Answer:
12x=2pi*r
Step-by-step explanation:
2*22/7*r=12x
r=12x*7/44
r=21x/11
The radius of a circle is calculated by dividing the given circumference by 2π. When given circumferences of 6 inches, 6π inches, 12 inches, and 24π inches, the corresponding radii are approximately 0.955 inches, 3 inches, 1.91 inches, and 12 inches, respectively.
To find the radius of a circle given its circumference, we use the formula for the circumference of a circle, which is C = 2πr, where C is the circumference and r is the radius. Since we are given the circumference, we can rearrange this formula to solve for the radius as follows: r = C / (2π).
Given the possible circumferences provided, we can calculate the radius for each.
For 6 inches: r = 6 / (2π) = 6 / (2 * 3.14) = 6 / 6.28 = approximately 0.955 inches
For 6π inches: r = 6π / (2π) = 6 / 2 = 3 inches
For 12 inches: r = 12 / (2π) = 12 / (2 * 3.14) = 12 / 6.28 = approximately 1.91 inches
For 24π inches: r = 24π / (2π) = 24 / 2 = 12 inches
A direct variation function contains the points (-9, -3) and (-12, 4). Which equation represents the function"
y=-3x
0 y=-
Oy
y = 3x
square the following numbers 4 6 13 10
Answer:
16 36 169 100
Step-by-step explanation:
just square them
16, 36, 169, 100
square of 4
[tex]4^{2}=16[/tex]
square of 6
[tex]6^{2}=36[/tex]
square of 13
[tex]13^{2}=169[/tex]
square of 10
[tex]10^{2} = 100[/tex]
In the mathematics squaring is easy to understand. Squaring the number means multiplying it by itself. Squaring is written on mathematical symbols by putting a two above the number you are squaring to show that it is multiplied two times
What does it mean if you square something in math?acceleration, or length per square timecross section (physics), the area-dimensioned quantitycoupling constant (has square charge in the denominator, or may be expressed with square distance in the numerator)kinetic energy (quadratic dependence on velocity)specific energy, the (square velocity)-dimensioned quantityLearn more about square here https://brainly.com/question/14198272
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Under normal conditions, 1.5 feet of snow will melt into 2 inches of water. During a winter season high in the mountains, 301 feet of snow fell. How many inches of water will there be when the snow melts?
Answer: 401.33 inches
1 3/8 divided by 1/6. Please help me
For this case we have to:
[tex]1 \frac {3} {8} = \frac {8 + 3} {8} = \frac {11} {8}[/tex]
We must divide:
[tex]\frac {\frac {11} {8}} {\frac {1} {6}} =[/tex]
Applying double C we have:
[tex]\frac {11 * 6} {8 * 1} = \frac {66} {8} = \frac {33} {4}[/tex]
Converting to a mixed number we have:
[tex]8 \frac {1} {4}[/tex]
Answer:
[tex]8 \frac {1} {4}[/tex]
(7−4n)⋅6 Apply the distributive property to create an equivalent expression.
Answer:
42-24n
Step-by-step explanation:
(7 - 4n) . 6
= (7)(6) - (4n)(6) ...........using distributive property, multiply each term by (6)
= 42 -24n (answer)
A sphere and a cylinder have the same radius and height the volume of the cylinder is 18cm3 what is the volume
Answer:
The volume of the sphere is 24 cm³
Step-by-step explanation:
* Lets explain the difference between the cylinder and the sphere
- The cylinder has two circular bases and a curved surface
- The bases of the cylinder have radius r and the curved surface has
a height h
- The volume of the cylinder = area of its base × its height
∵ The area of the circle is πr²
∴ The volume of the cylinder is V = π r² h
- A sphere is a perfectly round geometrical object in three-dimensional
space
- It the set of points that are all at the same distance r from a given point
that means its radius equals its height
- The volume of the sphere = 4/3 π r³
* Now lets solve the problem
∵ The cylinder and the sphere have the same radius and height
∵ The volume of the cylinder is 18 cm³
- Lets equate the rule of the volume of the cylinder by 18
∵ The volume of the cylinder = π r² h
∴ π r² h = 18 ⇒ divide both side by π
∴ r² h = 18/π
- The sphere and the cylinder have the same radius and height
∴ The radius and height of the sphere have the same value of the
cylinder
∵ The the height of the sphere is its radius
∴ r²h of the cylinder = r³ in the sphere
∴ r³ = 18/π
- Substitute this value in the rule of the volume of the sphere
∵ The volume of the sphere = 4/3 π r³
∴ The volume of the sphere = 4/3 π (18/π) ⇒ cancel π's
∴ The volume of the sphere = 4/3 (18) = 24 cm³
* The volume of the sphere is 24 cm³
Choices to pick are : y=3x
And y=2x+2 can someone please help out ??
