Answer: 20
Step-by-step explanation:
Plug three in for X
now multiply 4 times 3 to get 12 then add eight in your answers 20
What is the 75 percentage of 25?.
Graph the line that has a slope of −13 and contains the point (−6,−6).
Answer:
I would say the answer is the second graph.
Step-by-step explanation:
This is because this is the only graph that goes through the point (-6,-6).
I hope this is what your question was asking!
Find the value of x. Round to the nearest tenth
Answer:
36.869 or 36.87
Step-by-step explanation:
first, you find which trig function you are using. in this case, tangent.
then, you put calculate the arctan(3/4) which is 36.96989765
The measure of angle x = 36.9°
What is right triangle?"It is a triangle in which one of the angle measures 90° "
What is hypotenuse?"It is the longest side of the right triangle."
What is Pythagoras theorem?"In a right triangle \(a^{2}+ b^{2}= c^{2}\) where c is the hypotenuse and a, b are other two sides of the right triangle."
What is sine angle?"In a right triangle, sine of angle \(\theta\) is the ratio of the opposite side of angle \(\theta\) to the hypotenuse."
For given question
First we find the hypotenuse of the right triangle.
Let 'h' be the hypotenuse of the right triangle.
Using Pythagoras theorem,
\(h^{2} =3^{2} +4^{2} \\\\h^{2} =9+16\\\\h^{2} =25\\\\h=5\)
We find the sine of angle 'x'
\(\Rightarrow sin(x)=\frac{opposite~side~of~x}{hypotenuses} \\\\\Rightarrow sin(x)=\frac{3}{5}\\\\ \Rightarrow sin(x)=0.6\\\\\Rightarrow x=sin^{-1}(0.6)\\\\\Rightarrow x=36.9^{\circ}\)
Therefore, x = 36.9°
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Fine the measurements. Are this correctly?
Answer:
1: 5 2: 13 3: sqr root of 15 4: 1 5: 1 6: 3
Step-by-step explanation:
Follow the formula a squared plus b squared equals c squared. C is always the longest side of the equation. So figure out your variables to fill in and in the end, square root your remaining answer.
A wagon weighing 2,000 kg and moving at 0.69 m/s has to be brought to rest by a buffer. Compute the number of springs that would be required in the buffer stop to absorb the energy of motion during a compression of 15 cm. Each spring has 15 coils, made of 2 cm wire, the mean diameter of the coils being 20 cm and G=0.8 x 10' N/mm². Also, determine the stiffness of spring.
To bring the 2,000 kg wagon to rest, the buffer stop needs enough springs to absorb its kinetic energy. The number of springs and their stiffness can be calculated using given parameters and formulas.
To calculate the number of springs required in the buffer stop, we need to find the energy of motion that needs to be absorbed. The kinetic energy (KE) of the wagon is given by KE = (1/2)mv^2, where m is the mass (2,000 kg) and v is the velocity (0.69 m/s). The KE is 477.9 J.Next, we calculate the potential energy stored in the compressed springs. The compression distance is 15 cm, which is 0.15 m. The potential energy (PE) stored in each spring is given by PE = (1/2)kx^2, where k is the stiffness of the spring and x is the compression distance.
The total energy absorbed by all the springs is equal to the kinetic energy of the wagon. Therefore, the number of springs required is given by N = KE / PE, where N is the number of springs.To determine the stiffness of the spring, we use the formula k = (Gd^4) / (8nD^3), where G is the shear modulus (0.8 x 10^5 N/mm^2), d is the wire diameter (2 cm), n is the number of coils (15), and D is the mean diameter of the coils (20 cm).
By substituting the values into the equations, we can find the number of springs and the stiffness of each spring.
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Determine a unit vector in the direction of the following vectors: a)(7,-2) b) ||A|| 125 0144° c) (-1,5, 4)
(a) Unit vector in the direction of (7, -2): (7/√53, -2/√53) (b) Unit vector with magnitude 125 and angle 144°: (125cos(8π/5), 125sin(8π/5)) (c) Unit vector in the direction of (-1, 5, 4): (-1/√42, 5/√42, 4/√42)
(a) To determine a unit vector in the direction of vector (7, -2), divide the vector by its magnitude.
(b) To find a unit vector in the direction of a vector A with magnitude 125 and angle 144°, convert the angle to radians and use cosine and sine functions to calculate the components.
(c) For the vector (-1, 5, 4), divide each component by the magnitude of the vector to obtain a unit vector.
(a) The magnitude of vector (7, -2) is √(7^2 + (-2)^2) = √(49 + 4) = √53. Dividing the vector by its magnitude gives a unit vector (7/√53, -2/√53).
