Guys plz help Answer this Question!!!!!

Answer:

Lisa

Step-by-step explanation:

Find the amount of money Lisa and Tara charge every hour.

Lisa's ratio is 28 : 2 hours

Divide both sides of the ratio by 2

Lisa charges 14 dollars per hour

Tara's ratio is 75:5 hours

Divide both sides of the ratio by 5

Tara charges 15 dollars per hour

Lisa charges 1 dollar less each hour, so Lisa offers a better deal.

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Answer:

y > 2x+5  and y > 6+ 3z/4

Step-by-step explanation:

solve each inequality and then find the intersection

Answer:

y > - 2x

Step-by-step explanation:

Answer: 8

Step-by-step explanation:

The approximate value of y(0.4) using Euler's method is approximately 1.9963.

To approximate the value of y(0.4) using Euler's method for the given differential equation dy/dx = -3(x^2)y, we can use the following steps:

1. Initialize the variables:

  - Set the initial value of x as x0 = 0.

  - Set the initial value of y as y0 = 2.

  - Set the step size as Δx = 0.1.

  - Set the target value of x as x_target = 0.4.

2. Iterate using Euler's method:

  - Set x = x0 and y = y0.

  - Calculate the slope at the current point: slope = -3(x^2)y.

  - Update the values of x and y:

    x = x + Δx

    y = y + slope * Δx

  - Repeat the above steps until x reaches the target value x_target.

3. Approximate y(0.4):

  - After the iterations, the value of y at x = 0.4 will be the approximate solution.

Let's apply these steps:

Initialization:

x0 = 0

y0 = 2

Δx = 0.1

x_target = 0.4

Iteration using Euler's method:

x = 0, y = 2

slope = -3(0^2)(2) = 0

x = 0 + 0.1 = 0.1

y = 2 + 0 * 0.1 = 2

slope = -3(0.1^2)(2) = -0.006

x = 0.1 + 0.1 = 0.2

y = 2 + (-0.006) * 0.1 = 1.9994

Repeat the above steps until x reaches the target value:

slope = -3(0.2^2)(1.9994) = -0.02399

x = 0.2 + 0.1 = 0.3

y = 1.9994 + (-0.02399) * 0.1 = 1.9971

slope = -3(0.3^2)(1.9971) = -0.10773

x = 0.3 + 0.1 = 0.4

y = 1.9971 + (-0.10773) * 0.1 = 1.9963

Approximation:

The approximate value of y(0.4) using Euler's method is approximately 1.9963.

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Answer:

y=  -69/8  (negative 69 over 8)

Step-by-step explanation:

First, you have to simplify both sides of the equation:

\(-2/3y+ -3/4 =5\)

Second, add 3/4 to both sides:

-2/3y +-3/4 + 3/4=5 +3/4

-2/3y= 23/4

Next, multiply both sides by 3/(-2) (3 over -2)

(3/-2)*(-2/3y)= (3/-2) * (23/4)

y= -69/8

9514 1404 393

Answer:

  XY = 11

Step-by-step explanation:

  XY = YZ

  3x +2 = x +8

  2x = 6 . . . . . . . . . subtract x+2

  x = 3

  XY = 3 +8 . . . . . . . . x +8 is the same as 3x+2

  XY = 11

Answer:

\(\boxed {\boxed {\sf XY= 11}}\)

Step-by-step explanation:

We are asked to find the value of XY.

We know that Y is the midpoint of XZ. The midpoint of a line bisects the line or divides it into 2 equal parts. The point Y divides the line XZ into 2 parts : XY and YZ. Since Y is the midpoint, XY and YZ are equal.

\(XY= YZ\)

We know that XY is equal to 3x+2 and YZ is equal to x+8.

\(3x+2=x+8\)

Now we can solve for x by isolating the variable. Move all the terms with variables to one side and the constants to the other side. Subtract x from both sides of the equation.

\((3x-x) +2 = (x-x)+8\)

\(2x+2=8\)

Subtract 2 from both sides of the equation.

