Answer:
B
Step-by-step explanation:
7/20 x 1/2 x 1/6
Find the distance across the lake. Assume the triangles are similar.
Answer:
210
Step-by-step explanation:
70/5=L/15
70/5=14
14×15=L
L=210
please help
I don't know what im supposed to do.
Answer:
Step-by-step explanation:
You did not post any question and I just retrieved all possible information from whatever is given.
there are three brothers amir balu and caleb. Amirs age is half of calebs and balus age is 3/4 of calebs. In five years the sum of Amir's age and Balus age will be 16 more than Calebs age How old is each brother now.
The age of the brothers Caleb, Amir and Balu is 44 years, 22 years, and 33 years respectively.
What is Equation?An equation is a mathematical statement with an 'equal to=' symbol between two expressions that have equal values.
Here, Let the age of the Caleb's be x years.
then age of Amir's be x/2 years.
also age of Balu's be 3x/4 years.
In 5 years,
Caleb's age = (x+5) years
Amir's age = (x/2 + 5) years
Balu's age = (3x/4 + 5) years
Now, According to question;
Amir's age + Balu's age = 16 + Caleb's age
(x/2 + 5) + (3x/4 +5) = 16 + (x + 5)
x/2 + 3x/4 - x = 16 + 5 - 5 - 5
(2x + 3x - 4x)/4 = 11
x/4 = 11
x = 4 X 11
x = 44
Now, Caleb's age = 44 years
Amir's age = 44/2 = 22 years
Balu's age = 3X44/4 = 33 years
Thus, the age of the brothers Caleb, Amir and Balu is 44 years, 22 years, and 33 years respectively.
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Find the measure of the reference angle for an 11 radian
radian angle.
Answer:
about 1.56637 radians ≈ 89.746°
Step-by-step explanation:
The reference angle in radians can be found by the formula ...
ref angle = min(mod(θ, π), π -mod(θ, π))
Equivalently, it is ...
ref angle = min(ceiling(θ/π) -θ/π, θ/π -floor(θ/π))×π
ApplicationWhen we divide 11 radians by π, the result is about 3.501409. The fractional part of this quotient is more than 1/2, so the reference angle will be ...
ref angle = (1 -0.501409)π radians ≈ 1.56637 radians ≈ 89.746°
__
Additional comment
For calculations such as this, you need to use the most accurate value of pi available. The approximations 22/7 or 3.14 are not sufficiently accurate to give good results.
 GEOMETRY)
In the figure, chords AB and CD intersect at E. If the measure of arc AC is 30 degrees and the m angle DEB=80^o , then find the degree measure of arc DB
Enter just a number for your answer
(Picture is below) thank you!
Answer: 130
Step-by-step explanation:
Let the measure of arc DB be x.
Then,
[tex]80=\frac{x+30}{2}\\\\160=x+30\\\\x=130[/tex]
Consider the function.
Match each transformation of f(x) with its description.
stretches f(x) by a factor
of 4 away from the x-axis
shifts f(x) 4 units down
shifts f(x) 4 units right
compresses f(x) by a factor
of toward the y-axis
The correct options are:
a) g(x) = 8*x - 6
b) g(x) = 2x - 10
c) g(x) = 2x - 14
d) g(x) = 8x - 24
How to identify each transformation?Here we have the function:
f(x) = 2x - 6
The proposed transformations are:
a) Stretch by a factor of 4 along the x-axis.
A horizontal stretch of scale factor k is written as:
g(x) = f(x*k).
Then, in this case, we have:
g(x) = 2(x*4) - 6 = 8*x - 6
b) Shift f(x) 4 units down.
A vertical shift of N units is written as:
g(x) = f(x) + N
A shift of 4 units down is written as:
g(x) = f(x) - 4 = 2x - 6 - 4 = 2x - 10
c) Shift f(x) 4 units right.
An horizontal shift of N units is written as:
g(x) = f(x + N).
For a shift of 4 units to the right, we write:
g(x) = f(x - 4) = 2(x - 4) - 6 = 2x - 8 - 6 = 2x - 14
d) A vertical compression of scale factor 1/4.