Answer:
y = 2x + 2
Step-by-step explanation:
Start at point (2, 6).
Go up 2 units up (rise = 2) and 1 unit right (run = 1). Now you are at point (3, 8) which is on the graph.
slope = rise/run = 2/1 = 2
The slope of the graph is 2. m = 2
Now look at point (0, 2). The y-intercept is 2. b = 2
The equation is
y = mx + b
y = 2x + 2
Answer:
y = 2x + 2
Step-by-step explanation:
Here we're asked to come up with a linear function relating x and y.
First we find the slope of the line. As we move from (0, 2) to (3, 8), x increases by 3 and y by 6. Thus, the slope is
m = rise / run = 6 / 3 = 2.
Plugging givens into the slope-intercept formula y = mx + b, we find b:
2 = 2(0) + b, so that b = 2.
Then the desired relationship between x and y is y = 2x + 2.
How many 3 digit multiples of both 4 and 6 are there?
To find the number of 3-digit multiples of both 4 and 6, we find the least common multiple (LCM) of 4 and 6, which is 12. Then, we count the number of 3-digit multiples of 12.
Explanation:To find the number of 3-digit multiples of both 4 and 6, we need to find the least common multiple (LCM) of 4 and 6. The LCM of 4 and 6 is 12. Since 12 is a multiple of both 4 and 6, any multiple of 12 will be a multiple of both 4 and 6.
Now, we need to find the number of 3-digit multiples of 12. The smallest 3-digit multiple of 12 is 108, and the largest is 996. So, we need to find how many numbers from 108 to 996 are divisible by 12.
We can divide 996 by 12 to find that the quotient is 83 and the remainder is 0. So, there are 83 3-digit multiples of 12. Therefore, there are 83 3-digit multiples of both 4 and 6.
What is the answer of a ?
Answer:
2.2Step-by-step explanation:
Use the cosine law (look at the picture).
We have:
[tex]a=a\\b=4\\c=3\\\gamma=32^o[/tex]
[tex]a^2=4^2+3^2-2(4)(3)\cos32^o[/tex]
[tex]\cos32^o\approx0.848[/tex] → look at the second picture
[tex]a^2=16+9-24(0.848)\\\\a^2=25-20.352\\\\a^2=4.648\to a=\sqrt{4.648}\\\\a\approx2.2[/tex]
Brooke found the equation of the line passing through the points (–7, 25) and (–4, 13) in slope-intercept form as follows.
Question:
What was Brooke’s error?
•She found the incorrect slope in step 1.
•She mixed up the x- and y-coordinates when she plugged in the point in step 2.
•She found the incorrect y-intercept in step 2.
•She mixed up the slope and y-intercept when she wrote the equation in step 3.
For this case we have that by definition, the equation of a line in the slope-intersection form is given by:
[tex]y = mx + b[/tex]
Where:
m: It's the slope
b: It is the cut-off point with the y axis
[tex]m = \frac {y2-y1} {x2-x1}[/tex]
We have the following points:
[tex](x1, y1): (- 7,25)\\(x2, y2): (- 4,13)[/tex]
Substituting the values:[tex]m = \frac {13-25} {- 4 - (- 7)} = \frac {-12} {- 4 + 7} = \frac {-12} {3} = - 4[/tex]
Thus, the line is of the form:
[tex]y = -4x + b[/tex]
We substitute one of the points and find "b":
[tex]13 = -4 (-4) + b\\13 = 16 + b\\b = 13-16 = -3[/tex]
Finally we have to:
[tex]y = -4x-3[/tex]
Answer:
The equation es [tex]y = -4x-3[/tex]
Answer:
She mixed up the slope and y-intercept when she wrote the equation in step 3.
if y=5 when x=-3 find x when y=-1
Answer:
3/5
Step-by-step explanation:
5 / -1 = -5
so
-3 / -5 = 3/5
To find x when y=-1, substitute y=-1 into the equation y = -173.5 + 4.83x and solve for x.
