequality represents the situation group of parents who would like to earn at least $600, after paying for the cost of renting the space $40 an hour, and charging $8 per person for entry into the event is 8x - 4y ≥ 600, and x > 0, Y > 0.
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What is What is 2/5+(1/2)2
The 2 is an exponent
And the others are fractions
2/5+(1/2)
Answers
The value is 13/20
We do simplification here
2/5+1/4
=(8+5)/20
=13/20
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A store is offering a 25% discount on all electronics during a special weekend sale. Marcia wants to buy a television that regularly costs p dollars. She has written the expression 0. 75p to represent the sale price. Which is the best description for her expression?.
Answers
Marcia has written the expression 0. 75p to represent the sale price. The best description for her expression is she multiplied p by 0.25 then subtracted that from p.
How to express the sale price?
The sale price is the price after discount. Discount is the amount by which the origin price of an item is reduced. In this case, Marcia wants to buy a television with the origin prices is p dollars. The store is offering 25% discount.
p = the origin price
25% discount = 0.75p
The sale price = p - (0.25p)
So, the best description for Marcia's expression is multiplied p by 0.25 then subtracted that from p.
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