A vertical compression of scale factor K is written as:
g(x) = f(x)/K
In this case, we will have:
g(x) = f(x)/(1/4) = 4*f(x) = 4*(2x - 6) = 8x - 24
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how many ways are there to distribute 11 identical candies between 4 children such that each child receives at least 2 candies
There are 15 / 2 ways to distribute 11 identical candies between 4 children such that each child receives at least 2 candies.
If we give child A four candies and so we were left with 9 candies.
In addition, we will take child A away from consideration to ensure he received exactly four candies, and thus we were left with 9 dots and 2 slashes, separating the 4 remaining distinct children.
So the possible ways are: (11 + 4 / 2) = (15 / 2).
Problem-solving is the act of defining a problem; determining the purpose of the trouble; figuring out, prioritizing, and selecting alternatives for an answer; and imposing a solution.
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Area=
Help me please!! Thanks
The area of square LMNP is 50
What is a circle?A circle is the locus of points equidistant from a fixed point which is known as the center of the circle.
A circle is defined if the center and the radius is known.
Analysis:
Perimeter of a circle = 2πr
Given perimeter = 10π
2πr = 10π
2r = 10
r = 10/2 = 5
r = MO
so the diagonal of the square is actually the diameter of the circle = 5+5 = 10
To find the side, x of the square the diagonal and the sides form a right-angled triangle, by Pythagoras, [tex]10^{2}[/tex] = [tex]x^{2}[/tex] + [tex]x^{2}[/tex]
2[tex]x^{2}[/tex] = 100
[tex]x^{2}[/tex] = 100/2 = 50
Also area of square is [tex]x^{2}[/tex] = 50
In conclusion, the area of square LMNP is 50
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Simplify the following expressions.
The simplified expression for the following expression are:
7a + 3a - 2a + 5a = 13a0.7 - 0.3g - 0.02g + 5 = 5.7 - 0.32g5g² + 3g - 4g + 5g² = 10g² - gSimplification7a + 3a - 2a + 5a
= 15a - 2a
= 13a
0.7 - 0.3g - 0.02g + 5
= 5.7 - 0.32g
5g² + 3g - 4g + 5g²
= 10g² - g
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(LOOK AT IMAGE)
The sides of a regular 12-sided polygon have been extended to make a star, as shown below.
Calculate the size of angle x.
Give your answer in degrees (°).
Answer: 120
Step-by-step explanation:
The interior angle of the 12-sided polygon is
[tex]\frac{180(12-2)}{12}=150^{\circ}[/tex]
So, if we consider the triangle with angle x, two of its angles are each [tex]30^{\circ}[/tex] since they are supplementary to the interior angle of the 12-sided polygon.
Therefore, as angles in a triangle add to 180 degrees, x=120.
Triangle ABC has vertices A(–2, 3), B(0, 3), and C(–1, –1). Find the coordinates of the image after a reflection over the x-axis.
A’
B’
C’
The coordinates of the image after a reflection over the x-axis are A(-2,3) ,B(0,3), and (-1,1).
Given The coordinates of the triangle ABC are A(-2,3) B (0,3) and C(-1,-1).
We know that the coordinates of x axis used to be positive in first and fourth quadrant. The coordinates of y axis used to be positive in second and first quadrant. The coordinates of x axis are to be negative in second and third quadrant. The coordinates of y-axis used to be negative in third and fourth quadrant.
We have to reflect the triangle over x-axis so the values of y-axis needs to be positive. So we need to just convert the coordinates of y to positive numbers which will make the coordinates as under:
A (-2,3) will not change because it is already positive.
B(0,3) will not change as it is is also positive.
C(-1,-1) will change to (-1,1)
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Answer: a (-2,-3) b (0,-3) c (-1,1)
Step-by-step explanation: how is the other person verified if there wrong.
Please help!! I have been stuck on this question for a while
Answer:
[tex]180\ in.^2[/tex]
Step-by-step explanation:
The area of a rectangle can is defined as [tex]A = wl[/tex] where w is the width and l is the length. The width in this case is 12 and the length is 15. Also it doesn't really matter what order you put it in. This gives you an area of [tex](15\ in.) (12\ in.) = 180\ in.^2[/tex]
What are the solutions of the equation x4 3x2 2 = 0? use u substitution to solve.
