Answer:
0.15 of a walk
Step-by-step explanation:
2/60 =0.15
Therefore you can walk 0.15 of a walk(so confused lol)
Solve the simple equation. Show all your work.
\(z - \frac{3}{4} = -\frac{1}{3}\)
The solution of the given linear equation is 5/12.
What is termed as linear equation in one variable?The basic equation which used symbolize and contribute to solving for an unknown quantity is a linear equation in one variable. It is constantly a straight line and can be conveniently represented graphically.
Unknown quantities can be represented by any variable or symbol, but in most cases, a variable 'x' is employed to portray the unknown value in a linear equation with one variable. A linear equation can be solved using a variety of simple methods. To determine the final value for the unknown quantity, the variables are separated on one side of the equation as well as the constants are isolated on the other.Now, as per the stated question;
z - 3/4 = -1/3
Bring the constant value on one side and variable on other side.
z = -1/3 + 3/4
Taking LCM on the right side.
z = (-4 + 9)/12
Further simplifying;
z = 5/12
Therefore, the value of the variable 'z' is found as 5/12.
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Use long division to find the quotient below.
(4x² - 7x-2) + (x-2)
Answer:
4x+1
Step-by-step explanation:
\((4x^2-7x-2)\div(x-2)= \\\\(x-2)(4x+1)\div(x-2)= \\\\4x+1\)
Hope this helps!
For all values of x, f(x) = 2x-3 and g(x) = x^2 + 1 a) Find fg(x) Simplify and give your answer in the form ax^2 + b b) Find gf(x).
Answer:
fg(x) = 2x² - 1
gf(x) = 4x²-12x +10
Step-by-step explanation:
Given the functions f(x) = 2x-3 and g(x) = x^2 + 1
a) f(g(x)) = f(x²+1)
f(x²+1) = 2(x²+1) -3
f(x²+1)= 2x²+2 -3
f(x²+1) = 2x² - 1
fg(x) = 2x² - 1
Hence function fg(x) is 2x² - 1
b) gf(x) = g(2x-3)
g(2x-3) = (2x-3)² + 1
g(2x-3) = (2x-3)(2x-3) + 1
g(2x-3) = 4x²-6x-6x+9 + 1
g(2x-3) = 4x²-12x +10
gf(x) = 4x²-12x +10
a cone-shaped container has a height of 9 inches and diameter of 2.5 inches. it is filled with a liquid that is worth $2 per cubic inch. what is the total value of the liquid in the container?
The total value of the liquid in the cone-shaped container is $244.09.
To find the total value of the liquid in the container, we first need to calculate the volume of the cone. The formula for the volume of a cone is V = (1/3) * π * r^2 * h, where r is the radius and h is the height. Given that the diameter is 2.5 inches, the radius (r) is half of the diameter, which is 1.25 inches. Plugging in the values, we get V = (1/3) * 3.14 * 1.25^2 * 9 = 35.04 cubic inches.
Since the liquid is worth $2 per cubic inch, we can calculate the total value by multiplying the volume by the price per cubic inch: $2 * 35.04 = $70.08. Therefore, the total value of the liquid in the cone-shaped container is $70.08.
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(10-1)(10-2)(10-3)(10-10)
Answer:
0
Step-by-step explanation:
(10-1=9)(10-2=8)(10-3=7)(10-10=0)
9*8*7*0=0
What is the first step you would take to solve the following equation and why would you do that step first? 3(x - 5) = 6
Answer: You must start with the parentheses first because you have to leave the x by itself.
Step-by-step explanation:
That means it would be turned into 3(-5x) =6.
what is the 4 digit code
Answer:
Try 4321
Step-by-step explanation:
If its not right lmk
If it is can I get brainliest pls
how to find eigenvalues and eigenvectors of a 2x2 matrix
To find the eigenvalues and eigenvectors of a 2x2 matrix, follow these steps:
Calculate the characteristic equation by subtracting the identity matrix I multiplied by the scalar λ from matrix A, and set the determinant of this resulting matrix equal to zero. The characteristic equation is given by det(A - λI) = 0.Solve the characteristic equation to find the eigenvalues (λ).
