Answer:
x = -9/2 or -4.5
Step-by-step explanation:
-2x-5=4
Add 5 to each side
-2x-5+5=4+5
-2x = 9
Divide each side by -2
-2x/-2 = 9/-2
x = -9/2 or -4.5
Cameron's dog weighs 10 pounds more than her cat. Her dog weighs 7 pounds less than Bill's dog. Cameron's cat weighs 8 pounds. How much does Bill's dog weigh?
Answer:
25
Step-by-step explanation:
10+7+8=25 this is because her cat weighs 8 pounds and her dog weighs 10 pounds more so that's 18 lb. after words it says Cameron's dog weighs 7 pounds less than bills so you do 18+7 and that equals 25
Jessica earns $ 12.50 An hour cleaning houses If she works from 8 am to 4 pm how much money will she make
HELP QUICKLY
what is x
2.5/x = 10/12
PLS HELP ASAP
Answer:
x = 3
Step-by-step explanation:
2.5/x = 10/12
Multiply both sides by x
2.5 = 10/12x
Divide both sides by 10/12
3 = x
please solve for M<PRQ
Answer:
\( m\angle PRQ =49\degree \)
Step-by-step explanation:
\( m\angle PSQ = 360\degree - (128\degree + 134\degree )\)
\( m\angle PSQ = 360\degree - 262\degree \)
\( m\angle PSQ = 98\degree \)
Now, by inscribed angle theorem:
\( m\angle PRQ = \frac{1}{2} \times m\angle PSQ \)
\( m\angle PRQ = \frac{1}{2} \times 98\degree \)
\( m\angle PRQ =49\degree \)
WHATS THE VOLUME PLS HELP
Answer:
Step-by-step explanation:
Volume is the quantity of three dimensional enclosed by a closed surface , for example , the space that a substance or 3D shape excipients or contains .Volume is often quantified numerically using the SI derived unit , the cubic metre.
To number the apartments in a building, metal plates with digits were used: one digit on each plate. How many plates were used to number 136 apartments in the building?
Answer:
301 plates
Step-by-step explanation:
For numbers between 0 and 9, 1 plate was used each.
This means that 10 plates were used.
For numbers between 10 and 99, 2 plates were used for each.
This means that the number of plates used will be:
2 * 90 = 180 plates
For numbers between 100 and 136, 3 plates were used for each.
This means that the number of plates used is:
3 * 37 = 111 plates
The total number of plates used is therefore:
10 + 180 + 111 = 301 plates
301 plates were used in total.
pyriamid a square base that measures 140 m on each side. the height is 91 m. what is the volume of the pyramid?
The volume of the pyramid is approximately 574,533.33 cubic meters.
To find the volume of a pyramid, you use the formula: V = (1/3) × base area × height, where B is the area of the base and h is the height of the pyramid.
Given that the side length of the square base is 140 m and the height is 91 m.
Since the base of the pyramid is a square with a side length of 140 m, we can find its area by multiplying the side lengths: B = 140m x 140m = 19,600 square meters.
By calculating this expression, you'll find the volume of the pyramid.
Now we can plug in the values for B and h into the formula: V = (1/3)(19,600 square meters)(91 meters) = 574,533.33 cubic meters.
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Mark each statement true or false. No need for explanation. • If G is an n-vertex disconnected graph with n 2 edges, then G is planar. • If G contains only one cycle, then G is planar. If HC G, then x(H) ≤ x(G) • If G is an n-vertex graph having k components of odd vertices, then the matching number of G is at most n-k 2
Here are the true/false answers to the given statements:• If G is an n-vertex disconnected graph with n 2 edges, then G is planar. - FALSE• If G contains only one cycle, then G is planar. - TRUE• If HC G, then
x(H) ≤ x(G) - TRUE•
If G is an n-vertex graph having k components of odd vertices, then the matching number of G is at most n-k 2 - If G is a disconnected graph with n vertices and at least n + 2 edges, then G is not a planar graph. Hence the given statement that "If G is an n-vertex disconnected graph with n 2 edges, then G is planar" is false. A graph G is planar if and only if every face of G is bounded by a cycle in G. So, a graph G that contains only one cycle is planar. Hence the given statement that "If G contains only one cycle, then G is planar" is true. The independence number α(G) of a graph G is the size of a maximum independent set in G.