\(2x+(2-2)= (8-2)\)

\(2x=6\)

Divide both sides of the equation by 2.

\(2x/2= 6/2\)

\(x= 6/2 \\x=3\)

Now we know that x is equal to 3 and we can substitute it back into 3x+2 to solve for XY.

\(XY= 3x+2 \\XY=3(3) +2\\XY=9+2 \\XY=11\)

The range for this function is (0,800].

What is a geometric progression?

It is a sequence of terms in which the succeeding term is can be found out by multiplying with a constant non zero value.

here the first term is 800 as it is the initial price. We can see that the common ratio is less than 1 which is 0.82, hence its a decreasing progression.

so the maximum value in range is 800

as x tends to infinity the equation tends to 0

hence the funtion apporaches 0

so the range will be (0,800]

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Using geometric progression, the range for this function is (0,800].

A mathematical sequence known as a geometric progression (GP) is one in which each following phrase is generated by multiplying each preceding term by a fixed integer, or "common ratio."

This progression is sometimes referred to as a pattern-following geometric sequence of numbers.

Here the first term is 800 as it is the initial price. We can see that the common ratio is less than 1 which is 0.82.

Hence it's a decreasing progression.

So, the maximum value in the range is 800.

As x tends to infinity the equation tends to 0.

Hence, the function approaches 0

So the range will be (0,800].

Therefore, using a geometric progression, the range for this function is (0,800].

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The probability of observing k marked deer in the second sample of m deer can be calculated using the hypergeometric distribution.

The probability of observing k marked deer in the second sample of m deer in a capture-recapture study can be calculated using the concept of hypergeometric distribution.

In this scenario, let's consider the following variables:

N = Total population size (number of deer)

n = Number of deer initially captured and marked

m = Number of deer captured in the second sample

k = Number of deer in the second sample that are marked from the first capture

The probability of observing k marked deer in the second sample can be calculated as the ratio of two combinations:

P(k marked in the second sample) = (Number of ways to choose k marked deer) * (Number of ways to choose (m - k) unmarked deer) / (Number of ways to choose m deer from the population)

The number of ways to choose k marked deer from the total n marked deer in the population is given by the combination formula:

Number of ways to choose k marked deer = C(n, k)

Similarly, the number of ways to choose (m - k) unmarked deer from the remaining (N - n) unmarked deer in the population is given by the combination formula:

Number of ways to choose (m - k) unmarked deer = C(N - n, m - k)

Lastly, the number of ways to choose m deer from the total N deer population is given by the combination formula:

Number of ways to choose m deer from the population = C(N, m)

Putting it all together, the probability of observing k marked deer in the second sample can be calculated as:

P(k marked in the second sample) = C(n, k) * C(N - n, m - k) / C(N, m)

This formula takes into account the random selection of deer in the two samples and assumes no change in the population size or migration during the sampling period.

It's important to note that this calculation assumes that the marking and recapture process does not affect the behavior or mortality of the deer. It also assumes that the marked deer mix randomly with the unmarked deer between the captures.

By using the appropriate combination formulas and plugging in the values of n, N, m, and k, you can calculate the probability of observing k marked deer in the second sample.

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The probability that a student is both a sophomore and a business major is 12/61.

The probability that a student is both a sophomore and a business major can be calculated by dividing the number of students who are both into the total number of students.

Let's denote the event of a student being a sophomore as A and the event of a student being a business major as B. We want to find the probability of both events occurring, denoted as P(A and B).

From the given information, we know that there are 61 students in total, with 37 being sophomores and 26 being business majors. We are also given that 10 students are neither sophomores nor business majors.

To find the probability of a student being both a sophomore and a business major, we need to determine the number of students who satisfy both conditions.

Since there are 61 students in total and 10 of them are neither sophomores nor business majors, the number of students who are both sophomores and business majors is 37 + 26 - 61 + 10 = 12.

Therefore, the probability of a student being both a sophomore and a business major is:

P(A and B) = Number of students who are both sophomores and business majors / Total number of students = 12 / 61.