The solution of the equation is x=±i or x=±i√2.
Given that the equation is x⁴+3x²+2=0 and use u substitution method to solve.
We can rewrite our given equation as:
(x²)²+3x²+2=0
Let's assume that the (x²)=u.
The given equation is rewritten as u²+3u+2=0.
Factorize the quadratic equation by adding or subtracting two number that gives the sum of 3u and product 2u² as
u²+2u+u+2=0
u(u+2)+1(u+2)=0
Taking out (u+2) as common and get
(u+2)(u+1)=0
Compare each equation with 0 and get
u+2=0 or u+1=0
u=-2 or u=-1
Performing back substitution by substituting the values of u in x²
when u=-1 then x is
x²=-1
x=±√(-1)
As we know that √(-1)=i.
So, we get
x=±i
And when u=-2 then x is
x²=-2
x=±√(-2)
As we know that √(-1)=i.
So, substituting this, we get
x=±i√2
Hence, the solutions of the x⁴+3x²+2=0 is x=±i and x=±i√2.
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An independent group of food service personnel conducted a survey on tipping practices in a large metropolitan area. They collected information on the percentage of the bill left as a tip for 35 randomly selected bills. The average tip was 14.2% of the bill with a standard deviation of 2.5%. Assume that the tips are approximately normally distributed. Construct an interval to estimate the true average tip (as a percent of the bill) with 99% confidence. Round the endpoints to two decimal places, if necessary.
An interval to estimate the true average tip is (14.62,13.78).
According to statement is
we know that the
confidence interval = sample mean ± standard deviation /(n)^1/2
substitute the values in it then
confidence interval = 14.2 ± 2.5/(35)^1/2
confidence interval = 14.2 ± 2.5/5.91
confidence interval = 14.2 ± 0.42
confidence interval = 14.2 + 0.42 , confidence interval = 14.2 - 0.42
confidence interval = (14.62,13.78)
So, an interval to estimate the true average tip is (14.62,13.78).
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How would you describe a transformation to someone who has never taken geometry before? Explain what a transformation is, and state how a transformation can be used to solve a problem in real life.
Transformation is the movement of a point from its initial location to a new location. Dilation can be used to scale down a map so that it can be plotted on a paper.
What is a transformation?Transformation is the movement of a point from its initial location to a new location. Types of transformation are translation, rotation, reflection and dilation.
Dilation is the increase or decrease in the size of a figure.
Dilation can be used to scale down a map so that it can be plotted on a paper.
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Label the vertices and all the elements needed. find x. give reasons!
The value of x which is the missing angle of the triangles is; x = 30°
How to find the missing angles of a triangle?We know that Alternate angle theorem states that when two parallel lines are cut by a transversal, then the resulting alternate interior angles or alternate exterior angles are congruent.
Thus, if we label the vertex with the unknown angle in the smaller triangle as A, then by the alternate angle theorem, we can say that;
∠A = 2x
Thus, from sum of angles in a triangle equals to 180°, we can say that;
x + 2x + 90 = 180
3x + 90 = 180
3x = 180 - 90
3x = 90
x = 90/3
x = 30°
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A diagonal matrix has the elements shown below.
211 = 16
a22-8.7
233= 5.4
a44 1.3
255=-6.9
Which is the diagonal matrix containing these elements?
16 -3.7 6 1.7 -8.8
0
-8.7 -4.14 1 7
0
0
5.4 -9 -3
0
0
0
1.3 5
0
0
0
0 -6.9
The diagonal matrix that has these values would be:
16 0 0 0 0
0 -8.7 0 0 0
0 0 5.4 0 0
0 0 0 1.3 0
0 0 0 0 -6.9
What is a diagonal matrix?This is the type of matrix that is written in the form where all of the entries that are outside the diagonal are zeros.
The diagonal is a line that divides a triangle into two halves. The diagonal here has all of the digits. Outside it are all zero elements.