Let's assume we have a 2x2 matrix A:
| a b |
A = | c d |
To find the eigenvalues, we need to calculate the characteristic equation:
det(A - λI) = 0,
where I is the 2x2 identity matrix and λ is the eigenvalue.
A - λI = | a-λ b |
| c d-λ |
The determinant of this matrix is:
(a-λ)(d-λ) - bc = 0,
which simplifies to:
λ² - (a+d)λ + (ad - bc) = 0.
This quadratic equation gives us the eigenvalues.
Solve the quadratic equation to find the values of λ. The solutions will be the eigenvalues.
Once you have the eigenvalues, substitute each value back into the equation (A - λI)v = 0 and solve for v to find the corresponding eigenvectors.
For each eigenvalue, set up the homogeneous system of equations:
(A - λI)v = 0,
where v is the eigenvector.
Solve this system of equations to find the eigenvectors corresponding to each eigenvalue.
To find the eigenvalues and eigenvectors of a 2x2 matrix, follow the steps mentioned above. The characteristic equation gives the eigenvalues, and by solving the corresponding homogeneous system of equations, you can determine the eigenvectors.
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not every linearly independent set in set of real numbers r superscript ℝn is an orthogonal set. T/F?
The given statement is true.
Consider linearly independent vectors of \(R_{n}\)
Where n = 2
\(V = \[\begin{array}{ccc}4&\\2\end{array}\right]\)
\(U = \[\begin{array}{ccc}5&\\6\end{array}\right]\)
Now product of these vectors
UV = 4x5 + 2x6
= 32
Hence these vectors are not orthogonal.
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the equation of th a line given by y = mx + b is also called
Answer:
slope intercept form
Step-by-step explanation:
Slope intercept form
(
3
�
−
1
)
(
�
2
+
4
�
−
5
)
(3x−1)(x
2
+4x−5)
Step-by-step explanation:
u need to give the full question
When you work for 3 hours and get 46.50$ how much will you get working for 7 hours
Answer:
108.5
Step-by-step explanation:
46.50/3= 15.50
15.50 x 7=106.5
Answer:
You would get $ 108.50
Step-by-step explanation:
When you divide 46.50 by 3 you get 15.50 when you then multiply 7 by 15.50 you get 108.50
Hope this helps have a great day
What is the length of C D on a grid, C is (-5, 5) and D is (4, -2), to the nearest tenth? Iready Help ASAP
Answer:
11.4
Step-by-step explanation:
You want the distance between C(-5, 5) and D(4, -2).
DistanceThe distance formula is ...
d = √((x2 -x1)² +(y2 -y1)²)
For the given points, the distance is computed to be ...
d = √((4 -(-5))² +(-2 -5)²) = √(81 +49) = √130
d ≈ 11.4
The length of CD is about 11.4 units.
__
Additional comment
The distance formula is an application of the Pythagorean theorem. It computes the hypotenuse of a right triangle whose legs are the differences in x- and y-coordinates.
Find the point (,) on the curve =8 that is closest to the point (3,0). [To do this, first find the distance function between (,) and (3,0) and minimize it.]
Question:
Find the point (,) on the curve \(y = \sqrt x\) that is closest to the point (3,0).
[To do this, first find the distance function between (,) and (3,0) and minimize it.]
