Answer:
The arc length of the partial circle is [tex]6\pi\ units[/tex]
Step-by-step explanation:
we know that
The circumference of a circle is equal to
[tex]C=2\pi r[/tex]
In this problem we have a 3/4 of a circle
so
the circumference is equal to
[tex]C=(\frac{3}{4})2\pi r[/tex]
[tex]C=\frac{3}{2}\pi r[/tex]
we have
[tex]r=4\ units[/tex]
substitute
[tex]C=\frac{3}{2}\pi (4)[/tex]
[tex]C=6\pi\ units[/tex]
Which of the following is true about the expression √3•2?
The product of √3 and √2 is √6, which is an irrational number. Thus, the expression represents the product of two irrational numbers resulting in an irrational number. The correct answer is option B.
To solve the question about the expression √3 · √2, we need to consider both the nature of the numbers involved and the result of their multiplication.
First, know that both √3 and √2 are irrational numbers. An irrational number cannot be expressed as a simple fraction, which is the case for both of these numbers.
When multiplying two irrational numbers, the result can be rational or irrational depending on the values involved. However, in this case:
√3 · √2 equals √(3 · 2)√(3 · 2) equals √6Since √6 is not a perfect square and cannot be simplified to a rational number, it is also irrational.
Therefore, the correct answer is: B. It represents the product of two irrational numbers and is equivalent to an irrational number.
Complete Question:
Which of the following is true about the expression √(3)· √(2) ?
A It represents the product of two irrational numbers and is equivalent to a rational number.
B It represents the product of two irrational numbers and is equivalent to an irrational number
C. It represents the product of two rational numbers and is equivalent to a rational number.
D. It represents the product of two rational numbers and is equivalent to an irrational number
nene buys a new bowling ball that weights 10 pounds and 13 ounces at a sporting goods store what is the total weight of the bowling ball?
Step By Step Explanation
Answer:
The total weight of the bowling ball in ounces is 173 ounces
Step-by-step explanation:
To find this, first change the pounds to ounces by multiplying by 16.
10lbs * 16 = 160 ounces
Now add the ounces to that.
160 + 13 = 173 ounces
The total weight of Nene's bowling ball is 10.8125 pounds, after converting 13 ounces to pounds (since there are 16 ounces in 1 pound) and adding it to the 10 pounds.
To find the total weight of Nene's new bowling ball, we must first recognize that the weight is given in two different units: pounds and ounces. There are 16 ounces in 1 pound.
Step 1: Identify the weight in pounds and ounces.
Weight in pounds: 10 pounds
Weight in ounces: 13 ounces
Step 2: Convert the ounces to pounds. Since there are 16 ounces in 1 pound, we divide 13 ounces by 16 to get the weight in pounds.
13 ounces / 16 = 0.8125 pounds
Step 3: Add the weights to get the total weight in pounds.
10 pounds + 0.8125 pounds = 10.8125 pounds
Therefore, the total weight of the bowling ball is 10.8125 pounds.
The equation, a + (b + 7) = (b + 7) + a, is an example of which property?
A. distributive property
B. associative property of addition
C. commutative property of addition
D. associative property of multiplication
Answer:
B. Commutative Property
Step-by-step explanation:
A. Distributive property :
for example we take 256 × 1008
256 × 1008
256 ×(1000 +8)
(256 × 1000) + (256 × 8)
256000 + 2064
Answer : 258064
Distributive is distributing a number that contains 0's to make it easier for one self
B. Associative Property of Addition :
for example (230 + 125) + (390 + 460)
if we change it like this or in any order than particularly changes the grouping
(230 + 460) + (390 + 125)
D. Associative Property of Multiplication
(230 × 125) × (390 × 460)
it's the same as the previous example just in Multiplication
The equation demonstrates the commutative property of addition, which states that the order of addition does not affect the sum. Hence option C is the answer.
The equation a + (b + 7) = (b + 7) + a is an example of the commutative property of addition. This property states that the order in which two numbers are added does not change the sum.
In other words, for any numbers a and b, the equation A+B = B+A holds true. This principle applies to ordinary numbers; for example, adding 2 + 3 will give the same result as adding 3 + 2.
what is the answerrrrrrr
Answer:
the answer is 118
Step-by-step explanation:
since one pound is equal to 16 ounces you just convert
Answer: D =118 ounces
Step-by-step explanation:There is 6 pounds plus the the other pound then your left with 22-16=6 7 pounds times 16 112+6=118
Change .45 to a fraction in lowest terms.