Explanation:To find x when y=-1, you can use the equation of the line where y = 5 when x = -3. Based on the given information, the line of best fit is y = -173.5 + 4.83x. By substituting y = -1 into the equation, we can solve for x:
-1 = -173.5 + 4.83x
Adding 173.5 to both sides of the equation:
172.5 = 4.83x
Dividing both sides by 4.83:
x = 35.69
Therefore, when y = -1, x is approximately 35.69.
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What is the value of x
We know that the whole angle of the triangle is 73. Since the known angle is 45 degrees, we need to find out what the other is.
Subtract 45 from 73 to find the angle of the unknown triangle.
73-45=28.
Now that we know the value of the unknown triangle, solve for x
Make an equation.
2x+5=28
Subtract 5 on both sides.
2x=23
Divide 23 by 2 to isolate x.
X=11.5
The answer is C. 11.5
Hope this helps!
what expression represents the profit, and what is the profit if 240 cell phones are sold
Answer: $16.850
Step-by-step explanation:
Subtract 2x^2+55x+10 - (2x^2 -15x-40)
70x+50
Then put in 240 for x
Michael can spend a maximum of $234 on office supplies. Each ream of
paper costs $6. Each ink cartridge costs $18. Which of the following graphs
represents the possible combinations of paper and ink cartridges that he may
buy?
I added the graph below for the verified Apex answer :)
The inequality equation will be 6x + 18y ≤ 234.
What is inequality?Inequality is defined as an equation that does not contain an equal sign. Inequality is a term that describes a statement's relative size and can be used to compare these two claims.
Michael can spend a maximum of $234 on office supplies.
Each ream of paper costs $6. Each ink cartridge costs $18.
Then the inequality equation will be
Let x be the number of reams of paper and y be the number of the ink cartridge. Then we have
6x + 18y ≤ 234
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write an equation in slope intercept form for the line that passes through the points (3,2) and(-9,6)
Answer:
y = - [tex]\frac{1}{3}[/tex] x + 3
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
Calculate m using the slope formula
m = (y₂ - y₁ ) / (x₂ - x₁ )
with (x₁, y₁ ) = (3, 2) and (x₂, y₂ ) = (- 9, 6)
m = [tex]\frac{6-2}{-9-3}[/tex] = [tex]\frac{4}{-12}[/tex] = - [tex]\frac{1}{3}[/tex], hence
y = - [tex]\frac{1}{3}[/tex] x + c ← is the partial equation
To find c substitute either of the 2 points into the partial equation
Using (- 9, 6), then
6 = 3 + c ⇒ c = 6 - 3 = 3
y = - [tex]\frac{1}{3}[/tex] x + 3 ← in slope- intercept form
On a coordinate plane, point A is located at (7,4), and point B is located at (-8,4). What is the distance between the two points?
Answer:
15
Step-by-step explanation:
This problem is quite simple; that is, if you know the proper formula that must be applied in finding the distance. The formula for finding the distance between two coordinate points is: √(x2-x1)^2+(y2-y1)^2. Now, obviously, (x2-x1)^2 and (y2-y1)^2 are both under the radical, where x2 and y2 represent the xy coordinates of point A (7,4) and x1 and y1 represent the xy coordinates of point B (-8,4). Now, all you must do is plug the points into the distance formula to get the answer, 15.
The distance between the two points is 15 units.
The coordinate points are A (7, 4) and B (-8,4).