Thus, the probability that a student is both a sophomore and a business major is 12/61.

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The mean and median of the hours of sleep are 10.333 hours and 10.5 hours, respectively.

The ages (in years) of 10 infants and the numbers of hours each slept in a day are given below.

Age, x: 0.1, 0.2, 0.4, 0.7, 0.6, 0.9

Hours of sleep, y: 14, 12, 10, 8, 11, 7

We are to find the mean and median of hours of sleep.Let us first arrange the hours of sleep in increasing order.

7, 8, 10, 11, 12, 14

Mean is given by the formula \($\frac{\sum_{i=1}^{n} x_i}{n}$\)

Here, the sum of the observations is given by

7 + 8 + 10 + 11 + 12 + 14 = 62

Therefore, the mean of the hours of sleep is

\($\frac{62}{6}$\) = 10.333 hours

Now, the median can be calculated as follows:

Total number of observations, n = 6

Therefore, the median = \($\frac{(n+1)}{2}^{th}observation\)

=\(\frac{(6+1)}{2}^{th}$ observation\)

= 3.5th observation

Since there is no 3.

5th observation, the median is the mean of the 3rd and the 4th observation=

\($\frac{10 + 11}{2}$\)= 10.5 hours.

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Answer:

88 trucks

Step-by-step explanation:

Ratio of cars : vehicles = 5:13

Hence, the ratio of trucks : vehicles = 8:13

143/13 = 11

If the number of vehicles is 143,

we have to multiply both sides of the ratio by 11:

8*11 : 13* 11

88 : 143

Hence, there are 88 trucks for every 143 vehicles.

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Answer:

Kale, 1 carrots, 4 sweet potatoes, 3, beets, 2

Step-by-step explanation:

um just round

P.S. Iready sucks

Answer:

Kale ; 1(oz)

Carrots; 4(oz)

Sweet Potatoes; 4(oz)

Beets; 2(oz)

Step-by-step explanation:

       Kale              \          1.35                ⇒    1(oz)

    Carrots            \         3.50                ⇒   4(oz)

Sweet potatoes   \         3.81                ⇒   4(oz)

      Beets              \        2.29                ⇒   2(oz)

The first two random numbers are 4,5.using linear congruential generator with a=4, m=11 and b=0 and 23 as the seed

linear congruential  generator

Xn= an-+b Lm

0d s = 25 , b=6, YM 11, 024

Q O o m) 4, Lu) = 4x2%U)

m= 4x4j = 5 y-5

the numbers are 4, 5.

4.O0000 5.000TO

A linear congruence generator is an algorithm that returns a sequence of pseudorandom numbers computed using discontinuous piecewise linear equations. This method is one of the oldest and best-known pseudorandom number generator algorithms.

The linear congruential generator (LCG) is a pseudorandom number generator (PRNG ) is a class of algorithms. Random number generation plays an important role in many applications, from cryptography to Monte Carlo methods.

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The integral of the given function is (\(x^2\) sin(x) - 2x cos(x) + 2 sin(x)) + C.

To evaluate the integral ∫x cos(x) (x - 2) dx, we can expand the expression and then integrate it term by term.

Expanding the expression:

∫x cos(x) (x - 2) dx = ∫(\(x^2\) - 2x) cos(x) dx

Now, we can integrate term by term:

∫\(x^2\) cos(x) dx - ∫2x cos(x) dx

For the first term, we can use integration by parts. Let's choose u = \(x^2\) and dv = cos(x) dx.

Differentiating u, we get du = 2x dx.

Integrating dv, we get v = ∫cos(x) dx = sin(x).

Using integration by parts formula ∫u dv = uv - ∫v du, we have:

∫\(x^2\) cos(x) dx = \(x^2\)sin(x) - ∫2x sin(x) dx

Now, let's focus on the second term ∫2x sin(x) dx. We can again use integration by parts. Let's choose u = 2x and dv = sin(x) dx.