If H is a subgraph of G, then x(H) is called the chromatic number of H. By Brooks' Theorem, if G is a connected graph that is neither a complete graph nor an odd cycle, then
x(G) ≤ Δ(G), where Δ(G) is the maximum degree of G. So, if HC G,
then x(H) ≤ x(G) is true. A matching in a graph is a set of edges such that no two of them share a common vertex. A maximum matching is a matching that contains the largest possible number of edges. So, if G is an n-vertex graph having k components of odd vertices, then the matching number of G is at most n-k 2 is true.
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55% of what number is 330? pls help meee
Answer:
600
Step-by-step explanation:
Assume x=target number
55%(x)=300
55%=0.55
0.55x=300
x=300/0.55
x=600
Answer
600
Step-by-step explanation:
Here is the formula/format:
Part %
------ = --------
Whole 100
We are trying to find the "whole" in this case, so I did:
330 55
------- = ------- (this says that 55% of the number we are looking for is 330)
x 100
Then, I cross multiplied and got: 55x= 33,000
From there, I divided 33,000 by 55 (inverse operations) to get x = 600.
I hope this helps! :)
a city recreation department plans to build a rectangular playground having an area of 16,900 square meters and surround it by a fence. how can this be done using the least amount of fencing? make the playground 26 meters by 650 meters make the playground 1300 meters by 13 meters make the playground 130 meters by 90 meters. make the playground 65 meters by 260 meters
The least amount of fencing to surround the playground is to use a dimension 130m by 90m
What is Perimeter?A perimeter is a closed path that encompasses, surrounds, or outlines either a two dimensional shape or a one-dimensional length. Calculating the perimeter has several practical applications.
The area of the play ground is 16900m². To find the possible dimensions of length and width we find the factors of 16900
The factors are 26×650, 1300× 13, 130×90 and 65×260
The formula of perimeter of a rectangle is 2(l+w)
using all these factors, dimension 130 and 90 will give the least perimeter of 440 i.e 2(130+90)= 440.
Therefore the least dimension for fencing the play ground is 130m by 90m.
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I only need help with number 1 and 2
Answer:
1. 12
2. 8
Step-by-step explanation:
\PLEASE MARK BRAINLIEST IT WILL HELP SM
18. A secretary works a 40-hour week and is paid a basic rate of $22.50 per hour.
Overtime is paid at time and a half. Calculate the TOTAL wage if the secretary
works for 52 hours in a certain
week.
Change the following fraction to a decimal. (Carry the division for three places as indicated. Do not round your answer.)
1/64 =
1/64 fraction is equal to 0.015625 in decimal form.
To change the fraction 1/64 to a decimal, we need to perform division.
1 divided by 64 can be written as:
0.015625
----------
64 | 1.000000
0
10
0
The result of the division is 0.015625. This means that 1/64 is equal to 0.015625 in decimal form.
Note that in this case, we carried the division out to six decimal places, but the question specified that we should carry it out to three decimal places. In that case, we would round the answer to 0.016.
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what is the probability that at least 3 are hyperlipidemic? what is the probability that exactly 3 are hyperlipidemic? how many would be expected to meet the criteria for hyperlipidemia?
Which expression is equivalent to sqrt -80
Expression equivalent to \(\sqrt {-80}\) :
\( \sqrt{ - 80} \)\( \sqrt{ {i}^{2} \times 80 } \)\(4 \sqrt{5} \: i\)The first 12 seconds of a rollercoaster ride can be modeled by a polynomial function where t is the number of
seconds and h(t) is equal to the height of the roller coaster in feet. Some roller coasters go underground as well
as above ground. In factored form, the rollercoaster can be modeled by the function
2
h(t)=2/5 (t - 1) (t-1) (t - 9) (t - 11)
What key feature(s) can be easily identified from the factored form? Explain how each key feature is related to
the rollercoaster. Use specific values in your explanation.
Answer:
&usher jxn xviii h h bxjcu hxhxh ucjcucjj cjdnjxj j uidusijxkd
5. suppose f is continuously complex differentiable on ω, and t ⊂ ω is a triangle whose interior is also contained in ω. apply green’s theorem to show that ???? this provides a proof of goursat’s theorem under the additional assumption that f′ is continuous.
The most appropriate choice for Green's Theorem, Cauchy Riemann Equation and Cauchy Goursat Theorem will be given by-
Cauchy Goursat Theorem has been proved using Green's Theorem-
What is Green's Theorem, Cauchy Riemann Equation and Cauchy Goursat Theorem?