What is the formula to find the distance between coordinate points?The formula to find the distance between two coordinate points is Distance=[tex]\sqrt{(x_{2}-x_{1} )^{2} +(y_{2}-y_{1} )^{2}}[/tex].
Now, the distance between two coordinate points=[tex]\sqrt{(-8-7)^{2} +(4-4)^{2}}[/tex]
=√225
=15 units
Therefore, the distance between the two points is 15 units.
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What does Pythagoras’ famous theorem involve? A. pentagons B. polygons C. triangles D. rectangles
Answer:
C. triangles
Step-by-step explanation:
Pythagoras Theorem is a theorem which states you can work out a side of a right - angled triangle using the other 2 sides. Pythagoras will not work on shapes except from a right - angled triangle and square
A system of equations is given below. -3x + 6 and y = 6 - 3x
Which of the following statements best describes the two lines?
They have different slopes and different y-intercepts, so they have no solution. They have different slopes and different y-intercepts, so they have one solution. They have the same slope and the same y-intercept, so they have no solution. They have the same slope and the same y-intercept, so they have infinitely many solutions.
Answer:
They have different slopes and different y-intercepts, so they have no solution
Step-by-step explanation:
Answer:
Infinite solutions Answer explained below
Step-by-step explanation:
Let us see the various conditions for intersections of two lines in simplest way.
1. Same slope and same y intercept : Infinite solutions
2. Same slope and different y intercepts : No solution
3. Different slope and same y intercept : unique solution
4. Different slope and different y intercept : Unique solution
Here slope means the tangent of the angle line makes with the positive x axis and y intercept is the y coordinate at which the line intersect the y axis.
In our equations , we our slopes and y intercepts as
y=-3x+6
slope = -3 and y intercept = 6
y=6-3x
slope = -3 and y intercept = 6
Hence same slope and same y intercept , thus have infinite solutions
What is the first quartile of the data set?
10, 11, 12, 15, 17, 19, 22, 24, 29, 33, 38
A. 12
B. 19
C. 29
D. 10
Answer:
A
Step-by-step explanation:
First find the median of the data set.
The median is the middle value of the data set arranged in ascending order
10, 11, 12, 15, 17, 19, 22, 24, 29, 33, 38
The median = 19
The first quartile ( lower) is the middle value of the data to the left of the median.
10, 11, 12, 15, 17
The first quartile is 12 → A
What is the ordered pair of X′ after point X (3, 4) is rotated 180°?
Answer with explanation:
Pre image= Coordinates of point X= (3,4)
When point ,(x,y) is rotated by an angle of 180°, then coordinates of image that is point (x,y) after rotation = (-x, -y)
⇒≡Coordinates of point X(3,4) after rotation by an angle of 180°=X'(-3,-4)
The coordinates after a rotation of 180 degrees about the origin is: X'(-3, -4)
How to find the transformation?There are different types of transformation such as:
Translation
Rotation
Reflection
Dilation
The transformation rule for the rotation about 180 degrees (180°) about the origin is (x,y)→(−x,−y) .
Thus:
X(3, 4) → X'(-3, -4)
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5 1/3 divided by 1 1/6
Answer:
32/7
Step-by-step explanation:
5 1/3=16/3
1 1/6=7/6
----------------
(16/3)/(7/6)
(16/3)(6/7)
(16/1)(2/7)
32/7
help answer question 3
Answer:
The answer is the first one. Inside the absolute value symbols it is negative but absolute value answers are always positive. Instead of -30 the answer is 30.
Deena has 4 pairs of of white socks , 3 pairs of black sock, 1 pair of red socks, and 2 pairs of Navy socks in her drawer each pair of socks is folded together . If she pulls a pair of socks out of her drawer in the morning without looking what is the probability she will choose a pair of white socks
The probability she will choose a pair of white socks is [tex]\frac{2}{5}[/tex]
Probability :Given that,
Deena has 4 pairs of of white socks3 pairs of black sock1 pair of red socks 2 pairs of Navy socksTotal number of outcomes [tex]=4+3+1+2=10[/tex]
We have to find the probability she will choose a pair of white socks.