Answer:
\((x,y) = (\frac{5}{2},\frac{\sqrt{10}}{2}})\)
Step-by-step explanation:
\(y = \sqrt x\) can be represented as: \((x,y)\)
Substitute \(\sqrt x\) for \(y\)
\((x,y) = (x,\sqrt x)\)
So, next:
Calculate the distance between \((x,\sqrt x)\) and \((3,0)\)
Distance is calculated as:
\(d = \sqrt{(x_1-x_2)^2 + (y_1 - y_2)^2}\)
So:
\(d = \sqrt{(x-3)^2 + (\sqrt x - 0)^2}\)
\(d = \sqrt{(x-3)^2 + (\sqrt x)^2}\)
Evaluate all exponents
\(d = \sqrt{x^2 - 6x +9 + x}\)
Rewrite as:
\(d = \sqrt{x^2 + x- 6x +9 }\)
\(d = \sqrt{x^2 - 5x +9 }\)
Differentiate using chain rule:
Let
\(u = x^2 - 5x +9\)
\(\frac{du}{dx} = 2x - 5\)
So:
\(d = \sqrt u\)
\(d = u^\frac{1}{2}\)
\(\frac{dd}{du} = \frac{1}{2}u^{-\frac{1}{2}}\)
Chain Rule:
\(d' = \frac{du}{dx} * \frac{dd}{du}\)
\(d' = (2x-5) * \frac{1}{2}u^{-\frac{1}{2}}\)
\(d' = (2x - 5) * \frac{1}{2u^{\frac{1}{2}}}\)
\(d' = \frac{2x - 5}{2\sqrt u}\)
Substitute: \(u = x^2 - 5x +9\)
\(d' = \frac{2x - 5}{2\sqrt{x^2 - 5x + 9}}\)
Next, is to minimize (by equating d' to 0)
\(\frac{2x - 5}{2\sqrt{x^2 - 5x + 9}} = 0\)
Cross Multiply
\(2x - 5 = 0\)
Solve for x
\(2x =5\)
\(x = \frac{5}{2}\)
Substitute \(x = \frac{5}{2}\) in \(y = \sqrt x\)
\(y = \sqrt{\frac{5}{2}}\)
Split
\(y = \frac{\sqrt 5}{\sqrt 2}\)
Rationalize
\(y = \frac{\sqrt 5}{\sqrt 2} * \frac{\sqrt 2}{\sqrt 2}\)
\(y = \frac{\sqrt {10}}{\sqrt 4}\)
\(y = \frac{\sqrt {10}}{2}\)
Hence:
\((x,y) = (\frac{5}{2},\frac{\sqrt{10}}{2}})\)
Given the function f(x)=2x²+3, what is the average rate of change of f on the interval [2,2+h]?
Answer:
5.2
Step-by-step explanation:
Write the circumference of a circle with a diameter of 49 inches in terms of pi
Answer:
153.94
Step-by-step explanation:
c=2r*r
The radius is half of the diameter.
To find the radius you will divide 49 inches by 2.
You should get a total of 24.5
Now that you have your radius you are going to use the circumference formula to solve.
C= 2r*r
C=2(24.5)*(24.5)
type that into the calculator (without the parenthesis) and boom your done!
You answer should be 153.938
then you round to get a total of 153.94
I hope i was able to help!
Answer: c = 3771.481981 (decimal place) or 1200.5\(\pi\) (exact form)
Step-by-step explanation:
c = 2\(\pi\)r
c = 2 x \(\pi\) x \(24.5^{2}\)
radius = diameter divided by 2
= 49 divided by 2
= 24.5
c = 3771.481981 (decimal place) or 1200.5\(\pi\) (exact form)
A parabola can be drawn given a focus of (-5, -1) and a directrix of y=7. Write the equation of the parabola in any form.
A parabola with focus of (-5, -1) and a directrix of y=7 has the equation of the parabola as: (x + 5)² = 8 (y - 3)
How to write the equation of parabola with directrix of y = 7 and focus of (-5, -1)Quadratic equation = parabolic equation, when the directrix is at y direction is of the form:
(x - h)² = 4P (y - k)
OR
standard vertex form, y = a(x - h)² + k where a = 1/4p
The focus
F (h, k + p) = (-5,-1)
h = -5
k + p = -1
P in this problem, is the midpoint between the focus and the directrix
P = (-1 - 7) / 2 = -4
p = -4
the vertex
v(h, k)
h = -5
k + p = -1, k = 3
v(h, k) = v(-5, 3)
substitution of the values into the equation gives
(x - h)² = 4P (y - k)
(x - -5)² = 4 * 2 (y - 3)
(x + 5)² = 8 (y - 3)
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Please help me!!
Which equation is equivalent to x + 139 = 537
But where are the equations?