Green's Theorem
Let C be a positively oriented, piecewise smooth, simple closed curve in a plane, and let D be the region bounded by C. Then
Green's Theorem states that
\(\int_c (Mdx + Ndy)=\int_D(M_x - N_y)dxdy\)
M and N are functions of x and y
Cauchy Goursat Theorem
If a function f is analytic at all points interior to and on a simple closed contour C, then
\(\int_c f(z) dz = 0\)
Cauchy Riemann Equation
If \(f(z)=u(x,y) + i v(x,y)\) is analytic at z = x + iy then Cauchy Riemann Equation states that
\(u_x = v_y, u_y = -v_x\)
Here,
Let \(f(z) = U(x,y) + iV(x,y)\)
\(U, V, x, y\) are continuous
\(f(z)dz = (U + i V)(dx + i dy)\)
\(f(z) dz = (U dx - Vdy)+i(Vdx + Udy)\)
\(\int_c f(z) dz = \int_c(U dx - Vdy)+i\int_c(Vdx + Udy)\), C is the curve
By Green's Theorem,
\(\int_c f(z)dz = \int_D(U_ydydx - V_xdxdy)+i\int_D(U_xdxdy + V_ydydx)\), D is the surface
\(\int_c f(z)dz = \int_D(-U_y - V_x)dxdy+i\int_D(U_x - V_y)dxdy\)\(\int_c f(z)dz = \int_D(V_x - V_x)dxdy+i\int_D(U_x - U_x)dxdy\)
Since \(f'\) is continuous, \(f\) is analytic
So \(f\) satisfies Cauchy Riemann equation
\(U_x = V_y, U_y = -V_x\)
So,
\(\int_c f(z)dz = \int_D(V_x - V_x)dxdy+i\int_D(U_x - U_x)dxdy\)
\(\int_c f(z)dz = 0\)
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Complete Question
Suppose f is continuously complex differentiable on Ω , and T⊂Ω is a triangle whose interior is also contained in Ω . Apply Green's theorem to show that
\(\int_T\) f(z)dz=0
This provides a proof of goursat’s theorem under the additional assumption that f′ is continuous.
.
It is given that y is directly proportional to x. When x = 3, y = 18. (a) Find the equation connecting x and y. (b) Hence, find (i) the value of y when x = : 12, (ii) the value of x when y = 42.
Answer:
see explanation
Step-by-step explanation:
(a)
Given y is directly proportional to x then the equation relating them is
y = kx ← k is the constant of proportion
To find k use the condition when x = 3, y = 18 , then
18 = 3k ( divide both sides by 3 )
6 = k
y = 6x ← equation of proportion
(b)
(i)
when x = 12 , then
y = 6 × 12 = 72
(ii)
when y = 42
42 = 6x ( divide both sides by 6 )
7 = x
BRAINLIEST PERSON WHO GETS IT
Nyoko wrote these two questions.
Equation 1: 6x-5+2x = 4(2x-1) - 1
Equation 2: 3x +7 = bx+7
Part A
Nyoko says that Equation 1 has one solution. Do you agree with her? Explain your reasonings.
Part B
Can Nyoko find a value for b in Equation 2 so that the equation has no solutions? Explain Your REASONING!
a) The equation 1 has an infinite number of solutions, as both linear functions have the same slope and internet, hence Nyoko is incorrect.
b) Nyoko cannot find a value of b so that the equation has no solutions.
How to solve the equations?The equation 1 is given as follows:
6x - 5 + 2x = 4(2x - 1) - 1.
Combining the like terms and applying the distributive property, the simplified equations are given as follows:
8x - 5 = 8x - 4 - 1
8x - 5 = 8x - 5.
As they are linear functions with the same slope and intercept, the number of soltuions is of infinity.
The equation 2 is given as follows:
3x + 7 = bx + 7.
A system of linear equations will have zero solutions when:
The equations have the same slope.The equations have different intercepts.As they have the same intercept for this problem, it is not possible to attribute a value of b such that the equation will have no solution.
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Given: AB=CD, BC=DA
Prove: ABCD is a parallelogram
Answer:
Step-by-step explanation:
2) reflexive property
3) Triangle BCD, SSS
4) Angle 3, Angle 2
5) Alternate interior angles theorem
6) If a quadrilateral has 2 pairs of opposite sides that are parallel, the quadrilateral is a parallelogram.