Answer:
9/20
Step-by-step explanation:
.45 = 45/100
Divide the top and bottom by 5
45/5 = 9
100/5 = 20
The fraction becomes 9/20
Answer: 9/20
Step-by-step explanation: .45 equals the fraction 45/100.
To reduce the fraction divide the top and bottom by 5:
45/100 = 9/20, which is in the lowest terms.
Is the point (5,-1) a solution of y=2x-11
if the given point satisfies this equation then it would be its solution
(-1)=2(5)-11
-1=10-1
-1=-1
lHS=RHS
Hence (/,-1) is the solution of y=2x-11
Halp plz first to get right gets brainlyist (don't mind my spelling)
Tina’s mums cooked 50 dishes Vida mum cooked 20 dishes how many dishes did they cook altogether
Tina's mum and Vida's mum cooked a total of 70 dishes together by adding the 50 dishes cooked by Tina's mum to the 20 dishes cooked by Vida's mum.
The question you've asked relates to simple addition, which is a basic arithmetic operation. To find out how many dishes Tina's mum and Vida's mum cooked altogether, we simply add the two numbers together:
Number of dishes Tina's mum cooked = 50
Number of dishes Vida's mum cooked = 20
Total number of dishes cooked = 50 (Tina's mum) + 20 (Vida's mum) = 70 dishes
So, Tina's mum and Vida's mum cooked 70 dishes in total.
which statement is true about the function f(x)=√x? the domain of the graph is all real numbers. the range of thebgraph is all real numbers. the domain of the graph is all real numbers less than or equal to 0. the range of the graph is all real numbers greater than or equal to 0.
Answer:
The range of the graph is all real numbers greater than or equal to 0
Step-by-step explanation:
we have
[tex]f(x)=\sqrt{x}[/tex]
we know that
The domain of the function is the interval -------> [0,∞)
All real numbers greater than or equal to zero
The range of the function is the interval -----> [0,∞)
All real numbers greater than or equal to zero
see the attached figure to better understand the problem
Answer:
The range of the graph is all real numbers greater than or equal to 0.
Step-by-step explanation:
Consider the provided function [tex]f(x)=\sqrt{x}[/tex].
Domain of the function is the set of all possible x values which a function can take.
Range of the function is the set of all output values or the values produced by the function.
Now, consider the provided function.
The value of x can not be a negative number because the square root of negative number is not a real number.
Thus, the domain of the function must be zero or greater than zero.
The graph of the function is shown in figure 1.
From the graph it can be observed that the values produced by that function is all real numbers greater than or equal to 0.
Therefore, the required answer is: The range of the graph is all real numbers greater than or equal to 0.
√x+3=5
[tex] \sqrt{x} + 3 = 5[/tex]
Answer:
Let's solve your equation step-by-step.
√x+3=5
Step 1: Add -3 to both sides.
√x+3+−3=5+−3
√x=2
Step 2: Solve Square Root.
√x=2
x=22(Square both sides)
x=4
Check answers. (Plug them in to make sure they work.)
x=4(Works in original equation)
Answer:
x=4
Rectangle WXYZ is dilated with center (0,0) and scale factor 3/2, then reflected over the x-axis.Which are the coordinates of the point in the transformed image that corresponds to vertex W?
Hint: W (1, -2) Scale factor of 3/2 = 1.5 Multiply the point by 1.5 to find the new point. Then reflect over the x-axis.
(Answer choises in pictures.)
Answer:
A. [tex](\frac{3}{2},3)[/tex]
Step-by-step explanation:
The mapping for a dilation with center (0,0) scale factor [tex]k[/tex] is
[tex](x,y)\to (kx,ky)[/tex]
Also a reflection over the x-axis has the mapping
[tex](x,y)\to (x,-y)[/tex]
A dilation with center (0,0) scale factor [tex]\frac{3}{2}[/tex] followed by a reflection over the x-axis will yield.
[tex]W(1,-2)\to (\frac{3}{2}\times1,\frac{3}{2}\times -2)\to W'(\frac{3}{2},3)[/tex]
The correct choice is A.