Number of favourable outcomes[tex]=4[/tex]
the probability she will choose a pair of white socks is,
[tex]P=\frac{4}{10} =\frac{2}{5}[/tex]
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What divides a line segment into two congruent segments?
Answer:
segment bisector
Step-by-step explanation:
Too cut in half, think bisect.
So we are talking about a segment, so segment bisector
which expression is equivalent to 2(a+3) when a=3
Answer:
12
Step-by-step explanation:
2(a+3)
Given a = 3, all you need to do is just plug in a = 3 into the expression
2(3 + 3)
= 2 (6)
= 12
Answer:
2(3+3)
6x2
12
Step-by-step explanation:
Can anyone help me? Factorise: 81m^2-1
Answer:
(9m-1)(9m+1)
Step-by-step explanation:
This is a difference of squares
(9m)^2-1^2
Use a^2-b^2=(a-b)(a+b)
So the answer is (9m-1)(9m+1)
Answer:
81m² - 1 = (9m - 1)(9m + 1)Step-by-step explanation:
[tex]81m^2-1=9^2m^2-1^2=(9m)^2-1^2\\\\\text{use}\ a^2-b^2=(a-b)(a+b)\\\\=(9m-1)(9m+1)[/tex]
Is the Histogram uniform, symmetric, or skewed ?
Answer:
Symmetric
Step-by-step explanation:
If you put a line in the middle of the third row and fold it on itself, it would match.
Answer:
i have to say it's symmetric cos technically uniform would kinda mean "with form if u know what i mean, and is kinda like "random" and like, cut the graph in half and it's a perfect fit
What is the area of the triangle 10 13 12
Answer:
A= 57 sq units
Step-by-step explanation:
To calculate the are area of a triangle we use the Herons formula:
A=√s(s-a)(s-b)(s-c) where a, b and c are the sides of the triangle.
s=(a+b+c)/2
s=(10+13+12)/2
=17.5
A=√[17.5(17.5-10)(17.5-13)(17.5-12)]
A= 57 sq units
Answer:
60 units ^2
Step-by-step explanation:
Match each quadratic equation with the best way to solve it.
1. 5x2 + 12x - 3 = 0
solve by square root method
2. x2 - 4x = 8
solve by factoring
3. 4x2 - 25 = 0
solve by quadratic formula
4. x2 - 5x + 6 = 0
solve by completing the square
Answer:
5x^2 + 12x -3 =0 ---------> solve by quadratic formula
x^2 -4x = 8 ----------> solve by completing the square
4x^2 -25 = 0 ----------> solve by square root method
x^2-5x+ 6 = 0 -----------> solve by factoring
Step-by-step explanation:
1. 5x^2 + 12x -3 =0
The best way to solve this equation is quadratic formula as all the terms in the equation have coefficients it will be convenient to solve it through quadratic formula.
2. x^2 -4x = 8
The best way to solve this equation is by completing the square as the factors cannot be made directly.
3. 4x^2 -25 = 0
the best way to solve this equation is to solve by square root method as the 25 and 4 are perfect squares.
4. x^2-5x+ 6 = 0
The best way to solve this equation is to solve by factoring as it can clearly be seen that it is convenient to make factors ..
To make a students uniform, the tailor needs 15/4 m of cloth. To make 26 such uniforms. How much cloth will he need?
For one uniform 15/4 m of cloth is needed, since we need 26 uniforms week need 26 time that much cloth. Set up and multiply the equation like so...
[tex]\frac{15}{4}[/tex]*26
or you can write it like so...
[tex]\frac{15}{4} *\frac{26}{1}[/tex]
Multiply numerator by numerator and denominator by denominator...
[tex]\frac{15*26}{4*1}[/tex]
[tex]\frac{390}{4}[/tex]
^^^This can be further simplified to...
[tex]\frac{195}{2}[/tex]m
or
97.5 m
Hope this helped!
~Just a girl in love with Shawn Mendes
Answer:
95 1/2 m of cloth
Step-by-step explanation:
Multiply:
(15/4 m)
------------ * 26 uniforms = 95.5 m of cloth needed, or 95 1/2 m of cloth
uniform