WILL GIVE BRAINLIEST Raul, Chris, and Jerry together sold 88 tickets for the school banquet. Raul sold 30 tickets, and Chris sold 38 tickets. How many tickets did Jerry sell?
19
20
58
68
Answer:
20 or B)
Step-by-step explanation:
88-30= 58
58-38= 20
Jerry sold 20
Hope this helped.
A brainliest is always appreciated.
10. How many times smaller
is 0.98 than 9.8?
There are four orange cards in a deck of 44 cards if a card is drawn from the deck at random what is the probability of not drawing an orange card
Answer:
\(P(A) =\frac{40}{44}\)
Step-by-step explanation:
Ω - is the number of all possible events.
|Ω|=44=|Omega|
A - the event that drawn card from deck isn't an orange card.
|A|=44-4=40
\(P(A)=\frac{|A|}{|Omega|} =\frac{40}{44}\)
An orange grower harvested oranges from 4 acres of land and collected 720 bushels of oranges. The next day, the farmer harvested oranges from 7 acres of land and collected 1,260 bushels of oranges.
Is there a proportional relationship between the number of bushels of oranges collected and the number of acres harvested over the two days? Explain.
Yes, there is a proportion relationship between the number of bushel and acres of land. The relationship is the number of busher is directly proportional to the number of acres of land.
What is direct proportion?Direct proportion or direct variation is the relation between two quantities where the ratio of the two is equal to a constant value.
direct proportion is given as y= kx
Where y and x are the variables and k is constant.
If the bushel of orange is given by x and the acres of land by y
then x= ky
for the expression to be correct the value of k should be thesame
when x= 720 and y = 4
k= x/y
k= 720/4= 180
when x= 1260 and y= 7
k= x/y
k= 1260/7
k= 180
therefore the x is directly proportional to y
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what is the cube root of 7
Now,
The cube root of 7 = 7^1/3
= 1.912
I hope it's help you...
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Select the graph that would represent the best presentation of the solution set 4x-2<10.
The graph of the inequality is a straight line that passes through point 3 and represents the solution set.
What is an inequality?A mathematical statement known as an inequality in mathematics examines two values or quantities and determines whether they are equal or not. Ranges of values or equation solutions can also be described by inequality. Inequality x 10 defines all x values that are less than or equal to 10, whereas inequality x > 3 represents all x values that are more than 3. For a visual representation of the range of values that fulfil an inequality, inequality's can be graphed on a number line.
The given inequality is 4x - 2 < 10
The inequality can be written as:
4x < 10 + 2
4x < 12
x < 3
Hence, the graph of the inequality is a straight line that passes through point 3 and represents the solution set.
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move the lenghts to the lines in order from shortest to longest
shortest________ _________ __________ __________longest
1 kilometer 1 meter 1 millimeter 1 centimeter
What is the area of the obtuse triangle below?
11
13
A. 12 sq. units
7
B. 71.5 sq. units
C. 24.5 sq. units
D. 143 sq. units
Calculate the experimental probability of flipping a coin 25 times, and getting heads 8 times.
Answer:
68 percent
Step-by-step explanation:
Answer:
68%
Step-by-step explanation:
the eigenvectors of the covariance matrix show the direction in which the data has the highest correlation. true or false
It is true that the eigenvectors of the covariance matrix are equal to the principal components. Concretely, the first principal component (i.e. the largest eigenvector and associated largest eigenvalue) gives you the direction of the maximum variability in your data
The covariance matrix's eigenvectors are identical to its major components, which is a well-known fact. In more concrete terms, the direction of the most variability in your data is provided by the first principal component, which is represented by the largest eigenvector and related largest eigenvalue. After that, each primary component provides you decreasingly variable output. The fact that each primary component is orthogonal to the others is also important to note.
The above picture was taken from the Principal Component Analysis article on Wikipedia, which I previously referred to. This is a scatter plot of samples having a bivariate Gaussian distribution with a center at (1,3), a standard deviation of 3 roughly in the (0.878, 0.478) direction, and a standard deviation of 1 roughly in the orthogonal direction. The first principal component is the one with a standard deviation of 3, and the second is the orthogonal component. The shown vectors are the eigenvectors of the covariance matrix scaled by the relevant eigenvalue's square root and moved to place their tails at the mean.
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