does anyone know this pls help

Answer:

6 is ur answer hope it help u

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Merry christmas~

The slack of activity B, given its duration of 12 days, earliest finish of 22 days, and latest start of 15 days, is -7 days.

Now, let's calculate the slack of activity B. Slack represents the amount of time an activity can be delayed without affecting the overall project schedule. Mathematically, slack can be calculated as the difference between the latest start (LS) and the earliest finish (EF) of an activity:

Slack = LS - EF

In our case, the latest start (LS) of activity B is 15 days, and the earliest finish (EF) is 22 days. Therefore, the slack of activity B can be calculated as follows:

Slack = LS - EF

Slack = 15 - 22

Slack = -7

The slack value of -7 indicates that activity B is already delayed by 7 days, considering the project schedule. Negative slack values imply that the activity is behind schedule, and any further delay will directly impact the project completion date.

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Initially travelling away from it at a speed of +0.156 m/s, a M = 9.00 kilogram ball collides head-on with a M = 10.0 kg ball that is moving at +3.00 m/s.

\($v_{1, \mathrm{f}}=\left(\frac{m_1-m_2}{m_1+m_2}\right) v_{1, \mathrm{i}}+\left(\frac{2 m_2}{m_1+m_2}\right) v_{2, \mathrm{i}}$$v_{2, \mathrm{f}}=\left(\frac{2 m_1}{m_1+m_2}\right) v_{1, \mathrm{i}}+\left(\frac{m_2-m_1}{m_1+m_2}\right) v_{2, \mathrm{i}}$\)

If you know the other values of an object's properties, you may determine its momentum or velocity using the momentum equation p = m•v.

When momentum, p, and kinetic energy, KE, are conserved during a collision, the collision is said to be elastic. KE0 = KEf and po = pf are the results, respectively. KE = 1/2 mv2, thus we will write 1/2 m1 when we remember that (v1i) 2 + 1/2 m2(vi)2 = 1/2 m1(v1f) (v1f) 2 + 1/2 m2 (v2f) (v2f) When the cue ball and the 2 ball collide with velocities of 0.0m/s before and after, 100% of the momentum of the cue ball is transmitted to the "8." It follows that the "8" ball is moving at a speed of 2.0 m/s. The masses' initial kinetic energy is given by K.E1 = 1/2 m1u21 + 1/2 m2u22.

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Xis the smallest upper bound for -2A (sup CA) and y is the greatest lower bound for A (inf A), we can conclude that sup CA = cinf A.

(a) If A = (-3, 4] and c = -2, then -2A can be written as an interval using interval notation.

To obtain -2A, we multiply each element of A by -2. Since c = -2, we have -2A = {-2a : a ∈ A}.

For A = (-3, 4], the elements of A are greater than -3 and less than or equal to 4. When we multiply each element by -2, the inequalities are reversed because we are multiplying by a negative number.

So, -2A = {x : x ≤ -2a, a ∈ A}.

Since A = (-3, 4], we have -2A = {x : x ≥ 6, x < -8}.

In interval notation, -2A can be written as (-∞, -8) ∪ [6, ∞).

(b) To prove that sup CA = cinf A, we need to show that the supremum of -2A is equal to the infimum of A.

Let x be the supremum of -2A, denoted as sup CA. This means that x is an upper bound for -2A, and there is no smaller upper bound. Therefore, for any element y in -2A, we have y ≤ x.

Since -2A = {-2a : a ∈ A}, we can rewrite the inequality as -2a ≤ x for all a in A.

Dividing both sides by -2 (remembering that c = -2), we get a ≥ x/(-2) or a ≤ -x/2.

This shows that x/(-2) is a lower bound for A. Let y be the infimum of A, denoted as inf A. This means that y is a lower bound for A, and there is no greater lower bound. Therefore, for any element a in A, we have a ≥ y.

Multiplying both sides by -2, we get -2a ≤ -2y.

This shows that -2y is an upper bound for -2A.

Combining the results, we have -2y is an upper bound for -2A and x is a lower bound for A.