(b) To find the components of a vector with magnitude 125 and angle 144°, we use the formula: A = (Acosθ, Asinθ), where A is the magnitude and θ is the angle in radians. Converting 144° to radians, we have θ = (144° * π/180) = (8π/5). Calculating the components, we get (125cos(8π/5), 125sin(8π/5)).
(c) The magnitude of vector (-1, 5, 4) is √((-1)^2 + 5^2 + 4^2) = √(1 + 25 + 16) = √42. Dividing each component by the magnitude, we obtain the unit vector (-1/√42, 5/√42, 4/√42).
These unit vectors have a magnitude of 1 and represent the direction of the given vectors.
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Add -0.25+ 3 1/6+ 2 1/12. Write in simplest form
Answer: 5
Step-by-step explanation: because
What is the x-intercept of the line?
Answer:
-1
Explanation:
What is the x-intercept of a line?The x-intercept of a line is the point where the line crosses the x-axis.
The y-coordinate of the x-intercept is always 0.
In this case, we can see that the line crosses the x-axis where x = -1. Therefore the x-intercept of the equation is -1.
what is 3/8 of 1/4? please help
Answer: The answer is 0.09375, or about 3/32.
the probability distribution for the number of automobiles lined up at a lakeside olds dealer at opening time (7:30 am) for service is number probability 1 0.20 2 0.20 3 0.40 4 0.20 on a typical day, how many automobiles should lakeside olds expect to be lined up at opening time?
Lakeside Olds can expect around 2.6 automobiles to be lined up at the opening time for service.
To find the expected number of automobiles lined up at the opening time, we can use the following formula is used
Expected value = Σ (number of automobiles * probability)
Using the probability distribution provided in the question, we have:
Expected value = (10.20) + (20.20) + (30.40) + (40.20)
Expected value = 0.20 + 0.40 + 1.20 + 0.80
Expected value = 2.6
Therefore, on a typical day, Lakeside Olds can expect around 2.6 automobiles to be lined up at the opening time for service.
Note that since the expected value is not a whole number, it is an estimate and may not represent the actual number of automobiles on any given day.
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The sides of a rectangle are in the ratio 1:2. If the rectangle has an area of 578 in2, find the dimensions of the rectangle and the perimeter
Answer:
find the width and length
Step-by-step explanation:
find the missing sides of the triangle
Answer:
D
Step-by-step explanation:
Using the sine ratio in the right triangle and the exact value
sin30° = \(\frac{1}{2}\) , then
sin30° = \(\frac{opposite}{hypotenuse}\) = \(\frac{12}{f}\) = \(\frac{1}{2}\) ( cross- multiply )
f = 24
----------------------------------------------------------------
Using the cosine ratio and the exact value
cos30° = \(\frac{\sqrt{3} }{2}\) , then
cos30° = \(\frac{adjacent}{hypotenuse}\) = \(\frac{e}{f}\) = \(\frac{e}{24}\) = \(\frac{\sqrt{3} }{2}\) ( cross- multiply )
2e = 24\(\sqrt{3}\) ( divide both sides by 2 )
e = 12\(\sqrt{3}\)
Answer:
F=24 and e=12\(\sqrt{3}\)
Step-by-step explanation:
An electronic company manufactures a specific component for a tuner amplifier. It finds that out of every 1,000 components produced, 8 are defectives. If the components are packed in boxes of 250, find a. the probability of 0,1,2 and 3 defectives in a box b. the probability that the box contains at least 3 defectives.
Answer:
a. P(X = 0) = 0.134
P(X = 1) = 0.271
P(X = 2) = 0.272
P(X = 3) = 0.1812
b. P(X > 3) = 0.142
Step-by-step explanation:
The given parameters are
Number of defective component per 1000 = 8
Therefore, the probability that the specific component is defective = 8/1000 = 0.008
The binomial probability is given as follows;
\(P(X = r) = \dbinom{n}{r}p^{r}\left (1-p \right )^{n-r}\)
\(P(X = 0) = \dbinom{250}{0} \left (\dfrac{1}{125} \right )^{0}\left (\dfrac{124}{125} \right )^{250-0} = 0.134\)
\(P(X = 1) = \dbinom{250}{1} \left (\dfrac{1}{125} \right )^{1}\left (\dfrac{124}{125} \right )^{249} = 0.271\)
\(P(X = 2) = \dbinom{250}{2} \left (\dfrac{1}{125} \right )^{2}\left (\dfrac{124}{125} \right )^{248} = 0.272\)
\(P(X = 3) = \dbinom{250}{3} \left (\dfrac{1}{125} \right )^{3}\left (\dfrac{124}{125} \right )^{247} = 0.1812\)
The probability that the box contains at least 3 defectives is the probability P(X > 3) = 1 - (P(X = 3) + P(X = 2) + P(X = 1) + P(X = 0))
Which gives;
P(X > 3) = 1 - (0.1812 - 0.271 - 0.272 - 0.134) = 0.142
What is the sum of the first 18 terms in the arithmetic sequence 3+7+11+...?