Differentiating u, we get du = 2 dx.

Integrating dv, we get v = -cos(x).

Using integration by parts, we have:

∫2x sin(x) dx = -2x cos(x) - ∫(-2 cos(x)) dx

= -2x cos(x) + 2 ∫cos(x) dx

= -2x cos(x) + 2 sin(x)

Bringing everything together, we have:

∫\(x^2\)cos(x) dx - ∫2x cos(x) dx = (\(x^2\)sin(x) - 2x cos(x) + 2 sin(x)) + C

Therefore, the evaluated integral is (\(x^2\)sin(x) - 2x cos(x) + 2 sin(x)) + C, where C is the constant of integration.

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Points G, H, and I It seems to be the vertices of a triangle, forming the triangle GHI. Triangle GHI resembles triangle ABC.

A triangle is a three-sided polygon that is also known as the trigon. Every triangle has three sides and three angles, which might be different. In geometry, a triangle is a three-sided polygon with three edges and three vertices. The sum of a triangle's internal angles equals 180 degrees, which is its most important characteristic. This is known as a triangle's angle sum property.

Here,

Point G, H, I looks like the vertices of triangle making triangle GHI. Triangle GHI is similar to triangle ABC.

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The measure of angle that is coterminal with 425° is 425° + (1440n)°

Coterminal angles are angles in multiples of the angles in standard positions examples(360°).

It is mostly gotten by adding  360° or multiples of 360 to the angle.

One of the unique behavior of coterminal angles is that their sine, cosine and tangent are equal.

Analysis:

From the options, the only one with an addition of 360 or multiples of 360 is 425 + 1440n

If we put n = 1, the coterminal angle gotten is 1865.

if we find the sine of 425°, we get 0.9063 which is same as the sine of 1865°.

In conclusion, the coterminal angle to 425° is 425° + (1440n)°.

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Answer:

B. 425° – (840n)°, for any integer n

Answer:

232

Step-by-step explanation:

52x2=104

128+104=232

Explanation:

The probability of picking red is 0.13

The probability of picking orange is 0.20

The probability of picking either of these is 0.13+0.20 = 0.33

So the probability of picking neither of them is 1 - 0.33 = 0.67

There's a 67% of this happening.

Answer:

0.34

Step-by-step explanation:

because the probability of red is 20 and the probability of orange is 14 20 + 14 is 34.

Answer: r=1

Step-by-step explanation: r" is the correlation coefficient. It is always between -1 and 1, with -1 meaning the points are on a perfect straight line with negative slope, and r = 1 meaning the points are on a perfect straight line with positive slope.

The evaluation of the segment formed by the parallel lines using Thales Theorem also known as the triangle proportionality theorem are;

8. \(\overline {ST}\) is parallel to \(\overline{PR}\)

9. \(\overline{ST}\) is parallel to \(\overline{PR}\)

10. \(\overline{ST}\) is not parallel to \(\overline{PR}\)

11. x = 57.6

12. x = 25.8

13. x = 11

14. x = 10

15. x = 5

16. x = 17

Thales Theorem also known as the triangle proportionality theorem states that a parallel line to a side of a triangle that intersects the other two sides of the triangle, divides the two sides in the same proportion.

8. The ratio of the sides the segment \(\overline{ST}\) divides the sides QR and QP of the triangle ΔPQR into are; 7/11.2 = 10/16 = 0.625

Therefore; according to the Thales theorem, \(\overline{ST}\) ║ \(\overline{PR}\)

9. The ratio of the sides the parallel side to the base divides the other two sides are;

33/41.8 = 15/19

45/(102 - 45) = 45/57 = 15/19

Therefore, \(\overline{ST}\) and \(\overline{PR}\) bisects \(\overline{QP}\) and \(\overline{QR}\) into equal proportions and therefore, \(\overline{ST}\) ║ \(\overline{PR}\)