Rectangle WXYZ is dilated with center (0,0) and scale factor 3/2, then reflected over the x-axis to get W"(3/2, 3)
What is transformation?Transformation is the movement of a point from its initial location to a new location. Types of transformation are reflection, translation, rotation and dilation.
W has coordinate at W(1, -2). If a dilation of 3/2 is done, the new point is W'(3/2, -3). If it is reflected over the x axis, the point is at W"(3/2, 3)
Rectangle WXYZ is dilated with center (0,0) and scale factor 3/2, then reflected over the x-axis to get W"(3/2, 3)
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In Brooke’s class of 25 students, 15 students report that math is their favorite class and 40% of the students report that science is their favorite class. Do students prefer math or science
Answer:
The students prefer Math 60%, to Science 40%
Step-by-step explanation:
15/25= 3/5= 5 is then divided into 3 to get the per cent= 60%
Plz help me i need it
Answer: [tex]\bold{b)\quad y=\dfrac{log_4-9}{2}}[/tex]
Step-by-step explanation:
Inverse is when you swap the x's and y's and solve for y.
[tex]y=4^{2x+9}\\\\\text{Swap the x's and y's:}\\x=4^{2y+9}\\\\\text{Apply }log_4\text{ to both sides:}\\log_4x=log_44^{2y+9}\\\\log_44\text{ cancels out:}\\log_4x=2y+9\\\\\text{Subtract 9 from both sides:}\\log_4x-9=2y\\\\\text{Divide both sides by 2:}\\\dfrac{log_4x-9}{2}=y[/tex]
What are the x intercepts of the equation function? Y=x^2+2x-1
Answer:
(-1 + √2) and (-1 - √2)
Step-by-step explanation:
Given in the question the equation
y = x² + 2x - 1
To find the x-intercept, substitute in 0 for y
0 = x² + 2x - 1
To find value of x use quadratic equation
x = -b ± √b²-4ac / 2a
here a = 1
b = 2
c = -1
x1 = -2 + √2²-4(1)(-1) / 2(1)
= -2 + 2√2 / 2
= -1 + √2
x2 = -2 - √2²-4(1)(-1) / 2(-1)
= -2 - 2√2 / -2
= -1 - √2
Dana colored 1/6 of her picture,and Brendan colored 1/4 of his picture.Who Coloed more?
Answer:
Brenden colored more.
Explanation:
1
6
,
1
4
=
4
1
24
6
,
6
1
24
4
∴
1
4
>
1
6
Wouldn’t it be 1/25 because you just multiply
Which number is the same as ?
plz give more info
so I can help u
Answer:
what you trying to say??
Step-by-step explanation:
which of the following does not show a line of reflection for A and A'
Answer:
last one maybe
Step-by-step explanation:
A and A' does not mirror the image with reference to the given Line.
What are coordinates?A pair of numbers called coordinates are used to locate a point or a form in a two-dimensional plane. The x-coordinate and the y-coordinate are two numbers that define a point's location on a 2D plane.
Given Two cartesian planes and we need to calculate if Points A and A' are mirror images with respect to the given reference line,
For graph 1,
Since the Given line is horizontal the normal distance between Point A and point A' is observable,
In our case,
Distance from point A to the line = Distance from A' to the line = 1 unit.
For graph 2,
Since the Given line is horizontal the normal distance between Point A and point A' is observable,
In our case,
Distance from point A to the line = 6 units
Distance from A' to the line = 3 units
Thus, A and A' does not mirror the image with reference to the given Line.
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Which number(s) below belong to the solution set of the equation? Check all that apply. x+25=50
A). 500
B). 40
C). 25
D). 30
E). 5
F). 75
C is the only reasonable choice as the other don’t add up the 50
The solution set of the given linear equation in one variable x + 25 = 50 is 25.
What is the linear equation in one variable?The linear equations in one variable is an equation which is expressed in the form of ax + b = 0, where a and b are two integers, and x is a variable and has only one solution.
What is the solution of the equation?The solution of an equation is the set of all values that, when substituted for unknowns, make an equation true.
According to the given question.
We have a linear equation in one variable
[tex]x+25 = 50[/tex]
Solve the above equation for x.
[tex]\implies x + 25 = 50\\\implies x = 50 -25\\\implies x = 25[/tex]
Therefore, the solution set of the given linear equation in one variable x + 25 = 50 is 25.