What are the coordinates of the point where the line y = -\frac{4}{5}x + 80 intersects the x -axis?
Answer:
71
Step-by-step explanation:
I am only able to really help with the first part of this question. I am very sorry about that!
Lets take a look at the sequence!
It starts with 3 and then goes to 7. Which means it is adding 4 each time it continues. To confirm this, lets look at 11. 7 goes to 11, which again means it is adding 4! So we understand and now the pattern!
Rather than doing a buttload of work, lets do it an easier way. Lets plug 18 into a calculator!
If you have one, all you need to do is add 3 plus 4. Then plus for again. That should start a ripple effect if you press enter. On the 18 term it would be 71!
Hope that helped.
We put 6 lemons in a bag to fill it.
to fill it.
Which of the following numbers of lemons can fill
entire bags?
How do you know?
96, 46, 42, 60, 63, 72, 85
Please help answer this I need to get this done
Attempt 2
A student randomly selects two buttons from a box containing 32 red buttons, 48 blue buttons, 44 green buttons, and 51
yellow buttons. Compute the probability, as a decimal ratio with four decimal places, of selecting two red buttons.
The probability of drawing two red buttons is:
P = 0.0326
How to get the probability?There are:
32 red buttons.48 blue buttons.44 green buttons.51 yellow buttons.So there are a total of 32 + 48 + 44 + 51 = 175
We assume that all the buttons have the same probability to being randomly drawn.
For the first button, the probability of drawing a red one is equal to the quotient between the number of red buttons and the total number of buttons:
p = 32/175
For the second button the probability is computed in the same way, but now there are 31 red buttons and 174 buttons in total, so we have:
q = 31/174
Finally, the joint probability is given by the product between p and q, this gives:
p*q = (32/175)*(31/174) = 0.0326
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Find the directional derivative of f (x, y, z) = 2z2x + y3 at the point (1, 2, 2) in the direction of the vector 1/5akar i + 1/5akar j
(Use symbolic notation and fractions where needed.) directional derivative:
ఊhe directional derivative of f at the point (1, 2, 2) in the direction of the vector v = (1/5√2)i + (1/5√2)j is 2√2.
To find the directional derivative of the function f(x, y, z) = 2z^2x + y^3 at the point (1, 2, 2) in the direction of the vector v = (1/5√2)i + (1/5√2)j, we can use the formula for the directional derivative:
D_v(f) = ∇f · v
where ∇f is the gradient of f.
Taking the partial derivatives of f with respect to each variable, we have:
∂f/∂x = 2z^2
∂f/∂y = 3y^2
∂f/∂z = 4xz
Evaluating these partial derivatives at the point (1, 2, 2), we get:
∂f/∂x = 2(2)^2 = 8
∂f/∂y = 3(2)^2 = 12
∂f/∂z = 4(1)(2) = 8
Therefore, the gradient ∇f at (1, 2, 2) is given by ∇f = 8i + 12j + 8k.
Substituting the values into the directional derivative formula, we have:
D_v(f) = ∇f · v = (8i + 12j + 8k) · (1/5√2)i + (1/5√2)j
= 8(1/5√2) + 12(1/5√2) + 8(0)
= (8/5√2) + (12/5√2)
= (8 + 12)/(5√2)
= 20/(5√2)
= 4/√2
= 4√2/2
= 2√2
Hence, the directional derivative of f at the point (1, 2, 2) in the direction of the vector v = (1/5√2)i + (1/5√2)j is 2√2.
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Find G(x) =3x^2-2x-4. (X+5)
Answer:
3x^2 + 28x + 61
Step-by-step explanation:
I used MathPapa Algebra Calculator
(10 points) can someone help? :(
Answer:
Where is the Question?
Step-by-step explanation:
What’s a 1/3 as a whole number
Answer:
a repeating term of .3
Step-by-step explanation:
1/3 = 1 divided by 3
1 divided by 3 = .33333333333333333333
that is called a repeating term
\(\frac{1}{3}\) = .3
Answer: 1/3 is .3333333 on going
it cant be a whole number
Please help with question 8! BRAINLIEST to correct answer! (C is incorrect)
Answer:
7 is A
8 is A
Answer:
7.a
8.a
Step-by-step explanation:
regina writes an expression y+9 x 3/4 what expression is equivalent?
Answer:
y + 27/4
Step-by-step explanation:
Took the test
HURRY ASAP!
Fill in the blank. The product of the expression sixty-four sixty-fifths times twenty will be ________ 20.
A. equal to
B. greater than
C. half of
D. less than
The product of the expression sixty-four sixty-fifths times twenty will be less than 20. The correct option is D.