10. The ratio of the sides the segment \(\overline{ST}\)  bisects the other two sides are;

24/57 and 19/38

24/57 ≠ 19/38, therefore \(\overline{ST}\) ∦ \(\overline{PR}\)

Second part; To solve for x

11. x/30 = 48/25

x = (48/25) × 30 = 57.6

x = 57.6

12. x/34.4 = (49 - 28)/28

x = 34.4 × (49 - 28)/28 = 25.8

x = 25.8

13. (2·x + 6)/52.5 = 32/60

(2·x + 6) = 52.5 × (32/60)

x = (52.5 × (32/60)) - 6)/2 = 11

x = 11

14. (x - 3)/21 = (x - 1)/27

27·x - 27 × 3 = 21·x - 21

27·x - 81 = 21·x - 21

6·x = 60

x = 60 ÷ 6 = 10

x = 10

15. (35 - 20)/20 = (4·x - 2)/(7·x - 11)

15/20 = (4·x - 2)/(7·x - 11)

15 × (7·x - 11) = 20 × (4·x - 2)

105·x - 165 = 80·x - 40

105·x - 80·x = 165 - 40 = 125

25·x = 125

x = 125/25 = 5

x = 5

16. (x - 3)/35 = 4/(x - 7)

(x - 3) × (x - 7) = 35 × 4 = 140

x² - 10·x + 21 = 140

x² - 10·x - 119 = 0

(x - 17) × (x + 7) = 0

x = 17 or x = -7

Therefore, the possible value of x is 17

x = 17

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Answer:

280

Step-by-step explanation:

Answer:

c) 95 feet

Step-by-step explanation:

perimeter = πd

3.14*18=56.52 in

20 revolutions =56.52*20=1130 in =95 feet

Step-by-step explanation:

Given

f(x) = 10^x

Now

LHS

f(a + b + c)

= 10^ a + b + c

RHS

f(a) • f(b) • f(c)

= 10^a • 10^b • 10^ c

= 10 ^ a + b + c

Therefore LHS = RHS

Proved .

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Answer:

12 inches

Step-by-step explanation:

if i where you and wherent sure i would go around brainly looking for the answer are go with my gut

Answer:

Step-by-step explanation: everyone

Answer:

Step-by-step explanation:

It's hard to write the answer properly, but I'll give it a try (pretend the curly bracket { is extra long):

f(x) = {  2x + 1  if x ≥ 0

            x² - 2  if x < 0

Answer:

B.

Step-by-step explanation:

A- 12 + 5 = 17 (Cannot be the same)

B- 10 + 15 = 25 (More than the 3rd side) ✅

C- 9 + 11 = 20 (Cannot be less than the 3rd side)

D- 7 + 6 = 13 (Cannot be less than the 3rd side)

The probability of using a different catalyst in each of the four experimental runs is C(n3, 4) / C(n1 * n2 * n3, 4) (rounded to 4 decimal places).

a) The number of experimental runs possible depends on the number of temperatures, pressures, and catalysts available for use.

b) The number of experimental runs involving the lowest temperature and two lowest pressures depends on the specific values of these factors and the number of options available for each.

c) The probability of using a different catalyst on each of the four experimental runs can be calculated as follows:

Let's assume that there are n different catalysts available for use.

The number of ways to select the first catalyst is n options.

The number of ways to select the second catalyst is (n-1) options since one of the options have already been used.

The number of ways to select the third catalyst is (n-2) options, and

The number of ways to select the fourth catalyst is (n-3) options.

The total number of ways to select 4 catalysts out of n is n! / (n-4)!

The probability of selecting a different catalyst for each run can be calculated as:

(n options * (n-1) options * (n-2) options * (n-3) options) / (n! / (n-4)!) = (n * (n-1) * (n-2) * (n-3)) / n!

Rounding the answer to 4 decimal places, the probability is (n * (n-1) * (n-2) * (n-3)) / n!.

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Answer:

B it's the only one with the negative sign

Step-by-step explanation:

Answer:

it contains charecter it contain setting ik i spelt wrong idc

Step-by-step explanation:

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