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The domain of the total cost function C = 1.50T + 12 is the set of non-negative integers.

Two or more expressions with an Equal sign is called as Equation.

The domain of the function is all non-negative integers, since the number of toppings on a pizza cannot be negative or a fraction of a topping.

Therefore, the domain is {0, 1, 2, 3, ...}

This means that the function is defined for any non-negative integer value of T.

If the customer orders a pizza with 3 toppings, then the total cost would be C = 1.50(3) + 12 = $16.50.

If the customer orders a plain cheese pizza with no toppings, then the total cost would be C = 1.50(0) + 12 = $12.

Therefore, the domain of the total cost function C = 1.50T + 12 is the set of non-negative integers.

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Answer:

The graph in the attached figure

Step-by-step explanation:

Let

x ----> parts of water

y ----> parts of salt

we know that

Class A

y/x = 3/5

y=3/5x

Class B

y/x=2/4=1/2

y=1/2x

using a graphing tool

The graph in the attached figure

Answer:

answer all?

Step-by-step explanation:

Answer:

1- SF: 2; X:7

2- SF:2.5; X:10.5

3- SF:1.5; X:7.5

4- SF:3; X:9.4

Step-by-step explanation:

Answer:

The two percent could be 100% and 400%.

Step-by-step explanation:

This would result in the length being multiplied by 4.

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Answer:

The amswer is "2,4,9....."

Step-by-step explanation:

\(x=\frac{1}{7}\\\\x_d=0.\overline{142857}\\\\x_h=0.\overline{249}\\\\\)

by leave you to work out the other 7 digits:

\(\to \frac{1}{7}\approx \frac{a}{16}\\\\a= \text{first hex digit}\\\\a=floor(\frac{16}{7})=2\\\\\)  

\(\to \frac{1}{7}- \frac{a}{16}\approx \frac{b}{16^2}\\\\b= \text{second hex digit}\\\\b=floor(\frac{16^2}{7} -16a)=4\\\\\)  

\(\to \frac{1}{7}- \frac{a}{16}-\frac{b}{16^2} \approx \frac{c}{16^3}\\\\c= \text{third hex digit}\\\\c=floor(\frac{16^3}{7} -16^2a-16b)=9\\\\\)  

what do you need help with

Answer:

Sure

Step-by-step explanation:

Answer:

Answer: FIRST OPTION

Step-by-step explanation:

The missing picture is attached.

By definition, given a Quadratic equation in the form:

Where "a", "b" and "c" are numerical coefficients and "x" is the unknown variable, you caN use the Quadratic Formula to solve it.

The Quadratic Formula is the following:

In this case, the exercise gives you this Quadratic equation:

You can identify that the numerical coefficients are:

Therefore, you can substitute values into the Quadratic formula shown above:

You can identify that the equation that shows the Quadratic formula used correctly to solve the Quadratic equation given in the exercise for "x", is the one shown in the First option.

Answer: To determine which expressions are equivalent to the given expression, we need to simplify the given expression first:

2/3 (3a + 3b + 8) = 2a + 2b + 16/3

Now we can check which expressions are equivalent to this simplified expression:

A. 3a + 3b + (8 + 4) − 4 = 3a + 3b + 8, not equivalent

B. −(−¾a + ½¾⁄b + 8) = 3/4 a - 3/2 b - 8, not equivalent

C. (a + b + 8) (3a + 3b + 8) × ²1/1 = (3a^2 + 9ab + 24a + 3b^2 + 24b + 64)/1, not equivalent

D. 6x = 6x, not equivalent

E. a + b + 0 × c + 8 = a + b + 8, not equivalent

None of the expressions is equivalent to the given expression 2/3 (3a + 3b + 8).

Step-by-step explanation:

Here you go, rockstar

B) 15x3 + 18x2 − 24x is a polynomial

✨keep going!✨

If I were required to survey Fresno City College students regarding their employment status, I would use a stratified random sampling technique.