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Answer:
C is the correct answer
Explanation:
Hope you have a great day!
I need this done urgently!
Answer:
1)65.9
2)326.6
3)13.6
4)8.0
Step-by-step explanation:
The trick is always to look at the number after the first decimal for rounding to 1 decimal place, if its above 5, you round it up to the next decimal; eg. 13.45 = 13.5 because the 5 will round it up,and if value below 5, you round it down; eg. 12.34 = 12.3 because the 4 is below 5 and the nearest 10th decimal is 3.
The functions f(x) and g(x) are described using the following equation and table:
f(x) = −4(1.09)x
x g(x)
−4 −10
−2 −7
0 −4
2 1
Which equation best compares the y-intercepts of f(x) and g(x)?
The value of the y-intercepts of f(x) and g(x) is f(0), g(0) which gives -4.
What is an equation?An equation is an expression that shows the relationship between two or more variables and numbers.
The y intercept of an equation is the value of the function when x = 0.
Given that f(x) = -4(1.09)ˣ
f(0) = -4(1.09)⁰ = -4
From the table of g(x), when x = 0, g(0) = -4
The value of the y-intercepts of f(x) and g(x) is f(0), g(0) which gives -4.
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If Elon and Jeff work together, they can finish the work in 3 hours. If Jeff works together with Bruce, they can make this work done in 6 hours. Elon and Bruce can finish this work in 4 hours. How much time would it take to finish the work if all three worked together?
Answer:
It would take 1.5 hours for all three to finish the work if they worked together.
Step-by-step explanation:
Elon and Jeff can complete the work in 3 hours.
Jeff and Bruce can complete the work in 6 hours.
Elon and Bruce can complete the work in 4 hours.
3 + 6 + 4 = 13
13 / 3 = 4.33
4.33 / 3 = 1.44
The graph of the quadratic function
g(x) = x² + 4 is shown.
17
8
gix
2
Domain:
Range:
7
T
O
For
The range of the given quadratic function is from x(-4,0 ) y(0,4 ) to x(4,0).
What is the range?
A function's range is the collection of values it can take as input. After we enter an x value, the function outputs this sequence of values. The domain of the function is defined as the set of all the possible values of the function.
Here in the graph of the function g(x) = ( -1/4)x + 4 the range of the function is from ( -4,0 ) to (4,0) at x-axis and ( 0,4) to y-axis we can see in the graph.The domain of the function is defined as the set of all the possible values of the function.
Therefore the range of the given quadratic function is from x(-4,0 ) y(0,4 ) to x(4,0).
The complete question is given below:-
what is the range and domain of the function g(x) = ( -1/4)x + 4?
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3 multiply by what is equal to 30 plus what
Call the hidden variable here "x"
3x = 30 + x
3x - (30 + x) = 0
3x - 30 - x = 0
2x - 30 = 0
x = 30 : 2 = 15
Recheck : 3 x 15 = 30 + 15 -> 45 = 45 (true)
HELP PLEASE!! x3-3x2-10x+24 by x-2. fill into other equation
The solution to the division of the given polynomial expression is:
k = (x+3)(x-4)
Division of polynomialsThe division of the given polynomial can be determined by using the rational root theorem which is a method that is popularly used in determining the solutions to a polynomial equation.
From the information given:
[tex]\mathbf{\dfrac{x^3 -3x^2 - 10x +24}{x-2}}[/tex]
Using the rational root theorem;
[tex]\mathbf{\dfrac{(x-2) \dfrac{x^3 -3x^2 - 10x +24}{x-2} }{x-2}}[/tex]
[tex]\mathbf{\dfrac{(x-2)(x^2 -x-12)}{x-2} }}[/tex]
Factor: x² - x - 12
[tex]\mathbf{\dfrac{(x-2)(x+3)(x-4)}{x-2} }}[/tex]
Cancel out the common factor (x-2)
[tex]\mathbf{=(x+3)(x-4) }}[/tex]
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Complete the equation of the line through (-6,-5)(−6,−5)left parenthesis, minus, 6, comma, minus, 5, right parenthesis and (-4,-4)(−4,−4)left parenthesis, minus, 4, comma, minus, 4, right parenthesis.