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Can someone help me out with my algebra one
Answer:
y = (-1)*2^(x + 1)
Step-by-step explanation:
This one is not a line. It is something raised to a power. In addition, there is an ugly minus sign somewhere.
First of all, every answer is some sort of power of 2. All of them are 2^x but we don't exactly know how x words. It is not a simple y = 2^x because the first one is - 4 not - 2.
So there is an extra power somehow.
Try
y = 2^(x + 1) That looks promising
x = 1
y = 2^(1 + 1)
y = 2^2
y = 4
===============
Try another one
x = 2
y = 2^(2 + 1)
y = 2^3
y = 8
==============
I think you'll find that the other two are well behaved. and come to the answer (except for the minus) as they should.
What about that minus.
y = (-1)*2^(x + 1) should give a minus y value for any term.
22.....................
Answer:
a=11,b=7
Step-by-step explanation:
To get to the result we firs multiply the figures on the left hand side.
multiplication of each term with its similar term is shown:
5×-4=-20
x⁷ₓx⁴=x¹¹. Here we add the powers because we are multiplying indices to the same base.
y²ₓ y⁵= y⁷
Thus the correct answer is a=11 and b=7
Answer:
[tex]a=11,b=7[/tex]
Step-by-step explanation:
The given equation is
[tex](5x^7y^2)(-4x^4y^5)=-20x^ay^b[/tex]
Recall that [tex]a^m\times a^n =a^{m+n}[/tex]
We simplify the left hand side to obtain;
[tex]-20x^{7+4}y^{2+5}=-20x^ay^b[/tex]
This implies that;
[tex]-20x^{11}y^{7}=-20x^ay^b[/tex]
Comparing exponents, we have
a=11,b=7
The first choice is correct.
When you multiply a number by 10,100,1,000 and so forth do you move the decimal point to the left or to the right as many places as there are zero in the multiplier
Answer:
right
Step-by-step explanation:
You would move it towards the right because that adds a place value while moving it to the left takes away a place value.
When you multiply a number by powers of 10, the decimal point moves to the right as many places as there are zeros in the multiplier. For example, multiplying 1.2 by 10 gives 12, because the decimal point moves one place to the right.
Explanation:In mathematics, when you multiply a number by 10, 100, 1,000, and so forth (powers of 10), you move the decimal point to the right as many places as there are zeros in the multiplier. This is because you are increasing the value of the number by a factor of 10 for each move to the right.
For instance, if you multiply 1.2 by 10, the result is 12. The decimal point has moved one place to the right because there is one zero in 10. If you multiply 1.2 by 1,000, the result is 1,200. The decimal point has moved three places to the right because there are three zeros in 1,000.
This understanding makes it easier to handle multiplication of numbers by powers of 10. But remember, this only applies when multiplying. When dividing, the decimal point moves to the left.
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What is the interquartile range of the data set
There are many methods of doing this. This one finds the median; however, instead of halving, you can use quarters instead.
First order the data, ascendingly:
10, 17, 18, 18, 18, 20, 20, 25, 25, 30, 30
Find the median:
For an even number of values: The number of values / 2
For an odd number of values: The number of values + 1 / 2
11 is odd.
11 + 1 / 2
12 / 2 = 6
The median is at the 6th position.
10, 17, 18, 18, 18, 20, 20, 25, 25, 30, 30
The median is 20.
Other method:
You don't need this step.
Using the values lower than the median, exclusive, find the median of the lower values;
For an odd number of values: The number of values + 1 / 2
10, 17, 18, 18, 18
5 + 1 / 2 = 6 / 2 = 3
The median of the lower values is at position 3.
This is the lower quartile.
10, 17, 18, 18, 18
Other method:
For an odd number of values: The number of values + 1 / 4
11 + 1 / 4 = 12 / 4 = 3
10, 17, 18, 18, 18, 20, 20, 25, 25, 30, 30
Using the values greater than the median, exclusive, find the median:
For an odd number of values: The number of values + 1 / 2
20, 25, 25, 30, 30
5 + 1 / 2 = 6 / 2 = 3
The median of the upper values is at position 3.
20, 25, 25, 30, 30
This is 25.
This is the upper quartile.