Stratified random sampling involves dividing the population into subgroups, or strata, based on certain characteristics that are relevant to the survey. In this case, the relevant characteristic is employment status. The population consists of all Fresno City College students, and the two strata are employed and unemployed students.

Once the population has been divided into strata, a random sample is taken from each stratum. The sample size for each stratum is proportional to the size of the stratum in the population. For example, if 60% of Fresno City College students are employed, then 60% of the sample should consist of employed students.

Using a stratified random sampling technique ensures that the sample is representative of the population and that each subgroup is represented in the sample. It also reduces sampling error and increases the precision of the estimates.

Answer:

The area of the figure is 61.24 cm

Step-by-step explanation:

The area for the parallelogram is determined by base x height, so 7 x 6 = 42.

The area of a circle is \(\pi\)r², with r being the radius, so that means the circle area is 38.48, but because its a semicircle, its half of that, so the area is 19.24.

42 + 19.24 = 61.24

it's sideways take a better pic

To estimate (1.02)³(-3.02)³ using linear approximation, we can start by considering the function f(x) = x³. We will approximate the values (1.02)³ and (-3.02)³ by using the linear approximation around a known value.

Let's choose the known value to be 1. Using the linear approximation, we have:

f(x) ≈ f(a) + f'(a) * (x - a)

where a = 1 is our chosen known value, and f'(x) is the derivative of f(x) with respect to x.

For f(x) = x³, we have f'(x) = 3x².

Approximating (1.02)³:

f(1.02) ≈ f(1) + f'(1) * (1.02 - 1)

= 1³ + 3(1²) * (1.02 - 1)

= 1 + 3 * 1 * (0.02)

= 1 + 0.06

= 1.06

Approximating (-3.02)³:

f(-3.02) ≈ f(1) + f'(1) * (-3.02 - 1)

= 1³ + 3(1²) * (-3.02 - 1)

= 1 - 3 * 1 * (4.02)

= 1 - 12.06

= -11.06

Now, we can multiply these approximations:

(1.02)³(-3.02)³ ≈ 1.06 * (-11.06)

≈ -11.7576

To compare this with the value given by a calculator, let's calculate it accurately:

(1.02)³(-3.02)³ ≈ 1.02³ * (-3.02)³

≈ 1.06120808 * (-10.8998408)

≈ -11.55208091

The percentage error can be computed using the formula:

Error = (Approximated Value - Actual Value) / Actual Value * 100%

Error =(−11.7576−(−11.55208091))/(−11.55208091)∗100

= −0.20551909/(−11.55208091)∗100

≈ 1.7784%

Therefore, the percentage error is approximately 1.7784%.

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Answer:9

Step-by-step explanation:

Do the proportion:

60/54 = 110/(10x+9)

Simply solve for x

Answer: y= \(\sqrt[3]{5}\)

Step-by-step explanation:

Answer:

The plane represented in the box is: fbcg

Step-by-step explanation:

Given

The attached box

Required

Which of the given points is a plane in the box

To do this, we simply check if the points are connected i.e. if there is a directed between each of the points of the plane.

A. FBCG

Point F links to B, (by drawing a vertical line from F)

Point B links to C, (by drawing a right horizontal line from B to C)

Point C links to G, (by drawing a vertical line from C down to G)

Point G links to F, (by drawing a left horizontal line from G to F)

Hence, FBCG is a plane on the box.

This is not so for other options

Answer:

No.

The square root of any number can never be negative/ -1

The height of the PEMEX tower is  287.6 meters if She walks towards the tower 500m and finds that the angle is 60 degrees.

The angle of elevation = 30 degrees

Walking distance = 500m

The angle of elevation after walking  = 60 degrees

When Pamela is  500 meters away from the tower, the tangent of the angle of elevation is calculated as:

tan(30°) = h / 500

h = 500 * tan(30°)

h = 500 * 0.5774

h = 288.7 meters

After walking 500m,

tan(60°) = h / d

h = d * tan(60°) ---------equation 1

The new distance between her and the tower is:

d = 500 - x

Using the tangent function with an angle of 60 degrees, the equation can be written as:

h = (500 - x) * tan(60°)

500 * tan(30°) = (500 - x) * tan(60°)

288.7 = (500 - x) * 1.732

166.5 = 500 - x

x = 333.5 meters

Substituting this value of x  in equation 1:

h = (500 - 333.5) * tan(60°)

h = 166.5 * 1.732

h = 287.6 meters

Therefore, we can conclude that the height of the tower is 287.6 meters.