Use exact numbers.
y=y=y, equals
Answer:
y = 1/2 x -2
Step-by-step explanation:
rise/run from (-6, -5) to (-4, -4) = 1/2
(rise 1, run 2)
meaning that slope (m) = 1/2
we can now rewrite our points in y=mx + b formatting:
y = mx + b
-5 = (1/2)(-6) + b
-4 = (1/2)(-4)+b
now, let's solve for b
-5 = (1/2)(-6) + b
-5 = -3 + b
-2 = b
-4 = (1/2)(-4)+b
-4 = -2 + b
-2 = b
So, the equation for our line is y = [tex]\frac{1}{2}[/tex] x- 2
hope this helps!! have a lovely day :)
Answer: y = 1/2x - 2
Step-by-step explanation: it’s right on khan academy (picture for proof)
4% of ? Is $75 what is ? If the question
Answer:
1750
Step-by-step explanation:
Each container will be made of a material that costs $0.0015 per square inch. Explain how to determine the coat of each container. Then find the cost of Container b. Round to the nearest cent.
Answer:
Find total surface area. Multiply material unit cost by the total surface area.
Step-by-step explanation:
To find the cost of a container, you must first find the total surface area of the container. Then since you are given the unit cost for the material, you multiply the total surface are by the unit cost ($0.0015/in.²).
Does anyone know the answer? Please help.
Answer:
(0,-2)
Step-by-step explanation:
the answer is (0,-2) because -2 is where the line crosses over the y-axis. If we looked at a graph you would see that the line goes over 0 on the X-axis, which causes the line to touch the y-axis and intercept it at the -2 mark.
An easy way to find the answer for these sorts of questions is to draw out a graph and mark the coordinates on it and draw the line conecting them. Once you've done that you can easily see where the line intercepts on both the y and x axis.
Answer:
(0,-2)
please put brainliest
How do I decide if it’s a real solutions or extraneous solutions?
Step-by-step explanation:
So you can check for extraneous solutions by plugging in the 5 and -2 as x.
Plug 5 in as x
[tex]5=\sqrt{3(5)+10}\\5=\sqrt{15+10}\\5=\sqrt{25}\\5=5[/tex]
I'm not sure if this is exactly considered an extraneous solution, but I'm assuming it is, since technically the radical doesn't have a plus/minus in front of it, so it's the principle square root which means it only outputs the positive values. This would mean that the -2 wouldn't be a solution, since the principle square root doesn't output negative values, so it's a function, since if it outputted 2 values, then it wouldn't be a function by definition.
i will give brainlyest if you write it in complete sentences and if correct , fr
Answer:
Search it up ok ,that's all you can do
Triangle A B C is shifted to the left to form triangle A prime B prime C prime. Triangle A prime B prime C prime is then dilated to form larger triangle A double-prime B double-prime C prime.
Determine the similarity transformations that verify △ABC ~ △A''B''C'.
The first transformation mapping △ABC to △A'B'C' is a
.
The second transformation mapping △A'B'C' to △A''B''C' is a
.
Similarity transformations involve two types of transformations required to map a given object onto a similar object without a change in its dimensions. Thus the answers required are:
a. Similarity transformations - translation and dilation.
b. The first transformation is translation.
c. The second transformation is dilation.
Transformation is a process required to change the size or orientation of a given shape to form an image. The types are reflection, translation, rotation, and dilation.
i. Reflection is a type of rigid transformation in which a given shape is flipped about a given point or line.
ii. Translation involves moving a given shape in a certain direction without a change in its initial orientation.
iii. Rotation is a type of rigid transformation where a shape is turned about a given point or line at a required angle.
iv. Dilation is a process that requires either increasing or decreasing the dimension of a given shape.
Also, similarity transformations involve two types of transformations required to map a given object onto a similar object without a change in its dimensions.
The appropriate answers to the given question are:
a. similarity transformations - translation and dilation
b. The first transformation is translation.
c. The second transformation is dilation.
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