Other method:
For an odd number of values: (The number of values + 1 / 4) * 3
(11 + 1 / 4) * 3 = (12 / 4) * 3 = 3 * 3 = 9
10, 17, 18, 18, 18, 20, 20, 25, 25, 30, 30
Your interquartile range is 3 - 25
25 - 3 = 21
21Alex and Sean have 53 quarters,41 dimes and 16 nickels in a jar. if they donate 3 quarters,6 dimes and 1 nickel to charity, how much money will Alex and Sean have left.
They will have $16.75 left.
Find the volume of the figure: a cone with a square pyramid of the same height cut out. The pyramid has height l, and its square base has area l2.
Answer:
The volume of the figure is [tex]\frac{l^{3}}{3}[\frac{1}{2}\pi-1]\ units^{3}[/tex]
Step-by-step explanation:
we know that
The volume of the figure is equal to the volume of the cone minus the volume of the square pyramid
step 1
Find the volume of the cone
The volume of the cone is equal to
[tex]V=\frac{1}{3}\pi r^{2} h[/tex]
we have
[tex]r=l\frac{\sqrt{2}}{2}\ units[/tex]
[tex]h=l\ units[/tex]
substitute
[tex]V=\frac{1}{3}\pi (l\frac{\sqrt{2}}{2})^{2}l[/tex]
[tex]V=\frac{1}{3}\pi (\frac{l^{3}}{2} )[/tex]
[tex]V=\frac{1}{6}\pi (l^{3})\ units^{3}[/tex]
step 2
Find the volume of the square pyramid
[tex]V=\frac{1}{3}Bh[/tex]
we have
[tex]B=l^{2}\ units^{2}[/tex]
[tex]h=l\ units[/tex]
substitute
[tex]V=\frac{1}{3}(l^{2})l[/tex]
[tex]V=\frac{1}{3}(l^{3})\ units^{3}[/tex]
step 3
Find the difference
[tex]\frac{1}{6}\pi (l^{3})-\frac{1}{3}(l^{3})=\frac{l^{3}}{3}[\frac{1}{2}\pi-1]\ units^{3}[/tex]
College Algebra hw. Need help, don’t understand it, can someone explain this to me step-by-step?
55, 57, and 58 ONLY
Answer:
1, 9 and 12
Step-by-step explanation:
55
(f ○ g )(2) = f(g(2) ← from table g(2) = 3, thus
f(g(2)) = f(3) = 1 ← from table f(3) = 1
57
(g ○ f )(3) = g(f(3)) = g(1) = 9
58
(g ○ f )(6) = g(f(6)) = g(9) = 12
59
(f ○ f)(4) = f(f(4)) = f(3) = 1
Can I get help on this please
the range is the x values. so the answer would be c
Find the value of x round the length to the nearest tenth. The diagram is not drawn to scale.
Please show all steps.
The measure of side length x to the nearest tenth is approximately 2879.4 meters.
What is the measure of the hypotenuse x?The figure in the image is a right triangle.
From the figure;
Angle θ is the complement of the given angle.
Ange θ = 90 - 10 = 80 degrees
Adjacent to angle θ = 500 m
Hypotenuse = x
To solve for the hypotenuse of the right triangle, we use the trigonometric ratio:
Note that;
cosine = adjacent / hypotenuse
Hence;
cos( θ ) = adjacent / hypotenuse
Plug in the values:
cos( 80 ) = 500 / x
Solve for x:
x × cos( 80 ) = 500
x = 500 / cos( 80 )
x = 2879.4 m
Therefore, the value of x is 2879.4 meters.
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Kate is 10 years older than her Brother. In three years time, she will be twice as old as her Brother. Find their present age.
Can anyone help me with this question , I’m really weak in Age question.
Step-by-step explanation:
Let kate age be x
and Her brother age be x - 10
according to equation
x + 3 = 2(x-10+3)
x + 3 = 2x - 14
2x - x = 14 + 3
x = 17
Therefore ;
Kate's present age = 17
Her brother's present age = 17-10 = 7
The difference of a and b is?
-always rational
-sometimes rational
-never rational
The product of a and b is ?
- always rational
- sometimes rational
- never rational
the square root of ab is?
- always rational
- sometimes rational
- never rational
Answer:
sometimes
sometimes
sometimes
what is equivalent to 16 + (48 - 12) \ 6 - 5 * 2