What is a fraction?A fraction is simply a piece of a whole. The number is represented mathematically as a quotient where the numerator and denominator are split. In a simple fraction, the numerator as well as the denominator are both integers.
The product of the expression sixty-four sixty-fifths times twenty will be:
= 64/65 × 20
= 0.985 × 20
= 19.7
This is less than 20.
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how do i rewrite this in the form of k•x^2
Answer:
8x^(3/2)
Step-by-step explanation:
We can simplify the expression first:
2sqrt(x)4x^(-5/2)=8x^(-3/2)
Now we can rewrite this in the form kx^2:
8x^(=3/2)=8(x^(-3/2))(x^(5/2))/x^2
=8(x^2/x^3)(x^(1/2))/x^2
=8x^(-1/2)
therefore, 2sqrt(x)4x^(-5/2) is equivalent to 8x^(-1/2), which can be written in the form kx^2 as 8x^(3/2)
I hope this helps!
Im stumped and timed.
the value of L is 9 .
Let A= (1 1 0 2 L . The reduced echelon form of A is The general solutions of Ac = 0 are The general solutions of Arc = = 0 are 3. If the three vectors are linearly dependent, then x= ; det (2A) =
Given the value of L as 9, we have a matrix A with entries (1 1 0 2 9). The reduced echelon form of A will determine the general solutions of the homogeneous system Ac = 0.
To find the reduced echelon form of matrix A, we perform row operations to simplify the matrix. However, without the full matrix A, it is not possible to determine the specific reduced echelon form.
The general solutions of the homogeneous system Ac = 0 can be obtained by solving the system of linear equations. The solutions will depend on the specific reduced echelon form of A.
If the three vectors in matrix A are linearly dependent, it means that at least one of them can be written as a linear combination of the others. In this case, the value of x can be determined by solving the corresponding linear equation. Overall, without the complete matrix A, it is not possible to provide a detailed answer regarding the reduced echelon form, general solutions, and determinant.
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please help i’ll give brainlyist this is due in 10 minutes
Answer:
hi :)
Step-by-step explanation:
0 yrs is 350 or 500 im not sure but, and then 6 yrs is 1350 $
A single person earns a gross biweekly salary of $840 and claims 5 exemptions. How will federal taxes affect his net pay?
Option (a) it is the same as the gross pay. is true statement about a person who is claiming 5 exemptions and biweekly salary of $ 840.
What separates a gross pay from a net salary?Yοur incοme is referred tο be yοur grοss pay if it is unaffected by taxes and οther withhοldings.
When referring tο yοur yearly grοss incοme, the phrase "annual pay" is frequently used. Net pay is the amοunt that remains after deductiοns like sοcial security and incοme tax have been made.
the persοn want mοre exemptiοns, it means that persοn thinks that, his οr her salary is less than οthers when cοmpared with οther emplοyee having mοre expenditure, and he οr she dοes nοt want tο pay tax οr will pay minimum amοunt οf tax tο the Gοvernment.
Sο, tο dο this he want exemptiοns.
As,persοn earns a grοss biweekly salary οf $840 and claims 5 exemptiοns.
→it means he οr she want tο reduce his tοtal tax tο minimum amοunt.
→it means he οr she dοes nοt have enοugh mοney in his οr her pοcket thrοughοut the year.
→ there will be nο tax deductiοn οn persοn net pay.And if he fοund caught cheating , he will have tο pay Penality.
Sο, οptiοn (a) it is the same as the grοss pay. is true statement abοut a persοn whο is claiming 5 exemptiοns and biweekly salary οf $ 840.
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What are the values of x and y*
Based on the given triangles, x is 9/4 and y is 15/4 (B).
To anwer this question, we need to understand that we have 3 different triangles in one picture:
ΔABCΔABDΔBCDFirst, we will focus on the biggest triangle ΔABC. We have 3 sides:
AB = 5BC = yAC = (4 + x)Using the phytagoras theorem, we can get the equation of:
AC² = AB² + BC²
(4 + x)² = 5² + y²
16 + 8x + x² = 25 + y² ... (i)
Next, we will focus on the third triangle, BCD. We have 3 different sides:
BC = yCD = xBD = 3Using the phytagoras theorem, we can get the second equation:
BC² = CD² + BD²
y² = x² + 3²
y² = 9 + x² ... (ii)
We can subtitute the equation (ii) into equation (i) to eliminate y:
16 + 8x + x² = 25 + y²
16 + 8x + x² = 25 + (9 + x²)
16 + 8x + x² = 34 + x²
16 + 8x = 34
8x = 18
x = 9/4 ... (iii)
By subtitute the equation (iii) into equation (ii), we can get the value of y:
y² = 9 + x²
y² = 9 + (9/4)²
y² = 9 + (81/16)
y² = 144 + 81
16
y² = 225/16
y = 15/4
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