Answer:
You need to give us the answers
Step-by-step explanation:
A fast food restaurant executive wishes to know how many fast food meals adults eat each week. They want to construct a 90% confidence interval for the mean and are assuming that the population standard deviation for the number of fast food meals consumed each week is 1.4. The study found that for a sample of 1271 adults the mean number of fast food meals consumed per week is 3. Construct the desired confidence interval. Round your answers to one decimal place.
The confidence interval which shows 90% confidence level for the mean and assumed standard deviation is (2.94 meals, 3.0565 meals).
Given standard deviation=1.4. Sample size =1271, mean=3.
We have to find the confidence interval for 90% confidence level.
We have to find out α level that is the subtraction of 1 by the confidence interval divided by 2.
α=(1-0.90)/2
=0.05
Now we have to find z in the z table as such z has a p value of 1-α so it is z with p value of 1-0.05=0.95
Z=1.44 from z table.
Now find M as such that
M=z* st/\(\sqrt{n}\)
where st is standard deviation ,n is sample size.
M=1.44*1.4/\(\sqrt{1271}\)
=1.44*1.4/35.65
=2.016/35.65
=0.0565
Lower end= mean -M
=3-0.0565
=2.94
Upper end=Mean+ M
=3+0.0565
=3.0565
Hence the confidence interval showing 90% confidence level is (2.94,3.0565).
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Pls help I’m struggling with these ones
Answer:
z=18.8cm
Step-by-step explanation:
Pythagorean theorem:
\(a^{2} +b^{2} =c^{2}\)
with "a" being 8cm, and "b" being 17cm.
Substitute:
\(8^{2} +17^2=c^2\\64+289=c^2\\353=c^2\\\sqrt{353}=c\\ 18.788....=c\\\)
rounded to the nearest 1 decimal place= 18.8 cm.
So, z=18.8 cm.
(EDITED!!!! I'm so sorry I rounded to the wrong place!!)
Hope this helps! :)
Help. Ill give u brainly if u tell me how to solve this
Answer:
table -3,-1,1
Step-by-step explanation:
graph
Which is the graph of the linear equation y = –x?
Answer:
The correct answer is graph C.
Answer:
C)
Step-by-step explanation:
In ΔEFG, f = 86 inches, e = 64 inches and ∠E=32°. Find all possible values of ∠F, to the nearest degree.
Answer:
Answer: 45 ∘ and 135 ∘
Step-by-step explanation:
Delta Math
Which pair of triangles can be proven congruent by SAS?.
Similar triangles may or may not be congruent.
The pair of triangles that can be proved by SAS is (a) the first pair
What is congruent triangles?
Congruence of triangles: 2 triangles are same to be congruent if all 3 corresponding sides square measure equal and every one the 3 corresponding angles square measure equal in measure.
Main body:
From the attached figures, we have the following observations
Figure 1
Two sides of both triangles are congruent
The angles between the sides are corresponding
The two congruent sides represent SS
The corresponding angles imply: SAS
This means that, the first pair of triangles are congruent by SAS postulate
Figure 2
Two angles of both triangles are congruent
The triangle share a common side
The two congruent angles represent AA
The common side imply: ASA
This means that, the second pair of triangles are congruent by ASA postulate
Figure 3 and 4
All sides of both triangles are congruent
This means that, the third and the fourth pairs of triangles are congruent by SSS postulate
Hence, the pair of triangles that can be proved by SAS is (a) the first pair
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Me pueden ayudar con esta página por favor la necesito para antes de las 12:00pm
Answer:
3.72 x 10^6
5.68 x 10^5
1 x 10^6
4.3 x 10^4
7.5 x 10^7
5 x 10^-11
8.6 x 10^-3
2.7 x 10^-4
1.9 x 10^-2
6 x 10^-6
right side of page
520 000 000
8 000 000
49 000
0.000000248
0.00036
0.000007132
Step-by-step explanation:
its just moving the point.
3.72 x 10^6 you moved the point 6 times to the left so its positive.
5 x 10^-11 moved it 11 times to the right so its negative
PLEASE HELP MEEE!!! math work.