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The complete question is-

Pamela wants to calculate the height of a PEMEX tower. She observes that the angle of elevation to the top of the tower is 30 degrees. She walks towards the tower 500m and finds that the angle is now 60 degrees.

As the question suggests, we need to use Pythagorean Theorem!

\(a^{2}\ +\ b^{2}\ = c^{2}\)

You are given the hypotenuse and one of the sides therefore you need to rearrange your formula like so:

\(a^{2}=c^{2}-b^{2}\)

Substitute your values and solve.

\(a^{2}=17^{2}-15^{2}\\a^{2}=289-225 \\a^{2}=64\\\sqrt{a^{2}} =\sqrt{64} \\\)

a = 8 meters

The exact expression for the electrostatic potential at a point P in the x, y plane at a distance r from the center of the quadrupole is given by V(r) = k [Q/(r2 + D2)1/2 – Q/[(r2 + 2d + D2)1/2]] + k [-2Q/D].

Let's consider that three charges are placed in a straight line along the z-axis, and the charges are +Q on z=+D, -Q on z=-D, and -2Q at z=0.

To find the electrostatic potential at a point P in the x, y plane at a distance r from the center of the quadrupole, let's proceed with the following steps:

To find the electrostatic potential at a point P in the x-axis, we need to consider that the distance from the charges that are on the axis is r, and the distance from the charges that are on the axis and are at +D and -D is d.

The distance from the charges on the axis and at 0 is x. Now we can write,

V(x) = k [Q/(x2 + D2)1/2 – Q/[(x + d)2 + D2]1/2] + k [-2Q/D].

Now, we can substitute the values in the above expression and obtain,

V(x) = k [Q/(x2 + D2)1/2 – Q/[(x + d)2 + D2]1/2] + k [-2Q/D] .

Now, we need to use symmetry to argue that we can switch from x to r, which is given by r2 = x2 + y2.

Thus, the exact expression for the electrostatic potential at a point P in the x, y plane at a distance r from the center of the quadrupole is given by V(r) = k [Q/(r2 + D2)1/2 – Q/[(r2 + 2d + D2)1/2]] + k [-2Q/D].

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Answer:

\(\frac{17}{4}\)

Step-by-step explanation:

Replace y with 3/2 and solve for x

2x + 3(3/2) = 13

2x + 9/2 = 13  Subtract 9/2 from both sides

2x = \(\frac{13}{1}\) - \(\frac{9}{2}\)

2x = \(\frac{26}{2}\) - \(\frac{9}{2}\)

2x = \(\frac{17}{2}\)  Divide both sides by 2

x = \(\frac{17}{2}\) ÷ \(\frac{2}{1}\)

x = \(\frac{17}{2}\) x \(\frac{1}{2}\)

x = \(\frac{17}{4}\) o r4 \(\frac{1}{4}\) or 4.25

Answer:

Step-by-step explanation:

how many questions was it out of ?

but you must take away the 8 for the total amount of questions

A scientist can use bootstrap analysis to estimate the strength of evidence that a particular node in a phylogeny exists.

Bootstrap analysis is a statistical method used to determine the reliability and robustness of phylogenetic trees' topologies. In bootstrap analysis, a series of random resampling with replacement is used to assess how well the observed data fit the phylogenetic hypothesis.

Bootstrap values range from 0 to 100 and reflect the proportion of times that a particular node or branch occurs in the bootstrap replicate trees. Bootstrap values greater than 70% are usually considered strong evidence that a particular node or branch exists in the phylogenetic tree.

Bootstrap analysis is an important tool for understanding the reliability of phylogenetic trees and the evolutionary relationships among organisms.

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