Answer:
do not k ow sorry hahaha drs kaka so zhbdbf ddb
Consider the following. x = sin(6t), y = -cos(6t), z = 18t; (0, 1, 3 pi) Find the equation of the normal plane of the curve at the given point. Find the equation of the osculating plane of the curve at the given point.
The equation of the normal plane of the curve at the point (0, 1, 3π) is -x + 6z - 18π = 0.
To find the normal plane of the curve, we first need to find the normal vector. The normal vector is the cross product of the tangent vectors, which is given by T×T', where T is the unit tangent vector and T' is the derivative of T with respect to t. The unit tangent vector is given by T = (6cos(6t), 6sin(6t), 18), and the derivative of T with respect to t is T' = (-36sin(6t), 36cos(6t), 0). Evaluating these at t = 3π, we get T = (0, -6, 18) and T' = (36, 0, 0). Taking the cross product of T and T', we get the normal vector N = (-108, -648, 0), which simplifies to N = (-2, -12, 0).
Next, we use the point-normal form of the plane equation to find the equation of the normal plane. The point-normal form is given by N·(P - P0) = 0, where N is the normal vector, P is a point on the plane, and P0 is the given point. Substituting the values, we get (-2, -12, 0)·(x - 0, y - 1, z - 3π) = 0, which simplifies to -x + 6z - 18π = 0.
The equation of the osculating plane of the curve at the point (0, 1, 3π) is 6x - y - 12z + 6π = 0.
To find the osculating plane of the curve, we need to find the normal vector and the binormal vector. The normal vector was already found in the previous step, which is N = (-2, -12, 0). The binormal vector is given by B = T×N, where T is the unit tangent vector. Evaluating T at t = 3π, we get T = (0, -6, 18). Taking the cross product of T and N, we get B = (12, -2, 72), which simplifies to B = (6, -1, 36).
Finally, we use the point-normal form of the plane equation to find the equation of the osculating plane. The point-normal form is given by N·(P - P0) = 0, where N is the normal vector, P is a point on the plane, and P0 is the given point. Since the osculating plane passes through the given point, we can take P0 = (0, 1, 3π). Substituting the values, we get (-2, -12, 0)·(x - 0, y - 1, z - 3π) = 0, which simplifies to 6x - y - 12z + 6π = 0.
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The midpoint of AB is M(1, -3). If the coordinates of A are (-6, -7), what are
the coordinates of B?
Answer:
B(8, 1)Step-by-step explanation:
M is the midpoint of AB so:
\(x_B-x_M=x_M-x_A\qquad\quad\ \wedge\qquad y_B-y_M=y_M-y_A\\\\x_B-1=1-(-6)\qquad\quad\wedge\qquad\quad y_B-(-3)=-3-(-7)\\\\x_B=1+6+1\qquad\quad\ \wedge\qquad\quad y_B=-3+7-3\\\\x_B=8\qquad\qquad\ \wedge\qquad\qquad y_B=1\)
could anyone help with this, im terrible at geometry haha
Answer:
10.90⁰
11.126⁰
12.54⁰
13.180⁰
Step-by-step explanation:
CDE is 180⁰ because it is a straight line
A chemist is mixing two solutions, solution A and solution B Solution A is 15% water and solution Bis 20% water. She already has a
beaker with 10mL of solution A in it. How many mL of solution B must be added to the beaker in order to create a mixture that is 18%
water?
Answer:
15 mL of the solution with 20% water will be needed.
Step-by-step explanation:
Use the inverse relationship
10 mL * (18-15)% = x mL * (20-18)%
x = 10 mL * (3/2) = 15 mL
Answer: 15mL
Step-by-step explanation:
Create a table. Multiply across and add down. The bottom row (Mixture) creates the equation.
Qty × % = Total
Solution A 10 15% → 0.15 10(0.15) = 1.5
Solution B x 20% → 0.20 x(0.20) = 0.20x
Mixture 10 + x × 18% → 0.18 = 1.5 + 0.20x
(10 + x)(0.18) = 1.5 + 0.20x
1.8 + 0.18x = 1.5 + 0.20x
1.8 = 1.5 + 0.02x
0.3 = 0.02x
15 = x